Function ClearExtension

proto/extensions.go:73–92

ClearExtension removes the extension field from m either as an explicitly populated field or as an unknown field.

(m Message, xt *ExtensionDesc)

// ClearExtension removes the extension field from m
// either as an explicitly populated field or as an unknown field.
func ClearExtension(m Message, xt *ExtensionDesc) {
	mr := MessageReflect(m)
	if mr == nil || !mr.IsValid() {
		return
	}

	xtd := xt.TypeDescriptor()
	if isValidExtension(mr.Descriptor(), xtd) {
		mr.Clear(xtd)
	} else {
		mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
			if int32(fd.Number()) == xt.Field {
				mr.Clear(fd)
				return false
			}
			return true
		})
	}
	clearUnknown(mr, fieldNum(xt.Field))
}

// ClearAllExtensions clears all extensions from m.
// This includes populated fields and unknown fields in the extension range.