protobuf-go/cmd/protoc-gen-go/main.go
Damien Neil d901677135 protogen: automatic handling of imports
The GoIdent type is now a tuple of import path and name. Generated files
have an associated import path. Writing a GoIdent to a generated file
qualifies the name if the identifier is from a different package.
All necessary imports are automatically added to generated Go files.

Change-Id: I839e0b7aa8ec967ce178aea4ffb960b62779cf74
Reviewed-on: https://go-review.googlesource.com/133635
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
2018-09-05 23:14:28 +00:00

51 lines
1.1 KiB
Go

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// The protoc-gen-go binary is a protoc plugin to generate a Go protocol
// buffer package.
package main
import (
"strings"
"google.golang.org/proto/protogen"
)
func main() {
protogen.Run(func(gen *protogen.Plugin) error {
for _, f := range gen.Files {
if !f.Generate {
continue
}
genFile(gen, f)
}
return nil
})
}
func genFile(gen *protogen.Plugin, f *protogen.File) {
g := gen.NewGeneratedFile(strings.TrimSuffix(f.Desc.GetName(), ".proto")+".pb.go", f.GoImportPath)
g.P("// Code generated by protoc-gen-go. DO NOT EDIT.")
g.P("// source: ", f.Desc.GetName())
g.P()
g.P("package TODO")
g.P()
for _, m := range f.Messages {
genMessage(gen, g, m)
}
// TODO: Everything.
}
func genMessage(gen *protogen.Plugin, g *protogen.GeneratedFile, m *protogen.Message) {
g.P("type ", m.GoIdent, " struct {")
g.P("}")
g.P()
for _, nested := range m.Messages {
genMessage(gen, g, nested)
}
}