protoc-gen-go-msgclone

protoc-gen-go-msgclone

Command protoc-gen-go-msgclone is a protoc plugin that generates code to clone messages without reflection.

Features

See also examples/addressbook.

// Code generated by protoc-gen-go-msgclone. DO NOT EDIT.
// source: examples/addressbook/addressbook.proto

package addressbook

func (x *Person) ShallowClone() *Person {
	return &Person{
		Name:        x.GetName(),
		Id:          x.GetId(),
		Email:       x.GetEmail(),
		Phones:      x.GetPhones(),
		LastUpdated: x.GetLastUpdated(),
	}
}

func (x *Person_PhoneNumber) ShallowClone() *Person_PhoneNumber {
	return &Person_PhoneNumber{
		Number: x.GetNumber(),
		Type:   x.GetType(),
	}
}

func (x *AddressBook) ShallowClone() *AddressBook {
	return &AddressBook{
		People: x.GetPeople(),
	}
}

ShallowClone

Generated method, for all messages types (including nested), which will instance a new message of the same type, performing a shallow copy of all fields from the receiver, using the getter methods generated by the official go plugin.

The method name may be overridden via the shallow_clone_name option.

Usage

Generates *.pb.msgclone.go files, alongside the usual *.pb.go files, for all proto files with at least one message.

Standard protoc plugin usage, with several options common to the go and go-grpc plugins.

Code is generated using the protoc command, as usual, by providing at least one additional argument, like --go-msgclone_out=OUT_DIR. Plugin options may also be provided in the usual manner, like --go-msgclone_opt=OPTION[=VALUE].

# install the plugin
go install github.com/joeycumines/protoc-gen-go-msgclone@latest

# example protoc usage based on https://developers.google.com/protocol-buffers/docs/reference/go-generated
protoc --proto_path=src --go_out=out --go_opt=paths=source_relative --go-msgclone_out=out --go-msgclone_opt=paths=source_relative foo.proto bar/baz.proto