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Diffstat (limited to 'vendor/github.com/golang/protobuf/proto/proto.go')
-rw-r--r-- | vendor/github.com/golang/protobuf/proto/proto.go | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/vendor/github.com/golang/protobuf/proto/proto.go b/vendor/github.com/golang/protobuf/proto/proto.go new file mode 100644 index 000000000..5aee89c32 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/proto.go @@ -0,0 +1,167 @@ +// Copyright 2019 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. + +// Package proto provides functionality for handling protocol buffer messages. +// In particular, it provides marshaling and unmarshaling between a protobuf +// message and the binary wire format. +// +// See https://developers.google.com/protocol-buffers/docs/gotutorial for +// more information. +// +// Deprecated: Use the "google.golang.org/protobuf/proto" package instead. +package proto + +import ( + protoV2 "google.golang.org/protobuf/proto" + "google.golang.org/protobuf/reflect/protoreflect" + "google.golang.org/protobuf/runtime/protoiface" + "google.golang.org/protobuf/runtime/protoimpl" +) + +const ( + ProtoPackageIsVersion1 = true + ProtoPackageIsVersion2 = true + ProtoPackageIsVersion3 = true + ProtoPackageIsVersion4 = true +) + +// GeneratedEnum is any enum type generated by protoc-gen-go +// which is a named int32 kind. +// This type exists for documentation purposes. +type GeneratedEnum interface{} + +// GeneratedMessage is any message type generated by protoc-gen-go +// which is a pointer to a named struct kind. +// This type exists for documentation purposes. +type GeneratedMessage interface{} + +// Message is a protocol buffer message. +// +// This is the v1 version of the message interface and is marginally better +// than an empty interface as it lacks any method to programatically interact +// with the contents of the message. +// +// A v2 message is declared in "google.golang.org/protobuf/proto".Message and +// exposes protobuf reflection as a first-class feature of the interface. +// +// To convert a v1 message to a v2 message, use the MessageV2 function. +// To convert a v2 message to a v1 message, use the MessageV1 function. +type Message = protoiface.MessageV1 + +// MessageV1 converts either a v1 or v2 message to a v1 message. +// It returns nil if m is nil. +func MessageV1(m GeneratedMessage) protoiface.MessageV1 { + return protoimpl.X.ProtoMessageV1Of(m) +} + +// MessageV2 converts either a v1 or v2 message to a v2 message. +// It returns nil if m is nil. +func MessageV2(m GeneratedMessage) protoV2.Message { + return protoimpl.X.ProtoMessageV2Of(m) +} + +// MessageReflect returns a reflective view for a message. +// It returns nil if m is nil. +func MessageReflect(m Message) protoreflect.Message { + return protoimpl.X.MessageOf(m) +} + +// Marshaler is implemented by messages that can marshal themselves. +// This interface is used by the following functions: Size, Marshal, +// Buffer.Marshal, and Buffer.EncodeMessage. +// +// Deprecated: Do not implement. +type Marshaler interface { + // Marshal formats the encoded bytes of the message. + // It should be deterministic and emit valid protobuf wire data. + // The caller takes ownership of the returned buffer. + Marshal() ([]byte, error) +} + +// Unmarshaler is implemented by messages that can unmarshal themselves. +// This interface is used by the following functions: Unmarshal, UnmarshalMerge, +// Buffer.Unmarshal, Buffer.DecodeMessage, and Buffer.DecodeGroup. +// +// Deprecated: Do not implement. +type Unmarshaler interface { + // Unmarshal parses the encoded bytes of the protobuf wire input. + // The provided buffer is only valid for during method call. + // It should not reset the receiver message. + Unmarshal([]byte) error +} + +// Merger is implemented by messages that can merge themselves. +// This interface is used by the following functions: Clone and Merge. +// +// Deprecated: Do not implement. +type Merger interface { + // Merge merges the contents of src into the receiver message. + // It clones all data structures in src such that it aliases no mutable + // memory referenced by src. + Merge(src Message) +} + +// RequiredNotSetError is an error type returned when +// marshaling or unmarshaling a message with missing required fields. +type RequiredNotSetError struct { + err error +} + +func (e *RequiredNotSetError) Error() string { + if e.err != nil { + return e.err.Error() + } + return "proto: required field not set" +} +func (e *RequiredNotSetError) RequiredNotSet() bool { + return true +} + +func checkRequiredNotSet(m protoV2.Message) error { + if err := protoV2.CheckInitialized(m); err != nil { + return &RequiredNotSetError{err: err} + } + return nil +} + +// Clone returns a deep copy of src. +func Clone(src Message) Message { + return MessageV1(protoV2.Clone(MessageV2(src))) +} + +// Merge merges src into dst, which must be messages of the same type. +// +// Populated scalar fields in src are copied to dst, while populated +// singular messages in src are merged into dst by recursively calling Merge. +// The elements of every list field in src is appended to the corresponded +// list fields in dst. The entries of every map field in src is copied into +// the corresponding map field in dst, possibly replacing existing entries. +// The unknown fields of src are appended to the unknown fields of dst. +func Merge(dst, src Message) { + protoV2.Merge(MessageV2(dst), MessageV2(src)) +} + +// Equal reports whether two messages are equal. +// If two messages marshal to the same bytes under deterministic serialization, +// then Equal is guaranteed to report true. +// +// Two messages are equal if they are the same protobuf message type, +// have the same set of populated known and extension field values, +// and the same set of unknown fields values. +// +// Scalar values are compared with the equivalent of the == operator in Go, +// except bytes values which are compared using bytes.Equal and +// floating point values which specially treat NaNs as equal. +// Message values are compared by recursively calling Equal. +// Lists are equal if each element value is also equal. +// Maps are equal if they have the same set of keys, where the pair of values +// for each key is also equal. +func Equal(x, y Message) bool { + return protoV2.Equal(MessageV2(x), MessageV2(y)) +} + +func isMessageSet(md protoreflect.MessageDescriptor) bool { + ms, ok := md.(interface{ IsMessageSet() bool }) + return ok && ms.IsMessageSet() +} |