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Commit 8f79df77 authored by Jeromy's avatar Jeromy
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vendor in gogo protobuf

parent f3d96ac5
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vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/all_test.go 0 → 100644
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"math"
"math/rand"
"reflect"
"runtime/debug"
"strings"
"testing"
"time"
. "QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto"
. "QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/testdata"
)
var globalO *Buffer
func old() *Buffer {
if globalO == nil {
globalO = NewBuffer(nil)
}
globalO.Reset()
return globalO
}
func equalbytes(b1, b2 []byte, t *testing.T) {
if len(b1) != len(b2) {
t.Errorf("wrong lengths: 2*%d != %d", len(b1), len(b2))
return
}
for i := 0; i < len(b1); i++ {
if b1[i] != b2[i] {
t.Errorf("bad byte[%d]:%x %x: %s %s", i, b1[i], b2[i], b1, b2)
}
}
}
func initGoTestField() *GoTestField {
f := new(GoTestField)
f.Label = String("label")
f.Type = String("type")
return f
}
// These are all structurally equivalent but the tag numbers differ.
// (It's remarkable that required, optional, and repeated all have
// 8 letters.)
func initGoTest_RequiredGroup() *GoTest_RequiredGroup {
return &GoTest_RequiredGroup{
RequiredField: String("required"),
}
}
func initGoTest_OptionalGroup() *GoTest_OptionalGroup {
return &GoTest_OptionalGroup{
RequiredField: String("optional"),
}
}
func initGoTest_RepeatedGroup() *GoTest_RepeatedGroup {
return &GoTest_RepeatedGroup{
RequiredField: String("repeated"),
}
}
func initGoTest(setdefaults bool) *GoTest {
pb := new(GoTest)
if setdefaults {
pb.F_BoolDefaulted = Bool(Default_GoTest_F_BoolDefaulted)
pb.F_Int32Defaulted = Int32(Default_GoTest_F_Int32Defaulted)
pb.F_Int64Defaulted = Int64(Default_GoTest_F_Int64Defaulted)
pb.F_Fixed32Defaulted = Uint32(Default_GoTest_F_Fixed32Defaulted)
pb.F_Fixed64Defaulted = Uint64(Default_GoTest_F_Fixed64Defaulted)
pb.F_Uint32Defaulted = Uint32(Default_GoTest_F_Uint32Defaulted)
pb.F_Uint64Defaulted = Uint64(Default_GoTest_F_Uint64Defaulted)
pb.F_FloatDefaulted = Float32(Default_GoTest_F_FloatDefaulted)
pb.F_DoubleDefaulted = Float64(Default_GoTest_F_DoubleDefaulted)
pb.F_StringDefaulted = String(Default_GoTest_F_StringDefaulted)
pb.F_BytesDefaulted = Default_GoTest_F_BytesDefaulted
pb.F_Sint32Defaulted = Int32(Default_GoTest_F_Sint32Defaulted)
pb.F_Sint64Defaulted = Int64(Default_GoTest_F_Sint64Defaulted)
}
pb.Kind = GoTest_TIME.Enum()
pb.RequiredField = initGoTestField()
pb.F_BoolRequired = Bool(true)
pb.F_Int32Required = Int32(3)
pb.F_Int64Required = Int64(6)
pb.F_Fixed32Required = Uint32(32)
pb.F_Fixed64Required = Uint64(64)
pb.F_Uint32Required = Uint32(3232)
pb.F_Uint64Required = Uint64(6464)
pb.F_FloatRequired = Float32(3232)
pb.F_DoubleRequired = Float64(6464)
pb.F_StringRequired = String("string")
pb.F_BytesRequired = []byte("bytes")
pb.F_Sint32Required = Int32(-32)
pb.F_Sint64Required = Int64(-64)
pb.Requiredgroup = initGoTest_RequiredGroup()
return pb
}
func fail(msg string, b *bytes.Buffer, s string, t *testing.T) {
data := b.Bytes()
ld := len(data)
ls := len(s) / 2
fmt.Printf("fail %s ld=%d ls=%d\n", msg, ld, ls)
// find the interesting spot - n
n := ls
if ld < ls {
n = ld
}
j := 0
for i := 0; i < n; i++ {
bs := hex(s[j])*16 + hex(s[j+1])
j += 2
if data[i] == bs {
continue
}
n = i
break
}
l := n - 10
if l < 0 {
l = 0
}
h := n + 10
// find the interesting spot - n
fmt.Printf("is[%d]:", l)
for i := l; i < h; i++ {
if i >= ld {
fmt.Printf(" --")
continue
}
fmt.Printf(" %.2x", data[i])
}
fmt.Printf("\n")
fmt.Printf("sb[%d]:", l)
for i := l; i < h; i++ {
if i >= ls {
fmt.Printf(" --")
continue
}
bs := hex(s[j])*16 + hex(s[j+1])
j += 2
fmt.Printf(" %.2x", bs)
}
fmt.Printf("\n")
t.Fail()
// t.Errorf("%s: \ngood: %s\nbad: %x", msg, s, b.Bytes())
// Print the output in a partially-decoded format; can
// be helpful when updating the test. It produces the output
// that is pasted, with minor edits, into the argument to verify().
// data := b.Bytes()
// nesting := 0
// for b.Len() > 0 {
// start := len(data) - b.Len()
// var u uint64
// u, err := DecodeVarint(b)
// if err != nil {
// fmt.Printf("decode error on varint:", err)
// return
// }
// wire := u & 0x7
// tag := u >> 3
// switch wire {
// case WireVarint:
// v, err := DecodeVarint(b)
// if err != nil {
// fmt.Printf("decode error on varint:", err)
// return
// }
// fmt.Printf("\t\t\"%x\" // field %d, encoding %d, value %d\n",
// data[start:len(data)-b.Len()], tag, wire, v)
// case WireFixed32:
// v, err := DecodeFixed32(b)
// if err != nil {
// fmt.Printf("decode error on fixed32:", err)
// return
// }
// fmt.Printf("\t\t\"%x\" // field %d, encoding %d, value %d\n",
// data[start:len(data)-b.Len()], tag, wire, v)
// case WireFixed64:
// v, err := DecodeFixed64(b)
// if err != nil {
// fmt.Printf("decode error on fixed64:", err)
// return
// }
// fmt.Printf("\t\t\"%x\" // field %d, encoding %d, value %d\n",
// data[start:len(data)-b.Len()], tag, wire, v)
// case WireBytes:
// nb, err := DecodeVarint(b)
// if err != nil {
// fmt.Printf("decode error on bytes:", err)
// return
// }
// after_tag := len(data) - b.Len()
// str := make([]byte, nb)
// _, err = b.Read(str)
// if err != nil {
// fmt.Printf("decode error on bytes:", err)
// return
// }
// fmt.Printf("\t\t\"%x\" \"%x\" // field %d, encoding %d (FIELD)\n",
// data[start:after_tag], str, tag, wire)
// case WireStartGroup:
// nesting++
// fmt.Printf("\t\t\"%x\"\t\t// start group field %d level %d\n",
// data[start:len(data)-b.Len()], tag, nesting)
// case WireEndGroup:
// fmt.Printf("\t\t\"%x\"\t\t// end group field %d level %d\n",
// data[start:len(data)-b.Len()], tag, nesting)
// nesting--
// default:
// fmt.Printf("unrecognized wire type %d\n", wire)
// return
// }
// }
}
func hex(c uint8) uint8 {
if '0' <= c && c <= '9' {
return c - '0'
}
if 'a' <= c && c <= 'f' {
return 10 + c - 'a'
}
if 'A' <= c && c <= 'F' {
return 10 + c - 'A'
}
return 0
}
func equal(b []byte, s string, t *testing.T) bool {
if 2*len(b) != len(s) {
// fail(fmt.Sprintf("wrong lengths: 2*%d != %d", len(b), len(s)), b, s, t)
fmt.Printf("wrong lengths: 2*%d != %d\n", len(b), len(s))
return false
}
for i, j := 0, 0; i < len(b); i, j = i+1, j+2 {
x := hex(s[j])*16 + hex(s[j+1])
if b[i] != x {
// fail(fmt.Sprintf("bad byte[%d]:%x %x", i, b[i], x), b, s, t)
fmt.Printf("bad byte[%d]:%x %x", i, b[i], x)
return false
}
}
return true
}
func overify(t *testing.T, pb *GoTest, expected string) {
o := old()
err := o.Marshal(pb)
if err != nil {
fmt.Printf("overify marshal-1 err = %v", err)
o.DebugPrint("", o.Bytes())
t.Fatalf("expected = %s", expected)
}
if !equal(o.Bytes(), expected, t) {
o.DebugPrint("overify neq 1", o.Bytes())
t.Fatalf("expected = %s", expected)
}
// Now test Unmarshal by recreating the original buffer.
pbd := new(GoTest)
err = o.Unmarshal(pbd)
if err != nil {
t.Fatalf("overify unmarshal err = %v", err)
o.DebugPrint("", o.Bytes())
t.Fatalf("string = %s", expected)
}
o.Reset()
err = o.Marshal(pbd)
if err != nil {
t.Errorf("overify marshal-2 err = %v", err)
o.DebugPrint("", o.Bytes())
t.Fatalf("string = %s", expected)
}
if !equal(o.Bytes(), expected, t) {
o.DebugPrint("overify neq 2", o.Bytes())
t.Fatalf("string = %s", expected)
}
}
// Simple tests for numeric encode/decode primitives (varint, etc.)
func TestNumericPrimitives(t *testing.T) {
for i := uint64(0); i < 1e6; i += 111 {
o := old()
if o.EncodeVarint(i) != nil {
t.Error("EncodeVarint")
break
}
x, e := o.DecodeVarint()
if e != nil {
t.Fatal("DecodeVarint")
}
if x != i {
t.Fatal("varint decode fail:", i, x)
}
o = old()
if o.EncodeFixed32(i) != nil {
t.Fatal("encFixed32")
}
x, e = o.DecodeFixed32()
if e != nil {
t.Fatal("decFixed32")
}
if x != i {
t.Fatal("fixed32 decode fail:", i, x)
}
o = old()
if o.EncodeFixed64(i*1234567) != nil {
t.Error("encFixed64")
break
}
x, e = o.DecodeFixed64()
if e != nil {
t.Error("decFixed64")
break
}
if x != i*1234567 {
t.Error("fixed64 decode fail:", i*1234567, x)
break
}
o = old()
i32 := int32(i - 12345)
if o.EncodeZigzag32(uint64(i32)) != nil {
t.Fatal("EncodeZigzag32")
}
x, e = o.DecodeZigzag32()
if e != nil {
t.Fatal("DecodeZigzag32")
}
if x != uint64(uint32(i32)) {
t.Fatal("zigzag32 decode fail:", i32, x)
}
o = old()
i64 := int64(i - 12345)
if o.EncodeZigzag64(uint64(i64)) != nil {
t.Fatal("EncodeZigzag64")
}
x, e = o.DecodeZigzag64()
if e != nil {
t.Fatal("DecodeZigzag64")
}
if x != uint64(i64) {
t.Fatal("zigzag64 decode fail:", i64, x)
}
}
}
// fakeMarshaler is a simple struct implementing Marshaler and Message interfaces.
type fakeMarshaler struct {
b []byte
err error
}
func (f *fakeMarshaler) Marshal() ([]byte, error) { return f.b, f.err }
func (f *fakeMarshaler) String() string { return fmt.Sprintf("Bytes: %v Error: %v", f.b, f.err) }
func (f *fakeMarshaler) ProtoMessage() {}
func (f *fakeMarshaler) Reset() {}
type msgWithFakeMarshaler struct {
M *fakeMarshaler `protobuf:"bytes,1,opt,name=fake"`
}
func (m *msgWithFakeMarshaler) String() string { return CompactTextString(m) }
func (m *msgWithFakeMarshaler) ProtoMessage() {}
func (m *msgWithFakeMarshaler) Reset() {}
// Simple tests for proto messages that implement the Marshaler interface.
func TestMarshalerEncoding(t *testing.T) {
tests := []struct {
name string
m Message
want []byte
wantErr error
}{
{
name: "Marshaler that fails",
m: &fakeMarshaler{
err: errors.New("some marshal err"),
b: []byte{5, 6, 7},
},
// Since there's an error, nothing should be written to buffer.
want: nil,
wantErr: errors.New("some marshal err"),
},
{
name: "Marshaler that fails with RequiredNotSetError",
m: &msgWithFakeMarshaler{
M: &fakeMarshaler{
err: &RequiredNotSetError{},
b: []byte{5, 6, 7},
},
},
// Since there's an error that can be continued after,
// the buffer should be written.
want: []byte{
10, 3, // for &msgWithFakeMarshaler
5, 6, 7, // for &fakeMarshaler
},
wantErr: &RequiredNotSetError{},
},
{
name: "Marshaler that succeeds",
m: &fakeMarshaler{
b: []byte{0, 1, 2, 3, 4, 127, 255},
},
want: []byte{0, 1, 2, 3, 4, 127, 255},
wantErr: nil,
},
}
for _, test := range tests {
b := NewBuffer(nil)
err := b.Marshal(test.m)
if _, ok := err.(*RequiredNotSetError); ok {
// We're not in package proto, so we can only assert the type in this case.
err = &RequiredNotSetError{}
}
if !reflect.DeepEqual(test.wantErr, err) {
t.Errorf("%s: got err %v wanted %v", test.name, err, test.wantErr)
}
if !reflect.DeepEqual(test.want, b.Bytes()) {
t.Errorf("%s: got bytes %v wanted %v", test.name, b.Bytes(), test.want)
}
}
}
// Simple tests for bytes
func TestBytesPrimitives(t *testing.T) {
o := old()
bytes := []byte{'n', 'o', 'w', ' ', 'i', 's', ' ', 't', 'h', 'e', ' ', 't', 'i', 'm', 'e'}
if o.EncodeRawBytes(bytes) != nil {
t.Error("EncodeRawBytes")
}
decb, e := o.DecodeRawBytes(false)
if e != nil {
t.Error("DecodeRawBytes")
}
equalbytes(bytes, decb, t)
}
// Simple tests for strings
func TestStringPrimitives(t *testing.T) {
o := old()
s := "now is the time"
if o.EncodeStringBytes(s) != nil {
t.Error("enc_string")
}
decs, e := o.DecodeStringBytes()
if e != nil {
t.Error("dec_string")
}
if s != decs {
t.Error("string encode/decode fail:", s, decs)
}
}
// Do we catch the "required bit not set" case?
func TestRequiredBit(t *testing.T) {
o := old()
pb := new(GoTest)
err := o.Marshal(pb)
if err == nil {
t.Error("did not catch missing required fields")
} else if strings.Index(err.Error(), "Kind") < 0 {
t.Error("wrong error type:", err)
}
}
// Check that all fields are nil.
// Clearly silly, and a residue from a more interesting test with an earlier,
// different initialization property, but it once caught a compiler bug so
// it lives.
func checkInitialized(pb *GoTest, t *testing.T) {
if pb.F_BoolDefaulted != nil {
t.Error("New or Reset did not set boolean:", *pb.F_BoolDefaulted)
}
if pb.F_Int32Defaulted != nil {
t.Error("New or Reset did not set int32:", *pb.F_Int32Defaulted)
}
if pb.F_Int64Defaulted != nil {
t.Error("New or Reset did not set int64:", *pb.F_Int64Defaulted)
}
if pb.F_Fixed32Defaulted != nil {
t.Error("New or Reset did not set fixed32:", *pb.F_Fixed32Defaulted)
}
if pb.F_Fixed64Defaulted != nil {
t.Error("New or Reset did not set fixed64:", *pb.F_Fixed64Defaulted)
}
if pb.F_Uint32Defaulted != nil {
t.Error("New or Reset did not set uint32:", *pb.F_Uint32Defaulted)
}
if pb.F_Uint64Defaulted != nil {
t.Error("New or Reset did not set uint64:", *pb.F_Uint64Defaulted)
}
if pb.F_FloatDefaulted != nil {
t.Error("New or Reset did not set float:", *pb.F_FloatDefaulted)
}
if pb.F_DoubleDefaulted != nil {
t.Error("New or Reset did not set double:", *pb.F_DoubleDefaulted)
}
if pb.F_StringDefaulted != nil {
t.Error("New or Reset did not set string:", *pb.F_StringDefaulted)
}
if pb.F_BytesDefaulted != nil {
t.Error("New or Reset did not set bytes:", string(pb.F_BytesDefaulted))
}
if pb.F_Sint32Defaulted != nil {
t.Error("New or Reset did not set int32:", *pb.F_Sint32Defaulted)
}
if pb.F_Sint64Defaulted != nil {
t.Error("New or Reset did not set int64:", *pb.F_Sint64Defaulted)
}
}
// Does Reset() reset?
func TestReset(t *testing.T) {
pb := initGoTest(true)
// muck with some values
pb.F_BoolDefaulted = Bool(false)
pb.F_Int32Defaulted = Int32(237)
pb.F_Int64Defaulted = Int64(12346)
pb.F_Fixed32Defaulted = Uint32(32000)
pb.F_Fixed64Defaulted = Uint64(666)
pb.F_Uint32Defaulted = Uint32(323232)
pb.F_Uint64Defaulted = nil
pb.F_FloatDefaulted = nil
pb.F_DoubleDefaulted = Float64(0)
pb.F_StringDefaulted = String("gotcha")
pb.F_BytesDefaulted = []byte("asdfasdf")
pb.F_Sint32Defaulted = Int32(123)
pb.F_Sint64Defaulted = Int64(789)
pb.Reset()
checkInitialized(pb, t)
}
// All required fields set, no defaults provided.
func TestEncodeDecode1(t *testing.T) {
pb := initGoTest(false)
overify(t, pb,
"0807"+ // field 1, encoding 0, value 7
"220d"+"0a056c6162656c120474797065"+ // field 4, encoding 2 (GoTestField)
"5001"+ // field 10, encoding 0, value 1
"5803"+ // field 11, encoding 0, value 3
"6006"+ // field 12, encoding 0, value 6
"6d20000000"+ // field 13, encoding 5, value 0x20
"714000000000000000"+ // field 14, encoding 1, value 0x40
"78a019"+ // field 15, encoding 0, value 0xca0 = 3232
"8001c032"+ // field 16, encoding 0, value 0x1940 = 6464
"8d0100004a45"+ // field 17, encoding 5, value 3232.0
"9101000000000040b940"+ // field 18, encoding 1, value 6464.0
"9a0106"+"737472696e67"+ // field 19, encoding 2, string "string"
"b304"+ // field 70, encoding 3, start group
"ba0408"+"7265717569726564"+ // field 71, encoding 2, string "required"
"b404"+ // field 70, encoding 4, end group
"aa0605"+"6279746573"+ // field 101, encoding 2, string "bytes"
"b0063f"+ // field 102, encoding 0, 0x3f zigzag32
"b8067f") // field 103, encoding 0, 0x7f zigzag64
}
// All required fields set, defaults provided.
func TestEncodeDecode2(t *testing.T) {
pb := initGoTest(true)
overify(t, pb,
"0807"+ // field 1, encoding 0, value 7
"220d"+"0a056c6162656c120474797065"+ // field 4, encoding 2 (GoTestField)
"5001"+ // field 10, encoding 0, value 1
"5803"+ // field 11, encoding 0, value 3
"6006"+ // field 12, encoding 0, value 6
"6d20000000"+ // field 13, encoding 5, value 32
"714000000000000000"+ // field 14, encoding 1, value 64
"78a019"+ // field 15, encoding 0, value 3232
"8001c032"+ // field 16, encoding 0, value 6464
"8d0100004a45"+ // field 17, encoding 5, value 3232.0
"9101000000000040b940"+ // field 18, encoding 1, value 6464.0
"9a0106"+"737472696e67"+ // field 19, encoding 2 string "string"
"c00201"+ // field 40, encoding 0, value 1
"c80220"+ // field 41, encoding 0, value 32
"d00240"+ // field 42, encoding 0, value 64
"dd0240010000"+ // field 43, encoding 5, value 320
"e1028002000000000000"+ // field 44, encoding 1, value 640
"e8028019"+ // field 45, encoding 0, value 3200
"f0028032"+ // field 46, encoding 0, value 6400
"fd02e0659948"+ // field 47, encoding 5, value 314159.0
"81030000000050971041"+ // field 48, encoding 1, value 271828.0
"8a0310"+"68656c6c6f2c2022776f726c6421220a"+ // field 49, encoding 2 string "hello, \"world!\"\n"
"b304"+ // start group field 70 level 1
"ba0408"+"7265717569726564"+ // field 71, encoding 2, string "required"
"b404"+ // end group field 70 level 1
"aa0605"+"6279746573"+ // field 101, encoding 2 string "bytes"
"b0063f"+ // field 102, encoding 0, 0x3f zigzag32
"b8067f"+ // field 103, encoding 0, 0x7f zigzag64
"8a1907"+"4269676e6f7365"+ // field 401, encoding 2, string "Bignose"
"90193f"+ // field 402, encoding 0, value 63
"98197f") // field 403, encoding 0, value 127
}
// All default fields set to their default value by hand
func TestEncodeDecode3(t *testing.T) {
pb := initGoTest(false)
pb.F_BoolDefaulted = Bool(true)
pb.F_Int32Defaulted = Int32(32)
pb.F_Int64Defaulted = Int64(64)
pb.F_Fixed32Defaulted = Uint32(320)
pb.F_Fixed64Defaulted = Uint64(640)
pb.F_Uint32Defaulted = Uint32(3200)
pb.F_Uint64Defaulted = Uint64(6400)
pb.F_FloatDefaulted = Float32(314159)
pb.F_DoubleDefaulted = Float64(271828)
pb.F_StringDefaulted = String("hello, \"world!\"\n")
pb.F_BytesDefaulted = []byte("Bignose")
pb.F_Sint32Defaulted = Int32(-32)
pb.F_Sint64Defaulted = Int64(-64)
overify(t, pb,
"0807"+ // field 1, encoding 0, value 7
"220d"+"0a056c6162656c120474797065"+ // field 4, encoding 2 (GoTestField)
"5001"+ // field 10, encoding 0, value 1
"5803"+ // field 11, encoding 0, value 3
"6006"+ // field 12, encoding 0, value 6
"6d20000000"+ // field 13, encoding 5, value 32
"714000000000000000"+ // field 14, encoding 1, value 64
"78a019"+ // field 15, encoding 0, value 3232
"8001c032"+ // field 16, encoding 0, value 6464
"8d0100004a45"+ // field 17, encoding 5, value 3232.0
"9101000000000040b940"+ // field 18, encoding 1, value 6464.0
"9a0106"+"737472696e67"+ // field 19, encoding 2 string "string"
"c00201"+ // field 40, encoding 0, value 1
"c80220"+ // field 41, encoding 0, value 32
"d00240"+ // field 42, encoding 0, value 64
"dd0240010000"+ // field 43, encoding 5, value 320
"e1028002000000000000"+ // field 44, encoding 1, value 640
"e8028019"+ // field 45, encoding 0, value 3200
"f0028032"+ // field 46, encoding 0, value 6400
"fd02e0659948"+ // field 47, encoding 5, value 314159.0
"81030000000050971041"+ // field 48, encoding 1, value 271828.0
"8a0310"+"68656c6c6f2c2022776f726c6421220a"+ // field 49, encoding 2 string "hello, \"world!\"\n"
"b304"+ // start group field 70 level 1
"ba0408"+"7265717569726564"+ // field 71, encoding 2, string "required"
"b404"+ // end group field 70 level 1
"aa0605"+"6279746573"+ // field 101, encoding 2 string "bytes"
"b0063f"+ // field 102, encoding 0, 0x3f zigzag32
"b8067f"+ // field 103, encoding 0, 0x7f zigzag64
"8a1907"+"4269676e6f7365"+ // field 401, encoding 2, string "Bignose"
"90193f"+ // field 402, encoding 0, value 63
"98197f") // field 403, encoding 0, value 127
}
// All required fields set, defaults provided, all non-defaulted optional fields have values.
func TestEncodeDecode4(t *testing.T) {
pb := initGoTest(true)
pb.Table = String("hello")
pb.Param = Int32(7)
pb.OptionalField = initGoTestField()
pb.F_BoolOptional = Bool(true)
pb.F_Int32Optional = Int32(32)
pb.F_Int64Optional = Int64(64)
pb.F_Fixed32Optional = Uint32(3232)
pb.F_Fixed64Optional = Uint64(6464)
pb.F_Uint32Optional = Uint32(323232)
pb.F_Uint64Optional = Uint64(646464)
pb.F_FloatOptional = Float32(32.)
pb.F_DoubleOptional = Float64(64.)
pb.F_StringOptional = String("hello")
pb.F_BytesOptional = []byte("Bignose")
pb.F_Sint32Optional = Int32(-32)
pb.F_Sint64Optional = Int64(-64)
pb.Optionalgroup = initGoTest_OptionalGroup()
overify(t, pb,
"0807"+ // field 1, encoding 0, value 7
"1205"+"68656c6c6f"+ // field 2, encoding 2, string "hello"
"1807"+ // field 3, encoding 0, value 7
"220d"+"0a056c6162656c120474797065"+ // field 4, encoding 2 (GoTestField)
"320d"+"0a056c6162656c120474797065"+ // field 6, encoding 2 (GoTestField)
"5001"+ // field 10, encoding 0, value 1
"5803"+ // field 11, encoding 0, value 3
"6006"+ // field 12, encoding 0, value 6
"6d20000000"+ // field 13, encoding 5, value 32
"714000000000000000"+ // field 14, encoding 1, value 64
"78a019"+ // field 15, encoding 0, value 3232
"8001c032"+ // field 16, encoding 0, value 6464
"8d0100004a45"+ // field 17, encoding 5, value 3232.0
"9101000000000040b940"+ // field 18, encoding 1, value 6464.0
"9a0106"+"737472696e67"+ // field 19, encoding 2 string "string"
"f00101"+ // field 30, encoding 0, value 1
"f80120"+ // field 31, encoding 0, value 32
"800240"+ // field 32, encoding 0, value 64
"8d02a00c0000"+ // field 33, encoding 5, value 3232
"91024019000000000000"+ // field 34, encoding 1, value 6464
"9802a0dd13"+ // field 35, encoding 0, value 323232
"a002c0ba27"+ // field 36, encoding 0, value 646464
"ad0200000042"+ // field 37, encoding 5, value 32.0
"b1020000000000005040"+ // field 38, encoding 1, value 64.0
"ba0205"+"68656c6c6f"+ // field 39, encoding 2, string "hello"
"c00201"+ // field 40, encoding 0, value 1
"c80220"+ // field 41, encoding 0, value 32
"d00240"+ // field 42, encoding 0, value 64
"dd0240010000"+ // field 43, encoding 5, value 320
"e1028002000000000000"+ // field 44, encoding 1, value 640
"e8028019"+ // field 45, encoding 0, value 3200
"f0028032"+ // field 46, encoding 0, value 6400
"fd02e0659948"+ // field 47, encoding 5, value 314159.0
"81030000000050971041"+ // field 48, encoding 1, value 271828.0
"8a0310"+"68656c6c6f2c2022776f726c6421220a"+ // field 49, encoding 2 string "hello, \"world!\"\n"
"b304"+ // start group field 70 level 1
"ba0408"+"7265717569726564"+ // field 71, encoding 2, string "required"
"b404"+ // end group field 70 level 1
"d305"+ // start group field 90 level 1
"da0508"+"6f7074696f6e616c"+ // field 91, encoding 2, string "optional"
"d405"+ // end group field 90 level 1
"aa0605"+"6279746573"+ // field 101, encoding 2 string "bytes"
"b0063f"+ // field 102, encoding 0, 0x3f zigzag32
"b8067f"+ // field 103, encoding 0, 0x7f zigzag64
"ea1207"+"4269676e6f7365"+ // field 301, encoding 2, string "Bignose"
"f0123f"+ // field 302, encoding 0, value 63
"f8127f"+ // field 303, encoding 0, value 127
"8a1907"+"4269676e6f7365"+ // field 401, encoding 2, string "Bignose"
"90193f"+ // field 402, encoding 0, value 63
"98197f") // field 403, encoding 0, value 127
}
// All required fields set, defaults provided, all repeated fields given two values.
func TestEncodeDecode5(t *testing.T) {
pb := initGoTest(true)
pb.RepeatedField = []*GoTestField{initGoTestField(), initGoTestField()}
pb.F_BoolRepeated = []bool{false, true}
pb.F_Int32Repeated = []int32{32, 33}
pb.F_Int64Repeated = []int64{64, 65}
pb.F_Fixed32Repeated = []uint32{3232, 3333}
pb.F_Fixed64Repeated = []uint64{6464, 6565}
pb.F_Uint32Repeated = []uint32{323232, 333333}
pb.F_Uint64Repeated = []uint64{646464, 656565}
pb.F_FloatRepeated = []float32{32., 33.}
pb.F_DoubleRepeated = []float64{64., 65.}
pb.F_StringRepeated = []string{"hello", "sailor"}
pb.F_BytesRepeated = [][]byte{[]byte("big"), []byte("nose")}
pb.F_Sint32Repeated = []int32{32, -32}
pb.F_Sint64Repeated = []int64{64, -64}
pb.Repeatedgroup = []*GoTest_RepeatedGroup{initGoTest_RepeatedGroup(), initGoTest_RepeatedGroup()}
overify(t, pb,
"0807"+ // field 1, encoding 0, value 7
"220d"+"0a056c6162656c120474797065"+ // field 4, encoding 2 (GoTestField)
"2a0d"+"0a056c6162656c120474797065"+ // field 5, encoding 2 (GoTestField)
"2a0d"+"0a056c6162656c120474797065"+ // field 5, encoding 2 (GoTestField)
"5001"+ // field 10, encoding 0, value 1
"5803"+ // field 11, encoding 0, value 3
"6006"+ // field 12, encoding 0, value 6
"6d20000000"+ // field 13, encoding 5, value 32
"714000000000000000"+ // field 14, encoding 1, value 64
"78a019"+ // field 15, encoding 0, value 3232
"8001c032"+ // field 16, encoding 0, value 6464
"8d0100004a45"+ // field 17, encoding 5, value 3232.0
"9101000000000040b940"+ // field 18, encoding 1, value 6464.0
"9a0106"+"737472696e67"+ // field 19, encoding 2 string "string"
"a00100"+ // field 20, encoding 0, value 0
"a00101"+ // field 20, encoding 0, value 1
"a80120"+ // field 21, encoding 0, value 32
"a80121"+ // field 21, encoding 0, value 33
"b00140"+ // field 22, encoding 0, value 64
"b00141"+ // field 22, encoding 0, value 65
"bd01a00c0000"+ // field 23, encoding 5, value 3232
"bd01050d0000"+ // field 23, encoding 5, value 3333
"c1014019000000000000"+ // field 24, encoding 1, value 6464
"c101a519000000000000"+ // field 24, encoding 1, value 6565
"c801a0dd13"+ // field 25, encoding 0, value 323232
"c80195ac14"+ // field 25, encoding 0, value 333333
"d001c0ba27"+ // field 26, encoding 0, value 646464
"d001b58928"+ // field 26, encoding 0, value 656565
"dd0100000042"+ // field 27, encoding 5, value 32.0
"dd0100000442"+ // field 27, encoding 5, value 33.0
"e1010000000000005040"+ // field 28, encoding 1, value 64.0
"e1010000000000405040"+ // field 28, encoding 1, value 65.0
"ea0105"+"68656c6c6f"+ // field 29, encoding 2, string "hello"
"ea0106"+"7361696c6f72"+ // field 29, encoding 2, string "sailor"
"c00201"+ // field 40, encoding 0, value 1
"c80220"+ // field 41, encoding 0, value 32
"d00240"+ // field 42, encoding 0, value 64
"dd0240010000"+ // field 43, encoding 5, value 320
"e1028002000000000000"+ // field 44, encoding 1, value 640
"e8028019"+ // field 45, encoding 0, value 3200
"f0028032"+ // field 46, encoding 0, value 6400
"fd02e0659948"+ // field 47, encoding 5, value 314159.0
"81030000000050971041"+ // field 48, encoding 1, value 271828.0
"8a0310"+"68656c6c6f2c2022776f726c6421220a"+ // field 49, encoding 2 string "hello, \"world!\"\n"
"b304"+ // start group field 70 level 1
"ba0408"+"7265717569726564"+ // field 71, encoding 2, string "required"
"b404"+ // end group field 70 level 1
"8305"+ // start group field 80 level 1
"8a0508"+"7265706561746564"+ // field 81, encoding 2, string "repeated"
"8405"+ // end group field 80 level 1
"8305"+ // start group field 80 level 1
"8a0508"+"7265706561746564"+ // field 81, encoding 2, string "repeated"
"8405"+ // end group field 80 level 1
"aa0605"+"6279746573"+ // field 101, encoding 2 string "bytes"
"b0063f"+ // field 102, encoding 0, 0x3f zigzag32
"b8067f"+ // field 103, encoding 0, 0x7f zigzag64
"ca0c03"+"626967"+ // field 201, encoding 2, string "big"
"ca0c04"+"6e6f7365"+ // field 201, encoding 2, string "nose"
"d00c40"+ // field 202, encoding 0, value 32
"d00c3f"+ // field 202, encoding 0, value -32
"d80c8001"+ // field 203, encoding 0, value 64
"d80c7f"+ // field 203, encoding 0, value -64
"8a1907"+"4269676e6f7365"+ // field 401, encoding 2, string "Bignose"
"90193f"+ // field 402, encoding 0, value 63
"98197f") // field 403, encoding 0, value 127
}
// All required fields set, all packed repeated fields given two values.
func TestEncodeDecode6(t *testing.T) {
pb := initGoTest(false)
pb.F_BoolRepeatedPacked = []bool{false, true}
pb.F_Int32RepeatedPacked = []int32{32, 33}
pb.F_Int64RepeatedPacked = []int64{64, 65}
pb.F_Fixed32RepeatedPacked = []uint32{3232, 3333}
pb.F_Fixed64RepeatedPacked = []uint64{6464, 6565}
pb.F_Uint32RepeatedPacked = []uint32{323232, 333333}
pb.F_Uint64RepeatedPacked = []uint64{646464, 656565}
pb.F_FloatRepeatedPacked = []float32{32., 33.}
pb.F_DoubleRepeatedPacked = []float64{64., 65.}
pb.F_Sint32RepeatedPacked = []int32{32, -32}
pb.F_Sint64RepeatedPacked = []int64{64, -64}
overify(t, pb,
"0807"+ // field 1, encoding 0, value 7
"220d"+"0a056c6162656c120474797065"+ // field 4, encoding 2 (GoTestField)
"5001"+ // field 10, encoding 0, value 1
"5803"+ // field 11, encoding 0, value 3
"6006"+ // field 12, encoding 0, value 6
"6d20000000"+ // field 13, encoding 5, value 32
"714000000000000000"+ // field 14, encoding 1, value 64
"78a019"+ // field 15, encoding 0, value 3232
"8001c032"+ // field 16, encoding 0, value 6464
"8d0100004a45"+ // field 17, encoding 5, value 3232.0
"9101000000000040b940"+ // field 18, encoding 1, value 6464.0
"9a0106"+"737472696e67"+ // field 19, encoding 2 string "string"
"9203020001"+ // field 50, encoding 2, 2 bytes, value 0, value 1
"9a03022021"+ // field 51, encoding 2, 2 bytes, value 32, value 33
"a203024041"+ // field 52, encoding 2, 2 bytes, value 64, value 65
"aa0308"+ // field 53, encoding 2, 8 bytes
"a00c0000050d0000"+ // value 3232, value 3333
"b20310"+ // field 54, encoding 2, 16 bytes
"4019000000000000a519000000000000"+ // value 6464, value 6565
"ba0306"+ // field 55, encoding 2, 6 bytes
"a0dd1395ac14"+ // value 323232, value 333333
"c20306"+ // field 56, encoding 2, 6 bytes
"c0ba27b58928"+ // value 646464, value 656565
"ca0308"+ // field 57, encoding 2, 8 bytes
"0000004200000442"+ // value 32.0, value 33.0
"d20310"+ // field 58, encoding 2, 16 bytes
"00000000000050400000000000405040"+ // value 64.0, value 65.0
"b304"+ // start group field 70 level 1
"ba0408"+"7265717569726564"+ // field 71, encoding 2, string "required"
"b404"+ // end group field 70 level 1
"aa0605"+"6279746573"+ // field 101, encoding 2 string "bytes"
"b0063f"+ // field 102, encoding 0, 0x3f zigzag32
"b8067f"+ // field 103, encoding 0, 0x7f zigzag64
"b21f02"+ // field 502, encoding 2, 2 bytes
"403f"+ // value 32, value -32
"ba1f03"+ // field 503, encoding 2, 3 bytes
"80017f") // value 64, value -64
}
// Test that we can encode empty bytes fields.
func TestEncodeDecodeBytes1(t *testing.T) {
pb := initGoTest(false)
// Create our bytes
pb.F_BytesRequired = []byte{}
pb.F_BytesRepeated = [][]byte{{}}
pb.F_BytesOptional = []byte{}
d, err := Marshal(pb)
if err != nil {
t.Error(err)
}
pbd := new(GoTest)
if err := Unmarshal(d, pbd); err != nil {
t.Error(err)
}
if pbd.F_BytesRequired == nil || len(pbd.F_BytesRequired) != 0 {
t.Error("required empty bytes field is incorrect")
}
if pbd.F_BytesRepeated == nil || len(pbd.F_BytesRepeated) == 1 && pbd.F_BytesRepeated[0] == nil {
t.Error("repeated empty bytes field is incorrect")
}
if pbd.F_BytesOptional == nil || len(pbd.F_BytesOptional) != 0 {
t.Error("optional empty bytes field is incorrect")
}
}
// Test that we encode nil-valued fields of a repeated bytes field correctly.
// Since entries in a repeated field cannot be nil, nil must mean empty value.
func TestEncodeDecodeBytes2(t *testing.T) {
pb := initGoTest(false)
// Create our bytes
pb.F_BytesRepeated = [][]byte{nil}
d, err := Marshal(pb)
if err != nil {
t.Error(err)
}
pbd := new(GoTest)
if err := Unmarshal(d, pbd); err != nil {
t.Error(err)
}
if len(pbd.F_BytesRepeated) != 1 || pbd.F_BytesRepeated[0] == nil {
t.Error("Unexpected value for repeated bytes field")
}
}
// All required fields set, defaults provided, all repeated fields given two values.
func TestSkippingUnrecognizedFields(t *testing.T) {
o := old()
pb := initGoTestField()
// Marshal it normally.
o.Marshal(pb)
// Now new a GoSkipTest record.
skip := &GoSkipTest{
SkipInt32: Int32(32),
SkipFixed32: Uint32(3232),
SkipFixed64: Uint64(6464),
SkipString: String("skipper"),
Skipgroup: &GoSkipTest_SkipGroup{
GroupInt32: Int32(75),
GroupString: String("wxyz"),
},
}
// Marshal it into same buffer.
o.Marshal(skip)
pbd := new(GoTestField)
o.Unmarshal(pbd)
// The __unrecognized field should be a marshaling of GoSkipTest
skipd := new(GoSkipTest)
o.SetBuf(pbd.XXX_unrecognized)
o.Unmarshal(skipd)
if *skipd.SkipInt32 != *skip.SkipInt32 {
t.Error("skip int32", skipd.SkipInt32)
}
if *skipd.SkipFixed32 != *skip.SkipFixed32 {
t.Error("skip fixed32", skipd.SkipFixed32)
}
if *skipd.SkipFixed64 != *skip.SkipFixed64 {
t.Error("skip fixed64", skipd.SkipFixed64)
}
if *skipd.SkipString != *skip.SkipString {
t.Error("skip string", *skipd.SkipString)
}
if *skipd.Skipgroup.GroupInt32 != *skip.Skipgroup.GroupInt32 {
t.Error("skip group int32", skipd.Skipgroup.GroupInt32)
}
if *skipd.Skipgroup.GroupString != *skip.Skipgroup.GroupString {
t.Error("skip group string", *skipd.Skipgroup.GroupString)
}
}
// Check that unrecognized fields of a submessage are preserved.
func TestSubmessageUnrecognizedFields(t *testing.T) {
nm := &NewMessage{
Nested: &NewMessage_Nested{
Name: String("Nigel"),
FoodGroup: String("carbs"),
},
}
b, err := Marshal(nm)
if err != nil {
t.Fatalf("Marshal of NewMessage: %v", err)
}
// Unmarshal into an OldMessage.
om := new(OldMessage)
if err := Unmarshal(b, om); err != nil {
t.Fatalf("Unmarshal to OldMessage: %v", err)
}
exp := &OldMessage{
Nested: &OldMessage_Nested{
Name: String("Nigel"),
// normal protocol buffer users should not do this
XXX_unrecognized: []byte("\x12\x05carbs"),
},
}
if !Equal(om, exp) {
t.Errorf("om = %v, want %v", om, exp)
}
// Clone the OldMessage.
om = Clone(om).(*OldMessage)
if !Equal(om, exp) {
t.Errorf("Clone(om) = %v, want %v", om, exp)
}
// Marshal the OldMessage, then unmarshal it into an empty NewMessage.
if b, err = Marshal(om); err != nil {
t.Fatalf("Marshal of OldMessage: %v", err)
}
t.Logf("Marshal(%v) -> %q", om, b)
nm2 := new(NewMessage)
if err := Unmarshal(b, nm2); err != nil {
t.Fatalf("Unmarshal to NewMessage: %v", err)
}
if !Equal(nm, nm2) {
t.Errorf("NewMessage round-trip: %v => %v", nm, nm2)
}
}
// Check that an int32 field can be upgraded to an int64 field.
func TestNegativeInt32(t *testing.T) {
om := &OldMessage{
Num: Int32(-1),
}
b, err := Marshal(om)
if err != nil {
t.Fatalf("Marshal of OldMessage: %v", err)
}
// Check the size. It should be 11 bytes;
// 1 for the field/wire type, and 10 for the negative number.
if len(b) != 11 {
t.Errorf("%v marshaled as %q, wanted 11 bytes", om, b)
}
// Unmarshal into a NewMessage.
nm := new(NewMessage)
if err := Unmarshal(b, nm); err != nil {
t.Fatalf("Unmarshal to NewMessage: %v", err)
}
want := &NewMessage{
Num: Int64(-1),
}
if !Equal(nm, want) {
t.Errorf("nm = %v, want %v", nm, want)
}
}
// Check that we can grow an array (repeated field) to have many elements.
// This test doesn't depend only on our encoding; for variety, it makes sure
// we create, encode, and decode the correct contents explicitly. It's therefore
// a bit messier.
// This test also uses (and hence tests) the Marshal/Unmarshal functions
// instead of the methods.
func TestBigRepeated(t *testing.T) {
pb := initGoTest(true)
// Create the arrays
const N = 50 // Internally the library starts much smaller.
pb.Repeatedgroup = make([]*GoTest_RepeatedGroup, N)
pb.F_Sint64Repeated = make([]int64, N)
pb.F_Sint32Repeated = make([]int32, N)
pb.F_BytesRepeated = make([][]byte, N)
pb.F_StringRepeated = make([]string, N)
pb.F_DoubleRepeated = make([]float64, N)
pb.F_FloatRepeated = make([]float32, N)
pb.F_Uint64Repeated = make([]uint64, N)
pb.F_Uint32Repeated = make([]uint32, N)
pb.F_Fixed64Repeated = make([]uint64, N)
pb.F_Fixed32Repeated = make([]uint32, N)
pb.F_Int64Repeated = make([]int64, N)
pb.F_Int32Repeated = make([]int32, N)
pb.F_BoolRepeated = make([]bool, N)
pb.RepeatedField = make([]*GoTestField, N)
// Fill in the arrays with checkable values.
igtf := initGoTestField()
igtrg := initGoTest_RepeatedGroup()
for i := 0; i < N; i++ {
pb.Repeatedgroup[i] = igtrg
pb.F_Sint64Repeated[i] = int64(i)
pb.F_Sint32Repeated[i] = int32(i)
s := fmt.Sprint(i)
pb.F_BytesRepeated[i] = []byte(s)
pb.F_StringRepeated[i] = s
pb.F_DoubleRepeated[i] = float64(i)
pb.F_FloatRepeated[i] = float32(i)
pb.F_Uint64Repeated[i] = uint64(i)
pb.F_Uint32Repeated[i] = uint32(i)
pb.F_Fixed64Repeated[i] = uint64(i)
pb.F_Fixed32Repeated[i] = uint32(i)
pb.F_Int64Repeated[i] = int64(i)
pb.F_Int32Repeated[i] = int32(i)
pb.F_BoolRepeated[i] = i%2 == 0
pb.RepeatedField[i] = igtf
}
// Marshal.
buf, _ := Marshal(pb)
// Now test Unmarshal by recreating the original buffer.
pbd := new(GoTest)
Unmarshal(buf, pbd)
// Check the checkable values
for i := uint64(0); i < N; i++ {
if pbd.Repeatedgroup[i] == nil { // TODO: more checking?
t.Error("pbd.Repeatedgroup bad")
}
var x uint64
x = uint64(pbd.F_Sint64Repeated[i])
if x != i {
t.Error("pbd.F_Sint64Repeated bad", x, i)
}
x = uint64(pbd.F_Sint32Repeated[i])
if x != i {
t.Error("pbd.F_Sint32Repeated bad", x, i)
}
s := fmt.Sprint(i)
equalbytes(pbd.F_BytesRepeated[i], []byte(s), t)
if pbd.F_StringRepeated[i] != s {
t.Error("pbd.F_Sint32Repeated bad", pbd.F_StringRepeated[i], i)
}
x = uint64(pbd.F_DoubleRepeated[i])
if x != i {
t.Error("pbd.F_DoubleRepeated bad", x, i)
}
x = uint64(pbd.F_FloatRepeated[i])
if x != i {
t.Error("pbd.F_FloatRepeated bad", x, i)
}
x = pbd.F_Uint64Repeated[i]
if x != i {
t.Error("pbd.F_Uint64Repeated bad", x, i)
}
x = uint64(pbd.F_Uint32Repeated[i])
if x != i {
t.Error("pbd.F_Uint32Repeated bad", x, i)
}
x = pbd.F_Fixed64Repeated[i]
if x != i {
t.Error("pbd.F_Fixed64Repeated bad", x, i)
}
x = uint64(pbd.F_Fixed32Repeated[i])
if x != i {
t.Error("pbd.F_Fixed32Repeated bad", x, i)
}
x = uint64(pbd.F_Int64Repeated[i])
if x != i {
t.Error("pbd.F_Int64Repeated bad", x, i)
}
x = uint64(pbd.F_Int32Repeated[i])
if x != i {
t.Error("pbd.F_Int32Repeated bad", x, i)
}
if pbd.F_BoolRepeated[i] != (i%2 == 0) {
t.Error("pbd.F_BoolRepeated bad", x, i)
}
if pbd.RepeatedField[i] == nil { // TODO: more checking?
t.Error("pbd.RepeatedField bad")
}
}
}
// Verify we give a useful message when decoding to the wrong structure type.
func TestTypeMismatch(t *testing.T) {
pb1 := initGoTest(true)
// Marshal
o := old()
o.Marshal(pb1)
// Now Unmarshal it to the wrong type.
pb2 := initGoTestField()
err := o.Unmarshal(pb2)
if err == nil {
t.Error("expected error, got no error")
} else if !strings.Contains(err.Error(), "bad wiretype") {
t.Error("expected bad wiretype error, got", err)
}
}
func encodeDecode(t *testing.T, in, out Message, msg string) {
buf, err := Marshal(in)
if err != nil {
t.Fatalf("failed marshaling %v: %v", msg, err)
}
if err := Unmarshal(buf, out); err != nil {
t.Fatalf("failed unmarshaling %v: %v", msg, err)
}
}
func TestPackedNonPackedDecoderSwitching(t *testing.T) {
np, p := new(NonPackedTest), new(PackedTest)
// non-packed -> packed
np.A = []int32{0, 1, 1, 2, 3, 5}
encodeDecode(t, np, p, "non-packed -> packed")
if !reflect.DeepEqual(np.A, p.B) {
t.Errorf("failed non-packed -> packed; np.A=%+v, p.B=%+v", np.A, p.B)
}
// packed -> non-packed
np.Reset()
p.B = []int32{3, 1, 4, 1, 5, 9}
encodeDecode(t, p, np, "packed -> non-packed")
if !reflect.DeepEqual(p.B, np.A) {
t.Errorf("failed packed -> non-packed; p.B=%+v, np.A=%+v", p.B, np.A)
}
}
func TestProto1RepeatedGroup(t *testing.T) {
pb := &MessageList{
Message: []*MessageList_Message{
{
Name: String("blah"),
Count: Int32(7),
},
// NOTE: pb.Message[1] is a nil
nil,
},
}
o := old()
err := o.Marshal(pb)
if err == nil || !strings.Contains(err.Error(), "repeated field Message has nil") {
t.Fatalf("unexpected or no error when marshaling: %v", err)
}
}
// Test that enums work. Checks for a bug introduced by making enums
// named types instead of int32: newInt32FromUint64 would crash with
// a type mismatch in reflect.PointTo.
func TestEnum(t *testing.T) {
pb := new(GoEnum)
pb.Foo = FOO_FOO1.Enum()
o := old()
if err := o.Marshal(pb); err != nil {
t.Fatal("error encoding enum:", err)
}
pb1 := new(GoEnum)
if err := o.Unmarshal(pb1); err != nil {
t.Fatal("error decoding enum:", err)
}
if *pb1.Foo != FOO_FOO1 {
t.Error("expected 7 but got ", *pb1.Foo)
}
}
// Enum types have String methods. Check that enum fields can be printed.
// We don't care what the value actually is, just as long as it doesn't crash.
func TestPrintingNilEnumFields(t *testing.T) {
pb := new(GoEnum)
_ = fmt.Sprintf("%+v", pb)
}
// Verify that absent required fields cause Marshal/Unmarshal to return errors.
func TestRequiredFieldEnforcement(t *testing.T) {
pb := new(GoTestField)
_, err := Marshal(pb)
if err == nil {
t.Error("marshal: expected error, got nil")
} else if strings.Index(err.Error(), "Label") < 0 {
t.Errorf("marshal: bad error type: %v", err)
}
// A slightly sneaky, yet valid, proto. It encodes the same required field twice,
// so simply counting the required fields is insufficient.
// field 1, encoding 2, value "hi"
buf := []byte("\x0A\x02hi\x0A\x02hi")
err = Unmarshal(buf, pb)
if err == nil {
t.Error("unmarshal: expected error, got nil")
} else if strings.Index(err.Error(), "{Unknown}") < 0 {
t.Errorf("unmarshal: bad error type: %v", err)
}
}
func TestTypedNilMarshal(t *testing.T) {
// A typed nil should return ErrNil and not crash.
_, err := Marshal((*GoEnum)(nil))
if err != ErrNil {
t.Errorf("Marshal: got err %v, want ErrNil", err)
}
}
// A type that implements the Marshaler interface, but is not nillable.
type nonNillableInt uint64
func (nni nonNillableInt) Marshal() ([]byte, error) {
return EncodeVarint(uint64(nni)), nil
}
type NNIMessage struct {
nni nonNillableInt
}
func (*NNIMessage) Reset() {}
func (*NNIMessage) String() string { return "" }
func (*NNIMessage) ProtoMessage() {}
// A type that implements the Marshaler interface and is nillable.
type nillableMessage struct {
x uint64
}
func (nm *nillableMessage) Marshal() ([]byte, error) {
return EncodeVarint(nm.x), nil
}
type NMMessage struct {
nm *nillableMessage
}
func (*NMMessage) Reset() {}
func (*NMMessage) String() string { return "" }
func (*NMMessage) ProtoMessage() {}
// Verify a type that uses the Marshaler interface, but has a nil pointer.
func TestNilMarshaler(t *testing.T) {
// Try a struct with a Marshaler field that is nil.
// It should be directly marshable.
nmm := new(NMMessage)
if _, err := Marshal(nmm); err != nil {
t.Error("unexpected error marshaling nmm: ", err)
}
// Try a struct with a Marshaler field that is not nillable.
nnim := new(NNIMessage)
nnim.nni = 7
var _ Marshaler = nnim.nni // verify it is truly a Marshaler
if _, err := Marshal(nnim); err != nil {
t.Error("unexpected error marshaling nnim: ", err)
}
}
func TestAllSetDefaults(t *testing.T) {
// Exercise SetDefaults with all scalar field types.
m := &Defaults{
// NaN != NaN, so override that here.
F_Nan: Float32(1.7),
}
expected := &Defaults{
F_Bool: Bool(true),
F_Int32: Int32(32),
F_Int64: Int64(64),
F_Fixed32: Uint32(320),
F_Fixed64: Uint64(640),
F_Uint32: Uint32(3200),
F_Uint64: Uint64(6400),
F_Float: Float32(314159),
F_Double: Float64(271828),
F_String: String(`hello, "world!"` + "\n"),
F_Bytes: []byte("Bignose"),
F_Sint32: Int32(-32),
F_Sint64: Int64(-64),
F_Enum: Defaults_GREEN.Enum(),
F_Pinf: Float32(float32(math.Inf(1))),
F_Ninf: Float32(float32(math.Inf(-1))),
F_Nan: Float32(1.7),
StrZero: String(""),
}
SetDefaults(m)
if !Equal(m, expected) {
t.Errorf("SetDefaults failed\n got %v\nwant %v", m, expected)
}
}
func TestSetDefaultsWithSetField(t *testing.T) {
// Check that a set value is not overridden.
m := &Defaults{
F_Int32: Int32(12),
}
SetDefaults(m)
if v := m.GetF_Int32(); v != 12 {
t.Errorf("m.FInt32 = %v, want 12", v)
}
}
func TestSetDefaultsWithSubMessage(t *testing.T) {
m := &OtherMessage{
Key: Int64(123),
Inner: &InnerMessage{
Host: String("gopher"),
},
}
expected := &OtherMessage{
Key: Int64(123),
Inner: &InnerMessage{
Host: String("gopher"),
Port: Int32(4000),
},
}
SetDefaults(m)
if !Equal(m, expected) {
t.Errorf("\n got %v\nwant %v", m, expected)
}
}
func TestSetDefaultsWithRepeatedSubMessage(t *testing.T) {
m := &MyMessage{
RepInner: []*InnerMessage{{}},
}
expected := &MyMessage{
RepInner: []*InnerMessage{{
Port: Int32(4000),
}},
}
SetDefaults(m)
if !Equal(m, expected) {
t.Errorf("\n got %v\nwant %v", m, expected)
}
}
func TestSetDefaultWithRepeatedNonMessage(t *testing.T) {
m := &MyMessage{
Pet: []string{"turtle", "wombat"},
}
expected := Clone(m)
SetDefaults(m)
if !Equal(m, expected) {
t.Errorf("\n got %v\nwant %v", m, expected)
}
}
func TestMaximumTagNumber(t *testing.T) {
m := &MaxTag{
LastField: String("natural goat essence"),
}
buf, err := Marshal(m)
if err != nil {
t.Fatalf("proto.Marshal failed: %v", err)
}
m2 := new(MaxTag)
if err := Unmarshal(buf, m2); err != nil {
t.Fatalf("proto.Unmarshal failed: %v", err)
}
if got, want := m2.GetLastField(), *m.LastField; got != want {
t.Errorf("got %q, want %q", got, want)
}
}
func TestJSON(t *testing.T) {
m := &MyMessage{
Count: Int32(4),
Pet: []string{"bunny", "kitty"},
Inner: &InnerMessage{
Host: String("cauchy"),
},
Bikeshed: MyMessage_GREEN.Enum(),
}
const expected = `{"count":4,"pet":["bunny","kitty"],"inner":{"host":"cauchy"},"bikeshed":1}`
b, err := json.Marshal(m)
if err != nil {
t.Fatalf("json.Marshal failed: %v", err)
}
s := string(b)
if s != expected {
t.Errorf("got %s\nwant %s", s, expected)
}
received := new(MyMessage)
if err := json.Unmarshal(b, received); err != nil {
t.Fatalf("json.Unmarshal failed: %v", err)
}
if !Equal(received, m) {
t.Fatalf("got %s, want %s", received, m)
}
// Test unmarshalling of JSON with symbolic enum name.
const old = `{"count":4,"pet":["bunny","kitty"],"inner":{"host":"cauchy"},"bikeshed":"GREEN"}`
received.Reset()
if err := json.Unmarshal([]byte(old), received); err != nil {
t.Fatalf("json.Unmarshal failed: %v", err)
}
if !Equal(received, m) {
t.Fatalf("got %s, want %s", received, m)
}
}
func TestBadWireType(t *testing.T) {
b := []byte{7<<3 | 6} // field 7, wire type 6
pb := new(OtherMessage)
if err := Unmarshal(b, pb); err == nil {
t.Errorf("Unmarshal did not fail")
} else if !strings.Contains(err.Error(), "unknown wire type") {
t.Errorf("wrong error: %v", err)
}
}
func TestBytesWithInvalidLength(t *testing.T) {
// If a byte sequence has an invalid (negative) length, Unmarshal should not panic.
b := []byte{2<<3 | WireBytes, 0xff, 0xff, 0xff, 0xff, 0xff, 0}
Unmarshal(b, new(MyMessage))
}
func TestLengthOverflow(t *testing.T) {
// Overflowing a length should not panic.
b := []byte{2<<3 | WireBytes, 1, 1, 3<<3 | WireBytes, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x01}
Unmarshal(b, new(MyMessage))
}
func TestVarintOverflow(t *testing.T) {
// Overflowing a 64-bit length should not be allowed.
b := []byte{1<<3 | WireVarint, 0x01, 3<<3 | WireBytes, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x01}
if err := Unmarshal(b, new(MyMessage)); err == nil {
t.Fatalf("Overflowed uint64 length without error")
}
}
func TestUnmarshalFuzz(t *testing.T) {
const N = 1000
seed := time.Now().UnixNano()
t.Logf("RNG seed is %d", seed)
rng := rand.New(rand.NewSource(seed))
buf := make([]byte, 20)
for i := 0; i < N; i++ {
for j := range buf {
buf[j] = byte(rng.Intn(256))
}
fuzzUnmarshal(t, buf)
}
}
func TestMergeMessages(t *testing.T) {
pb := &MessageList{Message: []*MessageList_Message{{Name: String("x"), Count: Int32(1)}}}
data, err := Marshal(pb)
if err != nil {
t.Fatalf("Marshal: %v", err)
}
pb1 := new(MessageList)
if err := Unmarshal(data, pb1); err != nil {
t.Fatalf("first Unmarshal: %v", err)
}
if err := Unmarshal(data, pb1); err != nil {
t.Fatalf("second Unmarshal: %v", err)
}
if len(pb1.Message) != 1 {
t.Errorf("two Unmarshals produced %d Messages, want 1", len(pb1.Message))
}
pb2 := new(MessageList)
if err := UnmarshalMerge(data, pb2); err != nil {
t.Fatalf("first UnmarshalMerge: %v", err)
}
if err := UnmarshalMerge(data, pb2); err != nil {
t.Fatalf("second UnmarshalMerge: %v", err)
}
if len(pb2.Message) != 2 {
t.Errorf("two UnmarshalMerges produced %d Messages, want 2", len(pb2.Message))
}
}
func TestExtensionMarshalOrder(t *testing.T) {
m := &MyMessage{Count: Int(123)}
if err := SetExtension(m, E_Ext_More, &Ext{Data: String("alpha")}); err != nil {
t.Fatalf("SetExtension: %v", err)
}
if err := SetExtension(m, E_Ext_Text, String("aleph")); err != nil {
t.Fatalf("SetExtension: %v", err)
}
if err := SetExtension(m, E_Ext_Number, Int32(1)); err != nil {
t.Fatalf("SetExtension: %v", err)
}
// Serialize m several times, and check we get the same bytes each time.
var orig []byte
for i := 0; i < 100; i++ {
b, err := Marshal(m)
if err != nil {
t.Fatalf("Marshal: %v", err)
}
if i == 0 {
orig = b
continue
}
if !bytes.Equal(b, orig) {
t.Errorf("Bytes differ on attempt #%d", i)
}
}
}
// Many extensions, because small maps might not iterate differently on each iteration.
var exts = []*ExtensionDesc{
E_X201,
E_X202,
E_X203,
E_X204,
E_X205,
E_X206,
E_X207,
E_X208,
E_X209,
E_X210,
E_X211,
E_X212,
E_X213,
E_X214,
E_X215,
E_X216,
E_X217,
E_X218,
E_X219,
E_X220,
E_X221,
E_X222,
E_X223,
E_X224,
E_X225,
E_X226,
E_X227,
E_X228,
E_X229,
E_X230,
E_X231,
E_X232,
E_X233,
E_X234,
E_X235,
E_X236,
E_X237,
E_X238,
E_X239,
E_X240,
E_X241,
E_X242,
E_X243,
E_X244,
E_X245,
E_X246,
E_X247,
E_X248,
E_X249,
E_X250,
}
func TestMessageSetMarshalOrder(t *testing.T) {
m := &MyMessageSet{}
for _, x := range exts {
if err := SetExtension(m, x, &Empty{}); err != nil {
t.Fatalf("SetExtension: %v", err)
}
}
buf, err := Marshal(m)
if err != nil {
t.Fatalf("Marshal: %v", err)
}
// Serialize m several times, and check we get the same bytes each time.
for i := 0; i < 10; i++ {
b1, err := Marshal(m)
if err != nil {
t.Fatalf("Marshal: %v", err)
}
if !bytes.Equal(b1, buf) {
t.Errorf("Bytes differ on re-Marshal #%d", i)
}
m2 := &MyMessageSet{}
if err := Unmarshal(buf, m2); err != nil {
t.Errorf("Unmarshal: %v", err)
}
b2, err := Marshal(m2)
if err != nil {
t.Errorf("re-Marshal: %v", err)
}
if !bytes.Equal(b2, buf) {
t.Errorf("Bytes differ on round-trip #%d", i)
}
}
}
func TestUnmarshalMergesMessages(t *testing.T) {
// If a nested message occurs twice in the input,
// the fields should be merged when decoding.
a := &OtherMessage{
Key: Int64(123),
Inner: &InnerMessage{
Host: String("polhode"),
Port: Int32(1234),
},
}
aData, err := Marshal(a)
if err != nil {
t.Fatalf("Marshal(a): %v", err)
}
b := &OtherMessage{
Weight: Float32(1.2),
Inner: &InnerMessage{
Host: String("herpolhode"),
Connected: Bool(true),
},
}
bData, err := Marshal(b)
if err != nil {
t.Fatalf("Marshal(b): %v", err)
}
want := &OtherMessage{
Key: Int64(123),
Weight: Float32(1.2),
Inner: &InnerMessage{
Host: String("herpolhode"),
Port: Int32(1234),
Connected: Bool(true),
},
}
got := new(OtherMessage)
if err := Unmarshal(append(aData, bData...), got); err != nil {
t.Fatalf("Unmarshal: %v", err)
}
if !Equal(got, want) {
t.Errorf("\n got %v\nwant %v", got, want)
}
}
func TestEncodingSizes(t *testing.T) {
tests := []struct {
m Message
n int
}{
{&Defaults{F_Int32: Int32(math.MaxInt32)}, 6},
{&Defaults{F_Int32: Int32(math.MinInt32)}, 11},
{&Defaults{F_Uint32: Uint32(uint32(math.MaxInt32) + 1)}, 6},
{&Defaults{F_Uint32: Uint32(math.MaxUint32)}, 6},
}
for _, test := range tests {
b, err := Marshal(test.m)
if err != nil {
t.Errorf("Marshal(%v): %v", test.m, err)
continue
}
if len(b) != test.n {
t.Errorf("Marshal(%v) yielded %d bytes, want %d bytes", test.m, len(b), test.n)
}
}
}
func TestRequiredNotSetError(t *testing.T) {
pb := initGoTest(false)
pb.RequiredField.Label = nil
pb.F_Int32Required = nil
pb.F_Int64Required = nil
expected := "0807" + // field 1, encoding 0, value 7
"2206" + "120474797065" + // field 4, encoding 2 (GoTestField)
"5001" + // field 10, encoding 0, value 1
"6d20000000" + // field 13, encoding 5, value 0x20
"714000000000000000" + // field 14, encoding 1, value 0x40
"78a019" + // field 15, encoding 0, value 0xca0 = 3232
"8001c032" + // field 16, encoding 0, value 0x1940 = 6464
"8d0100004a45" + // field 17, encoding 5, value 3232.0
"9101000000000040b940" + // field 18, encoding 1, value 6464.0
"9a0106" + "737472696e67" + // field 19, encoding 2, string "string"
"b304" + // field 70, encoding 3, start group
"ba0408" + "7265717569726564" + // field 71, encoding 2, string "required"
"b404" + // field 70, encoding 4, end group
"aa0605" + "6279746573" + // field 101, encoding 2, string "bytes"
"b0063f" + // field 102, encoding 0, 0x3f zigzag32
"b8067f" // field 103, encoding 0, 0x7f zigzag64
o := old()
bytes, err := Marshal(pb)
if _, ok := err.(*RequiredNotSetError); !ok {
fmt.Printf("marshal-1 err = %v, want *RequiredNotSetError", err)
o.DebugPrint("", bytes)
t.Fatalf("expected = %s", expected)
}
if strings.Index(err.Error(), "RequiredField.Label") < 0 {
t.Errorf("marshal-1 wrong err msg: %v", err)
}
if !equal(bytes, expected, t) {
o.DebugPrint("neq 1", bytes)
t.Fatalf("expected = %s", expected)
}
// Now test Unmarshal by recreating the original buffer.
pbd := new(GoTest)
err = Unmarshal(bytes, pbd)
if _, ok := err.(*RequiredNotSetError); !ok {
t.Fatalf("unmarshal err = %v, want *RequiredNotSetError", err)
o.DebugPrint("", bytes)
t.Fatalf("string = %s", expected)
}
if strings.Index(err.Error(), "RequiredField.{Unknown}") < 0 {
t.Errorf("unmarshal wrong err msg: %v", err)
}
bytes, err = Marshal(pbd)
if _, ok := err.(*RequiredNotSetError); !ok {
t.Errorf("marshal-2 err = %v, want *RequiredNotSetError", err)
o.DebugPrint("", bytes)
t.Fatalf("string = %s", expected)
}
if strings.Index(err.Error(), "RequiredField.Label") < 0 {
t.Errorf("marshal-2 wrong err msg: %v", err)
}
if !equal(bytes, expected, t) {
o.DebugPrint("neq 2", bytes)
t.Fatalf("string = %s", expected)
}
}
func fuzzUnmarshal(t *testing.T, data []byte) {
defer func() {
if e := recover(); e != nil {
t.Errorf("These bytes caused a panic: %+v", data)
t.Logf("Stack:\n%s", debug.Stack())
t.FailNow()
}
}()
pb := new(MyMessage)
Unmarshal(data, pb)
}
func TestMapFieldMarshal(t *testing.T) {
m := &MessageWithMap{
NameMapping: map[int32]string{
1: "Rob",
4: "Ian",
8: "Dave",
},
}
b, err := Marshal(m)
if err != nil {
t.Fatalf("Marshal: %v", err)
}
// b should be the concatenation of these three byte sequences in some order.
parts := []string{
"\n\a\b\x01\x12\x03Rob",
"\n\a\b\x04\x12\x03Ian",
"\n\b\b\x08\x12\x04Dave",
}
ok := false
for i := range parts {
for j := range parts {
if j == i {
continue
}
for k := range parts {
if k == i || k == j {
continue
}
try := parts[i] + parts[j] + parts[k]
if bytes.Equal(b, []byte(try)) {
ok = true
break
}
}
}
}
if !ok {
t.Fatalf("Incorrect Marshal output.\n got %q\nwant %q (or a permutation of that)", b, parts[0]+parts[1]+parts[2])
}
t.Logf("FYI b: %q", b)
(new(Buffer)).DebugPrint("Dump of b", b)
}
func TestMapFieldRoundTrips(t *testing.T) {
m := &MessageWithMap{
NameMapping: map[int32]string{
1: "Rob",
4: "Ian",
8: "Dave",
},
MsgMapping: map[int64]*FloatingPoint{
0x7001: {F: Float64(2.0)},
},
ByteMapping: map[bool][]byte{
false: []byte("that's not right!"),
true: []byte("aye, 'tis true!"),
},
}
b, err := Marshal(m)
if err != nil {
t.Fatalf("Marshal: %v", err)
}
t.Logf("FYI b: %q", b)
m2 := new(MessageWithMap)
if err := Unmarshal(b, m2); err != nil {
t.Fatalf("Unmarshal: %v", err)
}
for _, pair := range [][2]interface{}{
{m.NameMapping, m2.NameMapping},
{m.MsgMapping, m2.MsgMapping},
{m.ByteMapping, m2.ByteMapping},
} {
if !reflect.DeepEqual(pair[0], pair[1]) {
t.Errorf("Map did not survive a round trip.\ninitial: %v\n final: %v", pair[0], pair[1])
}
}
}
func TestMapFieldWithNil(t *testing.T) {
m := &MessageWithMap{
MsgMapping: map[int64]*FloatingPoint{
1: nil,
},
}
b, err := Marshal(m)
if err == nil {
t.Fatalf("Marshal of bad map should have failed, got these bytes: %v", b)
}
}
func TestOneof(t *testing.T) {
m := &Communique{}
b, err := Marshal(m)
if err != nil {
t.Fatalf("Marshal of empty message with oneof: %v", err)
}
if len(b) != 0 {
t.Errorf("Marshal of empty message yielded too many bytes: %v", b)
}
m = &Communique{
Union: &Communique_Name{"Barry"},
}
// Round-trip.
b, err = Marshal(m)
if err != nil {
t.Fatalf("Marshal of message with oneof: %v", err)
}
if len(b) != 7 { // name tag/wire (1) + name len (1) + name (5)
t.Errorf("Incorrect marshal of message with oneof: %v", b)
}
m.Reset()
if err := Unmarshal(b, m); err != nil {
t.Fatalf("Unmarshal of message with oneof: %v", err)
}
if x, ok := m.Union.(*Communique_Name); !ok || x.Name != "Barry" {
t.Errorf("After round trip, Union = %+v", m.Union)
}
if name := m.GetName(); name != "Barry" {
t.Errorf("After round trip, GetName = %q, want %q", name, "Barry")
}
// Let's try with a message in the oneof.
m.Union = &Communique_Msg{&Strings{StringField: String("deep deep string")}}
b, err = Marshal(m)
if err != nil {
t.Fatalf("Marshal of message with oneof set to message: %v", err)
}
if len(b) != 20 { // msg tag/wire (1) + msg len (1) + msg (1 + 1 + 16)
t.Errorf("Incorrect marshal of message with oneof set to message: %v", b)
}
m.Reset()
if err := Unmarshal(b, m); err != nil {
t.Fatalf("Unmarshal of message with oneof set to message: %v", err)
}
ss, ok := m.Union.(*Communique_Msg)
if !ok || ss.Msg.GetStringField() != "deep deep string" {
t.Errorf("After round trip with oneof set to message, Union = %+v", m.Union)
}
}
func TestInefficientPackedBool(t *testing.T) {
// https://github.com/golang/protobuf/issues/76
inp := []byte{
0x12, 0x02, // 0x12 = 2<<3|2; 2 bytes
// Usually a bool should take a single byte,
// but it is permitted to be any varint.
0xb9, 0x30,
}
if err := Unmarshal(inp, new(MoreRepeated)); err != nil {
t.Error(err)
}
}
// Benchmarks
func testMsg() *GoTest {
pb := initGoTest(true)
const N = 1000 // Internally the library starts much smaller.
pb.F_Int32Repeated = make([]int32, N)
pb.F_DoubleRepeated = make([]float64, N)
for i := 0; i < N; i++ {
pb.F_Int32Repeated[i] = int32(i)
pb.F_DoubleRepeated[i] = float64(i)
}
return pb
}
func bytesMsg() *GoTest {
pb := initGoTest(true)
buf := make([]byte, 4000)
for i := range buf {
buf[i] = byte(i)
}
pb.F_BytesDefaulted = buf
return pb
}
func benchmarkMarshal(b *testing.B, pb Message, marshal func(Message) ([]byte, error)) {
d, _ := marshal(pb)
b.SetBytes(int64(len(d)))
b.ResetTimer()
for i := 0; i < b.N; i++ {
marshal(pb)
}
}
func benchmarkBufferMarshal(b *testing.B, pb Message) {
p := NewBuffer(nil)
benchmarkMarshal(b, pb, func(pb0 Message) ([]byte, error) {
p.Reset()
err := p.Marshal(pb0)
return p.Bytes(), err
})
}
func benchmarkSize(b *testing.B, pb Message) {
benchmarkMarshal(b, pb, func(pb0 Message) ([]byte, error) {
Size(pb)
return nil, nil
})
}
func newOf(pb Message) Message {
in := reflect.ValueOf(pb)
if in.IsNil() {
return pb
}
return reflect.New(in.Type().Elem()).Interface().(Message)
}
func benchmarkUnmarshal(b *testing.B, pb Message, unmarshal func([]byte, Message) error) {
d, _ := Marshal(pb)
b.SetBytes(int64(len(d)))
pbd := newOf(pb)
b.ResetTimer()
for i := 0; i < b.N; i++ {
unmarshal(d, pbd)
}
}
func benchmarkBufferUnmarshal(b *testing.B, pb Message) {
p := NewBuffer(nil)
benchmarkUnmarshal(b, pb, func(d []byte, pb0 Message) error {
p.SetBuf(d)
return p.Unmarshal(pb0)
})
}
// Benchmark{Marshal,BufferMarshal,Size,Unmarshal,BufferUnmarshal}{,Bytes}
func BenchmarkMarshal(b *testing.B) {
benchmarkMarshal(b, testMsg(), Marshal)
}
func BenchmarkBufferMarshal(b *testing.B) {
benchmarkBufferMarshal(b, testMsg())
}
func BenchmarkSize(b *testing.B) {
benchmarkSize(b, testMsg())
}
func BenchmarkUnmarshal(b *testing.B) {
benchmarkUnmarshal(b, testMsg(), Unmarshal)
}
func BenchmarkBufferUnmarshal(b *testing.B) {
benchmarkBufferUnmarshal(b, testMsg())
}
func BenchmarkMarshalBytes(b *testing.B) {
benchmarkMarshal(b, bytesMsg(), Marshal)
}
func BenchmarkBufferMarshalBytes(b *testing.B) {
benchmarkBufferMarshal(b, bytesMsg())
}
func BenchmarkSizeBytes(b *testing.B) {
benchmarkSize(b, bytesMsg())
}
func BenchmarkUnmarshalBytes(b *testing.B) {
benchmarkUnmarshal(b, bytesMsg(), Unmarshal)
}
func BenchmarkBufferUnmarshalBytes(b *testing.B) {
benchmarkBufferUnmarshal(b, bytesMsg())
}
func BenchmarkUnmarshalUnrecognizedFields(b *testing.B) {
b.StopTimer()
pb := initGoTestField()
skip := &GoSkipTest{
SkipInt32: Int32(32),
SkipFixed32: Uint32(3232),
SkipFixed64: Uint64(6464),
SkipString: String("skipper"),
Skipgroup: &GoSkipTest_SkipGroup{
GroupInt32: Int32(75),
GroupString: String("wxyz"),
},
}
pbd := new(GoTestField)
p := NewBuffer(nil)
p.Marshal(pb)
p.Marshal(skip)
p2 := NewBuffer(nil)
b.StartTimer()
for i := 0; i < b.N; i++ {
p2.SetBuf(p.Bytes())
p2.Unmarshal(pbd)
}
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/clone.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Protocol buffer deep copy and merge.
// TODO: MessageSet and RawMessage.
package proto
import (
"log"
"reflect"
"strings"
)
// Clone returns a deep copy of a protocol buffer.
func Clone(pb Message) Message {
in := reflect.ValueOf(pb)
if in.IsNil() {
return pb
}
out := reflect.New(in.Type().Elem())
// out is empty so a merge is a deep copy.
mergeStruct(out.Elem(), in.Elem())
return out.Interface().(Message)
}
// Merge merges src into dst.
// Required and optional fields that are set in src will be set to that value in dst.
// Elements of repeated fields will be appended.
// Merge panics if src and dst are not the same type, or if dst is nil.
func Merge(dst, src Message) {
in := reflect.ValueOf(src)
out := reflect.ValueOf(dst)
if out.IsNil() {
panic("proto: nil destination")
}
if in.Type() != out.Type() {
// Explicit test prior to mergeStruct so that mistyped nils will fail
panic("proto: type mismatch")
}
if in.IsNil() {
// Merging nil into non-nil is a quiet no-op
return
}
mergeStruct(out.Elem(), in.Elem())
}
func mergeStruct(out, in reflect.Value) {
sprop := GetProperties(in.Type())
for i := 0; i < in.NumField(); i++ {
f := in.Type().Field(i)
if strings.HasPrefix(f.Name, "XXX_") {
continue
}
mergeAny(out.Field(i), in.Field(i), false, sprop.Prop[i])
}
if emIn, ok := in.Addr().Interface().(extensionsMap); ok {
emOut := out.Addr().Interface().(extensionsMap)
mergeExtension(emOut.ExtensionMap(), emIn.ExtensionMap())
} else if emIn, ok := in.Addr().Interface().(extensionsBytes); ok {
emOut := out.Addr().Interface().(extensionsBytes)
bIn := emIn.GetExtensions()
bOut := emOut.GetExtensions()
*bOut = append(*bOut, *bIn...)
}
uf := in.FieldByName("XXX_unrecognized")
if !uf.IsValid() {
return
}
uin := uf.Bytes()
if len(uin) > 0 {
out.FieldByName("XXX_unrecognized").SetBytes(append([]byte(nil), uin...))
}
}
// mergeAny performs a merge between two values of the same type.
// viaPtr indicates whether the values were indirected through a pointer (implying proto2).
// prop is set if this is a struct field (it may be nil).
func mergeAny(out, in reflect.Value, viaPtr bool, prop *Properties) {
if in.Type() == protoMessageType {
if !in.IsNil() {
if out.IsNil() {
out.Set(reflect.ValueOf(Clone(in.Interface().(Message))))
} else {
Merge(out.Interface().(Message), in.Interface().(Message))
}
}
return
}
switch in.Kind() {
case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
reflect.String, reflect.Uint32, reflect.Uint64:
if !viaPtr && isProto3Zero(in) {
return
}
out.Set(in)
case reflect.Interface:
// Probably a oneof field; copy non-nil values.
if in.IsNil() {
return
}
// Allocate destination if it is not set, or set to a different type.
// Otherwise we will merge as normal.
if out.IsNil() || out.Elem().Type() != in.Elem().Type() {
out.Set(reflect.New(in.Elem().Elem().Type())) // interface -> *T -> T -> new(T)
}
mergeAny(out.Elem(), in.Elem(), false, nil)
case reflect.Map:
if in.Len() == 0 {
return
}
if out.IsNil() {
out.Set(reflect.MakeMap(in.Type()))
}
// For maps with value types of *T or []byte we need to deep copy each value.
elemKind := in.Type().Elem().Kind()
for _, key := range in.MapKeys() {
var val reflect.Value
switch elemKind {
case reflect.Ptr:
val = reflect.New(in.Type().Elem().Elem())
mergeAny(val, in.MapIndex(key), false, nil)
case reflect.Slice:
val = in.MapIndex(key)
val = reflect.ValueOf(append([]byte{}, val.Bytes()...))
default:
val = in.MapIndex(key)
}
out.SetMapIndex(key, val)
}
case reflect.Ptr:
if in.IsNil() {
return
}
if out.IsNil() {
out.Set(reflect.New(in.Elem().Type()))
}
mergeAny(out.Elem(), in.Elem(), true, nil)
case reflect.Slice:
if in.IsNil() {
return
}
if in.Type().Elem().Kind() == reflect.Uint8 {
// []byte is a scalar bytes field, not a repeated field.
// Edge case: if this is in a proto3 message, a zero length
// bytes field is considered the zero value, and should not
// be merged.
if prop != nil && prop.proto3 && in.Len() == 0 {
return
}
// Make a deep copy.
// Append to []byte{} instead of []byte(nil) so that we never end up
// with a nil result.
out.SetBytes(append([]byte{}, in.Bytes()...))
return
}
n := in.Len()
if out.IsNil() {
out.Set(reflect.MakeSlice(in.Type(), 0, n))
}
switch in.Type().Elem().Kind() {
case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
reflect.String, reflect.Uint32, reflect.Uint64:
out.Set(reflect.AppendSlice(out, in))
default:
for i := 0; i < n; i++ {
x := reflect.Indirect(reflect.New(in.Type().Elem()))
mergeAny(x, in.Index(i), false, nil)
out.Set(reflect.Append(out, x))
}
}
case reflect.Struct:
mergeStruct(out, in)
default:
// unknown type, so not a protocol buffer
log.Printf("proto: don't know how to copy %v", in)
}
}
func mergeExtension(out, in map[int32]Extension) {
for extNum, eIn := range in {
eOut := Extension{desc: eIn.desc}
if eIn.value != nil {
v := reflect.New(reflect.TypeOf(eIn.value)).Elem()
mergeAny(v, reflect.ValueOf(eIn.value), false, nil)
eOut.value = v.Interface()
}
if eIn.enc != nil {
eOut.enc = make([]byte, len(eIn.enc))
copy(eOut.enc, eIn.enc)
}
out[extNum] = eOut
}
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/clone_test.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"testing"
"QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto"
proto3pb "QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/proto3_proto"
pb "QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/testdata"
)
var cloneTestMessage = &pb.MyMessage{
Count: proto.Int32(42),
Name: proto.String("Dave"),
Pet: []string{"bunny", "kitty", "horsey"},
Inner: &pb.InnerMessage{
Host: proto.String("niles"),
Port: proto.Int32(9099),
Connected: proto.Bool(true),
},
Others: []*pb.OtherMessage{
{
Value: []byte("some bytes"),
},
},
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: proto.Int32(6),
},
RepBytes: [][]byte{[]byte("sham"), []byte("wow")},
}
func init() {
ext := &pb.Ext{
Data: proto.String("extension"),
}
if err := proto.SetExtension(cloneTestMessage, pb.E_Ext_More, ext); err != nil {
panic("SetExtension: " + err.Error())
}
}
func TestClone(t *testing.T) {
m := proto.Clone(cloneTestMessage).(*pb.MyMessage)
if !proto.Equal(m, cloneTestMessage) {
t.Errorf("Clone(%v) = %v", cloneTestMessage, m)
}
// Verify it was a deep copy.
*m.Inner.Port++
if proto.Equal(m, cloneTestMessage) {
t.Error("Mutating clone changed the original")
}
// Byte fields and repeated fields should be copied.
if &m.Pet[0] == &cloneTestMessage.Pet[0] {
t.Error("Pet: repeated field not copied")
}
if &m.Others[0] == &cloneTestMessage.Others[0] {
t.Error("Others: repeated field not copied")
}
if &m.Others[0].Value[0] == &cloneTestMessage.Others[0].Value[0] {
t.Error("Others[0].Value: bytes field not copied")
}
if &m.RepBytes[0] == &cloneTestMessage.RepBytes[0] {
t.Error("RepBytes: repeated field not copied")
}
if &m.RepBytes[0][0] == &cloneTestMessage.RepBytes[0][0] {
t.Error("RepBytes[0]: bytes field not copied")
}
}
func TestCloneNil(t *testing.T) {
var m *pb.MyMessage
if c := proto.Clone(m); !proto.Equal(m, c) {
t.Errorf("Clone(%v) = %v", m, c)
}
}
var mergeTests = []struct {
src, dst, want proto.Message
}{
{
src: &pb.MyMessage{
Count: proto.Int32(42),
},
dst: &pb.MyMessage{
Name: proto.String("Dave"),
},
want: &pb.MyMessage{
Count: proto.Int32(42),
Name: proto.String("Dave"),
},
},
{
src: &pb.MyMessage{
Inner: &pb.InnerMessage{
Host: proto.String("hey"),
Connected: proto.Bool(true),
},
Pet: []string{"horsey"},
Others: []*pb.OtherMessage{
{
Value: []byte("some bytes"),
},
},
},
dst: &pb.MyMessage{
Inner: &pb.InnerMessage{
Host: proto.String("niles"),
Port: proto.Int32(9099),
},
Pet: []string{"bunny", "kitty"},
Others: []*pb.OtherMessage{
{
Key: proto.Int64(31415926535),
},
{
// Explicitly test a src=nil field
Inner: nil,
},
},
},
want: &pb.MyMessage{
Inner: &pb.InnerMessage{
Host: proto.String("hey"),
Connected: proto.Bool(true),
Port: proto.Int32(9099),
},
Pet: []string{"bunny", "kitty", "horsey"},
Others: []*pb.OtherMessage{
{
Key: proto.Int64(31415926535),
},
{},
{
Value: []byte("some bytes"),
},
},
},
},
{
src: &pb.MyMessage{
RepBytes: [][]byte{[]byte("wow")},
},
dst: &pb.MyMessage{
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: proto.Int32(6),
},
RepBytes: [][]byte{[]byte("sham")},
},
want: &pb.MyMessage{
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: proto.Int32(6),
},
RepBytes: [][]byte{[]byte("sham"), []byte("wow")},
},
},
// Check that a scalar bytes field replaces rather than appends.
{
src: &pb.OtherMessage{Value: []byte("foo")},
dst: &pb.OtherMessage{Value: []byte("bar")},
want: &pb.OtherMessage{Value: []byte("foo")},
},
{
src: &pb.MessageWithMap{
NameMapping: map[int32]string{6: "Nigel"},
MsgMapping: map[int64]*pb.FloatingPoint{
0x4001: {F: proto.Float64(2.0)},
},
ByteMapping: map[bool][]byte{true: []byte("wowsa")},
},
dst: &pb.MessageWithMap{
NameMapping: map[int32]string{
6: "Bruce", // should be overwritten
7: "Andrew",
},
},
want: &pb.MessageWithMap{
NameMapping: map[int32]string{
6: "Nigel",
7: "Andrew",
},
MsgMapping: map[int64]*pb.FloatingPoint{
0x4001: {F: proto.Float64(2.0)},
},
ByteMapping: map[bool][]byte{true: []byte("wowsa")},
},
},
// proto3 shouldn't merge zero values,
// in the same way that proto2 shouldn't merge nils.
{
src: &proto3pb.Message{
Name: "Aaron",
Data: []byte(""), // zero value, but not nil
},
dst: &proto3pb.Message{
HeightInCm: 176,
Data: []byte("texas!"),
},
want: &proto3pb.Message{
Name: "Aaron",
HeightInCm: 176,
Data: []byte("texas!"),
},
},
// Oneof fields should merge by assignment.
{
src: &pb.Communique{
Union: &pb.Communique_Number{Number: 41},
},
dst: &pb.Communique{
Union: &pb.Communique_Name{Name: "Bobby Tables"},
},
want: &pb.Communique{
Union: &pb.Communique_Number{Number: 41},
},
},
// Oneof nil is the same as not set.
{
src: &pb.Communique{},
dst: &pb.Communique{
Union: &pb.Communique_Name{Name: "Bobby Tables"},
},
want: &pb.Communique{
Union: &pb.Communique_Name{Name: "Bobby Tables"},
},
},
}
func TestMerge(t *testing.T) {
for _, m := range mergeTests {
got := proto.Clone(m.dst)
proto.Merge(got, m.src)
if !proto.Equal(got, m.want) {
t.Errorf("Merge(%v, %v)\n got %v\nwant %v\n", m.dst, m.src, got, m.want)
}
}
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/decode.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Routines for decoding protocol buffer data to construct in-memory representations.
*/
import (
"errors"
"fmt"
"io"
"os"
"reflect"
)
// errOverflow is returned when an integer is too large to be represented.
var errOverflow = errors.New("proto: integer overflow")
// ErrInternalBadWireType is returned by generated code when an incorrect
// wire type is encountered. It does not get returned to user code.
var ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for oneof")
// The fundamental decoders that interpret bytes on the wire.
// Those that take integer types all return uint64 and are
// therefore of type valueDecoder.
// DecodeVarint reads a varint-encoded integer from the slice.
// It returns the integer and the number of bytes consumed, or
// zero if there is not enough.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
func DecodeVarint(buf []byte) (x uint64, n int) {
// x, n already 0
for shift := uint(0); shift < 64; shift += 7 {
if n >= len(buf) {
return 0, 0
}
b := uint64(buf[n])
n++
x |= (b & 0x7F) << shift
if (b & 0x80) == 0 {
return x, n
}
}
// The number is too large to represent in a 64-bit value.
return 0, 0
}
// DecodeVarint reads a varint-encoded integer from the Buffer.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
func (p *Buffer) DecodeVarint() (x uint64, err error) {
// x, err already 0
i := p.index
l := len(p.buf)
for shift := uint(0); shift < 64; shift += 7 {
if i >= l {
err = io.ErrUnexpectedEOF
return
}
b := p.buf[i]
i++
x |= (uint64(b) & 0x7F) << shift
if b < 0x80 {
p.index = i
return
}
}
// The number is too large to represent in a 64-bit value.
err = errOverflow
return
}
// DecodeFixed64 reads a 64-bit integer from the Buffer.
// This is the format for the
// fixed64, sfixed64, and double protocol buffer types.
func (p *Buffer) DecodeFixed64() (x uint64, err error) {
// x, err already 0
i := p.index + 8
if i < 0 || i > len(p.buf) {
err = io.ErrUnexpectedEOF
return
}
p.index = i
x = uint64(p.buf[i-8])
x |= uint64(p.buf[i-7]) << 8
x |= uint64(p.buf[i-6]) << 16
x |= uint64(p.buf[i-5]) << 24
x |= uint64(p.buf[i-4]) << 32
x |= uint64(p.buf[i-3]) << 40
x |= uint64(p.buf[i-2]) << 48
x |= uint64(p.buf[i-1]) << 56
return
}
// DecodeFixed32 reads a 32-bit integer from the Buffer.
// This is the format for the
// fixed32, sfixed32, and float protocol buffer types.
func (p *Buffer) DecodeFixed32() (x uint64, err error) {
// x, err already 0
i := p.index + 4
if i < 0 || i > len(p.buf) {
err = io.ErrUnexpectedEOF
return
}
p.index = i
x = uint64(p.buf[i-4])
x |= uint64(p.buf[i-3]) << 8
x |= uint64(p.buf[i-2]) << 16
x |= uint64(p.buf[i-1]) << 24
return
}
// DecodeZigzag64 reads a zigzag-encoded 64-bit integer
// from the Buffer.
// This is the format used for the sint64 protocol buffer type.
func (p *Buffer) DecodeZigzag64() (x uint64, err error) {
x, err = p.DecodeVarint()
if err != nil {
return
}
x = (x >> 1) ^ uint64((int64(x&1)<<63)>>63)
return
}
// DecodeZigzag32 reads a zigzag-encoded 32-bit integer
// from the Buffer.
// This is the format used for the sint32 protocol buffer type.
func (p *Buffer) DecodeZigzag32() (x uint64, err error) {
x, err = p.DecodeVarint()
if err != nil {
return
}
x = uint64((uint32(x) >> 1) ^ uint32((int32(x&1)<<31)>>31))
return
}
// These are not ValueDecoders: they produce an array of bytes or a string.
// bytes, embedded messages
// DecodeRawBytes reads a count-delimited byte buffer from the Buffer.
// This is the format used for the bytes protocol buffer
// type and for embedded messages.
func (p *Buffer) DecodeRawBytes(alloc bool) (buf []byte, err error) {
n, err := p.DecodeVarint()
if err != nil {
return nil, err
}
nb := int(n)
if nb < 0 {
return nil, fmt.Errorf("proto: bad byte length %d", nb)
}
end := p.index + nb
if end < p.index || end > len(p.buf) {
return nil, io.ErrUnexpectedEOF
}
if !alloc {
// todo: check if can get more uses of alloc=false
buf = p.buf[p.index:end]
p.index += nb
return
}
buf = make([]byte, nb)
copy(buf, p.buf[p.index:])
p.index += nb
return
}
// DecodeStringBytes reads an encoded string from the Buffer.
// This is the format used for the proto2 string type.
func (p *Buffer) DecodeStringBytes() (s string, err error) {
buf, err := p.DecodeRawBytes(false)
if err != nil {
return
}
return string(buf), nil
}
// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
// If the protocol buffer has extensions, and the field matches, add it as an extension.
// Otherwise, if the XXX_unrecognized field exists, append the skipped data there.
func (o *Buffer) skipAndSave(t reflect.Type, tag, wire int, base structPointer, unrecField field) error {
oi := o.index
err := o.skip(t, tag, wire)
if err != nil {
return err
}
if !unrecField.IsValid() {
return nil
}
ptr := structPointer_Bytes(base, unrecField)
// Add the skipped field to struct field
obuf := o.buf
o.buf = *ptr
o.EncodeVarint(uint64(tag<<3 | wire))
*ptr = append(o.buf, obuf[oi:o.index]...)
o.buf = obuf
return nil
}
// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
func (o *Buffer) skip(t reflect.Type, tag, wire int) error {
var u uint64
var err error
switch wire {
case WireVarint:
_, err = o.DecodeVarint()
case WireFixed64:
_, err = o.DecodeFixed64()
case WireBytes:
_, err = o.DecodeRawBytes(false)
case WireFixed32:
_, err = o.DecodeFixed32()
case WireStartGroup:
for {
u, err = o.DecodeVarint()
if err != nil {
break
}
fwire := int(u & 0x7)
if fwire == WireEndGroup {
break
}
ftag := int(u >> 3)
err = o.skip(t, ftag, fwire)
if err != nil {
break
}
}
default:
err = fmt.Errorf("proto: can't skip unknown wire type %d for %s", wire, t)
}
return err
}
// Unmarshaler is the interface representing objects that can
// unmarshal themselves. The method should reset the receiver before
// decoding starts. The argument points to data that may be
// overwritten, so implementations should not keep references to the
// buffer.
type Unmarshaler interface {
Unmarshal([]byte) error
}
// Unmarshal parses the protocol buffer representation in buf and places the
// decoded result in pb. If the struct underlying pb does not match
// the data in buf, the results can be unpredictable.
//
// Unmarshal resets pb before starting to unmarshal, so any
// existing data in pb is always removed. Use UnmarshalMerge
// to preserve and append to existing data.
func Unmarshal(buf []byte, pb Message) error {
pb.Reset()
return UnmarshalMerge(buf, pb)
}
// UnmarshalMerge parses the protocol buffer representation in buf and
// writes the decoded result to pb. If the struct underlying pb does not match
// the data in buf, the results can be unpredictable.
//
// UnmarshalMerge merges into existing data in pb.
// Most code should use Unmarshal instead.
func UnmarshalMerge(buf []byte, pb Message) error {
// If the object can unmarshal itself, let it.
if u, ok := pb.(Unmarshaler); ok {
return u.Unmarshal(buf)
}
return NewBuffer(buf).Unmarshal(pb)
}
// DecodeMessage reads a count-delimited message from the Buffer.
func (p *Buffer) DecodeMessage(pb Message) error {
enc, err := p.DecodeRawBytes(false)
if err != nil {
return err
}
return NewBuffer(enc).Unmarshal(pb)
}
// DecodeGroup reads a tag-delimited group from the Buffer.
func (p *Buffer) DecodeGroup(pb Message) error {
typ, base, err := getbase(pb)
if err != nil {
return err
}
return p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), true, base)
}
// Unmarshal parses the protocol buffer representation in the
// Buffer and places the decoded result in pb. If the struct
// underlying pb does not match the data in the buffer, the results can be
// unpredictable.
func (p *Buffer) Unmarshal(pb Message) error {
// If the object can unmarshal itself, let it.
if u, ok := pb.(Unmarshaler); ok {
err := u.Unmarshal(p.buf[p.index:])
p.index = len(p.buf)
return err
}
typ, base, err := getbase(pb)
if err != nil {
return err
}
err = p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), false, base)
if collectStats {
stats.Decode++
}
return err
}
// unmarshalType does the work of unmarshaling a structure.
func (o *Buffer) unmarshalType(st reflect.Type, prop *StructProperties, is_group bool, base structPointer) error {
var state errorState
required, reqFields := prop.reqCount, uint64(0)
var err error
for err == nil && o.index < len(o.buf) {
oi := o.index
var u uint64
u, err = o.DecodeVarint()
if err != nil {
break
}
wire := int(u & 0x7)
if wire == WireEndGroup {
if is_group {
return nil // input is satisfied
}
return fmt.Errorf("proto: %s: wiretype end group for non-group", st)
}
tag := int(u >> 3)
if tag <= 0 {
return fmt.Errorf("proto: %s: illegal tag %d (wire type %d)", st, tag, wire)
}
fieldnum, ok := prop.decoderTags.get(tag)
if !ok {
// Maybe it's an extension?
if prop.extendable {
if e := structPointer_Interface(base, st).(extendableProto); isExtensionField(e, int32(tag)) {
if err = o.skip(st, tag, wire); err == nil {
if ee, eok := e.(extensionsMap); eok {
ext := ee.ExtensionMap()[int32(tag)] // may be missing
ext.enc = append(ext.enc, o.buf[oi:o.index]...)
ee.ExtensionMap()[int32(tag)] = ext
} else if ee, eok := e.(extensionsBytes); eok {
ext := ee.GetExtensions()
*ext = append(*ext, o.buf[oi:o.index]...)
}
}
continue
}
}
// Maybe it's a oneof?
if prop.oneofUnmarshaler != nil {
m := structPointer_Interface(base, st).(Message)
// First return value indicates whether tag is a oneof field.
ok, err = prop.oneofUnmarshaler(m, tag, wire, o)
if err == ErrInternalBadWireType {
// Map the error to something more descriptive.
// Do the formatting here to save generated code space.
err = fmt.Errorf("bad wiretype for oneof field in %T", m)
}
if ok {
continue
}
}
err = o.skipAndSave(st, tag, wire, base, prop.unrecField)
continue
}
p := prop.Prop[fieldnum]
if p.dec == nil {
fmt.Fprintf(os.Stderr, "proto: no protobuf decoder for %s.%s\n", st, st.Field(fieldnum).Name)
continue
}
dec := p.dec
if wire != WireStartGroup && wire != p.WireType {
if wire == WireBytes && p.packedDec != nil {
// a packable field
dec = p.packedDec
} else {
err = fmt.Errorf("proto: bad wiretype for field %s.%s: got wiretype %d, want %d", st, st.Field(fieldnum).Name, wire, p.WireType)
continue
}
}
decErr := dec(o, p, base)
if decErr != nil && !state.shouldContinue(decErr, p) {
err = decErr
}
if err == nil && p.Required {
// Successfully decoded a required field.
if tag <= 64 {
// use bitmap for fields 1-64 to catch field reuse.
var mask uint64 = 1 << uint64(tag-1)
if reqFields&mask == 0 {
// new required field
reqFields |= mask
required--
}
} else {
// This is imprecise. It can be fooled by a required field
// with a tag > 64 that is encoded twice; that's very rare.
// A fully correct implementation would require allocating
// a data structure, which we would like to avoid.
required--
}
}
}
if err == nil {
if is_group {
return io.ErrUnexpectedEOF
}
if state.err != nil {
return state.err
}
if required > 0 {
// Not enough information to determine the exact field. If we use extra
// CPU, we could determine the field only if the missing required field
// has a tag <= 64 and we check reqFields.
return &RequiredNotSetError{"{Unknown}"}
}
}
return err
}
// Individual type decoders
// For each,
// u is the decoded value,
// v is a pointer to the field (pointer) in the struct
// Sizes of the pools to allocate inside the Buffer.
// The goal is modest amortization and allocation
// on at least 16-byte boundaries.
const (
boolPoolSize = 16
uint32PoolSize = 8
uint64PoolSize = 4
)
// Decode a bool.
func (o *Buffer) dec_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
if len(o.bools) == 0 {
o.bools = make([]bool, boolPoolSize)
}
o.bools[0] = u != 0
*structPointer_Bool(base, p.field) = &o.bools[0]
o.bools = o.bools[1:]
return nil
}
func (o *Buffer) dec_proto3_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
*structPointer_BoolVal(base, p.field) = u != 0
return nil
}
// Decode an int32.
func (o *Buffer) dec_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word32_Set(structPointer_Word32(base, p.field), o, uint32(u))
return nil
}
func (o *Buffer) dec_proto3_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word32Val_Set(structPointer_Word32Val(base, p.field), uint32(u))
return nil
}
// Decode an int64.
func (o *Buffer) dec_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word64_Set(structPointer_Word64(base, p.field), o, u)
return nil
}
func (o *Buffer) dec_proto3_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word64Val_Set(structPointer_Word64Val(base, p.field), o, u)
return nil
}
// Decode a string.
func (o *Buffer) dec_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
*structPointer_String(base, p.field) = &s
return nil
}
func (o *Buffer) dec_proto3_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
*structPointer_StringVal(base, p.field) = s
return nil
}
// Decode a slice of bytes ([]byte).
func (o *Buffer) dec_slice_byte(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
*structPointer_Bytes(base, p.field) = b
return nil
}
// Decode a slice of bools ([]bool).
func (o *Buffer) dec_slice_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
v := structPointer_BoolSlice(base, p.field)
*v = append(*v, u != 0)
return nil
}
// Decode a slice of bools ([]bool) in packed format.
func (o *Buffer) dec_slice_packed_bool(p *Properties, base structPointer) error {
v := structPointer_BoolSlice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded bools
fin := o.index + nb
if fin < o.index {
return errOverflow
}
y := *v
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
y = append(y, u != 0)
}
*v = y
return nil
}
// Decode a slice of int32s ([]int32).
func (o *Buffer) dec_slice_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
structPointer_Word32Slice(base, p.field).Append(uint32(u))
return nil
}
// Decode a slice of int32s ([]int32) in packed format.
func (o *Buffer) dec_slice_packed_int32(p *Properties, base structPointer) error {
v := structPointer_Word32Slice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded int32s
fin := o.index + nb
if fin < o.index {
return errOverflow
}
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
v.Append(uint32(u))
}
return nil
}
// Decode a slice of int64s ([]int64).
func (o *Buffer) dec_slice_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
structPointer_Word64Slice(base, p.field).Append(u)
return nil
}
// Decode a slice of int64s ([]int64) in packed format.
func (o *Buffer) dec_slice_packed_int64(p *Properties, base structPointer) error {
v := structPointer_Word64Slice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded int64s
fin := o.index + nb
if fin < o.index {
return errOverflow
}
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
v.Append(u)
}
return nil
}
// Decode a slice of strings ([]string).
func (o *Buffer) dec_slice_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
v := structPointer_StringSlice(base, p.field)
*v = append(*v, s)
return nil
}
// Decode a slice of slice of bytes ([][]byte).
func (o *Buffer) dec_slice_slice_byte(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
v := structPointer_BytesSlice(base, p.field)
*v = append(*v, b)
return nil
}
// Decode a map field.
func (o *Buffer) dec_new_map(p *Properties, base structPointer) error {
raw, err := o.DecodeRawBytes(false)
if err != nil {
return err
}
oi := o.index // index at the end of this map entry
o.index -= len(raw) // move buffer back to start of map entry
mptr := structPointer_NewAt(base, p.field, p.mtype) // *map[K]V
if mptr.Elem().IsNil() {
mptr.Elem().Set(reflect.MakeMap(mptr.Type().Elem()))
}
v := mptr.Elem() // map[K]V
// Prepare addressable doubly-indirect placeholders for the key and value types.
// See enc_new_map for why.
keyptr := reflect.New(reflect.PtrTo(p.mtype.Key())).Elem() // addressable *K
keybase := toStructPointer(keyptr.Addr()) // **K
var valbase structPointer
var valptr reflect.Value
switch p.mtype.Elem().Kind() {
case reflect.Slice:
// []byte
var dummy []byte
valptr = reflect.ValueOf(&dummy) // *[]byte
valbase = toStructPointer(valptr) // *[]byte
case reflect.Ptr:
// message; valptr is **Msg; need to allocate the intermediate pointer
valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
valptr.Set(reflect.New(valptr.Type().Elem()))
valbase = toStructPointer(valptr)
default:
// everything else
valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
valbase = toStructPointer(valptr.Addr()) // **V
}
// Decode.
// This parses a restricted wire format, namely the encoding of a message
// with two fields. See enc_new_map for the format.
for o.index < oi {
// tagcode for key and value properties are always a single byte
// because they have tags 1 and 2.
tagcode := o.buf[o.index]
o.index++
switch tagcode {
case p.mkeyprop.tagcode[0]:
if err := p.mkeyprop.dec(o, p.mkeyprop, keybase); err != nil {
return err
}
case p.mvalprop.tagcode[0]:
if err := p.mvalprop.dec(o, p.mvalprop, valbase); err != nil {
return err
}
default:
// TODO: Should we silently skip this instead?
return fmt.Errorf("proto: bad map data tag %d", raw[0])
}
}
keyelem, valelem := keyptr.Elem(), valptr.Elem()
if !keyelem.IsValid() || !valelem.IsValid() {
// We did not decode the key or the value in the map entry.
// Either way, it's an invalid map entry.
return fmt.Errorf("proto: bad map data: missing key/val")
}
v.SetMapIndex(keyelem, valelem)
return nil
}
// Decode a group.
func (o *Buffer) dec_struct_group(p *Properties, base structPointer) error {
bas := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(bas) {
// allocate new nested message
bas = toStructPointer(reflect.New(p.stype))
structPointer_SetStructPointer(base, p.field, bas)
}
return o.unmarshalType(p.stype, p.sprop, true, bas)
}
// Decode an embedded message.
func (o *Buffer) dec_struct_message(p *Properties, base structPointer) (err error) {
raw, e := o.DecodeRawBytes(false)
if e != nil {
return e
}
bas := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(bas) {
// allocate new nested message
bas = toStructPointer(reflect.New(p.stype))
structPointer_SetStructPointer(base, p.field, bas)
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
iv := structPointer_Interface(bas, p.stype)
return iv.(Unmarshaler).Unmarshal(raw)
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
err = o.unmarshalType(p.stype, p.sprop, false, bas)
o.buf = obuf
o.index = oi
return err
}
// Decode a slice of embedded messages.
func (o *Buffer) dec_slice_struct_message(p *Properties, base structPointer) error {
return o.dec_slice_struct(p, false, base)
}
// Decode a slice of embedded groups.
func (o *Buffer) dec_slice_struct_group(p *Properties, base structPointer) error {
return o.dec_slice_struct(p, true, base)
}
// Decode a slice of structs ([]*struct).
func (o *Buffer) dec_slice_struct(p *Properties, is_group bool, base structPointer) error {
v := reflect.New(p.stype)
bas := toStructPointer(v)
structPointer_StructPointerSlice(base, p.field).Append(bas)
if is_group {
err := o.unmarshalType(p.stype, p.sprop, is_group, bas)
return err
}
raw, err := o.DecodeRawBytes(false)
if err != nil {
return err
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
iv := v.Interface()
return iv.(Unmarshaler).Unmarshal(raw)
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
err = o.unmarshalType(p.stype, p.sprop, is_group, bas)
o.buf = obuf
o.index = oi
return err
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/decode_gogo.go 0 → 100644
View file @ 8f79df77
// Copyright (c) 2013, Vastech SA (PTY) LTD. All rights reserved.
// http://github.com/gogo/protobuf/gogoproto
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
import (
"reflect"
)
// Decode a reference to a struct pointer.
func (o *Buffer) dec_ref_struct_message(p *Properties, base structPointer) (err error) {
raw, e := o.DecodeRawBytes(false)
if e != nil {
return e
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
panic("not supported, since this is a pointer receiver")
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
bas := structPointer_FieldPointer(base, p.field)
err = o.unmarshalType(p.stype, p.sprop, false, bas)
o.buf = obuf
o.index = oi
return err
}
// Decode a slice of references to struct pointers ([]struct).
func (o *Buffer) dec_slice_ref_struct(p *Properties, is_group bool, base structPointer) error {
newBas := appendStructPointer(base, p.field, p.sstype)
if is_group {
panic("not supported, maybe in future, if requested.")
}
raw, err := o.DecodeRawBytes(false)
if err != nil {
return err
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
panic("not supported, since this is not a pointer receiver.")
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
err = o.unmarshalType(p.stype, p.sprop, is_group, newBas)
o.buf = obuf
o.index = oi
return err
}
// Decode a slice of references to struct pointers.
func (o *Buffer) dec_slice_ref_struct_message(p *Properties, base structPointer) error {
return o.dec_slice_ref_struct(p, false, base)
}
func setPtrCustomType(base structPointer, f field, v interface{}) {
if v == nil {
return
}
structPointer_SetStructPointer(base, f, structPointer(reflect.ValueOf(v).Pointer()))
}
func setCustomType(base structPointer, f field, value interface{}) {
if value == nil {
return
}
v := reflect.ValueOf(value).Elem()
t := reflect.TypeOf(value).Elem()
kind := t.Kind()
switch kind {
case reflect.Slice:
slice := reflect.MakeSlice(t, v.Len(), v.Cap())
reflect.Copy(slice, v)
oldHeader := structPointer_GetSliceHeader(base, f)
oldHeader.Data = slice.Pointer()
oldHeader.Len = v.Len()
oldHeader.Cap = v.Cap()
default:
l := 1
size := reflect.TypeOf(value).Elem().Size()
if kind == reflect.Array {
l = reflect.TypeOf(value).Elem().Len()
size = reflect.TypeOf(value).Size()
}
total := int(size) * l
structPointer_Copy(toStructPointer(reflect.ValueOf(value)), structPointer_Add(base, f), total)
}
}
func (o *Buffer) dec_custom_bytes(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
i := reflect.New(p.ctype.Elem()).Interface()
custom := (i).(Unmarshaler)
if err := custom.Unmarshal(b); err != nil {
return err
}
setPtrCustomType(base, p.field, custom)
return nil
}
func (o *Buffer) dec_custom_ref_bytes(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
i := reflect.New(p.ctype).Interface()
custom := (i).(Unmarshaler)
if err := custom.Unmarshal(b); err != nil {
return err
}
if custom != nil {
setCustomType(base, p.field, custom)
}
return nil
}
// Decode a slice of bytes ([]byte) into a slice of custom types.
func (o *Buffer) dec_custom_slice_bytes(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
i := reflect.New(p.ctype.Elem()).Interface()
custom := (i).(Unmarshaler)
if err := custom.Unmarshal(b); err != nil {
return err
}
newBas := appendStructPointer(base, p.field, p.ctype)
setCustomType(newBas, 0, custom)
return nil
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/encode.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Routines for encoding data into the wire format for protocol buffers.
*/
import (
"errors"
"fmt"
"reflect"
"sort"
)
// RequiredNotSetError is the error returned if Marshal is called with
// a protocol buffer struct whose required fields have not
// all been initialized. It is also the error returned if Unmarshal is
// called with an encoded protocol buffer that does not include all the
// required fields.
//
// When printed, RequiredNotSetError reports the first unset required field in a
// message. If the field cannot be precisely determined, it is reported as
// "{Unknown}".
type RequiredNotSetError struct {
field string
}
func (e *RequiredNotSetError) Error() string {
return fmt.Sprintf("proto: required field %q not set", e.field)
}
var (
// errRepeatedHasNil is the error returned if Marshal is called with
// a struct with a repeated field containing a nil element.
errRepeatedHasNil = errors.New("proto: repeated field has nil element")
// ErrNil is the error returned if Marshal is called with nil.
ErrNil = errors.New("proto: Marshal called with nil")
)
// The fundamental encoders that put bytes on the wire.
// Those that take integer types all accept uint64 and are
// therefore of type valueEncoder.
const maxVarintBytes = 10 // maximum length of a varint
// EncodeVarint returns the varint encoding of x.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
// Not used by the package itself, but helpful to clients
// wishing to use the same encoding.
func EncodeVarint(x uint64) []byte {
var buf [maxVarintBytes]byte
var n int
for n = 0; x > 127; n++ {
buf[n] = 0x80 | uint8(x&0x7F)
x >>= 7
}
buf[n] = uint8(x)
n++
return buf[0:n]
}
// EncodeVarint writes a varint-encoded integer to the Buffer.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
func (p *Buffer) EncodeVarint(x uint64) error {
for x >= 1<<7 {
p.buf = append(p.buf, uint8(x&0x7f|0x80))
x >>= 7
}
p.buf = append(p.buf, uint8(x))
return nil
}
func sizeVarint(x uint64) (n int) {
for {
n++
x >>= 7
if x == 0 {
break
}
}
return n
}
// EncodeFixed64 writes a 64-bit integer to the Buffer.
// This is the format for the
// fixed64, sfixed64, and double protocol buffer types.
func (p *Buffer) EncodeFixed64(x uint64) error {
p.buf = append(p.buf,
uint8(x),
uint8(x>>8),
uint8(x>>16),
uint8(x>>24),
uint8(x>>32),
uint8(x>>40),
uint8(x>>48),
uint8(x>>56))
return nil
}
func sizeFixed64(x uint64) int {
return 8
}
// EncodeFixed32 writes a 32-bit integer to the Buffer.
// This is the format for the
// fixed32, sfixed32, and float protocol buffer types.
func (p *Buffer) EncodeFixed32(x uint64) error {
p.buf = append(p.buf,
uint8(x),
uint8(x>>8),
uint8(x>>16),
uint8(x>>24))
return nil
}
func sizeFixed32(x uint64) int {
return 4
}
// EncodeZigzag64 writes a zigzag-encoded 64-bit integer
// to the Buffer.
// This is the format used for the sint64 protocol buffer type.
func (p *Buffer) EncodeZigzag64(x uint64) error {
// use signed number to get arithmetic right shift.
return p.EncodeVarint(uint64((x << 1) ^ uint64((int64(x) >> 63))))
}
func sizeZigzag64(x uint64) int {
return sizeVarint(uint64((x << 1) ^ uint64((int64(x) >> 63))))
}
// EncodeZigzag32 writes a zigzag-encoded 32-bit integer
// to the Buffer.
// This is the format used for the sint32 protocol buffer type.
func (p *Buffer) EncodeZigzag32(x uint64) error {
// use signed number to get arithmetic right shift.
return p.EncodeVarint(uint64((uint32(x) << 1) ^ uint32((int32(x) >> 31))))
}
func sizeZigzag32(x uint64) int {
return sizeVarint(uint64((uint32(x) << 1) ^ uint32((int32(x) >> 31))))
}
// EncodeRawBytes writes a count-delimited byte buffer to the Buffer.
// This is the format used for the bytes protocol buffer
// type and for embedded messages.
func (p *Buffer) EncodeRawBytes(b []byte) error {
p.EncodeVarint(uint64(len(b)))
p.buf = append(p.buf, b...)
return nil
}
func sizeRawBytes(b []byte) int {
return sizeVarint(uint64(len(b))) +
len(b)
}
// EncodeStringBytes writes an encoded string to the Buffer.
// This is the format used for the proto2 string type.
func (p *Buffer) EncodeStringBytes(s string) error {
p.EncodeVarint(uint64(len(s)))
p.buf = append(p.buf, s...)
return nil
}
func sizeStringBytes(s string) int {
return sizeVarint(uint64(len(s))) +
len(s)
}
// Marshaler is the interface representing objects that can marshal themselves.
type Marshaler interface {
Marshal() ([]byte, error)
}
// Marshal takes the protocol buffer
// and encodes it into the wire format, returning the data.
func Marshal(pb Message) ([]byte, error) {
// Can the object marshal itself?
if m, ok := pb.(Marshaler); ok {
return m.Marshal()
}
p := NewBuffer(nil)
err := p.Marshal(pb)
var state errorState
if err != nil && !state.shouldContinue(err, nil) {
return nil, err
}
if p.buf == nil && err == nil {
// Return a non-nil slice on success.
return []byte{}, nil
}
return p.buf, err
}
// EncodeMessage writes the protocol buffer to the Buffer,
// prefixed by a varint-encoded length.
func (p *Buffer) EncodeMessage(pb Message) error {
t, base, err := getbase(pb)
if structPointer_IsNil(base) {
return ErrNil
}
if err == nil {
var state errorState
err = p.enc_len_struct(GetProperties(t.Elem()), base, &state)
}
return err
}
// Marshal takes the protocol buffer
// and encodes it into the wire format, writing the result to the
// Buffer.
func (p *Buffer) Marshal(pb Message) error {
// Can the object marshal itself?
if m, ok := pb.(Marshaler); ok {
data, err := m.Marshal()
if err != nil {
return err
}
p.buf = append(p.buf, data...)
return nil
}
t, base, err := getbase(pb)
if structPointer_IsNil(base) {
return ErrNil
}
if err == nil {
err = p.enc_struct(GetProperties(t.Elem()), base)
}
if collectStats {
stats.Encode++
}
return err
}
// Size returns the encoded size of a protocol buffer.
func Size(pb Message) (n int) {
// Can the object marshal itself? If so, Size is slow.
// TODO: add Size to Marshaler, or add a Sizer interface.
if m, ok := pb.(Marshaler); ok {
b, _ := m.Marshal()
return len(b)
}
t, base, err := getbase(pb)
if structPointer_IsNil(base) {
return 0
}
if err == nil {
n = size_struct(GetProperties(t.Elem()), base)
}
if collectStats {
stats.Size++
}
return
}
// Individual type encoders.
// Encode a bool.
func (o *Buffer) enc_bool(p *Properties, base structPointer) error {
v := *structPointer_Bool(base, p.field)
if v == nil {
return ErrNil
}
x := 0
if *v {
x = 1
}
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, uint64(x))
return nil
}
func (o *Buffer) enc_proto3_bool(p *Properties, base structPointer) error {
v := *structPointer_BoolVal(base, p.field)
if !v {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, 1)
return nil
}
func size_bool(p *Properties, base structPointer) int {
v := *structPointer_Bool(base, p.field)
if v == nil {
return 0
}
return len(p.tagcode) + 1 // each bool takes exactly one byte
}
func size_proto3_bool(p *Properties, base structPointer) int {
v := *structPointer_BoolVal(base, p.field)
if !v && !p.oneof {
return 0
}
return len(p.tagcode) + 1 // each bool takes exactly one byte
}
// Encode an int32.
func (o *Buffer) enc_int32(p *Properties, base structPointer) error {
v := structPointer_Word32(base, p.field)
if word32_IsNil(v) {
return ErrNil
}
x := int32(word32_Get(v)) // permit sign extension to use full 64-bit range
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, uint64(x))
return nil
}
func (o *Buffer) enc_proto3_int32(p *Properties, base structPointer) error {
v := structPointer_Word32Val(base, p.field)
x := int32(word32Val_Get(v)) // permit sign extension to use full 64-bit range
if x == 0 {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, uint64(x))
return nil
}
func size_int32(p *Properties, base structPointer) (n int) {
v := structPointer_Word32(base, p.field)
if word32_IsNil(v) {
return 0
}
x := int32(word32_Get(v)) // permit sign extension to use full 64-bit range
n += len(p.tagcode)
n += p.valSize(uint64(x))
return
}
func size_proto3_int32(p *Properties, base structPointer) (n int) {
v := structPointer_Word32Val(base, p.field)
x := int32(word32Val_Get(v)) // permit sign extension to use full 64-bit range
if x == 0 && !p.oneof {
return 0
}
n += len(p.tagcode)
n += p.valSize(uint64(x))
return
}
// Encode a uint32.
// Exactly the same as int32, except for no sign extension.
func (o *Buffer) enc_uint32(p *Properties, base structPointer) error {
v := structPointer_Word32(base, p.field)
if word32_IsNil(v) {
return ErrNil
}
x := word32_Get(v)
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, uint64(x))
return nil
}
func (o *Buffer) enc_proto3_uint32(p *Properties, base structPointer) error {
v := structPointer_Word32Val(base, p.field)
x := word32Val_Get(v)
if x == 0 {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, uint64(x))
return nil
}
func size_uint32(p *Properties, base structPointer) (n int) {
v := structPointer_Word32(base, p.field)
if word32_IsNil(v) {
return 0
}
x := word32_Get(v)
n += len(p.tagcode)
n += p.valSize(uint64(x))
return
}
func size_proto3_uint32(p *Properties, base structPointer) (n int) {
v := structPointer_Word32Val(base, p.field)
x := word32Val_Get(v)
if x == 0 && !p.oneof {
return 0
}
n += len(p.tagcode)
n += p.valSize(uint64(x))
return
}
// Encode an int64.
func (o *Buffer) enc_int64(p *Properties, base structPointer) error {
v := structPointer_Word64(base, p.field)
if word64_IsNil(v) {
return ErrNil
}
x := word64_Get(v)
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, x)
return nil
}
func (o *Buffer) enc_proto3_int64(p *Properties, base structPointer) error {
v := structPointer_Word64Val(base, p.field)
x := word64Val_Get(v)
if x == 0 {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, x)
return nil
}
func size_int64(p *Properties, base structPointer) (n int) {
v := structPointer_Word64(base, p.field)
if word64_IsNil(v) {
return 0
}
x := word64_Get(v)
n += len(p.tagcode)
n += p.valSize(x)
return
}
func size_proto3_int64(p *Properties, base structPointer) (n int) {
v := structPointer_Word64Val(base, p.field)
x := word64Val_Get(v)
if x == 0 && !p.oneof {
return 0
}
n += len(p.tagcode)
n += p.valSize(x)
return
}
// Encode a string.
func (o *Buffer) enc_string(p *Properties, base structPointer) error {
v := *structPointer_String(base, p.field)
if v == nil {
return ErrNil
}
x := *v
o.buf = append(o.buf, p.tagcode...)
o.EncodeStringBytes(x)
return nil
}
func (o *Buffer) enc_proto3_string(p *Properties, base structPointer) error {
v := *structPointer_StringVal(base, p.field)
if v == "" {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeStringBytes(v)
return nil
}
func size_string(p *Properties, base structPointer) (n int) {
v := *structPointer_String(base, p.field)
if v == nil {
return 0
}
x := *v
n += len(p.tagcode)
n += sizeStringBytes(x)
return
}
func size_proto3_string(p *Properties, base structPointer) (n int) {
v := *structPointer_StringVal(base, p.field)
if v == "" && !p.oneof {
return 0
}
n += len(p.tagcode)
n += sizeStringBytes(v)
return
}
// All protocol buffer fields are nillable, but be careful.
func isNil(v reflect.Value) bool {
switch v.Kind() {
case reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
return v.IsNil()
}
return false
}
// Encode a message struct.
func (o *Buffer) enc_struct_message(p *Properties, base structPointer) error {
var state errorState
structp := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(structp) {
return ErrNil
}
// Can the object marshal itself?
if p.isMarshaler {
m := structPointer_Interface(structp, p.stype).(Marshaler)
data, err := m.Marshal()
if err != nil && !state.shouldContinue(err, nil) {
return err
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(data)
return state.err
}
o.buf = append(o.buf, p.tagcode...)
return o.enc_len_struct(p.sprop, structp, &state)
}
func size_struct_message(p *Properties, base structPointer) int {
structp := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(structp) {
return 0
}
// Can the object marshal itself?
if p.isMarshaler {
m := structPointer_Interface(structp, p.stype).(Marshaler)
data, _ := m.Marshal()
n0 := len(p.tagcode)
n1 := sizeRawBytes(data)
return n0 + n1
}
n0 := len(p.tagcode)
n1 := size_struct(p.sprop, structp)
n2 := sizeVarint(uint64(n1)) // size of encoded length
return n0 + n1 + n2
}
// Encode a group struct.
func (o *Buffer) enc_struct_group(p *Properties, base structPointer) error {
var state errorState
b := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(b) {
return ErrNil
}
o.EncodeVarint(uint64((p.Tag << 3) | WireStartGroup))
err := o.enc_struct(p.sprop, b)
if err != nil && !state.shouldContinue(err, nil) {
return err
}
o.EncodeVarint(uint64((p.Tag << 3) | WireEndGroup))
return state.err
}
func size_struct_group(p *Properties, base structPointer) (n int) {
b := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(b) {
return 0
}
n += sizeVarint(uint64((p.Tag << 3) | WireStartGroup))
n += size_struct(p.sprop, b)
n += sizeVarint(uint64((p.Tag << 3) | WireEndGroup))
return
}
// Encode a slice of bools ([]bool).
func (o *Buffer) enc_slice_bool(p *Properties, base structPointer) error {
s := *structPointer_BoolSlice(base, p.field)
l := len(s)
if l == 0 {
return ErrNil
}
for _, x := range s {
o.buf = append(o.buf, p.tagcode...)
v := uint64(0)
if x {
v = 1
}
p.valEnc(o, v)
}
return nil
}
func size_slice_bool(p *Properties, base structPointer) int {
s := *structPointer_BoolSlice(base, p.field)
l := len(s)
if l == 0 {
return 0
}
return l * (len(p.tagcode) + 1) // each bool takes exactly one byte
}
// Encode a slice of bools ([]bool) in packed format.
func (o *Buffer) enc_slice_packed_bool(p *Properties, base structPointer) error {
s := *structPointer_BoolSlice(base, p.field)
l := len(s)
if l == 0 {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeVarint(uint64(l)) // each bool takes exactly one byte
for _, x := range s {
v := uint64(0)
if x {
v = 1
}
p.valEnc(o, v)
}
return nil
}
func size_slice_packed_bool(p *Properties, base structPointer) (n int) {
s := *structPointer_BoolSlice(base, p.field)
l := len(s)
if l == 0 {
return 0
}
n += len(p.tagcode)
n += sizeVarint(uint64(l))
n += l // each bool takes exactly one byte
return
}
// Encode a slice of bytes ([]byte).
func (o *Buffer) enc_slice_byte(p *Properties, base structPointer) error {
s := *structPointer_Bytes(base, p.field)
if s == nil {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(s)
return nil
}
func (o *Buffer) enc_proto3_slice_byte(p *Properties, base structPointer) error {
s := *structPointer_Bytes(base, p.field)
if len(s) == 0 {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(s)
return nil
}
func size_slice_byte(p *Properties, base structPointer) (n int) {
s := *structPointer_Bytes(base, p.field)
if s == nil && !p.oneof {
return 0
}
n += len(p.tagcode)
n += sizeRawBytes(s)
return
}
func size_proto3_slice_byte(p *Properties, base structPointer) (n int) {
s := *structPointer_Bytes(base, p.field)
if len(s) == 0 && !p.oneof {
return 0
}
n += len(p.tagcode)
n += sizeRawBytes(s)
return
}
// Encode a slice of int32s ([]int32).
func (o *Buffer) enc_slice_int32(p *Properties, base structPointer) error {
s := structPointer_Word32Slice(base, p.field)
l := s.Len()
if l == 0 {
return ErrNil
}
for i := 0; i < l; i++ {
o.buf = append(o.buf, p.tagcode...)
x := int32(s.Index(i)) // permit sign extension to use full 64-bit range
p.valEnc(o, uint64(x))
}
return nil
}
func size_slice_int32(p *Properties, base structPointer) (n int) {
s := structPointer_Word32Slice(base, p.field)
l := s.Len()
if l == 0 {
return 0
}
for i := 0; i < l; i++ {
n += len(p.tagcode)
x := int32(s.Index(i)) // permit sign extension to use full 64-bit range
n += p.valSize(uint64(x))
}
return
}
// Encode a slice of int32s ([]int32) in packed format.
func (o *Buffer) enc_slice_packed_int32(p *Properties, base structPointer) error {
s := structPointer_Word32Slice(base, p.field)
l := s.Len()
if l == 0 {
return ErrNil
}
// TODO: Reuse a Buffer.
buf := NewBuffer(nil)
for i := 0; i < l; i++ {
x := int32(s.Index(i)) // permit sign extension to use full 64-bit range
p.valEnc(buf, uint64(x))
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeVarint(uint64(len(buf.buf)))
o.buf = append(o.buf, buf.buf...)
return nil
}
func size_slice_packed_int32(p *Properties, base structPointer) (n int) {
s := structPointer_Word32Slice(base, p.field)
l := s.Len()
if l == 0 {
return 0
}
var bufSize int
for i := 0; i < l; i++ {
x := int32(s.Index(i)) // permit sign extension to use full 64-bit range
bufSize += p.valSize(uint64(x))
}
n += len(p.tagcode)
n += sizeVarint(uint64(bufSize))
n += bufSize
return
}
// Encode a slice of uint32s ([]uint32).
// Exactly the same as int32, except for no sign extension.
func (o *Buffer) enc_slice_uint32(p *Properties, base structPointer) error {
s := structPointer_Word32Slice(base, p.field)
l := s.Len()
if l == 0 {
return ErrNil
}
for i := 0; i < l; i++ {
o.buf = append(o.buf, p.tagcode...)
x := s.Index(i)
p.valEnc(o, uint64(x))
}
return nil
}
func size_slice_uint32(p *Properties, base structPointer) (n int) {
s := structPointer_Word32Slice(base, p.field)
l := s.Len()
if l == 0 {
return 0
}
for i := 0; i < l; i++ {
n += len(p.tagcode)
x := s.Index(i)
n += p.valSize(uint64(x))
}
return
}
// Encode a slice of uint32s ([]uint32) in packed format.
// Exactly the same as int32, except for no sign extension.
func (o *Buffer) enc_slice_packed_uint32(p *Properties, base structPointer) error {
s := structPointer_Word32Slice(base, p.field)
l := s.Len()
if l == 0 {
return ErrNil
}
// TODO: Reuse a Buffer.
buf := NewBuffer(nil)
for i := 0; i < l; i++ {
p.valEnc(buf, uint64(s.Index(i)))
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeVarint(uint64(len(buf.buf)))
o.buf = append(o.buf, buf.buf...)
return nil
}
func size_slice_packed_uint32(p *Properties, base structPointer) (n int) {
s := structPointer_Word32Slice(base, p.field)
l := s.Len()
if l == 0 {
return 0
}
var bufSize int
for i := 0; i < l; i++ {
bufSize += p.valSize(uint64(s.Index(i)))
}
n += len(p.tagcode)
n += sizeVarint(uint64(bufSize))
n += bufSize
return
}
// Encode a slice of int64s ([]int64).
func (o *Buffer) enc_slice_int64(p *Properties, base structPointer) error {
s := structPointer_Word64Slice(base, p.field)
l := s.Len()
if l == 0 {
return ErrNil
}
for i := 0; i < l; i++ {
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, s.Index(i))
}
return nil
}
func size_slice_int64(p *Properties, base structPointer) (n int) {
s := structPointer_Word64Slice(base, p.field)
l := s.Len()
if l == 0 {
return 0
}
for i := 0; i < l; i++ {
n += len(p.tagcode)
n += p.valSize(s.Index(i))
}
return
}
// Encode a slice of int64s ([]int64) in packed format.
func (o *Buffer) enc_slice_packed_int64(p *Properties, base structPointer) error {
s := structPointer_Word64Slice(base, p.field)
l := s.Len()
if l == 0 {
return ErrNil
}
// TODO: Reuse a Buffer.
buf := NewBuffer(nil)
for i := 0; i < l; i++ {
p.valEnc(buf, s.Index(i))
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeVarint(uint64(len(buf.buf)))
o.buf = append(o.buf, buf.buf...)
return nil
}
func size_slice_packed_int64(p *Properties, base structPointer) (n int) {
s := structPointer_Word64Slice(base, p.field)
l := s.Len()
if l == 0 {
return 0
}
var bufSize int
for i := 0; i < l; i++ {
bufSize += p.valSize(s.Index(i))
}
n += len(p.tagcode)
n += sizeVarint(uint64(bufSize))
n += bufSize
return
}
// Encode a slice of slice of bytes ([][]byte).
func (o *Buffer) enc_slice_slice_byte(p *Properties, base structPointer) error {
ss := *structPointer_BytesSlice(base, p.field)
l := len(ss)
if l == 0 {
return ErrNil
}
for i := 0; i < l; i++ {
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(ss[i])
}
return nil
}
func size_slice_slice_byte(p *Properties, base structPointer) (n int) {
ss := *structPointer_BytesSlice(base, p.field)
l := len(ss)
if l == 0 {
return 0
}
n += l * len(p.tagcode)
for i := 0; i < l; i++ {
n += sizeRawBytes(ss[i])
}
return
}
// Encode a slice of strings ([]string).
func (o *Buffer) enc_slice_string(p *Properties, base structPointer) error {
ss := *structPointer_StringSlice(base, p.field)
l := len(ss)
for i := 0; i < l; i++ {
o.buf = append(o.buf, p.tagcode...)
o.EncodeStringBytes(ss[i])
}
return nil
}
func size_slice_string(p *Properties, base structPointer) (n int) {
ss := *structPointer_StringSlice(base, p.field)
l := len(ss)
n += l * len(p.tagcode)
for i := 0; i < l; i++ {
n += sizeStringBytes(ss[i])
}
return
}
// Encode a slice of message structs ([]*struct).
func (o *Buffer) enc_slice_struct_message(p *Properties, base structPointer) error {
var state errorState
s := structPointer_StructPointerSlice(base, p.field)
l := s.Len()
for i := 0; i < l; i++ {
structp := s.Index(i)
if structPointer_IsNil(structp) {
return errRepeatedHasNil
}
// Can the object marshal itself?
if p.isMarshaler {
m := structPointer_Interface(structp, p.stype).(Marshaler)
data, err := m.Marshal()
if err != nil && !state.shouldContinue(err, nil) {
return err
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(data)
continue
}
o.buf = append(o.buf, p.tagcode...)
err := o.enc_len_struct(p.sprop, structp, &state)
if err != nil && !state.shouldContinue(err, nil) {
if err == ErrNil {
return errRepeatedHasNil
}
return err
}
}
return state.err
}
func size_slice_struct_message(p *Properties, base structPointer) (n int) {
s := structPointer_StructPointerSlice(base, p.field)
l := s.Len()
n += l * len(p.tagcode)
for i := 0; i < l; i++ {
structp := s.Index(i)
if structPointer_IsNil(structp) {
return // return the size up to this point
}
// Can the object marshal itself?
if p.isMarshaler {
m := structPointer_Interface(structp, p.stype).(Marshaler)
data, _ := m.Marshal()
n += len(p.tagcode)
n += sizeRawBytes(data)
continue
}
n0 := size_struct(p.sprop, structp)
n1 := sizeVarint(uint64(n0)) // size of encoded length
n += n0 + n1
}
return
}
// Encode a slice of group structs ([]*struct).
func (o *Buffer) enc_slice_struct_group(p *Properties, base structPointer) error {
var state errorState
s := structPointer_StructPointerSlice(base, p.field)
l := s.Len()
for i := 0; i < l; i++ {
b := s.Index(i)
if structPointer_IsNil(b) {
return errRepeatedHasNil
}
o.EncodeVarint(uint64((p.Tag << 3) | WireStartGroup))
err := o.enc_struct(p.sprop, b)
if err != nil && !state.shouldContinue(err, nil) {
if err == ErrNil {
return errRepeatedHasNil
}
return err
}
o.EncodeVarint(uint64((p.Tag << 3) | WireEndGroup))
}
return state.err
}
func size_slice_struct_group(p *Properties, base structPointer) (n int) {
s := structPointer_StructPointerSlice(base, p.field)
l := s.Len()
n += l * sizeVarint(uint64((p.Tag<<3)|WireStartGroup))
n += l * sizeVarint(uint64((p.Tag<<3)|WireEndGroup))
for i := 0; i < l; i++ {
b := s.Index(i)
if structPointer_IsNil(b) {
return // return size up to this point
}
n += size_struct(p.sprop, b)
}
return
}
// Encode an extension map.
func (o *Buffer) enc_map(p *Properties, base structPointer) error {
v := *structPointer_ExtMap(base, p.field)
if err := encodeExtensionMap(v); err != nil {
return err
}
// Fast-path for common cases: zero or one extensions.
if len(v) <= 1 {
for _, e := range v {
o.buf = append(o.buf, e.enc...)
}
return nil
}
// Sort keys to provide a deterministic encoding.
keys := make([]int, 0, len(v))
for k := range v {
keys = append(keys, int(k))
}
sort.Ints(keys)
for _, k := range keys {
o.buf = append(o.buf, v[int32(k)].enc...)
}
return nil
}
func size_map(p *Properties, base structPointer) int {
v := *structPointer_ExtMap(base, p.field)
return sizeExtensionMap(v)
}
// Encode a map field.
func (o *Buffer) enc_new_map(p *Properties, base structPointer) error {
var state errorState // XXX: or do we need to plumb this through?
/*
A map defined as
map<key_type, value_type> map_field = N;
is encoded in the same way as
message MapFieldEntry {
key_type key = 1;
value_type value = 2;
}
repeated MapFieldEntry map_field = N;
*/
v := structPointer_NewAt(base, p.field, p.mtype).Elem() // map[K]V
if v.Len() == 0 {
return nil
}
keycopy, valcopy, keybase, valbase := mapEncodeScratch(p.mtype)
enc := func() error {
if err := p.mkeyprop.enc(o, p.mkeyprop, keybase); err != nil {
return err
}
if err := p.mvalprop.enc(o, p.mvalprop, valbase); err != nil {
return err
}
return nil
}
keys := v.MapKeys()
sort.Sort(mapKeys(keys))
for _, key := range keys {
val := v.MapIndex(key)
// The only illegal map entry values are nil message pointers.
if val.Kind() == reflect.Ptr && val.IsNil() {
return errors.New("proto: map has nil element")
}
keycopy.Set(key)
valcopy.Set(val)
o.buf = append(o.buf, p.tagcode...)
if err := o.enc_len_thing(enc, &state); err != nil {
return err
}
}
return nil
}
func size_new_map(p *Properties, base structPointer) int {
v := structPointer_NewAt(base, p.field, p.mtype).Elem() // map[K]V
keycopy, valcopy, keybase, valbase := mapEncodeScratch(p.mtype)
n := 0
for _, key := range v.MapKeys() {
val := v.MapIndex(key)
keycopy.Set(key)
valcopy.Set(val)
// Tag codes for key and val are the responsibility of the sub-sizer.
keysize := p.mkeyprop.size(p.mkeyprop, keybase)
valsize := p.mvalprop.size(p.mvalprop, valbase)
entry := keysize + valsize
// Add on tag code and length of map entry itself.
n += len(p.tagcode) + sizeVarint(uint64(entry)) + entry
}
return n
}
// mapEncodeScratch returns a new reflect.Value matching the map's value type,
// and a structPointer suitable for passing to an encoder or sizer.
func mapEncodeScratch(mapType reflect.Type) (keycopy, valcopy reflect.Value, keybase, valbase structPointer) {
// Prepare addressable doubly-indirect placeholders for the key and value types.
// This is needed because the element-type encoders expect **T, but the map iteration produces T.
keycopy = reflect.New(mapType.Key()).Elem() // addressable K
keyptr := reflect.New(reflect.PtrTo(keycopy.Type())).Elem() // addressable *K
keyptr.Set(keycopy.Addr()) //
keybase = toStructPointer(keyptr.Addr()) // **K
// Value types are more varied and require special handling.
switch mapType.Elem().Kind() {
case reflect.Slice:
// []byte
var dummy []byte
valcopy = reflect.ValueOf(&dummy).Elem() // addressable []byte
valbase = toStructPointer(valcopy.Addr())
case reflect.Ptr:
// message; the generated field type is map[K]*Msg (so V is *Msg),
// so we only need one level of indirection.
valcopy = reflect.New(mapType.Elem()).Elem() // addressable V
valbase = toStructPointer(valcopy.Addr())
default:
// everything else
valcopy = reflect.New(mapType.Elem()).Elem() // addressable V
valptr := reflect.New(reflect.PtrTo(valcopy.Type())).Elem() // addressable *V
valptr.Set(valcopy.Addr()) //
valbase = toStructPointer(valptr.Addr()) // **V
}
return
}
// Encode a struct.
func (o *Buffer) enc_struct(prop *StructProperties, base structPointer) error {
var state errorState
// Encode fields in tag order so that decoders may use optimizations
// that depend on the ordering.
// https://developers.google.com/protocol-buffers/docs/encoding#order
for _, i := range prop.order {
p := prop.Prop[i]
if p.enc != nil {
err := p.enc(o, p, base)
if err != nil {
if err == ErrNil {
if p.Required && state.err == nil {
state.err = &RequiredNotSetError{p.Name}
}
} else if err == errRepeatedHasNil {
// Give more context to nil values in repeated fields.
return errors.New("repeated field " + p.OrigName + " has nil element")
} else if !state.shouldContinue(err, p) {
return err
}
}
}
}
// Do oneof fields.
if prop.oneofMarshaler != nil {
m := structPointer_Interface(base, prop.stype).(Message)
if err := prop.oneofMarshaler(m, o); err != nil {
return err
}
}
// Add unrecognized fields at the end.
if prop.unrecField.IsValid() {
v := *structPointer_Bytes(base, prop.unrecField)
if len(v) > 0 {
o.buf = append(o.buf, v...)
}
}
return state.err
}
func size_struct(prop *StructProperties, base structPointer) (n int) {
for _, i := range prop.order {
p := prop.Prop[i]
if p.size != nil {
n += p.size(p, base)
}
}
// Add unrecognized fields at the end.
if prop.unrecField.IsValid() {
v := *structPointer_Bytes(base, prop.unrecField)
n += len(v)
}
// Factor in any oneof fields.
// TODO: This could be faster and use less reflection.
if prop.oneofMarshaler != nil {
sv := reflect.ValueOf(structPointer_Interface(base, prop.stype)).Elem()
for i := 0; i < prop.stype.NumField(); i++ {
fv := sv.Field(i)
if fv.Kind() != reflect.Interface || fv.IsNil() {
continue
}
if prop.stype.Field(i).Tag.Get("protobuf_oneof") == "" {
continue
}
spv := fv.Elem() // interface -> *T
sv := spv.Elem() // *T -> T
sf := sv.Type().Field(0) // StructField inside T
var prop Properties
prop.Init(sf.Type, "whatever", sf.Tag.Get("protobuf"), &sf)
n += prop.size(&prop, toStructPointer(spv))
}
}
return
}
var zeroes [20]byte // longer than any conceivable sizeVarint
// Encode a struct, preceded by its encoded length (as a varint).
func (o *Buffer) enc_len_struct(prop *StructProperties, base structPointer, state *errorState) error {
return o.enc_len_thing(func() error { return o.enc_struct(prop, base) }, state)
}
// Encode something, preceded by its encoded length (as a varint).
func (o *Buffer) enc_len_thing(enc func() error, state *errorState) error {
iLen := len(o.buf)
o.buf = append(o.buf, 0, 0, 0, 0) // reserve four bytes for length
iMsg := len(o.buf)
err := enc()
if err != nil && !state.shouldContinue(err, nil) {
return err
}
lMsg := len(o.buf) - iMsg
lLen := sizeVarint(uint64(lMsg))
switch x := lLen - (iMsg - iLen); {
case x > 0: // actual length is x bytes larger than the space we reserved
// Move msg x bytes right.
o.buf = append(o.buf, zeroes[:x]...)
copy(o.buf[iMsg+x:], o.buf[iMsg:iMsg+lMsg])
case x < 0: // actual length is x bytes smaller than the space we reserved
// Move msg x bytes left.
copy(o.buf[iMsg+x:], o.buf[iMsg:iMsg+lMsg])
o.buf = o.buf[:len(o.buf)+x] // x is negative
}
// Encode the length in the reserved space.
o.buf = o.buf[:iLen]
o.EncodeVarint(uint64(lMsg))
o.buf = o.buf[:len(o.buf)+lMsg]
return state.err
}
// errorState maintains the first error that occurs and updates that error
// with additional context.
type errorState struct {
err error
}
// shouldContinue reports whether encoding should continue upon encountering the
// given error. If the error is RequiredNotSetError, shouldContinue returns true
// and, if this is the first appearance of that error, remembers it for future
// reporting.
//
// If prop is not nil, it may update any error with additional context about the
// field with the error.
func (s *errorState) shouldContinue(err error, prop *Properties) bool {
// Ignore unset required fields.
reqNotSet, ok := err.(*RequiredNotSetError)
if !ok {
return false
}
if s.err == nil {
if prop != nil {
err = &RequiredNotSetError{prop.Name + "." + reqNotSet.field}
}
s.err = err
}
return true
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/encode_gogo.go 0 → 100644
View file @ 8f79df77
// Extensions for Protocol Buffers to create more go like structures.
//
// Copyright (c) 2013, Vastech SA (PTY) LTD. All rights reserved.
// http://github.com/gogo/protobuf/gogoproto
//
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// http://github.com/golang/protobuf/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
import (
"reflect"
)
func NewRequiredNotSetError(field string) *RequiredNotSetError {
return &RequiredNotSetError{field}
}
type Sizer interface {
Size() int
}
func (o *Buffer) enc_ext_slice_byte(p *Properties, base structPointer) error {
s := *structPointer_Bytes(base, p.field)
if s == nil {
return ErrNil
}
o.buf = append(o.buf, s...)
return nil
}
func size_ext_slice_byte(p *Properties, base structPointer) (n int) {
s := *structPointer_Bytes(base, p.field)
if s == nil {
return 0
}
n += len(s)
return
}
// Encode a reference to bool pointer.
func (o *Buffer) enc_ref_bool(p *Properties, base structPointer) error {
v := *structPointer_BoolVal(base, p.field)
x := 0
if v {
x = 1
}
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, uint64(x))
return nil
}
func size_ref_bool(p *Properties, base structPointer) int {
return len(p.tagcode) + 1 // each bool takes exactly one byte
}
// Encode a reference to int32 pointer.
func (o *Buffer) enc_ref_int32(p *Properties, base structPointer) error {
v := structPointer_Word32Val(base, p.field)
x := int32(word32Val_Get(v))
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, uint64(x))
return nil
}
func size_ref_int32(p *Properties, base structPointer) (n int) {
v := structPointer_Word32Val(base, p.field)
x := int32(word32Val_Get(v))
n += len(p.tagcode)
n += p.valSize(uint64(x))
return
}
func (o *Buffer) enc_ref_uint32(p *Properties, base structPointer) error {
v := structPointer_Word32Val(base, p.field)
x := word32Val_Get(v)
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, uint64(x))
return nil
}
func size_ref_uint32(p *Properties, base structPointer) (n int) {
v := structPointer_Word32Val(base, p.field)
x := word32Val_Get(v)
n += len(p.tagcode)
n += p.valSize(uint64(x))
return
}
// Encode a reference to an int64 pointer.
func (o *Buffer) enc_ref_int64(p *Properties, base structPointer) error {
v := structPointer_Word64Val(base, p.field)
x := word64Val_Get(v)
o.buf = append(o.buf, p.tagcode...)
p.valEnc(o, x)
return nil
}
func size_ref_int64(p *Properties, base structPointer) (n int) {
v := structPointer_Word64Val(base, p.field)
x := word64Val_Get(v)
n += len(p.tagcode)
n += p.valSize(x)
return
}
// Encode a reference to a string pointer.
func (o *Buffer) enc_ref_string(p *Properties, base structPointer) error {
v := *structPointer_StringVal(base, p.field)
o.buf = append(o.buf, p.tagcode...)
o.EncodeStringBytes(v)
return nil
}
func size_ref_string(p *Properties, base structPointer) (n int) {
v := *structPointer_StringVal(base, p.field)
n += len(p.tagcode)
n += sizeStringBytes(v)
return
}
// Encode a reference to a message struct.
func (o *Buffer) enc_ref_struct_message(p *Properties, base structPointer) error {
var state errorState
structp := structPointer_GetRefStructPointer(base, p.field)
if structPointer_IsNil(structp) {
return ErrNil
}
// Can the object marshal itself?
if p.isMarshaler {
m := structPointer_Interface(structp, p.stype).(Marshaler)
data, err := m.Marshal()
if err != nil && !state.shouldContinue(err, nil) {
return err
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(data)
return nil
}
o.buf = append(o.buf, p.tagcode...)
return o.enc_len_struct(p.sprop, structp, &state)
}
//TODO this is only copied, please fix this
func size_ref_struct_message(p *Properties, base structPointer) int {
structp := structPointer_GetRefStructPointer(base, p.field)
if structPointer_IsNil(structp) {
return 0
}
// Can the object marshal itself?
if p.isMarshaler {
m := structPointer_Interface(structp, p.stype).(Marshaler)
data, _ := m.Marshal()
n0 := len(p.tagcode)
n1 := sizeRawBytes(data)
return n0 + n1
}
n0 := len(p.tagcode)
n1 := size_struct(p.sprop, structp)
n2 := sizeVarint(uint64(n1)) // size of encoded length
return n0 + n1 + n2
}
// Encode a slice of references to message struct pointers ([]struct).
func (o *Buffer) enc_slice_ref_struct_message(p *Properties, base structPointer) error {
var state errorState
ss := structPointer_GetStructPointer(base, p.field)
ss1 := structPointer_GetRefStructPointer(ss, field(0))
size := p.stype.Size()
l := structPointer_Len(base, p.field)
for i := 0; i < l; i++ {
structp := structPointer_Add(ss1, field(uintptr(i)*size))
if structPointer_IsNil(structp) {
return errRepeatedHasNil
}
// Can the object marshal itself?
if p.isMarshaler {
m := structPointer_Interface(structp, p.stype).(Marshaler)
data, err := m.Marshal()
if err != nil && !state.shouldContinue(err, nil) {
return err
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(data)
continue
}
o.buf = append(o.buf, p.tagcode...)
err := o.enc_len_struct(p.sprop, structp, &state)
if err != nil && !state.shouldContinue(err, nil) {
if err == ErrNil {
return errRepeatedHasNil
}
return err
}
}
return state.err
}
//TODO this is only copied, please fix this
func size_slice_ref_struct_message(p *Properties, base structPointer) (n int) {
ss := structPointer_GetStructPointer(base, p.field)
ss1 := structPointer_GetRefStructPointer(ss, field(0))
size := p.stype.Size()
l := structPointer_Len(base, p.field)
n += l * len(p.tagcode)
for i := 0; i < l; i++ {
structp := structPointer_Add(ss1, field(uintptr(i)*size))
if structPointer_IsNil(structp) {
return // return the size up to this point
}
// Can the object marshal itself?
if p.isMarshaler {
m := structPointer_Interface(structp, p.stype).(Marshaler)
data, _ := m.Marshal()
n += len(p.tagcode)
n += sizeRawBytes(data)
continue
}
n0 := size_struct(p.sprop, structp)
n1 := sizeVarint(uint64(n0)) // size of encoded length
n += n0 + n1
}
return
}
func (o *Buffer) enc_custom_bytes(p *Properties, base structPointer) error {
i := structPointer_InterfaceRef(base, p.field, p.ctype)
if i == nil {
return ErrNil
}
custom := i.(Marshaler)
data, err := custom.Marshal()
if err != nil {
return err
}
if data == nil {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(data)
return nil
}
func size_custom_bytes(p *Properties, base structPointer) (n int) {
n += len(p.tagcode)
i := structPointer_InterfaceRef(base, p.field, p.ctype)
if i == nil {
return 0
}
custom := i.(Marshaler)
data, _ := custom.Marshal()
n += sizeRawBytes(data)
return
}
func (o *Buffer) enc_custom_ref_bytes(p *Properties, base structPointer) error {
custom := structPointer_InterfaceAt(base, p.field, p.ctype).(Marshaler)
data, err := custom.Marshal()
if err != nil {
return err
}
if data == nil {
return ErrNil
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(data)
return nil
}
func size_custom_ref_bytes(p *Properties, base structPointer) (n int) {
n += len(p.tagcode)
i := structPointer_InterfaceAt(base, p.field, p.ctype)
if i == nil {
return 0
}
custom := i.(Marshaler)
data, _ := custom.Marshal()
n += sizeRawBytes(data)
return
}
func (o *Buffer) enc_custom_slice_bytes(p *Properties, base structPointer) error {
inter := structPointer_InterfaceRef(base, p.field, p.ctype)
if inter == nil {
return ErrNil
}
slice := reflect.ValueOf(inter)
l := slice.Len()
for i := 0; i < l; i++ {
v := slice.Index(i)
custom := v.Interface().(Marshaler)
data, err := custom.Marshal()
if err != nil {
return err
}
o.buf = append(o.buf, p.tagcode...)
o.EncodeRawBytes(data)
}
return nil
}
func size_custom_slice_bytes(p *Properties, base structPointer) (n int) {
inter := structPointer_InterfaceRef(base, p.field, p.ctype)
if inter == nil {
return 0
}
slice := reflect.ValueOf(inter)
l := slice.Len()
n += l * len(p.tagcode)
for i := 0; i < l; i++ {
v := slice.Index(i)
custom := v.Interface().(Marshaler)
data, _ := custom.Marshal()
n += sizeRawBytes(data)
}
return
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/equal.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Protocol buffer comparison.
// TODO: MessageSet.
package proto
import (
"bytes"
"log"
"reflect"
"strings"
)
/*
Equal returns true iff protocol buffers a and b are equal.
The arguments must both be pointers to protocol buffer structs.
Equality is defined in this way:
- Two messages are equal iff they are the same type,
corresponding fields are equal, unknown field sets
are equal, and extensions sets are equal.
- Two set scalar fields are equal iff their values are equal.
If the fields are of a floating-point type, remember that
NaN != x for all x, including NaN.
- Two repeated fields are equal iff their lengths are the same,
and their corresponding elements are equal (a "bytes" field,
although represented by []byte, is not a repeated field)
- Two unset fields are equal.
- Two unknown field sets are equal if their current
encoded state is equal.
- Two extension sets are equal iff they have corresponding
elements that are pairwise equal.
- Every other combination of things are not equal.
The return value is undefined if a and b are not protocol buffers.
*/
func Equal(a, b Message) bool {
if a == nil || b == nil {
return a == b
}
v1, v2 := reflect.ValueOf(a), reflect.ValueOf(b)
if v1.Type() != v2.Type() {
return false
}
if v1.Kind() == reflect.Ptr {
if v1.IsNil() {
return v2.IsNil()
}
if v2.IsNil() {
return false
}
v1, v2 = v1.Elem(), v2.Elem()
}
if v1.Kind() != reflect.Struct {
return false
}
return equalStruct(v1, v2)
}
// v1 and v2 are known to have the same type.
func equalStruct(v1, v2 reflect.Value) bool {
for i := 0; i < v1.NumField(); i++ {
f := v1.Type().Field(i)
if strings.HasPrefix(f.Name, "XXX_") {
continue
}
f1, f2 := v1.Field(i), v2.Field(i)
if f.Type.Kind() == reflect.Ptr {
if n1, n2 := f1.IsNil(), f2.IsNil(); n1 && n2 {
// both unset
continue
} else if n1 != n2 {
// set/unset mismatch
return false
}
b1, ok := f1.Interface().(raw)
if ok {
b2 := f2.Interface().(raw)
// RawMessage
if !bytes.Equal(b1.Bytes(), b2.Bytes()) {
return false
}
continue
}
f1, f2 = f1.Elem(), f2.Elem()
}
if !equalAny(f1, f2) {
return false
}
}
if em1 := v1.FieldByName("XXX_extensions"); em1.IsValid() {
em2 := v2.FieldByName("XXX_extensions")
if !equalExtensions(v1.Type(), em1.Interface().(map[int32]Extension), em2.Interface().(map[int32]Extension)) {
return false
}
}
uf := v1.FieldByName("XXX_unrecognized")
if !uf.IsValid() {
return true
}
u1 := uf.Bytes()
u2 := v2.FieldByName("XXX_unrecognized").Bytes()
if !bytes.Equal(u1, u2) {
return false
}
return true
}
// v1 and v2 are known to have the same type.
func equalAny(v1, v2 reflect.Value) bool {
if v1.Type() == protoMessageType {
m1, _ := v1.Interface().(Message)
m2, _ := v2.Interface().(Message)
return Equal(m1, m2)
}
switch v1.Kind() {
case reflect.Bool:
return v1.Bool() == v2.Bool()
case reflect.Float32, reflect.Float64:
return v1.Float() == v2.Float()
case reflect.Int32, reflect.Int64:
return v1.Int() == v2.Int()
case reflect.Interface:
// Probably a oneof field; compare the inner values.
n1, n2 := v1.IsNil(), v2.IsNil()
if n1 || n2 {
return n1 == n2
}
e1, e2 := v1.Elem(), v2.Elem()
if e1.Type() != e2.Type() {
return false
}
return equalAny(e1, e2)
case reflect.Map:
if v1.Len() != v2.Len() {
return false
}
for _, key := range v1.MapKeys() {
val2 := v2.MapIndex(key)
if !val2.IsValid() {
// This key was not found in the second map.
return false
}
if !equalAny(v1.MapIndex(key), val2) {
return false
}
}
return true
case reflect.Ptr:
return equalAny(v1.Elem(), v2.Elem())
case reflect.Slice:
if v1.Type().Elem().Kind() == reflect.Uint8 {
// short circuit: []byte
if v1.IsNil() != v2.IsNil() {
return false
}
return bytes.Equal(v1.Interface().([]byte), v2.Interface().([]byte))
}
if v1.Len() != v2.Len() {
return false
}
for i := 0; i < v1.Len(); i++ {
if !equalAny(v1.Index(i), v2.Index(i)) {
return false
}
}
return true
case reflect.String:
return v1.Interface().(string) == v2.Interface().(string)
case reflect.Struct:
return equalStruct(v1, v2)
case reflect.Uint32, reflect.Uint64:
return v1.Uint() == v2.Uint()
}
// unknown type, so not a protocol buffer
log.Printf("proto: don't know how to compare %v", v1)
return false
}
// base is the struct type that the extensions are based on.
// em1 and em2 are extension maps.
func equalExtensions(base reflect.Type, em1, em2 map[int32]Extension) bool {
if len(em1) != len(em2) {
return false
}
for extNum, e1 := range em1 {
e2, ok := em2[extNum]
if !ok {
return false
}
m1, m2 := e1.value, e2.value
if m1 != nil && m2 != nil {
// Both are unencoded.
if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2)) {
return false
}
continue
}
// At least one is encoded. To do a semantically correct comparison
// we need to unmarshal them first.
var desc *ExtensionDesc
if m := extensionMaps[base]; m != nil {
desc = m[extNum]
}
if desc == nil {
log.Printf("proto: don't know how to compare extension %d of %v", extNum, base)
continue
}
var err error
if m1 == nil {
m1, err = decodeExtension(e1.enc, desc)
}
if m2 == nil && err == nil {
m2, err = decodeExtension(e2.enc, desc)
}
if err != nil {
// The encoded form is invalid.
log.Printf("proto: badly encoded extension %d of %v: %v", extNum, base, err)
return false
}
if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2)) {
return false
}
}
return true
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/equal_test.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"testing"
. "QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto"
pb "QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/testdata"
)
// Four identical base messages.
// The init function adds extensions to some of them.
var messageWithoutExtension = &pb.MyMessage{Count: Int32(7)}
var messageWithExtension1a = &pb.MyMessage{Count: Int32(7)}
var messageWithExtension1b = &pb.MyMessage{Count: Int32(7)}
var messageWithExtension2 = &pb.MyMessage{Count: Int32(7)}
// Two messages with non-message extensions.
var messageWithInt32Extension1 = &pb.MyMessage{Count: Int32(8)}
var messageWithInt32Extension2 = &pb.MyMessage{Count: Int32(8)}
func init() {
ext1 := &pb.Ext{Data: String("Kirk")}
ext2 := &pb.Ext{Data: String("Picard")}
// messageWithExtension1a has ext1, but never marshals it.
if err := SetExtension(messageWithExtension1a, pb.E_Ext_More, ext1); err != nil {
panic("SetExtension on 1a failed: " + err.Error())
}
// messageWithExtension1b is the unmarshaled form of messageWithExtension1a.
if err := SetExtension(messageWithExtension1b, pb.E_Ext_More, ext1); err != nil {
panic("SetExtension on 1b failed: " + err.Error())
}
buf, err := Marshal(messageWithExtension1b)
if err != nil {
panic("Marshal of 1b failed: " + err.Error())
}
messageWithExtension1b.Reset()
if err := Unmarshal(buf, messageWithExtension1b); err != nil {
panic("Unmarshal of 1b failed: " + err.Error())
}
// messageWithExtension2 has ext2.
if err := SetExtension(messageWithExtension2, pb.E_Ext_More, ext2); err != nil {
panic("SetExtension on 2 failed: " + err.Error())
}
if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(23)); err != nil {
panic("SetExtension on Int32-1 failed: " + err.Error())
}
if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(24)); err != nil {
panic("SetExtension on Int32-2 failed: " + err.Error())
}
}
var EqualTests = []struct {
desc string
a, b Message
exp bool
}{
{"different types", &pb.GoEnum{}, &pb.GoTestField{}, false},
{"equal empty", &pb.GoEnum{}, &pb.GoEnum{}, true},
{"nil vs nil", nil, nil, true},
{"typed nil vs typed nil", (*pb.GoEnum)(nil), (*pb.GoEnum)(nil), true},
{"typed nil vs empty", (*pb.GoEnum)(nil), &pb.GoEnum{}, false},
{"different typed nil", (*pb.GoEnum)(nil), (*pb.GoTestField)(nil), false},
{"one set field, one unset field", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{}, false},
{"one set field zero, one unset field", &pb.GoTest{Param: Int32(0)}, &pb.GoTest{}, false},
{"different set fields", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("bar")}, false},
{"equal set", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("foo")}, true},
{"repeated, one set", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{}, false},
{"repeated, different length", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{F_Int32Repeated: []int32{2}}, false},
{"repeated, different value", &pb.GoTest{F_Int32Repeated: []int32{2}}, &pb.GoTest{F_Int32Repeated: []int32{3}}, false},
{"repeated, equal", &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, true},
{"repeated, nil equal nil", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: nil}, true},
{"repeated, nil equal empty", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: []int32{}}, true},
{"repeated, empty equal nil", &pb.GoTest{F_Int32Repeated: []int32{}}, &pb.GoTest{F_Int32Repeated: nil}, true},
{
"nested, different",
&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("foo")}},
&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("bar")}},
false,
},
{
"nested, equal",
&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
true,
},
{"bytes", &pb.OtherMessage{Value: []byte("foo")}, &pb.OtherMessage{Value: []byte("foo")}, true},
{"bytes, empty", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: []byte{}}, true},
{"bytes, empty vs nil", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: nil}, false},
{
"repeated bytes",
&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
true,
},
{"extension vs. no extension", messageWithoutExtension, messageWithExtension1a, false},
{"extension vs. same extension", messageWithExtension1a, messageWithExtension1b, true},
{"extension vs. different extension", messageWithExtension1a, messageWithExtension2, false},
{"int32 extension vs. itself", messageWithInt32Extension1, messageWithInt32Extension1, true},
{"int32 extension vs. a different int32", messageWithInt32Extension1, messageWithInt32Extension2, false},
{
"message with group",
&pb.MyMessage{
Count: Int32(1),
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: Int32(5),
},
},
&pb.MyMessage{
Count: Int32(1),
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: Int32(5),
},
},
true,
},
{
"map same",
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
true,
},
{
"map different entry",
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb.MessageWithMap{NameMapping: map[int32]string{2: "Rob"}},
false,
},
{
"map different key only",
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb.MessageWithMap{NameMapping: map[int32]string{2: "Ken"}},
false,
},
{
"map different value only",
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Rob"}},
false,
},
{
"oneof same",
&pb.Communique{Union: &pb.Communique_Number{Number: 41}},
&pb.Communique{Union: &pb.Communique_Number{Number: 41}},
true,
},
{
"oneof one nil",
&pb.Communique{Union: &pb.Communique_Number{Number: 41}},
&pb.Communique{},
false,
},
{
"oneof different",
&pb.Communique{Union: &pb.Communique_Number{Number: 41}},
&pb.Communique{Union: &pb.Communique_Name{Name: "Bobby Tables"}},
false,
},
}
func TestEqual(t *testing.T) {
for _, tc := range EqualTests {
if res := Equal(tc.a, tc.b); res != tc.exp {
t.Errorf("%v: Equal(%v, %v) = %v, want %v", tc.desc, tc.a, tc.b, res, tc.exp)
}
}
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/extensions.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Types and routines for supporting protocol buffer extensions.
*/
import (
"errors"
"fmt"
"reflect"
"strconv"
"sync"
)
// ErrMissingExtension is the error returned by GetExtension if the named extension is not in the message.
var ErrMissingExtension = errors.New("proto: missing extension")
// ExtensionRange represents a range of message extensions for a protocol buffer.
// Used in code generated by the protocol compiler.
type ExtensionRange struct {
Start, End int32 // both inclusive
}
// extendableProto is an interface implemented by any protocol buffer that may be extended.
type extendableProto interface {
Message
ExtensionRangeArray() []ExtensionRange
}
type extensionsMap interface {
extendableProto
ExtensionMap() map[int32]Extension
}
type extensionsBytes interface {
extendableProto
GetExtensions() *[]byte
}
var extendableProtoType = reflect.TypeOf((*extendableProto)(nil)).Elem()
// ExtensionDesc represents an extension specification.
// Used in generated code from the protocol compiler.
type ExtensionDesc struct {
ExtendedType Message // nil pointer to the type that is being extended
ExtensionType interface{} // nil pointer to the extension type
Field int32 // field number
Name string // fully-qualified name of extension, for text formatting
Tag string // protobuf tag style
}
func (ed *ExtensionDesc) repeated() bool {
t := reflect.TypeOf(ed.ExtensionType)
return t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8
}
// Extension represents an extension in a message.
type Extension struct {
// When an extension is stored in a message using SetExtension
// only desc and value are set. When the message is marshaled
// enc will be set to the encoded form of the message.
//
// When a message is unmarshaled and contains extensions, each
// extension will have only enc set. When such an extension is
// accessed using GetExtension (or GetExtensions) desc and value
// will be set.
desc *ExtensionDesc
value interface{}
enc []byte
}
// SetRawExtension is for testing only.
func SetRawExtension(base extendableProto, id int32, b []byte) {
if ebase, ok := base.(extensionsMap); ok {
ebase.ExtensionMap()[id] = Extension{enc: b}
} else if ebase, ok := base.(extensionsBytes); ok {
clearExtension(base, id)
ext := ebase.GetExtensions()
*ext = append(*ext, b...)
} else {
panic("unreachable")
}
}
// isExtensionField returns true iff the given field number is in an extension range.
func isExtensionField(pb extendableProto, field int32) bool {
for _, er := range pb.ExtensionRangeArray() {
if er.Start <= field && field <= er.End {
return true
}
}
return false
}
// checkExtensionTypes checks that the given extension is valid for pb.
func checkExtensionTypes(pb extendableProto, extension *ExtensionDesc) error {
// Check the extended type.
if a, b := reflect.TypeOf(pb), reflect.TypeOf(extension.ExtendedType); a != b {
return errors.New("proto: bad extended type; " + b.String() + " does not extend " + a.String())
}
// Check the range.
if !isExtensionField(pb, extension.Field) {
return errors.New("proto: bad extension number; not in declared ranges")
}
return nil
}
// extPropKey is sufficient to uniquely identify an extension.
type extPropKey struct {
base reflect.Type
field int32
}
var extProp = struct {
sync.RWMutex
m map[extPropKey]*Properties
}{
m: make(map[extPropKey]*Properties),
}
func extensionProperties(ed *ExtensionDesc) *Properties {
key := extPropKey{base: reflect.TypeOf(ed.ExtendedType), field: ed.Field}
extProp.RLock()
if prop, ok := extProp.m[key]; ok {
extProp.RUnlock()
return prop
}
extProp.RUnlock()
extProp.Lock()
defer extProp.Unlock()
// Check again.
if prop, ok := extProp.m[key]; ok {
return prop
}
prop := new(Properties)
prop.Init(reflect.TypeOf(ed.ExtensionType), "unknown_name", ed.Tag, nil)
extProp.m[key] = prop
return prop
}
// encodeExtensionMap encodes any unmarshaled (unencoded) extensions in m.
func encodeExtensionMap(m map[int32]Extension) error {
for k, e := range m {
err := encodeExtension(&e)
if err != nil {
return err
}
m[k] = e
}
return nil
}
func encodeExtension(e *Extension) error {
if e.value == nil || e.desc == nil {
// Extension is only in its encoded form.
return nil
}
// We don't skip extensions that have an encoded form set,
// because the extension value may have been mutated after
// the last time this function was called.
et := reflect.TypeOf(e.desc.ExtensionType)
props := extensionProperties(e.desc)
p := NewBuffer(nil)
// If e.value has type T, the encoder expects a *struct{ X T }.
// Pass a *T with a zero field and hope it all works out.
x := reflect.New(et)
x.Elem().Set(reflect.ValueOf(e.value))
if err := props.enc(p, props, toStructPointer(x)); err != nil {
return err
}
e.enc = p.buf
return nil
}
func sizeExtensionMap(m map[int32]Extension) (n int) {
for _, e := range m {
if e.value == nil || e.desc == nil {
// Extension is only in its encoded form.
n += len(e.enc)
continue
}
// We don't skip extensions that have an encoded form set,
// because the extension value may have been mutated after
// the last time this function was called.
et := reflect.TypeOf(e.desc.ExtensionType)
props := extensionProperties(e.desc)
// If e.value has type T, the encoder expects a *struct{ X T }.
// Pass a *T with a zero field and hope it all works out.
x := reflect.New(et)
x.Elem().Set(reflect.ValueOf(e.value))
n += props.size(props, toStructPointer(x))
}
return
}
// HasExtension returns whether the given extension is present in pb.
func HasExtension(pb extendableProto, extension *ExtensionDesc) bool {
// TODO: Check types, field numbers, etc.?
if epb, doki := pb.(extensionsMap); doki {
_, ok := epb.ExtensionMap()[extension.Field]
return ok
} else if epb, doki := pb.(extensionsBytes); doki {
ext := epb.GetExtensions()
buf := *ext
o := 0
for o < len(buf) {
tag, n := DecodeVarint(buf[o:])
fieldNum := int32(tag >> 3)
if int32(fieldNum) == extension.Field {
return true
}
wireType := int(tag & 0x7)
o += n
l, err := size(buf[o:], wireType)
if err != nil {
return false
}
o += l
}
return false
}
panic("unreachable")
}
func deleteExtension(pb extensionsBytes, theFieldNum int32, offset int) int {
ext := pb.GetExtensions()
for offset < len(*ext) {
tag, n1 := DecodeVarint((*ext)[offset:])
fieldNum := int32(tag >> 3)
wireType := int(tag & 0x7)
n2, err := size((*ext)[offset+n1:], wireType)
if err != nil {
panic(err)
}
newOffset := offset + n1 + n2
if fieldNum == theFieldNum {
*ext = append((*ext)[:offset], (*ext)[newOffset:]...)
return offset
}
offset = newOffset
}
return -1
}
func clearExtension(pb extendableProto, fieldNum int32) {
if epb, doki := pb.(extensionsMap); doki {
delete(epb.ExtensionMap(), fieldNum)
} else if epb, doki := pb.(extensionsBytes); doki {
offset := 0
for offset != -1 {
offset = deleteExtension(epb, fieldNum, offset)
}
} else {
panic("unreachable")
}
}
// ClearExtension removes the given extension from pb.
func ClearExtension(pb extendableProto, extension *ExtensionDesc) {
// TODO: Check types, field numbers, etc.?
clearExtension(pb, extension.Field)
}
// GetExtension parses and returns the given extension of pb.
// If the extension is not present it returns ErrMissingExtension.
func GetExtension(pb extendableProto, extension *ExtensionDesc) (interface{}, error) {
if err := checkExtensionTypes(pb, extension); err != nil {
return nil, err
}
if epb, doki := pb.(extensionsMap); doki {
emap := epb.ExtensionMap()
e, ok := emap[extension.Field]
if !ok {
// defaultExtensionValue returns the default value or
// ErrMissingExtension if there is no default.
return defaultExtensionValue(extension)
}
if e.value != nil {
// Already decoded. Check the descriptor, though.
if e.desc != extension {
// This shouldn't happen. If it does, it means that
// GetExtension was called twice with two different
// descriptors with the same field number.
return nil, errors.New("proto: descriptor conflict")
}
return e.value, nil
}
v, err := decodeExtension(e.enc, extension)
if err != nil {
return nil, err
}
// Remember the decoded version and drop the encoded version.
// That way it is safe to mutate what we return.
e.value = v
e.desc = extension
e.enc = nil
emap[extension.Field] = e
return e.value, nil
} else if epb, doki := pb.(extensionsBytes); doki {
ext := epb.GetExtensions()
o := 0
for o < len(*ext) {
tag, n := DecodeVarint((*ext)[o:])
fieldNum := int32(tag >> 3)
wireType := int(tag & 0x7)
l, err := size((*ext)[o+n:], wireType)
if err != nil {
return nil, err
}
if int32(fieldNum) == extension.Field {
v, err := decodeExtension((*ext)[o:o+n+l], extension)
if err != nil {
return nil, err
}
return v, nil
}
o += n + l
}
return defaultExtensionValue(extension)
}
panic("unreachable")
}
// defaultExtensionValue returns the default value for extension.
// If no default for an extension is defined ErrMissingExtension is returned.
func defaultExtensionValue(extension *ExtensionDesc) (interface{}, error) {
t := reflect.TypeOf(extension.ExtensionType)
props := extensionProperties(extension)
sf, _, err := fieldDefault(t, props)
if err != nil {
return nil, err
}
if sf == nil || sf.value == nil {
// There is no default value.
return nil, ErrMissingExtension
}
if t.Kind() != reflect.Ptr {
// We do not need to return a Ptr, we can directly return sf.value.
return sf.value, nil
}
// We need to return an interface{} that is a pointer to sf.value.
value := reflect.New(t).Elem()
value.Set(reflect.New(value.Type().Elem()))
if sf.kind == reflect.Int32 {
// We may have an int32 or an enum, but the underlying data is int32.
// Since we can't set an int32 into a non int32 reflect.value directly
// set it as a int32.
value.Elem().SetInt(int64(sf.value.(int32)))
} else {
value.Elem().Set(reflect.ValueOf(sf.value))
}
return value.Interface(), nil
}
// decodeExtension decodes an extension encoded in b.
func decodeExtension(b []byte, extension *ExtensionDesc) (interface{}, error) {
o := NewBuffer(b)
t := reflect.TypeOf(extension.ExtensionType)
rep := extension.repeated()
props := extensionProperties(extension)
// t is a pointer to a struct, pointer to basic type or a slice.
// Allocate a "field" to store the pointer/slice itself; the
// pointer/slice will be stored here. We pass
// the address of this field to props.dec.
// This passes a zero field and a *t and lets props.dec
// interpret it as a *struct{ x t }.
value := reflect.New(t).Elem()
for {
// Discard wire type and field number varint. It isn't needed.
if _, err := o.DecodeVarint(); err != nil {
return nil, err
}
if err := props.dec(o, props, toStructPointer(value.Addr())); err != nil {
return nil, err
}
if !rep || o.index >= len(o.buf) {
break
}
}
return value.Interface(), nil
}
// GetExtensions returns a slice of the extensions present in pb that are also listed in es.
// The returned slice has the same length as es; missing extensions will appear as nil elements.
func GetExtensions(pb Message, es []*ExtensionDesc) (extensions []interface{}, err error) {
epb, ok := pb.(extendableProto)
if !ok {
err = errors.New("proto: not an extendable proto")
return
}
extensions = make([]interface{}, len(es))
for i, e := range es {
extensions[i], err = GetExtension(epb, e)
if err == ErrMissingExtension {
err = nil
}
if err != nil {
return
}
}
return
}
// SetExtension sets the specified extension of pb to the specified value.
func SetExtension(pb extendableProto, extension *ExtensionDesc, value interface{}) error {
if err := checkExtensionTypes(pb, extension); err != nil {
return err
}
typ := reflect.TypeOf(extension.ExtensionType)
if typ != reflect.TypeOf(value) {
return errors.New("proto: bad extension value type")
}
// nil extension values need to be caught early, because the
// encoder can't distinguish an ErrNil due to a nil extension
// from an ErrNil due to a missing field. Extensions are
// always optional, so the encoder would just swallow the error
// and drop all the extensions from the encoded message.
if reflect.ValueOf(value).IsNil() {
return fmt.Errorf("proto: SetExtension called with nil value of type %T", value)
}
return setExtension(pb, extension, value)
}
func setExtension(pb extendableProto, extension *ExtensionDesc, value interface{}) error {
if epb, doki := pb.(extensionsMap); doki {
epb.ExtensionMap()[extension.Field] = Extension{desc: extension, value: value}
} else if epb, doki := pb.(extensionsBytes); doki {
ClearExtension(pb, extension)
ext := epb.GetExtensions()
et := reflect.TypeOf(extension.ExtensionType)
props := extensionProperties(extension)
p := NewBuffer(nil)
x := reflect.New(et)
x.Elem().Set(reflect.ValueOf(value))
if err := props.enc(p, props, toStructPointer(x)); err != nil {
return err
}
*ext = append(*ext, p.buf...)
}
return nil
}
// A global registry of extensions.
// The generated code will register the generated descriptors by calling RegisterExtension.
var extensionMaps = make(map[reflect.Type]map[int32]*ExtensionDesc)
// RegisterExtension is called from the generated code.
func RegisterExtension(desc *ExtensionDesc) {
st := reflect.TypeOf(desc.ExtendedType).Elem()
m := extensionMaps[st]
if m == nil {
m = make(map[int32]*ExtensionDesc)
extensionMaps[st] = m
}
if _, ok := m[desc.Field]; ok {
panic("proto: duplicate extension registered: " + st.String() + " " + strconv.Itoa(int(desc.Field)))
}
m[desc.Field] = desc
}
// RegisteredExtensions returns a map of the registered extensions of a
// protocol buffer struct, indexed by the extension number.
// The argument pb should be a nil pointer to the struct type.
func RegisteredExtensions(pb Message) map[int32]*ExtensionDesc {
return extensionMaps[reflect.TypeOf(pb).Elem()]
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/extensions_gogo.go 0 → 100644
View file @ 8f79df77
// Copyright (c) 2013, Vastech SA (PTY) LTD. All rights reserved.
// http://github.com/gogo/protobuf/gogoproto
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
import (
"bytes"
"errors"
"fmt"
"reflect"
"sort"
"strings"
)
func GetBoolExtension(pb extendableProto, extension *ExtensionDesc, ifnotset bool) bool {
if reflect.ValueOf(pb).IsNil() {
return ifnotset
}
value, err := GetExtension(pb, extension)
if err != nil {
return ifnotset
}
if value == nil {
return ifnotset
}
if value.(*bool) == nil {
return ifnotset
}
return *(value.(*bool))
}
func (this *Extension) Equal(that *Extension) bool {
return bytes.Equal(this.enc, that.enc)
}
func SizeOfExtensionMap(m map[int32]Extension) (n int) {
return sizeExtensionMap(m)
}
type sortableMapElem struct {
field int32
ext Extension
}
func newSortableExtensionsFromMap(m map[int32]Extension) sortableExtensions {
s := make(sortableExtensions, 0, len(m))
for k, v := range m {
s = append(s, &sortableMapElem{field: k, ext: v})
}
return s
}
type sortableExtensions []*sortableMapElem
func (this sortableExtensions) Len() int { return len(this) }
func (this sortableExtensions) Swap(i, j int) { this[i], this[j] = this[j], this[i] }
func (this sortableExtensions) Less(i, j int) bool { return this[i].field < this[j].field }
func (this sortableExtensions) String() string {
sort.Sort(this)
ss := make([]string, len(this))
for i := range this {
ss[i] = fmt.Sprintf("%d: %v", this[i].field, this[i].ext)
}
return "map[" + strings.Join(ss, ",") + "]"
}
func StringFromExtensionsMap(m map[int32]Extension) string {
return newSortableExtensionsFromMap(m).String()
}
func StringFromExtensionsBytes(ext []byte) string {
m, err := BytesToExtensionsMap(ext)
if err != nil {
panic(err)
}
return StringFromExtensionsMap(m)
}
func EncodeExtensionMap(m map[int32]Extension, data []byte) (n int, err error) {
if err := encodeExtensionMap(m); err != nil {
return 0, err
}
keys := make([]int, 0, len(m))
for k := range m {
keys = append(keys, int(k))
}
sort.Ints(keys)
for _, k := range keys {
n += copy(data[n:], m[int32(k)].enc)
}
return n, nil
}
func GetRawExtension(m map[int32]Extension, id int32) ([]byte, error) {
if m[id].value == nil || m[id].desc == nil {
return m[id].enc, nil
}
if err := encodeExtensionMap(m); err != nil {
return nil, err
}
return m[id].enc, nil
}
func size(buf []byte, wire int) (int, error) {
switch wire {
case WireVarint:
_, n := DecodeVarint(buf)
return n, nil
case WireFixed64:
return 8, nil
case WireBytes:
v, n := DecodeVarint(buf)
return int(v) + n, nil
case WireFixed32:
return 4, nil
case WireStartGroup:
offset := 0
for {
u, n := DecodeVarint(buf[offset:])
fwire := int(u & 0x7)
offset += n
if fwire == WireEndGroup {
return offset, nil
}
s, err := size(buf[offset:], wire)
if err != nil {
return 0, err
}
offset += s
}
}
return 0, fmt.Errorf("proto: can't get size for unknown wire type %d", wire)
}
func BytesToExtensionsMap(buf []byte) (map[int32]Extension, error) {
m := make(map[int32]Extension)
i := 0
for i < len(buf) {
tag, n := DecodeVarint(buf[i:])
if n <= 0 {
return nil, fmt.Errorf("unable to decode varint")
}
fieldNum := int32(tag >> 3)
wireType := int(tag & 0x7)
l, err := size(buf[i+n:], wireType)
if err != nil {
return nil, err
}
end := i + int(l) + n
m[int32(fieldNum)] = Extension{enc: buf[i:end]}
i = end
}
return m, nil
}
func NewExtension(e []byte) Extension {
ee := Extension{enc: make([]byte, len(e))}
copy(ee.enc, e)
return ee
}
func (this Extension) GoString() string {
if this.enc == nil {
if err := encodeExtension(&this); err != nil {
panic(err)
}
}
return fmt.Sprintf("proto.NewExtension(%#v)", this.enc)
}
func SetUnsafeExtension(pb extendableProto, fieldNum int32, value interface{}) error {
typ := reflect.TypeOf(pb).Elem()
ext, ok := extensionMaps[typ]
if !ok {
return fmt.Errorf("proto: bad extended type; %s is not extendable", typ.String())
}
desc, ok := ext[fieldNum]
if !ok {
return errors.New("proto: bad extension number; not in declared ranges")
}
return setExtension(pb, desc, value)
}
func GetUnsafeExtension(pb extendableProto, fieldNum int32) (interface{}, error) {
typ := reflect.TypeOf(pb).Elem()
ext, ok := extensionMaps[typ]
if !ok {
return nil, fmt.Errorf("proto: bad extended type; %s is not extendable", typ.String())
}
desc, ok := ext[fieldNum]
if !ok {
return nil, fmt.Errorf("unregistered field number %d", fieldNum)
}
return GetExtension(pb, desc)
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/extensions_test.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2014 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"fmt"
"reflect"
"testing"
"QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto"
pb "QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/testdata"
)
func TestGetExtensionsWithMissingExtensions(t *testing.T) {
msg := &pb.MyMessage{}
ext1 := &pb.Ext{}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext1); err != nil {
t.Fatalf("Could not set ext1: %s", ext1)
}
exts, err := proto.GetExtensions(msg, []*proto.ExtensionDesc{
pb.E_Ext_More,
pb.E_Ext_Text,
})
if err != nil {
t.Fatalf("GetExtensions() failed: %s", err)
}
if exts[0] != ext1 {
t.Errorf("ext1 not in returned extensions: %T %v", exts[0], exts[0])
}
if exts[1] != nil {
t.Errorf("ext2 in returned extensions: %T %v", exts[1], exts[1])
}
}
func TestGetExtensionStability(t *testing.T) {
check := func(m *pb.MyMessage) bool {
ext1, err := proto.GetExtension(m, pb.E_Ext_More)
if err != nil {
t.Fatalf("GetExtension() failed: %s", err)
}
ext2, err := proto.GetExtension(m, pb.E_Ext_More)
if err != nil {
t.Fatalf("GetExtension() failed: %s", err)
}
return ext1 == ext2
}
msg := &pb.MyMessage{Count: proto.Int32(4)}
ext0 := &pb.Ext{}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext0); err != nil {
t.Fatalf("Could not set ext1: %s", ext0)
}
if !check(msg) {
t.Errorf("GetExtension() not stable before marshaling")
}
bb, err := proto.Marshal(msg)
if err != nil {
t.Fatalf("Marshal() failed: %s", err)
}
msg1 := &pb.MyMessage{}
err = proto.Unmarshal(bb, msg1)
if err != nil {
t.Fatalf("Unmarshal() failed: %s", err)
}
if !check(msg1) {
t.Errorf("GetExtension() not stable after unmarshaling")
}
}
func TestGetExtensionDefaults(t *testing.T) {
var setFloat64 float64 = 1
var setFloat32 float32 = 2
var setInt32 int32 = 3
var setInt64 int64 = 4
var setUint32 uint32 = 5
var setUint64 uint64 = 6
var setBool = true
var setBool2 = false
var setString = "Goodnight string"
var setBytes = []byte("Goodnight bytes")
var setEnum = pb.DefaultsMessage_TWO
type testcase struct {
ext *proto.ExtensionDesc // Extension we are testing.
want interface{} // Expected value of extension, or nil (meaning that GetExtension will fail).
def interface{} // Expected value of extension after ClearExtension().
}
tests := []testcase{
{pb.E_NoDefaultDouble, setFloat64, nil},
{pb.E_NoDefaultFloat, setFloat32, nil},
{pb.E_NoDefaultInt32, setInt32, nil},
{pb.E_NoDefaultInt64, setInt64, nil},
{pb.E_NoDefaultUint32, setUint32, nil},
{pb.E_NoDefaultUint64, setUint64, nil},
{pb.E_NoDefaultSint32, setInt32, nil},
{pb.E_NoDefaultSint64, setInt64, nil},
{pb.E_NoDefaultFixed32, setUint32, nil},
{pb.E_NoDefaultFixed64, setUint64, nil},
{pb.E_NoDefaultSfixed32, setInt32, nil},
{pb.E_NoDefaultSfixed64, setInt64, nil},
{pb.E_NoDefaultBool, setBool, nil},
{pb.E_NoDefaultBool, setBool2, nil},
{pb.E_NoDefaultString, setString, nil},
{pb.E_NoDefaultBytes, setBytes, nil},
{pb.E_NoDefaultEnum, setEnum, nil},
{pb.E_DefaultDouble, setFloat64, float64(3.1415)},
{pb.E_DefaultFloat, setFloat32, float32(3.14)},
{pb.E_DefaultInt32, setInt32, int32(42)},
{pb.E_DefaultInt64, setInt64, int64(43)},
{pb.E_DefaultUint32, setUint32, uint32(44)},
{pb.E_DefaultUint64, setUint64, uint64(45)},
{pb.E_DefaultSint32, setInt32, int32(46)},
{pb.E_DefaultSint64, setInt64, int64(47)},
{pb.E_DefaultFixed32, setUint32, uint32(48)},
{pb.E_DefaultFixed64, setUint64, uint64(49)},
{pb.E_DefaultSfixed32, setInt32, int32(50)},
{pb.E_DefaultSfixed64, setInt64, int64(51)},
{pb.E_DefaultBool, setBool, true},
{pb.E_DefaultBool, setBool2, true},
{pb.E_DefaultString, setString, "Hello, string"},
{pb.E_DefaultBytes, setBytes, []byte("Hello, bytes")},
{pb.E_DefaultEnum, setEnum, pb.DefaultsMessage_ONE},
}
checkVal := func(test testcase, msg *pb.DefaultsMessage, valWant interface{}) error {
val, err := proto.GetExtension(msg, test.ext)
if err != nil {
if valWant != nil {
return fmt.Errorf("GetExtension(): %s", err)
}
if want := proto.ErrMissingExtension; err != want {
return fmt.Errorf("Unexpected error: got %v, want %v", err, want)
}
return nil
}
// All proto2 extension values are either a pointer to a value or a slice of values.
ty := reflect.TypeOf(val)
tyWant := reflect.TypeOf(test.ext.ExtensionType)
if got, want := ty, tyWant; got != want {
return fmt.Errorf("unexpected reflect.TypeOf(): got %v want %v", got, want)
}
tye := ty.Elem()
tyeWant := tyWant.Elem()
if got, want := tye, tyeWant; got != want {
return fmt.Errorf("unexpected reflect.TypeOf().Elem(): got %v want %v", got, want)
}
// Check the name of the type of the value.
// If it is an enum it will be type int32 with the name of the enum.
if got, want := tye.Name(), tye.Name(); got != want {
return fmt.Errorf("unexpected reflect.TypeOf().Elem().Name(): got %v want %v", got, want)
}
// Check that value is what we expect.
// If we have a pointer in val, get the value it points to.
valExp := val
if ty.Kind() == reflect.Ptr {
valExp = reflect.ValueOf(val).Elem().Interface()
}
if got, want := valExp, valWant; !reflect.DeepEqual(got, want) {
return fmt.Errorf("unexpected reflect.DeepEqual(): got %v want %v", got, want)
}
return nil
}
setTo := func(test testcase) interface{} {
setTo := reflect.ValueOf(test.want)
if typ := reflect.TypeOf(test.ext.ExtensionType); typ.Kind() == reflect.Ptr {
setTo = reflect.New(typ).Elem()
setTo.Set(reflect.New(setTo.Type().Elem()))
setTo.Elem().Set(reflect.ValueOf(test.want))
}
return setTo.Interface()
}
for _, test := range tests {
msg := &pb.DefaultsMessage{}
name := test.ext.Name
// Check the initial value.
if err := checkVal(test, msg, test.def); err != nil {
t.Errorf("%s: %v", name, err)
}
// Set the per-type value and check value.
name = fmt.Sprintf("%s (set to %T %v)", name, test.want, test.want)
if err := proto.SetExtension(msg, test.ext, setTo(test)); err != nil {
t.Errorf("%s: SetExtension(): %v", name, err)
continue
}
if err := checkVal(test, msg, test.want); err != nil {
t.Errorf("%s: %v", name, err)
continue
}
// Set and check the value.
name += " (cleared)"
proto.ClearExtension(msg, test.ext)
if err := checkVal(test, msg, test.def); err != nil {
t.Errorf("%s: %v", name, err)
}
}
}
func TestExtensionsRoundTrip(t *testing.T) {
msg := &pb.MyMessage{}
ext1 := &pb.Ext{
Data: proto.String("hi"),
}
ext2 := &pb.Ext{
Data: proto.String("there"),
}
exists := proto.HasExtension(msg, pb.E_Ext_More)
if exists {
t.Error("Extension More present unexpectedly")
}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext1); err != nil {
t.Error(err)
}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext2); err != nil {
t.Error(err)
}
e, err := proto.GetExtension(msg, pb.E_Ext_More)
if err != nil {
t.Error(err)
}
x, ok := e.(*pb.Ext)
if !ok {
t.Errorf("e has type %T, expected testdata.Ext", e)
} else if *x.Data != "there" {
t.Errorf("SetExtension failed to overwrite, got %+v, not 'there'", x)
}
proto.ClearExtension(msg, pb.E_Ext_More)
if _, err = proto.GetExtension(msg, pb.E_Ext_More); err != proto.ErrMissingExtension {
t.Errorf("got %v, expected ErrMissingExtension", e)
}
if _, err := proto.GetExtension(msg, pb.E_X215); err == nil {
t.Error("expected bad extension error, got nil")
}
if err := proto.SetExtension(msg, pb.E_X215, 12); err == nil {
t.Error("expected extension err")
}
if err := proto.SetExtension(msg, pb.E_Ext_More, 12); err == nil {
t.Error("expected some sort of type mismatch error, got nil")
}
}
func TestNilExtension(t *testing.T) {
msg := &pb.MyMessage{
Count: proto.Int32(1),
}
if err := proto.SetExtension(msg, pb.E_Ext_Text, proto.String("hello")); err != nil {
t.Fatal(err)
}
if err := proto.SetExtension(msg, pb.E_Ext_More, (*pb.Ext)(nil)); err == nil {
t.Error("expected SetExtension to fail due to a nil extension")
} else if want := "proto: SetExtension called with nil value of type *testdata.Ext"; err.Error() != want {
t.Errorf("expected error %v, got %v", want, err)
}
// Note: if the behavior of Marshal is ever changed to ignore nil extensions, update
// this test to verify that E_Ext_Text is properly propagated through marshal->unmarshal.
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/lib.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/*
Package proto converts data structures to and from the wire format of
protocol buffers. It works in concert with the Go source code generated
for .proto files by the protocol compiler.
A summary of the properties of the protocol buffer interface
for a protocol buffer variable v:
- Names are turned from camel_case to CamelCase for export.
- There are no methods on v to set fields; just treat
them as structure fields.
- There are getters that return a field's value if set,
and return the field's default value if unset.
The getters work even if the receiver is a nil message.
- The zero value for a struct is its correct initialization state.
All desired fields must be set before marshaling.
- A Reset() method will restore a protobuf struct to its zero state.
- Non-repeated fields are pointers to the values; nil means unset.
That is, optional or required field int32 f becomes F *int32.
- Repeated fields are slices.
- Helper functions are available to aid the setting of fields.
msg.Foo = proto.String("hello") // set field
- Constants are defined to hold the default values of all fields that
have them. They have the form Default_StructName_FieldName.
Because the getter methods handle defaulted values,
direct use of these constants should be rare.
- Enums are given type names and maps from names to values.
Enum values are prefixed by the enclosing message's name, or by the
enum's type name if it is a top-level enum. Enum types have a String
method, and a Enum method to assist in message construction.
- Nested messages, groups and enums have type names prefixed with the name of
the surrounding message type.
- Extensions are given descriptor names that start with E_,
followed by an underscore-delimited list of the nested messages
that contain it (if any) followed by the CamelCased name of the
extension field itself. HasExtension, ClearExtension, GetExtension
and SetExtension are functions for manipulating extensions.
- Oneof field sets are given a single field in their message,
with distinguished wrapper types for each possible field value.
- Marshal and Unmarshal are functions to encode and decode the wire format.
The simplest way to describe this is to see an example.
Given file test.proto, containing
package example;
enum FOO { X = 17; }
message Test {
required string label = 1;
optional int32 type = 2 [default=77];
repeated int64 reps = 3;
optional group OptionalGroup = 4 {
required string RequiredField = 5;
}
oneof union {
int32 number = 6;
string name = 7;
}
}
The resulting file, test.pb.go, is:
package example
import proto "github.com/gogo/protobuf/proto"
import math "math"
type FOO int32
const (
FOO_X FOO = 17
)
var FOO_name = map[int32]string{
17: "X",
}
var FOO_value = map[string]int32{
"X": 17,
}
func (x FOO) Enum() *FOO {
p := new(FOO)
*p = x
return p
}
func (x FOO) String() string {
return proto.EnumName(FOO_name, int32(x))
}
func (x *FOO) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(FOO_value, data)
if err != nil {
return err
}
*x = FOO(value)
return nil
}
type Test struct {
Label *string `protobuf:"bytes,1,req,name=label" json:"label,omitempty"`
Type *int32 `protobuf:"varint,2,opt,name=type,def=77" json:"type,omitempty"`
Reps []int64 `protobuf:"varint,3,rep,name=reps" json:"reps,omitempty"`
Optionalgroup *Test_OptionalGroup `protobuf:"group,4,opt,name=OptionalGroup" json:"optionalgroup,omitempty"`
// Types that are valid to be assigned to Union:
// *Test_Number
// *Test_Name
Union isTest_Union `protobuf_oneof:"union"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Test) Reset() { *m = Test{} }
func (m *Test) String() string { return proto.CompactTextString(m) }
func (*Test) ProtoMessage() {}
type isTest_Union interface {
isTest_Union()
}
type Test_Number struct {
Number int32 `protobuf:"varint,6,opt,name=number"`
}
type Test_Name struct {
Name string `protobuf:"bytes,7,opt,name=name"`
}
func (*Test_Number) isTest_Union() {}
func (*Test_Name) isTest_Union() {}
func (m *Test) GetUnion() isTest_Union {
if m != nil {
return m.Union
}
return nil
}
const Default_Test_Type int32 = 77
func (m *Test) GetLabel() string {
if m != nil && m.Label != nil {
return *m.Label
}
return ""
}
func (m *Test) GetType() int32 {
if m != nil && m.Type != nil {
return *m.Type
}
return Default_Test_Type
}
func (m *Test) GetOptionalgroup() *Test_OptionalGroup {
if m != nil {
return m.Optionalgroup
}
return nil
}
type Test_OptionalGroup struct {
RequiredField *string `protobuf:"bytes,5,req" json:"RequiredField,omitempty"`
}
func (m *Test_OptionalGroup) Reset() { *m = Test_OptionalGroup{} }
func (m *Test_OptionalGroup) String() string { return proto.CompactTextString(m) }
func (m *Test_OptionalGroup) GetRequiredField() string {
if m != nil && m.RequiredField != nil {
return *m.RequiredField
}
return ""
}
func (m *Test) GetNumber() int32 {
if x, ok := m.GetUnion().(*Test_Number); ok {
return x.Number
}
return 0
}
func (m *Test) GetName() string {
if x, ok := m.GetUnion().(*Test_Name); ok {
return x.Name
}
return ""
}
func init() {
proto.RegisterEnum("example.FOO", FOO_name, FOO_value)
}
To create and play with a Test object:
package main
import (
"log"
"github.com/gogo/protobuf/proto"
pb "./example.pb"
)
func main() {
test := &pb.Test{
Label: proto.String("hello"),
Type: proto.Int32(17),
Optionalgroup: &pb.Test_OptionalGroup{
RequiredField: proto.String("good bye"),
},
Union: &pb.Test_Name{"fred"},
}
data, err := proto.Marshal(test)
if err != nil {
log.Fatal("marshaling error: ", err)
}
newTest := &pb.Test{}
err = proto.Unmarshal(data, newTest)
if err != nil {
log.Fatal("unmarshaling error: ", err)
}
// Now test and newTest contain the same data.
if test.GetLabel() != newTest.GetLabel() {
log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel())
}
// Use a type switch to determine which oneof was set.
switch u := test.Union.(type) {
case *pb.Test_Number: // u.Number contains the number.
case *pb.Test_Name: // u.Name contains the string.
}
// etc.
}
*/
package proto
import (
"encoding/json"
"fmt"
"log"
"reflect"
"sort"
"strconv"
"sync"
)
// Message is implemented by generated protocol buffer messages.
type Message interface {
Reset()
String() string
ProtoMessage()
}
// Stats records allocation details about the protocol buffer encoders
// and decoders. Useful for tuning the library itself.
type Stats struct {
Emalloc uint64 // mallocs in encode
Dmalloc uint64 // mallocs in decode
Encode uint64 // number of encodes
Decode uint64 // number of decodes
Chit uint64 // number of cache hits
Cmiss uint64 // number of cache misses
Size uint64 // number of sizes
}
// Set to true to enable stats collection.
const collectStats = false
var stats Stats
// GetStats returns a copy of the global Stats structure.
func GetStats() Stats { return stats }
// A Buffer is a buffer manager for marshaling and unmarshaling
// protocol buffers. It may be reused between invocations to
// reduce memory usage. It is not necessary to use a Buffer;
// the global functions Marshal and Unmarshal create a
// temporary Buffer and are fine for most applications.
type Buffer struct {
buf []byte // encode/decode byte stream
index int // write point
// pools of basic types to amortize allocation.
bools []bool
uint32s []uint32
uint64s []uint64
// extra pools, only used with pointer_reflect.go
int32s []int32
int64s []int64
float32s []float32
float64s []float64
}
// NewBuffer allocates a new Buffer and initializes its internal data to
// the contents of the argument slice.
func NewBuffer(e []byte) *Buffer {
return &Buffer{buf: e}
}
// Reset resets the Buffer, ready for marshaling a new protocol buffer.
func (p *Buffer) Reset() {
p.buf = p.buf[0:0] // for reading/writing
p.index = 0 // for reading
}
// SetBuf replaces the internal buffer with the slice,
// ready for unmarshaling the contents of the slice.
func (p *Buffer) SetBuf(s []byte) {
p.buf = s
p.index = 0
}
// Bytes returns the contents of the Buffer.
func (p *Buffer) Bytes() []byte { return p.buf }
/*
* Helper routines for simplifying the creation of optional fields of basic type.
*/
// Bool is a helper routine that allocates a new bool value
// to store v and returns a pointer to it.
func Bool(v bool) *bool {
return &v
}
// Int32 is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it.
func Int32(v int32) *int32 {
return &v
}
// Int is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it, but unlike Int32
// its argument value is an int.
func Int(v int) *int32 {
p := new(int32)
*p = int32(v)
return p
}
// Int64 is a helper routine that allocates a new int64 value
// to store v and returns a pointer to it.
func Int64(v int64) *int64 {
return &v
}
// Float32 is a helper routine that allocates a new float32 value
// to store v and returns a pointer to it.
func Float32(v float32) *float32 {
return &v
}
// Float64 is a helper routine that allocates a new float64 value
// to store v and returns a pointer to it.
func Float64(v float64) *float64 {
return &v
}
// Uint32 is a helper routine that allocates a new uint32 value
// to store v and returns a pointer to it.
func Uint32(v uint32) *uint32 {
return &v
}
// Uint64 is a helper routine that allocates a new uint64 value
// to store v and returns a pointer to it.
func Uint64(v uint64) *uint64 {
return &v
}
// String is a helper routine that allocates a new string value
// to store v and returns a pointer to it.
func String(v string) *string {
return &v
}
// EnumName is a helper function to simplify printing protocol buffer enums
// by name. Given an enum map and a value, it returns a useful string.
func EnumName(m map[int32]string, v int32) string {
s, ok := m[v]
if ok {
return s
}
return strconv.Itoa(int(v))
}
// UnmarshalJSONEnum is a helper function to simplify recovering enum int values
// from their JSON-encoded representation. Given a map from the enum's symbolic
// names to its int values, and a byte buffer containing the JSON-encoded
// value, it returns an int32 that can be cast to the enum type by the caller.
//
// The function can deal with both JSON representations, numeric and symbolic.
func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) {
if data[0] == '"' {
// New style: enums are strings.
var repr string
if err := json.Unmarshal(data, &repr); err != nil {
return -1, err
}
val, ok := m[repr]
if !ok {
return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr)
}
return val, nil
}
// Old style: enums are ints.
var val int32
if err := json.Unmarshal(data, &val); err != nil {
return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName)
}
return val, nil
}
// DebugPrint dumps the encoded data in b in a debugging format with a header
// including the string s. Used in testing but made available for general debugging.
func (p *Buffer) DebugPrint(s string, b []byte) {
var u uint64
obuf := p.buf
index := p.index
p.buf = b
p.index = 0
depth := 0
fmt.Printf("\n--- %s ---\n", s)
out:
for {
for i := 0; i < depth; i++ {
fmt.Print(" ")
}
index := p.index
if index == len(p.buf) {
break
}
op, err := p.DecodeVarint()
if err != nil {
fmt.Printf("%3d: fetching op err %v\n", index, err)
break out
}
tag := op >> 3
wire := op & 7
switch wire {
default:
fmt.Printf("%3d: t=%3d unknown wire=%d\n",
index, tag, wire)
break out
case WireBytes:
var r []byte
r, err = p.DecodeRawBytes(false)
if err != nil {
break out
}
fmt.Printf("%3d: t=%3d bytes [%d]", index, tag, len(r))
if len(r) <= 6 {
for i := 0; i < len(r); i++ {
fmt.Printf(" %.2x", r[i])
}
} else {
for i := 0; i < 3; i++ {
fmt.Printf(" %.2x", r[i])
}
fmt.Printf(" ..")
for i := len(r) - 3; i < len(r); i++ {
fmt.Printf(" %.2x", r[i])
}
}
fmt.Printf("\n")
case WireFixed32:
u, err = p.DecodeFixed32()
if err != nil {
fmt.Printf("%3d: t=%3d fix32 err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d fix32 %d\n", index, tag, u)
case WireFixed64:
u, err = p.DecodeFixed64()
if err != nil {
fmt.Printf("%3d: t=%3d fix64 err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d fix64 %d\n", index, tag, u)
case WireVarint:
u, err = p.DecodeVarint()
if err != nil {
fmt.Printf("%3d: t=%3d varint err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d varint %d\n", index, tag, u)
case WireStartGroup:
fmt.Printf("%3d: t=%3d start\n", index, tag)
depth++
case WireEndGroup:
depth--
fmt.Printf("%3d: t=%3d end\n", index, tag)
}
}
if depth != 0 {
fmt.Printf("%3d: start-end not balanced %d\n", p.index, depth)
}
fmt.Printf("\n")
p.buf = obuf
p.index = index
}
// SetDefaults sets unset protocol buffer fields to their default values.
// It only modifies fields that are both unset and have defined defaults.
// It recursively sets default values in any non-nil sub-messages.
func SetDefaults(pb Message) {
setDefaults(reflect.ValueOf(pb), true, false)
}
// v is a pointer to a struct.
func setDefaults(v reflect.Value, recur, zeros bool) {
v = v.Elem()
defaultMu.RLock()
dm, ok := defaults[v.Type()]
defaultMu.RUnlock()
if !ok {
dm = buildDefaultMessage(v.Type())
defaultMu.Lock()
defaults[v.Type()] = dm
defaultMu.Unlock()
}
for _, sf := range dm.scalars {
f := v.Field(sf.index)
if !f.IsNil() {
// field already set
continue
}
dv := sf.value
if dv == nil && !zeros {
// no explicit default, and don't want to set zeros
continue
}
fptr := f.Addr().Interface() // **T
// TODO: Consider batching the allocations we do here.
switch sf.kind {
case reflect.Bool:
b := new(bool)
if dv != nil {
*b = dv.(bool)
}
*(fptr.(**bool)) = b
case reflect.Float32:
f := new(float32)
if dv != nil {
*f = dv.(float32)
}
*(fptr.(**float32)) = f
case reflect.Float64:
f := new(float64)
if dv != nil {
*f = dv.(float64)
}
*(fptr.(**float64)) = f
case reflect.Int32:
// might be an enum
if ft := f.Type(); ft != int32PtrType {
// enum
f.Set(reflect.New(ft.Elem()))
if dv != nil {
f.Elem().SetInt(int64(dv.(int32)))
}
} else {
// int32 field
i := new(int32)
if dv != nil {
*i = dv.(int32)
}
*(fptr.(**int32)) = i
}
case reflect.Int64:
i := new(int64)
if dv != nil {
*i = dv.(int64)
}
*(fptr.(**int64)) = i
case reflect.String:
s := new(string)
if dv != nil {
*s = dv.(string)
}
*(fptr.(**string)) = s
case reflect.Uint8:
// exceptional case: []byte
var b []byte
if dv != nil {
db := dv.([]byte)
b = make([]byte, len(db))
copy(b, db)
} else {
b = []byte{}
}
*(fptr.(*[]byte)) = b
case reflect.Uint32:
u := new(uint32)
if dv != nil {
*u = dv.(uint32)
}
*(fptr.(**uint32)) = u
case reflect.Uint64:
u := new(uint64)
if dv != nil {
*u = dv.(uint64)
}
*(fptr.(**uint64)) = u
default:
log.Printf("proto: can't set default for field %v (sf.kind=%v)", f, sf.kind)
}
}
for _, ni := range dm.nested {
f := v.Field(ni)
// f is *T or []*T or map[T]*T
switch f.Kind() {
case reflect.Ptr:
if f.IsNil() {
continue
}
setDefaults(f, recur, zeros)
case reflect.Slice:
for i := 0; i < f.Len(); i++ {
e := f.Index(i)
if e.IsNil() {
continue
}
setDefaults(e, recur, zeros)
}
case reflect.Map:
for _, k := range f.MapKeys() {
e := f.MapIndex(k)
if e.IsNil() {
continue
}
setDefaults(e, recur, zeros)
}
}
}
}
var (
// defaults maps a protocol buffer struct type to a slice of the fields,
// with its scalar fields set to their proto-declared non-zero default values.
defaultMu sync.RWMutex
defaults = make(map[reflect.Type]defaultMessage)
int32PtrType = reflect.TypeOf((*int32)(nil))
)
// defaultMessage represents information about the default values of a message.
type defaultMessage struct {
scalars []scalarField
nested []int // struct field index of nested messages
}
type scalarField struct {
index int // struct field index
kind reflect.Kind // element type (the T in *T or []T)
value interface{} // the proto-declared default value, or nil
}
// t is a struct type.
func buildDefaultMessage(t reflect.Type) (dm defaultMessage) {
sprop := GetProperties(t)
for _, prop := range sprop.Prop {
fi, ok := sprop.decoderTags.get(prop.Tag)
if !ok {
// XXX_unrecognized
continue
}
ft := t.Field(fi).Type
sf, nested, err := fieldDefault(ft, prop)
switch {
case err != nil:
log.Print(err)
case nested:
dm.nested = append(dm.nested, fi)
case sf != nil:
sf.index = fi
dm.scalars = append(dm.scalars, *sf)
}
}
return dm
}
// fieldDefault returns the scalarField for field type ft.
// sf will be nil if the field can not have a default.
// nestedMessage will be true if this is a nested message.
// Note that sf.index is not set on return.
func fieldDefault(ft reflect.Type, prop *Properties) (sf *scalarField, nestedMessage bool, err error) {
var canHaveDefault bool
switch ft.Kind() {
case reflect.Ptr:
if ft.Elem().Kind() == reflect.Struct {
nestedMessage = true
} else {
canHaveDefault = true // proto2 scalar field
}
case reflect.Slice:
switch ft.Elem().Kind() {
case reflect.Ptr:
nestedMessage = true // repeated message
case reflect.Uint8:
canHaveDefault = true // bytes field
}
case reflect.Map:
if ft.Elem().Kind() == reflect.Ptr {
nestedMessage = true // map with message values
}
}
if !canHaveDefault {
if nestedMessage {
return nil, true, nil
}
return nil, false, nil
}
// We now know that ft is a pointer or slice.
sf = &scalarField{kind: ft.Elem().Kind()}
// scalar fields without defaults
if !prop.HasDefault {
return sf, false, nil
}
// a scalar field: either *T or []byte
switch ft.Elem().Kind() {
case reflect.Bool:
x, err := strconv.ParseBool(prop.Default)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default bool %q: %v", prop.Default, err)
}
sf.value = x
case reflect.Float32:
x, err := strconv.ParseFloat(prop.Default, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default float32 %q: %v", prop.Default, err)
}
sf.value = float32(x)
case reflect.Float64:
x, err := strconv.ParseFloat(prop.Default, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default float64 %q: %v", prop.Default, err)
}
sf.value = x
case reflect.Int32:
x, err := strconv.ParseInt(prop.Default, 10, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default int32 %q: %v", prop.Default, err)
}
sf.value = int32(x)
case reflect.Int64:
x, err := strconv.ParseInt(prop.Default, 10, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default int64 %q: %v", prop.Default, err)
}
sf.value = x
case reflect.String:
sf.value = prop.Default
case reflect.Uint8:
// []byte (not *uint8)
sf.value = []byte(prop.Default)
case reflect.Uint32:
x, err := strconv.ParseUint(prop.Default, 10, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default uint32 %q: %v", prop.Default, err)
}
sf.value = uint32(x)
case reflect.Uint64:
x, err := strconv.ParseUint(prop.Default, 10, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default uint64 %q: %v", prop.Default, err)
}
sf.value = x
default:
return nil, false, fmt.Errorf("proto: unhandled def kind %v", ft.Elem().Kind())
}
return sf, false, nil
}
// Map fields may have key types of non-float scalars, strings and enums.
// The easiest way to sort them in some deterministic order is to use fmt.
// If this turns out to be inefficient we can always consider other options,
// such as doing a Schwartzian transform.
func mapKeys(vs []reflect.Value) sort.Interface {
s := mapKeySorter{
vs: vs,
// default Less function: textual comparison
less: func(a, b reflect.Value) bool {
return fmt.Sprint(a.Interface()) < fmt.Sprint(b.Interface())
},
}
// Type specialization per https://developers.google.com/protocol-buffers/docs/proto#maps;
// numeric keys are sorted numerically.
if len(vs) == 0 {
return s
}
switch vs[0].Kind() {
case reflect.Int32, reflect.Int64:
s.less = func(a, b reflect.Value) bool { return a.Int() < b.Int() }
case reflect.Uint32, reflect.Uint64:
s.less = func(a, b reflect.Value) bool { return a.Uint() < b.Uint() }
}
return s
}
type mapKeySorter struct {
vs []reflect.Value
less func(a, b reflect.Value) bool
}
func (s mapKeySorter) Len() int { return len(s.vs) }
func (s mapKeySorter) Swap(i, j int) { s.vs[i], s.vs[j] = s.vs[j], s.vs[i] }
func (s mapKeySorter) Less(i, j int) bool {
return s.less(s.vs[i], s.vs[j])
}
// isProto3Zero reports whether v is a zero proto3 value.
func isProto3Zero(v reflect.Value) bool {
switch v.Kind() {
case reflect.Bool:
return !v.Bool()
case reflect.Int32, reflect.Int64:
return v.Int() == 0
case reflect.Uint32, reflect.Uint64:
return v.Uint() == 0
case reflect.Float32, reflect.Float64:
return v.Float() == 0
case reflect.String:
return v.String() == ""
}
return false
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/lib_gogo.go 0 → 100644
View file @ 8f79df77
// Copyright (c) 2013, Vastech SA (PTY) LTD. All rights reserved.
// http://github.com/gogo/protobuf/gogoproto
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
import (
"encoding/json"
"strconv"
)
func MarshalJSONEnum(m map[int32]string, value int32) ([]byte, error) {
s, ok := m[value]
if !ok {
s = strconv.Itoa(int(value))
}
return json.Marshal(s)
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/message_set.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Support for message sets.
*/
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"reflect"
"sort"
)
// ErrNoMessageTypeId occurs when a protocol buffer does not have a message type ID.
// A message type ID is required for storing a protocol buffer in a message set.
var ErrNoMessageTypeId = errors.New("proto does not have a message type ID")
// The first two types (_MessageSet_Item and MessageSet)
// model what the protocol compiler produces for the following protocol message:
// message MessageSet {
// repeated group Item = 1 {
// required int32 type_id = 2;
// required string message = 3;
// };
// }
// That is the MessageSet wire format. We can't use a proto to generate these
// because that would introduce a circular dependency between it and this package.
//
// When a proto1 proto has a field that looks like:
// optional message<MessageSet> info = 3;
// the protocol compiler produces a field in the generated struct that looks like:
// Info *_proto_.MessageSet `protobuf:"bytes,3,opt,name=info"`
// The package is automatically inserted so there is no need for that proto file to
// import this package.
type _MessageSet_Item struct {
TypeId *int32 `protobuf:"varint,2,req,name=type_id"`
Message []byte `protobuf:"bytes,3,req,name=message"`
}
type MessageSet struct {
Item []*_MessageSet_Item `protobuf:"group,1,rep"`
XXX_unrecognized []byte
// TODO: caching?
}
// Make sure MessageSet is a Message.
var _ Message = (*MessageSet)(nil)
// messageTypeIder is an interface satisfied by a protocol buffer type
// that may be stored in a MessageSet.
type messageTypeIder interface {
MessageTypeId() int32
}
func (ms *MessageSet) find(pb Message) *_MessageSet_Item {
mti, ok := pb.(messageTypeIder)
if !ok {
return nil
}
id := mti.MessageTypeId()
for _, item := range ms.Item {
if *item.TypeId == id {
return item
}
}
return nil
}
func (ms *MessageSet) Has(pb Message) bool {
if ms.find(pb) != nil {
return true
}
return false
}
func (ms *MessageSet) Unmarshal(pb Message) error {
if item := ms.find(pb); item != nil {
return Unmarshal(item.Message, pb)
}
if _, ok := pb.(messageTypeIder); !ok {
return ErrNoMessageTypeId
}
return nil // TODO: return error instead?
}
func (ms *MessageSet) Marshal(pb Message) error {
msg, err := Marshal(pb)
if err != nil {
return err
}
if item := ms.find(pb); item != nil {
// reuse existing item
item.Message = msg
return nil
}
mti, ok := pb.(messageTypeIder)
if !ok {
return ErrNoMessageTypeId
}
mtid := mti.MessageTypeId()
ms.Item = append(ms.Item, &_MessageSet_Item{
TypeId: &mtid,
Message: msg,
})
return nil
}
func (ms *MessageSet) Reset() { *ms = MessageSet{} }
func (ms *MessageSet) String() string { return CompactTextString(ms) }
func (*MessageSet) ProtoMessage() {}
// Support for the message_set_wire_format message option.
func skipVarint(buf []byte) []byte {
i := 0
for ; buf[i]&0x80 != 0; i++ {
}
return buf[i+1:]
}
// MarshalMessageSet encodes the extension map represented by m in the message set wire format.
// It is called by generated Marshal methods on protocol buffer messages with the message_set_wire_format option.
func MarshalMessageSet(m map[int32]Extension) ([]byte, error) {
if err := encodeExtensionMap(m); err != nil {
return nil, err
}
// Sort extension IDs to provide a deterministic encoding.
// See also enc_map in encode.go.
ids := make([]int, 0, len(m))
for id := range m {
ids = append(ids, int(id))
}
sort.Ints(ids)
ms := &MessageSet{Item: make([]*_MessageSet_Item, 0, len(m))}
for _, id := range ids {
e := m[int32(id)]
// Remove the wire type and field number varint, as well as the length varint.
msg := skipVarint(skipVarint(e.enc))
ms.Item = append(ms.Item, &_MessageSet_Item{
TypeId: Int32(int32(id)),
Message: msg,
})
}
return Marshal(ms)
}
// UnmarshalMessageSet decodes the extension map encoded in buf in the message set wire format.
// It is called by generated Unmarshal methods on protocol buffer messages with the message_set_wire_format option.
func UnmarshalMessageSet(buf []byte, m map[int32]Extension) error {
ms := new(MessageSet)
if err := Unmarshal(buf, ms); err != nil {
return err
}
for _, item := range ms.Item {
id := *item.TypeId
msg := item.Message
// Restore wire type and field number varint, plus length varint.
// Be careful to preserve duplicate items.
b := EncodeVarint(uint64(id)<<3 | WireBytes)
if ext, ok := m[id]; ok {
// Existing data; rip off the tag and length varint
// so we join the new data correctly.
// We can assume that ext.enc is set because we are unmarshaling.
o := ext.enc[len(b):] // skip wire type and field number
_, n := DecodeVarint(o) // calculate length of length varint
o = o[n:] // skip length varint
msg = append(o, msg...) // join old data and new data
}
b = append(b, EncodeVarint(uint64(len(msg)))...)
b = append(b, msg...)
m[id] = Extension{enc: b}
}
return nil
}
// MarshalMessageSetJSON encodes the extension map represented by m in JSON format.
// It is called by generated MarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
func MarshalMessageSetJSON(m map[int32]Extension) ([]byte, error) {
var b bytes.Buffer
b.WriteByte('{')
// Process the map in key order for deterministic output.
ids := make([]int32, 0, len(m))
for id := range m {
ids = append(ids, id)
}
sort.Sort(int32Slice(ids)) // int32Slice defined in text.go
for i, id := range ids {
ext := m[id]
if i > 0 {
b.WriteByte(',')
}
msd, ok := messageSetMap[id]
if !ok {
// Unknown type; we can't render it, so skip it.
continue
}
fmt.Fprintf(&b, `"[%s]":`, msd.name)
x := ext.value
if x == nil {
x = reflect.New(msd.t.Elem()).Interface()
if err := Unmarshal(ext.enc, x.(Message)); err != nil {
return nil, err
}
}
d, err := json.Marshal(x)
if err != nil {
return nil, err
}
b.Write(d)
}
b.WriteByte('}')
return b.Bytes(), nil
}
// UnmarshalMessageSetJSON decodes the extension map encoded in buf in JSON format.
// It is called by generated UnmarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
func UnmarshalMessageSetJSON(buf []byte, m map[int32]Extension) error {
// Common-case fast path.
if len(buf) == 0 || bytes.Equal(buf, []byte("{}")) {
return nil
}
// This is fairly tricky, and it's not clear that it is needed.
return errors.New("TODO: UnmarshalMessageSetJSON not yet implemented")
}
// A global registry of types that can be used in a MessageSet.
var messageSetMap = make(map[int32]messageSetDesc)
type messageSetDesc struct {
t reflect.Type // pointer to struct
name string
}
// RegisterMessageSetType is called from the generated code.
func RegisterMessageSetType(m Message, fieldNum int32, name string) {
messageSetMap[fieldNum] = messageSetDesc{
t: reflect.TypeOf(m),
name: name,
}
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/message_set_test.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2014 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
import (
"bytes"
"testing"
)
func TestUnmarshalMessageSetWithDuplicate(t *testing.T) {
// Check that a repeated message set entry will be concatenated.
in := &MessageSet{
Item: []*_MessageSet_Item{
{TypeId: Int32(12345), Message: []byte("hoo")},
{TypeId: Int32(12345), Message: []byte("hah")},
},
}
b, err := Marshal(in)
if err != nil {
t.Fatalf("Marshal: %v", err)
}
t.Logf("Marshaled bytes: %q", b)
m := make(map[int32]Extension)
if err := UnmarshalMessageSet(b, m); err != nil {
t.Fatalf("UnmarshalMessageSet: %v", err)
}
ext, ok := m[12345]
if !ok {
t.Fatalf("Didn't retrieve extension 12345; map is %v", m)
}
// Skip wire type/field number and length varints.
got := skipVarint(skipVarint(ext.enc))
if want := []byte("hoohah"); !bytes.Equal(got, want) {
t.Errorf("Combined extension is %q, want %q", got, want)
}
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/pointer_reflect.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// +build appengine
// This file contains an implementation of proto field accesses using package reflect.
// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can
// be used on App Engine.
package proto
import (
"math"
"reflect"
)
// A structPointer is a pointer to a struct.
type structPointer struct {
v reflect.Value
}
// toStructPointer returns a structPointer equivalent to the given reflect value.
// The reflect value must itself be a pointer to a struct.
func toStructPointer(v reflect.Value) structPointer {
return structPointer{v}
}
// IsNil reports whether p is nil.
func structPointer_IsNil(p structPointer) bool {
return p.v.IsNil()
}
// Interface returns the struct pointer as an interface value.
func structPointer_Interface(p structPointer, _ reflect.Type) interface{} {
return p.v.Interface()
}
// A field identifies a field in a struct, accessible from a structPointer.
// In this implementation, a field is identified by the sequence of field indices
// passed to reflect's FieldByIndex.
type field []int
// toField returns a field equivalent to the given reflect field.
func toField(f *reflect.StructField) field {
return f.Index
}
// invalidField is an invalid field identifier.
var invalidField = field(nil)
// IsValid reports whether the field identifier is valid.
func (f field) IsValid() bool { return f != nil }
// field returns the given field in the struct as a reflect value.
func structPointer_field(p structPointer, f field) reflect.Value {
// Special case: an extension map entry with a value of type T
// passes a *T to the struct-handling code with a zero field,
// expecting that it will be treated as equivalent to *struct{ X T },
// which has the same memory layout. We have to handle that case
// specially, because reflect will panic if we call FieldByIndex on a
// non-struct.
if f == nil {
return p.v.Elem()
}
return p.v.Elem().FieldByIndex(f)
}
// ifield returns the given field in the struct as an interface value.
func structPointer_ifield(p structPointer, f field) interface{} {
return structPointer_field(p, f).Addr().Interface()
}
// Bytes returns the address of a []byte field in the struct.
func structPointer_Bytes(p structPointer, f field) *[]byte {
return structPointer_ifield(p, f).(*[]byte)
}
// BytesSlice returns the address of a [][]byte field in the struct.
func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
return structPointer_ifield(p, f).(*[][]byte)
}
// Bool returns the address of a *bool field in the struct.
func structPointer_Bool(p structPointer, f field) **bool {
return structPointer_ifield(p, f).(**bool)
}
// BoolVal returns the address of a bool field in the struct.
func structPointer_BoolVal(p structPointer, f field) *bool {
return structPointer_ifield(p, f).(*bool)
}
// BoolSlice returns the address of a []bool field in the struct.
func structPointer_BoolSlice(p structPointer, f field) *[]bool {
return structPointer_ifield(p, f).(*[]bool)
}
// String returns the address of a *string field in the struct.
func structPointer_String(p structPointer, f field) **string {
return structPointer_ifield(p, f).(**string)
}
// StringVal returns the address of a string field in the struct.
func structPointer_StringVal(p structPointer, f field) *string {
return structPointer_ifield(p, f).(*string)
}
// StringSlice returns the address of a []string field in the struct.
func structPointer_StringSlice(p structPointer, f field) *[]string {
return structPointer_ifield(p, f).(*[]string)
}
// ExtMap returns the address of an extension map field in the struct.
func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
return structPointer_ifield(p, f).(*map[int32]Extension)
}
// NewAt returns the reflect.Value for a pointer to a field in the struct.
func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
return structPointer_field(p, f).Addr()
}
// SetStructPointer writes a *struct field in the struct.
func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
structPointer_field(p, f).Set(q.v)
}
// GetStructPointer reads a *struct field in the struct.
func structPointer_GetStructPointer(p structPointer, f field) structPointer {
return structPointer{structPointer_field(p, f)}
}
// StructPointerSlice the address of a []*struct field in the struct.
func structPointer_StructPointerSlice(p structPointer, f field) structPointerSlice {
return structPointerSlice{structPointer_field(p, f)}
}
// A structPointerSlice represents the address of a slice of pointers to structs
// (themselves messages or groups). That is, v.Type() is *[]*struct{...}.
type structPointerSlice struct {
v reflect.Value
}
func (p structPointerSlice) Len() int { return p.v.Len() }
func (p structPointerSlice) Index(i int) structPointer { return structPointer{p.v.Index(i)} }
func (p structPointerSlice) Append(q structPointer) {
p.v.Set(reflect.Append(p.v, q.v))
}
var (
int32Type = reflect.TypeOf(int32(0))
uint32Type = reflect.TypeOf(uint32(0))
float32Type = reflect.TypeOf(float32(0))
int64Type = reflect.TypeOf(int64(0))
uint64Type = reflect.TypeOf(uint64(0))
float64Type = reflect.TypeOf(float64(0))
)
// A word32 represents a field of type *int32, *uint32, *float32, or *enum.
// That is, v.Type() is *int32, *uint32, *float32, or *enum and v is assignable.
type word32 struct {
v reflect.Value
}
// IsNil reports whether p is nil.
func word32_IsNil(p word32) bool {
return p.v.IsNil()
}
// Set sets p to point at a newly allocated word with bits set to x.
func word32_Set(p word32, o *Buffer, x uint32) {
t := p.v.Type().Elem()
switch t {
case int32Type:
if len(o.int32s) == 0 {
o.int32s = make([]int32, uint32PoolSize)
}
o.int32s[0] = int32(x)
p.v.Set(reflect.ValueOf(&o.int32s[0]))
o.int32s = o.int32s[1:]
return
case uint32Type:
if len(o.uint32s) == 0 {
o.uint32s = make([]uint32, uint32PoolSize)
}
o.uint32s[0] = x
p.v.Set(reflect.ValueOf(&o.uint32s[0]))
o.uint32s = o.uint32s[1:]
return
case float32Type:
if len(o.float32s) == 0 {
o.float32s = make([]float32, uint32PoolSize)
}
o.float32s[0] = math.Float32frombits(x)
p.v.Set(reflect.ValueOf(&o.float32s[0]))
o.float32s = o.float32s[1:]
return
}
// must be enum
p.v.Set(reflect.New(t))
p.v.Elem().SetInt(int64(int32(x)))
}
// Get gets the bits pointed at by p, as a uint32.
func word32_Get(p word32) uint32 {
elem := p.v.Elem()
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32 returns a reference to a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32(p structPointer, f field) word32 {
return word32{structPointer_field(p, f)}
}
// A word32Val represents a field of type int32, uint32, float32, or enum.
// That is, v.Type() is int32, uint32, float32, or enum and v is assignable.
type word32Val struct {
v reflect.Value
}
// Set sets *p to x.
func word32Val_Set(p word32Val, x uint32) {
switch p.v.Type() {
case int32Type:
p.v.SetInt(int64(x))
return
case uint32Type:
p.v.SetUint(uint64(x))
return
case float32Type:
p.v.SetFloat(float64(math.Float32frombits(x)))
return
}
// must be enum
p.v.SetInt(int64(int32(x)))
}
// Get gets the bits pointed at by p, as a uint32.
func word32Val_Get(p word32Val) uint32 {
elem := p.v
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32Val returns a reference to a int32, uint32, float32, or enum field in the struct.
func structPointer_Word32Val(p structPointer, f field) word32Val {
return word32Val{structPointer_field(p, f)}
}
// A word32Slice is a slice of 32-bit values.
// That is, v.Type() is []int32, []uint32, []float32, or []enum.
type word32Slice struct {
v reflect.Value
}
func (p word32Slice) Append(x uint32) {
n, m := p.v.Len(), p.v.Cap()
if n < m {
p.v.SetLen(n + 1)
} else {
t := p.v.Type().Elem()
p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
}
elem := p.v.Index(n)
switch elem.Kind() {
case reflect.Int32:
elem.SetInt(int64(int32(x)))
case reflect.Uint32:
elem.SetUint(uint64(x))
case reflect.Float32:
elem.SetFloat(float64(math.Float32frombits(x)))
}
}
func (p word32Slice) Len() int {
return p.v.Len()
}
func (p word32Slice) Index(i int) uint32 {
elem := p.v.Index(i)
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32Slice returns a reference to a []int32, []uint32, []float32, or []enum field in the struct.
func structPointer_Word32Slice(p structPointer, f field) word32Slice {
return word32Slice{structPointer_field(p, f)}
}
// word64 is like word32 but for 64-bit values.
type word64 struct {
v reflect.Value
}
func word64_Set(p word64, o *Buffer, x uint64) {
t := p.v.Type().Elem()
switch t {
case int64Type:
if len(o.int64s) == 0 {
o.int64s = make([]int64, uint64PoolSize)
}
o.int64s[0] = int64(x)
p.v.Set(reflect.ValueOf(&o.int64s[0]))
o.int64s = o.int64s[1:]
return
case uint64Type:
if len(o.uint64s) == 0 {
o.uint64s = make([]uint64, uint64PoolSize)
}
o.uint64s[0] = x
p.v.Set(reflect.ValueOf(&o.uint64s[0]))
o.uint64s = o.uint64s[1:]
return
case float64Type:
if len(o.float64s) == 0 {
o.float64s = make([]float64, uint64PoolSize)
}
o.float64s[0] = math.Float64frombits(x)
p.v.Set(reflect.ValueOf(&o.float64s[0]))
o.float64s = o.float64s[1:]
return
}
panic("unreachable")
}
func word64_IsNil(p word64) bool {
return p.v.IsNil()
}
func word64_Get(p word64) uint64 {
elem := p.v.Elem()
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return elem.Uint()
case reflect.Float64:
return math.Float64bits(elem.Float())
}
panic("unreachable")
}
func structPointer_Word64(p structPointer, f field) word64 {
return word64{structPointer_field(p, f)}
}
// word64Val is like word32Val but for 64-bit values.
type word64Val struct {
v reflect.Value
}
func word64Val_Set(p word64Val, o *Buffer, x uint64) {
switch p.v.Type() {
case int64Type:
p.v.SetInt(int64(x))
return
case uint64Type:
p.v.SetUint(x)
return
case float64Type:
p.v.SetFloat(math.Float64frombits(x))
return
}
panic("unreachable")
}
func word64Val_Get(p word64Val) uint64 {
elem := p.v
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return elem.Uint()
case reflect.Float64:
return math.Float64bits(elem.Float())
}
panic("unreachable")
}
func structPointer_Word64Val(p structPointer, f field) word64Val {
return word64Val{structPointer_field(p, f)}
}
type word64Slice struct {
v reflect.Value
}
func (p word64Slice) Append(x uint64) {
n, m := p.v.Len(), p.v.Cap()
if n < m {
p.v.SetLen(n + 1)
} else {
t := p.v.Type().Elem()
p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
}
elem := p.v.Index(n)
switch elem.Kind() {
case reflect.Int64:
elem.SetInt(int64(int64(x)))
case reflect.Uint64:
elem.SetUint(uint64(x))
case reflect.Float64:
elem.SetFloat(float64(math.Float64frombits(x)))
}
}
func (p word64Slice) Len() int {
return p.v.Len()
}
func (p word64Slice) Index(i int) uint64 {
elem := p.v.Index(i)
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return uint64(elem.Uint())
case reflect.Float64:
return math.Float64bits(float64(elem.Float()))
}
panic("unreachable")
}
func structPointer_Word64Slice(p structPointer, f field) word64Slice {
return word64Slice{structPointer_field(p, f)}
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/pointer_unsafe.go 0 → 100644
View file @ 8f79df77
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// +build !appengine
// This file contains the implementation of the proto field accesses using package unsafe.
package proto
import (
"reflect"
"unsafe"
)
// NOTE: These type_Foo functions would more idiomatically be methods,
// but Go does not allow methods on pointer types, and we must preserve
// some pointer type for the garbage collector. We use these
// funcs with clunky names as our poor approximation to methods.
//
// An alternative would be
// type structPointer struct { p unsafe.Pointer }
// but that does not registerize as well.
// A structPointer is a pointer to a struct.
type structPointer unsafe.Pointer
// toStructPointer returns a structPointer equivalent to the given reflect value.
func toStructPointer(v reflect.Value) structPointer {
return structPointer(unsafe.Pointer(v.Pointer()))
}
// IsNil reports whether p is nil.
func structPointer_IsNil(p structPointer) bool {
return p == nil
}
// Interface returns the struct pointer, assumed to have element type t,
// as an interface value.
func structPointer_Interface(p structPointer, t reflect.Type) interface{} {
return reflect.NewAt(t, unsafe.Pointer(p)).Interface()
}
// A field identifies a field in a struct, accessible from a structPointer.
// In this implementation, a field is identified by its byte offset from the start of the struct.
type field uintptr
// toField returns a field equivalent to the given reflect field.
func toField(f *reflect.StructField) field {
return field(f.Offset)
}
// invalidField is an invalid field identifier.
const invalidField = ^field(0)
// IsValid reports whether the field identifier is valid.
func (f field) IsValid() bool {
return f != ^field(0)
}
// Bytes returns the address of a []byte field in the struct.
func structPointer_Bytes(p structPointer, f field) *[]byte {
return (*[]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BytesSlice returns the address of a [][]byte field in the struct.
func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
return (*[][]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// Bool returns the address of a *bool field in the struct.
func structPointer_Bool(p structPointer, f field) **bool {
return (**bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BoolVal returns the address of a bool field in the struct.
func structPointer_BoolVal(p structPointer, f field) *bool {
return (*bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BoolSlice returns the address of a []bool field in the struct.
func structPointer_BoolSlice(p structPointer, f field) *[]bool {
return (*[]bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// String returns the address of a *string field in the struct.
func structPointer_String(p structPointer, f field) **string {
return (**string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StringVal returns the address of a string field in the struct.
func structPointer_StringVal(p structPointer, f field) *string {
return (*string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StringSlice returns the address of a []string field in the struct.
func structPointer_StringSlice(p structPointer, f field) *[]string {
return (*[]string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// ExtMap returns the address of an extension map field in the struct.
func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
return (*map[int32]Extension)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// NewAt returns the reflect.Value for a pointer to a field in the struct.
func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
return reflect.NewAt(typ, unsafe.Pointer(uintptr(p)+uintptr(f)))
}
// SetStructPointer writes a *struct field in the struct.
func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
*(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f))) = q
}
// GetStructPointer reads a *struct field in the struct.
func structPointer_GetStructPointer(p structPointer, f field) structPointer {
return *(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StructPointerSlice the address of a []*struct field in the struct.
func structPointer_StructPointerSlice(p structPointer, f field) *structPointerSlice {
return (*structPointerSlice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// A structPointerSlice represents a slice of pointers to structs (themselves submessages or groups).
type structPointerSlice []structPointer
func (v *structPointerSlice) Len() int { return len(*v) }
func (v *structPointerSlice) Index(i int) structPointer { return (*v)[i] }
func (v *structPointerSlice) Append(p structPointer) { *v = append(*v, p) }
// A word32 is the address of a "pointer to 32-bit value" field.
type word32 **uint32
// IsNil reports whether *v is nil.
func word32_IsNil(p word32) bool {
return *p == nil
}
// Set sets *v to point at a newly allocated word set to x.
func word32_Set(p word32, o *Buffer, x uint32) {
if len(o.uint32s) == 0 {
o.uint32s = make([]uint32, uint32PoolSize)
}
o.uint32s[0] = x
*p = &o.uint32s[0]
o.uint32s = o.uint32s[1:]
}
// Get gets the value pointed at by *v.
func word32_Get(p word32) uint32 {
return **p
}
// Word32 returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32(p structPointer, f field) word32 {
return word32((**uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// A word32Val is the address of a 32-bit value field.
type word32Val *uint32
// Set sets *p to x.
func word32Val_Set(p word32Val, x uint32) {
*p = x
}
// Get gets the value pointed at by p.
func word32Val_Get(p word32Val) uint32 {
return *p
}
// Word32Val returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32Val(p structPointer, f field) word32Val {
return word32Val((*uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// A word32Slice is a slice of 32-bit values.
type word32Slice []uint32
func (v *word32Slice) Append(x uint32) { *v = append(*v, x) }
func (v *word32Slice) Len() int { return len(*v) }
func (v *word32Slice) Index(i int) uint32 { return (*v)[i] }
// Word32Slice returns the address of a []int32, []uint32, []float32, or []enum field in the struct.
func structPointer_Word32Slice(p structPointer, f field) *word32Slice {
return (*word32Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// word64 is like word32 but for 64-bit values.
type word64 **uint64
func word64_Set(p word64, o *Buffer, x uint64) {
if len(o.uint64s) == 0 {
o.uint64s = make([]uint64, uint64PoolSize)
}
o.uint64s[0] = x
*p = &o.uint64s[0]
o.uint64s = o.uint64s[1:]
}
func word64_IsNil(p word64) bool {
return *p == nil
}
func word64_Get(p word64) uint64 {
return **p
}
func structPointer_Word64(p structPointer, f field) word64 {
return word64((**uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// word64Val is like word32Val but for 64-bit values.
type word64Val *uint64
func word64Val_Set(p word64Val, o *Buffer, x uint64) {
*p = x
}
func word64Val_Get(p word64Val) uint64 {
return *p
}
func structPointer_Word64Val(p structPointer, f field) word64Val {
return word64Val((*uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// word64Slice is like word32Slice but for 64-bit values.
type word64Slice []uint64
func (v *word64Slice) Append(x uint64) { *v = append(*v, x) }
func (v *word64Slice) Len() int { return len(*v) }
func (v *word64Slice) Index(i int) uint64 { return (*v)[i] }
func structPointer_Word64Slice(p structPointer, f field) *word64Slice {
return (*word64Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/pointer_unsafe_gogo.go 0 → 100644
View file @ 8f79df77
// Copyright (c) 2013, Vastech SA (PTY) LTD. All rights reserved.
// http://github.com/gogo/protobuf/gogoproto
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// +build !appengine
// This file contains the implementation of the proto field accesses using package unsafe.
package proto
import (
"reflect"
"unsafe"
)
func structPointer_InterfaceAt(p structPointer, f field, t reflect.Type) interface{} {
point := unsafe.Pointer(uintptr(p) + uintptr(f))
r := reflect.NewAt(t, point)
return r.Interface()
}
func structPointer_InterfaceRef(p structPointer, f field, t reflect.Type) interface{} {
point := unsafe.Pointer(uintptr(p) + uintptr(f))
r := reflect.NewAt(t, point)
if r.Elem().IsNil() {
return nil
}
return r.Elem().Interface()
}
func copyUintPtr(oldptr, newptr uintptr, size int) {
oldbytes := make([]byte, 0)
oldslice := (*reflect.SliceHeader)(unsafe.Pointer(&oldbytes))
oldslice.Data = oldptr
oldslice.Len = size
oldslice.Cap = size
newbytes := make([]byte, 0)
newslice := (*reflect.SliceHeader)(unsafe.Pointer(&newbytes))
newslice.Data = newptr
newslice.Len = size
newslice.Cap = size
copy(newbytes, oldbytes)
}
func structPointer_Copy(oldptr structPointer, newptr structPointer, size int) {
copyUintPtr(uintptr(oldptr), uintptr(newptr), size)
}
func appendStructPointer(base structPointer, f field, typ reflect.Type) structPointer {
size := typ.Elem().Size()
oldHeader := structPointer_GetSliceHeader(base, f)
newLen := oldHeader.Len + 1
slice := reflect.MakeSlice(typ, newLen, newLen)
bas := toStructPointer(slice)
for i := 0; i < oldHeader.Len; i++ {
newElemptr := uintptr(bas) + uintptr(i)*size
oldElemptr := oldHeader.Data + uintptr(i)*size
copyUintPtr(oldElemptr, newElemptr, int(size))
}
oldHeader.Data = uintptr(bas)
oldHeader.Len = newLen
oldHeader.Cap = newLen
return structPointer(unsafe.Pointer(uintptr(unsafe.Pointer(bas)) + uintptr(uintptr(newLen-1)*size)))
}
func structPointer_FieldPointer(p structPointer, f field) structPointer {
return structPointer(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
func structPointer_GetRefStructPointer(p structPointer, f field) structPointer {
return structPointer((*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
func structPointer_GetSliceHeader(p structPointer, f field) *reflect.SliceHeader {
return (*reflect.SliceHeader)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
func structPointer_Add(p structPointer, size field) structPointer {
return structPointer(unsafe.Pointer(uintptr(p) + uintptr(size)))
}
func structPointer_Len(p structPointer, f field) int {
return len(*(*[]interface{})(unsafe.Pointer(structPointer_GetRefStructPointer(p, f))))
}
vendor/QmfH4HuZyN1p2wQLWWkXC91Z76435xKrBVfLQ2MY8ayG5R/gogo-protobuf/proto/properties.go 0 → 100644
View file @ 8f79df77
// Extensions for Protocol Buffers to create more go like structures.
//
// Copyright (c) 2013, Vastech SA (PTY) LTD. All rights reserved.
// http://github.com/gogo/protobuf/gogoproto
//
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Routines for encoding data into the wire format for protocol buffers.
*/
import (
"fmt"
"os"
"reflect"
"sort"
"strconv"
"strings"
"sync"
)
const debug bool = false
// Constants that identify the encoding of a value on the wire.
const (
WireVarint = 0
WireFixed64 = 1
WireBytes = 2
WireStartGroup = 3
WireEndGroup = 4
WireFixed32 = 5
)
const startSize = 10 // initial slice/string sizes
// Encoders are defined in encode.go
// An encoder outputs the full representation of a field, including its
// tag and encoder type.
type encoder func(p *Buffer, prop *Properties, base structPointer) error
// A valueEncoder encodes a single integer in a particular encoding.
type valueEncoder func(o *Buffer, x uint64) error
// Sizers are defined in encode.go
// A sizer returns the encoded size of a field, including its tag and encoder
// type.
type sizer func(prop *Properties, base structPointer) int
// A valueSizer returns the encoded size of a single integer in a particular
// encoding.
type valueSizer func(x uint64) int
// Decoders are defined in decode.go
// A decoder creates a value from its wire representation.
// Unrecognized subelements are saved in unrec.
type decoder func(p *Buffer, prop *Properties, base structPointer) error
// A valueDecoder decodes a single integer in a particular encoding.
type valueDecoder func(o *Buffer) (x uint64, err error)
// A oneofMarshaler does the marshaling for all oneof fields in a message.
type oneofMarshaler func(Message, *Buffer) error
// A oneofUnmarshaler does the unmarshaling for a oneof field in a message.
type oneofUnmarshaler func(Message, int, int, *Buffer) (bool, error)
// tagMap is an optimization over map[int]int for typical protocol buffer
// use-cases. Encoded protocol buffers are often in tag order with small tag
// numbers.
type tagMap struct {
fastTags []int
slowTags map[int]int
}
// tagMapFastLimit is the upper bound on the tag number that will be stored in
// the tagMap slice rather than its map.
const tagMapFastLimit = 1024
func (p *tagMap) get(t int) (int, bool) {
if t > 0 && t < tagMapFastLimit {
if t >= len(p.fastTags) {
return 0, false
}
fi := p.fastTags[t]
return fi, fi >= 0
}
fi, ok := p.slowTags[t]
return fi, ok
}
func (p *tagMap) put(t int, fi int) {
if t > 0 && t < tagMapFastLimit {
for len(p.fastTags) < t+1 {
p.fastTags = append(p.fastTags, -1)
}
p.fastTags[t] = fi
return
}
if p.slowTags == nil {
p.slowTags = make(map[int]int)
}
p.slowTags[t] = fi
}
// StructProperties represents properties for all the fields of a struct.
// decoderTags and decoderOrigNames should only be used by the decoder.
type StructProperties struct {
Prop []*Properties // properties for each field
reqCount int // required count
decoderTags tagMap // map from proto tag to struct field number
decoderOrigNames map[string]int // map from original name to struct field number
order []int // list of struct field numbers in tag order
unrecField field // field id of the XXX_unrecognized []byte field
extendable bool // is this an extendable proto
oneofMarshaler oneofMarshaler
oneofUnmarshaler oneofUnmarshaler
stype reflect.Type
// OneofTypes contains information about the oneof fields in this message.
// It is keyed by the original name of a field.
OneofTypes map[string]*OneofProperties
}
// OneofProperties represents information about a specific field in a oneof.
type OneofProperties struct {
Type reflect.Type // pointer to generated struct type for this oneof field
Field int // struct field number of the containing oneof in the message
Prop *Properties
}
// Implement the sorting interface so we can sort the fields in tag order, as recommended by the spec.
// See encode.go, (*Buffer).enc_struct.
func (sp *StructProperties) Len() int { return len(sp.order) }
func (sp *StructProperties) Less(i, j int) bool {
return sp.Prop[sp.order[i]].Tag < sp.Prop[sp.order[j]].Tag
}
func (sp *StructProperties) Swap(i, j int) { sp.order[i], sp.order[j] = sp.order[j], sp.order[i] }
// Properties represents the protocol-specific behavior of a single struct field.
type Properties struct {
Name string // name of the field, for error messages
OrigName string // original name before protocol compiler (always set)
Wire string
WireType int
Tag int
Required bool
Optional bool
Repeated bool
Packed bool // relevant for repeated primitives only
Enum string // set for enum types only
proto3 bool // whether this is known to be a proto3 field; set for []byte only
oneof bool // whether this is a oneof field
Default string // default value
HasDefault bool // whether an explicit default was provided
CustomType string
def_uint64 uint64
enc encoder
valEnc valueEncoder // set for bool and numeric types only
field field
tagcode []byte // encoding of EncodeVarint((Tag<<3)|WireType)
tagbuf [8]byte
stype reflect.Type // set for struct types only
sstype reflect.Type // set for slices of structs types only
ctype reflect.Type // set for custom types only
sprop *StructProperties // set for struct types only
isMarshaler bool
isUnmarshaler bool
mtype reflect.Type // set for map types only
mkeyprop *Properties // set for map types only
mvalprop *Properties // set for map types only
size sizer
valSize valueSizer // set for bool and numeric types only
dec decoder
valDec valueDecoder // set for bool and numeric types only
// If this is a packable field, this will be the decoder for the packed version of the field.
packedDec decoder
}
// String formats the properties in the protobuf struct field tag style.
func (p *Properties) String() string {
s := p.Wire
s = ","
s += strconv.Itoa(p.Tag)
if p.Required {
s += ",req"
}
if p.Optional {
s += ",opt"
}
if p.Repeated {
s += ",rep"
}
if p.Packed {
s += ",packed"
}
if p.OrigName != p.Name {
s += ",name=" + p.OrigName
}
if p.proto3 {
s += ",proto3"
}
if p.oneof {
s += ",oneof"
}
if len(p.Enum) > 0 {
s += ",enum=" + p.Enum
}
if p.HasDefault {
s += ",def=" + p.Default
}
return s
}
// Parse populates p by parsing a string in the protobuf struct field tag style.
func (p *Properties) Parse(s string) {
// "bytes,49,opt,name=foo,def=hello!"
fields := strings.Split(s, ",") // breaks def=, but handled below.
if len(fields) < 2 {
fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s)
return
}
p.Wire = fields[0]
switch p.Wire {
case "varint":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeVarint
p.valDec = (*Buffer).DecodeVarint
p.valSize = sizeVarint
case "fixed32":
p.WireType = WireFixed32
p.valEnc = (*Buffer).EncodeFixed32
p.valDec = (*Buffer).DecodeFixed32
p.valSize = sizeFixed32
case "fixed64":
p.WireType = WireFixed64
p.valEnc = (*Buffer).EncodeFixed64
p.valDec = (*Buffer).DecodeFixed64
p.valSize = sizeFixed64
case "zigzag32":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeZigzag32
p.valDec = (*Buffer).DecodeZigzag32
p.valSize = sizeZigzag32
case "zigzag64":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeZigzag64
p.valDec = (*Buffer).DecodeZigzag64
p.valSize = sizeZigzag64
case "bytes", "group":
p.WireType = WireBytes
// no numeric converter for non-numeric types
default:
fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s)
return
}
var err error
p.Tag, err = strconv.Atoi(fields[1])
if err != nil {
return
}
for i := 2; i < len(fields); i++ {
f := fields[i]
switch {
case f == "req":
p.Required = true
case f == "opt":
p.Optional = true
case f == "rep":
p.Repeated = true
case f == "packed":
p.Packed = true
case strings.HasPrefix(f, "name="):
p.OrigName = f[5:]
case strings.HasPrefix(f, "enum="):
p.Enum = f[5:]
case f == "proto3":
p.proto3 = true
case f == "oneof":
p.oneof = true
case strings.HasPrefix(f, "def="):
p.HasDefault = true
p.Default = f[4:] // rest of string
if i+1 < len(fields) {
// Commas aren't escaped, and def is always last.
p.Default += "," + strings.Join(fields[i+1:], ",")
break
}
case strings.HasPrefix(f, "embedded="):
p.OrigName = strings.Split(f, "=")[1]
case strings.HasPrefix(f, "customtype="):
p.CustomType = strings.Split(f, "=")[1]
}
}
}
func logNoSliceEnc(t1, t2 reflect.Type) {
fmt.Fprintf(os.Stderr, "proto: no slice oenc for %T = []%T\n", t1, t2)
}
var protoMessageType = reflect.TypeOf((*Message)(nil)).Elem()
// Initialize the fields for encoding and decoding.
func (p *Properties) setEncAndDec(typ reflect.Type, f *reflect.StructField, lockGetProp bool) {
p.enc = nil
p.dec = nil
p.size = nil
if len(p.CustomType) > 0 {
p.setCustomEncAndDec(typ)
p.setTag(lockGetProp)
return
}
switch t1 := typ; t1.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no coders for %v\n", t1)
// proto3 scalar types
case reflect.Bool:
if p.proto3 {
p.enc = (*Buffer).enc_proto3_bool
p.dec = (*Buffer).dec_proto3_bool
p.size = size_proto3_bool
} else {
p.enc = (*Buffer).enc_ref_bool
p.dec = (*Buffer).dec_proto3_bool
p.size = size_ref_bool
}
case reflect.Int32:
if p.proto3 {
p.enc = (*Buffer).enc_proto3_int32
p.dec = (*Buffer).dec_proto3_int32
p.size = size_proto3_int32
} else {
p.enc = (*Buffer).enc_ref_int32
p.dec = (*Buffer).dec_proto3_int32
p.size = size_ref_int32
}
case reflect.Uint32:
if p.proto3 {
p.enc = (*Buffer).enc_proto3_uint32
p.dec = (*Buffer).dec_proto3_int32 // can reuse
p.size = size_proto3_uint32
} else {
p.enc = (*Buffer).enc_ref_uint32
p.dec = (*Buffer).dec_proto3_int32 // can reuse
p.size = size_ref_uint32
}
case reflect.Int64, reflect.Uint64:
if p.proto3 {
p.enc = (*Buffer).enc_proto3_int64
p.dec = (*Buffer).dec_proto3_int64
p.size = size_proto3_int64
} else {
p.enc = (*Buffer).enc_ref_int64
p.dec = (*Buffer).dec_proto3_int64
p.size = size_ref_int64
}
case reflect.Float32:
if p.proto3 {
p.enc = (*Buffer).enc_proto3_uint32 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int32
p.size = size_proto3_uint32
} else {
p.enc = (*Buffer).enc_ref_uint32 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int32
p.size = size_ref_uint32
}
case reflect.Float64:
if p.proto3 {
p.enc = (*Buffer).enc_proto3_int64 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int64
p.size = size_proto3_int64
} else {
p.enc = (*Buffer).enc_ref_int64 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int64
p.size = size_ref_int64
}
case reflect.String:
if p.proto3 {
p.enc = (*Buffer).enc_proto3_string
p.dec = (*Buffer).dec_proto3_string
p.size = size_proto3_string
} else {
p.enc = (*Buffer).enc_ref_string
p.dec = (*Buffer).dec_proto3_string
p.size = size_ref_string
}
case reflect.Struct:
p.stype = typ
p.isMarshaler = isMarshaler(typ)
p.isUnmarshaler = isUnmarshaler(typ)
if p.Wire == "bytes" {
p.enc = (*Buffer).enc_ref_struct_message
p.dec = (*Buffer).dec_ref_struct_message
p.size = size_ref_struct_message
} else {
fmt.Fprintf(os.Stderr, "proto: no coders for struct %T\n", typ)
}
case reflect.Ptr:
switch t2 := t1.Elem(); t2.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no encoder function for %v -> %v\n", t1, t2)
break
case reflect.Bool:
p.enc = (*Buffer).enc_bool
p.dec = (*Buffer).dec_bool
p.size = size_bool
case reflect.Int32:
p.enc = (*Buffer).enc_int32
p.dec = (*Buffer).dec_int32
p.size = size_int32
case reflect.Uint32:
p.enc = (*Buffer).enc_uint32
p.dec = (*Buffer).dec_int32 // can reuse
p.size = size_uint32
case reflect.Int64, reflect.Uint64:
p.enc = (*Buffer).enc_int64
p.dec = (*Buffer).dec_int64
p.size = size_int64
case reflect.Float32:
p.enc = (*Buffer).enc_uint32 // can just treat them as bits
p.dec = (*Buffer).dec_int32
p.size = size_uint32
case reflect.Float64:
p.enc = (*Buffer).enc_int64 // can just treat them as bits
p.dec = (*Buffer).dec_int64
p.size = size_int64
case reflect.String:
p.enc = (*Buffer).enc_string
p.dec = (*Buffer).dec_string
p.size = size_string
case reflect.Struct:
p.stype = t1.Elem()
p.isMarshaler = isMarshaler(t1)
p.isUnmarshaler = isUnmarshaler(t1)
if p.Wire == "bytes" {
p.enc = (*Buffer).enc_struct_message
p.dec = (*Buffer).dec_struct_message
p.size = size_struct_message
} else {
p.enc = (*Buffer).enc_struct_group
p.dec = (*Buffer).dec_struct_group
p.size = size_struct_group
}
}
case reflect.Slice:
switch t2 := t1.Elem(); t2.Kind() {
default:
logNoSliceEnc(t1, t2)
break
case reflect.Bool:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_bool
p.size = size_slice_packed_bool
} else {
p.enc = (*Buffer).enc_slice_bool
p.size = size_slice_bool
}
p.dec = (*Buffer).dec_slice_bool
p.packedDec = (*Buffer).dec_slice_packed_bool
case reflect.Int32:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int32
p.size = size_slice_packed_int32
} else {
p.enc = (*Buffer).enc_slice_int32
p.size = size_slice_int32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case reflect.Uint32:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_uint32
p.size = size_slice_packed_uint32
} else {
p.enc = (*Buffer).enc_slice_uint32
p.size = size_slice_uint32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case reflect.Int64, reflect.Uint64:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int64
p.size = size_slice_packed_int64
} else {
p.enc = (*Buffer).enc_slice_int64
p.size = size_slice_int64
}
p.dec = (*Buffer).dec_slice_int64
p.packedDec = (*Buffer).dec_slice_packed_int64
case reflect.Uint8:
p.enc = (*Buffer).enc_slice_byte
p.dec = (*Buffer).dec_slice_byte
p.size = size_slice_byte
// This is a []byte, which is either a bytes field,
// or the value of a map field. In the latter case,
// we always encode an empty []byte, so we should not
// use the proto3 enc/size funcs.
// f == nil iff this is the key/value of a map field.
if p.proto3 && f != nil {
p.enc = (*Buffer).enc_proto3_slice_byte
p.size = size_proto3_slice_byte
}
case reflect.Float32, reflect.Float64:
switch t2.Bits() {
case 32:
// can just treat them as bits
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_uint32
p.size = size_slice_packed_uint32
} else {
p.enc = (*Buffer).enc_slice_uint32
p.size = size_slice_uint32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case 64:
// can just treat them as bits
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int64
p.size = size_slice_packed_int64
} else {
p.enc = (*Buffer).enc_slice_int64
p.size = size_slice_int64
}
p.dec = (*Buffer).dec_slice_int64
p.packedDec = (*Buffer).dec_slice_packed_int64
default:
logNoSliceEnc(t1, t2)
break
}
case reflect.String:
p.enc = (*Buffer).enc_slice_string
p.dec = (*Buffer).dec_slice_string
p.size = size_slice_string
case reflect.Ptr:
switch t3 := t2.Elem(); t3.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no ptr oenc for %T -> %T -> %T\n", t1, t2, t3)
break
case reflect.Struct:
p.stype = t2.Elem()
p.isMarshaler = isMarshaler(t2)
p.isUnmarshaler = isUnmarshaler(t2)
if p.Wire == "bytes" {
p.enc = (*Buffer).enc_slice_struct_message
p.dec = (*Buffer).dec_slice_struct_message
p.size = size_slice_struct_message
} else {
p.enc = (*Buffer).enc_slice_struct_group
p.dec = (*Buffer).dec_slice_struct_group
p.size = size_slice_struct_group
}
}
case reflect.Slice:
switch t2.Elem().Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no slice elem oenc for %T -> %T -> %T\n", t1, t2, t2.Elem())
break
case reflect.Uint8:
p.enc = (*Buffer).enc_slice_slice_byte
p.dec = (*Buffer).dec_slice_slice_byte
p.size = size_slice_slice_byte
}
case reflect.Struct:
p.setSliceOfNonPointerStructs(t1)
}
case reflect.Map:
p.enc = (*Buffer).enc_new_map
p.dec = (*Buffer).dec_new_map
p.size = size_new_map
p.mtype = t1
p.mkeyprop = &Properties{}
p.mkeyprop.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp)
p.mvalprop = &Properties{}
vtype := p.mtype.Elem()
if vtype.Kind() != reflect.Ptr && vtype.Kind() != reflect.Slice {
// The value type is not a message (*T) or bytes ([]byte),
// so we need encoders for the pointer to this type.
vtype = reflect.PtrTo(vtype)
}
p.mvalprop.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp)
}
p.setTag(lockGetProp)
}
func (p *Properties) setTag(lockGetProp bool) {
// precalculate tag code
wire := p.WireType
if p.Packed {
wire = WireBytes
}
x := uint32(p.Tag)<<3 | uint32(wire)
i := 0
for i = 0; x > 127; i++ {
p.tagbuf[i] = 0x80 | uint8(x&0x7F)
x >>= 7
}
p.tagbuf[i] = uint8(x)
p.tagcode = p.tagbuf[0 : i+1]
if p.stype != nil {
if lockGetProp {
p.sprop = GetProperties(p.stype)
} else {
p.sprop = getPropertiesLocked(p.stype)
}
}
}
var (
marshalerType = reflect.TypeOf((*Marshaler)(nil)).Elem()
unmarshalerType = reflect.TypeOf((*Unmarshaler)(nil)).Elem()
)
// isMarshaler reports whether type t implements Marshaler.
func isMarshaler(t reflect.Type) bool {
return t.Implements(marshalerType)
}
// isUnmarshaler reports whether type t implements Unmarshaler.
func isUnmarshaler(t reflect.Type) bool {
return t.Implements(unmarshalerType)
}
// Init populates the properties from a protocol buffer struct tag.
func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) {
p.init(typ, name, tag, f, true)
}
func (p *Properties) init(typ reflect.Type, name, tag string, f *reflect.StructField, lockGetProp bool) {
// "bytes,49,opt,def=hello!"
p.Name = name
p.OrigName = name
if f != nil {
p.field = toField(f)
}
if tag == "" {
return
}
p.Parse(tag)
p.setEncAndDec(typ, f, lockGetProp)
}
var (
propertiesMu sync.RWMutex
propertiesMap = make(map[reflect.Type]*StructProperties)
)
// GetProperties returns the list of properties for the type represented by t.
// t must represent a generated struct type of a protocol message.
func GetProperties(t reflect.Type) *StructProperties {
if t.Kind() != reflect.Struct {
panic("proto: type must have kind struct")
}
// Most calls to GetProperties in a long-running program will be
// retrieving details for types we have seen before.
propertiesMu.RLock()
sprop, ok := propertiesMap[t]
propertiesMu.RUnlock()
if ok {
if collectStats {
stats.Chit++
}
return sprop
}
propertiesMu.Lock()
sprop = getPropertiesLocked(t)
propertiesMu.Unlock()
return sprop
}
// getPropertiesLocked requires that propertiesMu is held.
func getPropertiesLocked(t reflect.Type) *StructProperties {
if prop, ok := propertiesMap[t]; ok {
if collectStats {
stats.Chit++
}
return prop
}
if collectStats {
stats.Cmiss++
}
prop := new(StructProperties)
// in case of recursive protos, fill this in now.
propertiesMap[t] = prop
// build properties
prop.extendable = reflect.PtrTo(t).Implements(extendableProtoType)
prop.unrecField = invalidField
prop.Prop = make([]*Properties, t.NumField())
prop.order = make([]int, t.NumField())
isOneofMessage := false
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
p := new(Properties)
name := f.Name
p.init(f.Type, name, f.Tag.Get("protobuf"), &f, false)
if f.Name == "XXX_extensions" { // special case
if len(f.Tag.Get("protobuf")) > 0 {
p.enc = (*Buffer).enc_ext_slice_byte
p.dec = nil // not needed
p.size = size_ext_slice_byte
} else {
p.enc = (*Buffer).enc_map
p.dec = nil // not needed
p.size = size_map
}
}
if f.Name == "XXX_unrecognized" { // special case
prop.unrecField = toField(&f)
}
oneof := f.Tag.Get("protobuf_oneof") != "" // special case
if oneof {
isOneofMessage = true
}
prop.Prop[i] = p
prop.order[i] = i
if debug {
print(i, " ", f.Name, " ", t.String(), " ")
if p.Tag > 0 {
print(p.String())
}
print("\n")
}
if p.enc == nil && !strings.HasPrefix(f.Name, "XXX_") && !oneof {
fmt.Fprintln(os.Stderr, "proto: no encoder for", f.Name, f.Type.String(), "[GetProperties]")
}
}
// Re-order prop.order.
sort.Sort(prop)
type oneofMessage interface {
XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), []interface{})
}
if om, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); isOneofMessage && ok {
var oots []interface{}
prop.oneofMarshaler, prop.oneofUnmarshaler, oots = om.XXX_OneofFuncs()
prop.stype = t
// Interpret oneof metadata.
prop.OneofTypes = make(map[string]*OneofProperties)
for _, oot := range oots {
oop := &OneofProperties{
Type: reflect.ValueOf(oot).Type(), // *T
Prop: new(Properties),
}
sft := oop.Type.Elem().Field(0)
oop.Prop.Name = sft.Name
oop.Prop.Parse(sft.Tag.Get("protobuf"))
// There will be exactly one interface field that
// this new value is assignable to.
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
if f.Type.Kind() != reflect.Interface {
continue
}
if !oop.Type.AssignableTo(f.Type) {
continue
}
oop.Field = i
break
}
prop.OneofTypes[oop.Prop.OrigName] = oop
}
}
// build required counts
// build tags
reqCount := 0
prop.decoderOrigNames = make(map[string]int)
for i, p := range prop.Prop {
if strings.HasPrefix(p.Name, "XXX_") {
// Internal fields should not appear in tags/origNames maps.
// They are handled specially when encoding and decoding.
continue
}
if p.Required {
reqCount++
}
prop.decoderTags.put(p.Tag, i)
prop.decoderOrigNames[p.OrigName] = i
}
prop.reqCount = reqCount
return prop
}
// Return the Properties object for the x[0]'th field of the structure.
func propByIndex(t reflect.Type, x []int) *Properties {
if len(x) != 1 {
fmt.Fprintf(os.Stderr, "proto: field index dimension %d (not 1) for type %s\n", len(x), t)
return nil
}
prop := GetProperties(t)
return prop.Prop[x[0]]
}
// Get the address and type of a pointer to a struct from an interface.
func getbase(pb Message) (t reflect.Type, b structPointer, err error) {
if pb == nil {
err = ErrNil
return
}
// get the reflect type of the pointer to the struct.
t = reflect.TypeOf(pb)
// get the address of the struct.
value := reflect.ValueOf(pb)
b = toStructPointer(value)
return
}
// A global registry of enum types.
// The generated code will register the generated maps by calling RegisterEnum.
var enumValueMaps = make(map[string]map[string]int32)
var enumStringMaps = make(map[string]map[int32]string)
// RegisterEnum is called from the generated code to install the enum descriptor
// maps into the global table to aid parsing text format protocol buffers.
func RegisterEnum(typeName string, unusedNameMap map[int32]string, valueMap map[string]int32) {
if _, ok := enumValueMaps[typeName]; ok {
panic("proto: duplicate enum registered: " + typeName)
}
enumValueMaps[typeName] = valueMap
if _, ok := enumStringMaps[typeName]; ok {
panic("proto: duplicate enum registered: " + typeName)
}
enumStringMaps[typeName] = unusedNameMap
}
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