Method goPackageOption

protoc-gen-go/generator/generator.go:275–291

goPackageOption interprets the file's go_package option. If there is no go_package, it returns ("", "", false). If there's a simple name, it returns ("", pkg, true). If the option implies an import path, it returns (impPath, pkg, true).

()

// If there's a simple name, it returns ("", pkg, true).
// If the option implies an import path, it returns (impPath, pkg, true).
func (d *FileDescriptor) goPackageOption() (impPath GoImportPath, pkg GoPackageName, ok bool) {
	opt := d.GetOptions().GetGoPackage()
	if opt == "" {
		return "", "", false
	}
	// A semicolon-delimited suffix delimits the import path and package name.
	sc := strings.Index(opt, ";")
	if sc >= 0 {
		return GoImportPath(opt[:sc]), cleanPackageName(opt[sc+1:]), true
	}
	// The presence of a slash implies there's an import path.
	slash := strings.LastIndex(opt, "/")
	if slash >= 0 {
		return GoImportPath(opt), cleanPackageName(opt[slash+1:]), true
	}
	return "", cleanPackageName(opt), true
}

// goFileName returns the output name for the generated Go file.
func (d *FileDescriptor) goFileName(pathType pathType) string {