Source: reset.go in package google.golang.org/protobuf/proto

Source File
	reset.go

Belonging Package
	google.golang.org/protobuf/proto


package proto

import (
	"fmt"

	"google.golang.org/protobuf/reflect/protoreflect"
)

Reset clears every field in the message. The resulting message shares no observable memory with its previous state other than the memory for the message itself.

func Reset(m Message) {
	if mr, ok := m.(interface{ Reset() }); ok && hasProtoMethods {
		mr.Reset()
		return
	}
	resetMessage(m.ProtoReflect())
}

func resetMessage(m protoreflect.Message) {
	if !m.IsValid() {
		panic(fmt.Sprintf("cannot reset invalid %v message", m.Descriptor().FullName()))
	}

Clear all known fields.

	fds := m.Descriptor().Fields()
	for i := 0; i < fds.Len(); i++ {
		m.Clear(fds.Get(i))
	}

Clear extension fields.

	m.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
		m.Clear(fd)
		return true
	})

Clear unknown fields.

	m.SetUnknown(nil)


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