| // Protocol Buffers for Go with Gadgets |
| // |
| // Copyright (c) 2013, The GoGo Authors. All rights reserved. |
| // http://github.com/gogo/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. |
| // |
| // 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 size |
| |
| import ( |
| "github.com/gogo/protobuf/gogoproto" |
| "github.com/gogo/protobuf/plugin/testgen" |
| "github.com/gogo/protobuf/protoc-gen-gogo/generator" |
| ) |
| |
| type test struct { |
| *generator.Generator |
| } |
| |
| func NewTest(g *generator.Generator) testgen.TestPlugin { |
| return &test{g} |
| } |
| |
| func (p *test) Generate(imports generator.PluginImports, file *generator.FileDescriptor) bool { |
| used := false |
| randPkg := imports.NewImport("math/rand") |
| timePkg := imports.NewImport("time") |
| testingPkg := imports.NewImport("testing") |
| protoPkg := imports.NewImport("github.com/gogo/protobuf/proto") |
| if !gogoproto.ImportsGoGoProto(file.FileDescriptorProto) { |
| protoPkg = imports.NewImport("github.com/golang/protobuf/proto") |
| } |
| for _, message := range file.Messages() { |
| ccTypeName := generator.CamelCaseSlice(message.TypeName()) |
| sizeName := "" |
| if gogoproto.IsSizer(file.FileDescriptorProto, message.DescriptorProto) { |
| sizeName = "Size" |
| } else if gogoproto.IsProtoSizer(file.FileDescriptorProto, message.DescriptorProto) { |
| sizeName = "ProtoSize" |
| } else { |
| continue |
| } |
| if message.DescriptorProto.GetOptions().GetMapEntry() { |
| continue |
| } |
| |
| if gogoproto.HasTestGen(file.FileDescriptorProto, message.DescriptorProto) { |
| used = true |
| p.P(`func Test`, ccTypeName, sizeName, `(t *`, testingPkg.Use(), `.T) {`) |
| p.In() |
| p.P(`seed := `, timePkg.Use(), `.Now().UnixNano()`) |
| p.P(`popr := `, randPkg.Use(), `.New(`, randPkg.Use(), `.NewSource(seed))`) |
| p.P(`p := NewPopulated`, ccTypeName, `(popr, true)`) |
| p.P(`size2 := `, protoPkg.Use(), `.Size(p)`) |
| p.P(`dAtA, err := `, protoPkg.Use(), `.Marshal(p)`) |
| p.P(`if err != nil {`) |
| p.In() |
| p.P(`t.Fatalf("seed = %d, err = %v", seed, err)`) |
| p.Out() |
| p.P(`}`) |
| p.P(`size := p.`, sizeName, `()`) |
| p.P(`if len(dAtA) != size {`) |
| p.In() |
| p.P(`t.Errorf("seed = %d, size %v != marshalled size %v", seed, size, len(dAtA))`) |
| p.Out() |
| p.P(`}`) |
| p.P(`if size2 != size {`) |
| p.In() |
| p.P(`t.Errorf("seed = %d, size %v != before marshal proto.Size %v", seed, size, size2)`) |
| p.Out() |
| p.P(`}`) |
| p.P(`size3 := `, protoPkg.Use(), `.Size(p)`) |
| p.P(`if size3 != size {`) |
| p.In() |
| p.P(`t.Errorf("seed = %d, size %v != after marshal proto.Size %v", seed, size, size3)`) |
| p.Out() |
| p.P(`}`) |
| p.Out() |
| p.P(`}`) |
| p.P() |
| } |
| |
| if gogoproto.HasBenchGen(file.FileDescriptorProto, message.DescriptorProto) { |
| used = true |
| p.P(`func Benchmark`, ccTypeName, sizeName, `(b *`, testingPkg.Use(), `.B) {`) |
| p.In() |
| p.P(`popr := `, randPkg.Use(), `.New(`, randPkg.Use(), `.NewSource(616))`) |
| p.P(`total := 0`) |
| p.P(`pops := make([]*`, ccTypeName, `, 1000)`) |
| p.P(`for i := 0; i < 1000; i++ {`) |
| p.In() |
| p.P(`pops[i] = NewPopulated`, ccTypeName, `(popr, false)`) |
| p.Out() |
| p.P(`}`) |
| p.P(`b.ResetTimer()`) |
| p.P(`for i := 0; i < b.N; i++ {`) |
| p.In() |
| p.P(`total += pops[i%1000].`, sizeName, `()`) |
| p.Out() |
| p.P(`}`) |
| p.P(`b.SetBytes(int64(total / b.N))`) |
| p.Out() |
| p.P(`}`) |
| p.P() |
| } |
| |
| } |
| return used |
| } |
| |
| func init() { |
| testgen.RegisterTestPlugin(NewTest) |
| } |