95 lines
3.2 KiB
Go
95 lines
3.2 KiB
Go
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// Copyright 2020-2021 Buf Technologies, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package protoencoding
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import (
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"google.golang.org/protobuf/proto"
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"google.golang.org/protobuf/reflect/protoregistry"
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"google.golang.org/protobuf/types/descriptorpb"
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)
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// Resolver is a Resolver.
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//
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// This is only needed in cases where extensions may be present.
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type Resolver interface {
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protoregistry.ExtensionTypeResolver
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protoregistry.MessageTypeResolver
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}
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// NewResolver creates a New Resolver.
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//
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// If the input slice is empty, this returns nil
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// The given FileDescriptorProtos must be self-contained, that is they must contain all imports.
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// This can NOT be guaranteed for FileDescriptorSets given over the wire, and can only be guaranteed from builds.
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func NewResolver(fileDescriptorProtos ...*descriptorpb.FileDescriptorProto) (Resolver, error) {
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return newResolver(fileDescriptorProtos...)
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}
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// Marshaler marshals Messages.
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type Marshaler interface {
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Marshal(message proto.Message) ([]byte, error)
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}
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// NewWireMarshaler returns a new Marshaler for wire.
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//
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// See https://godoc.org/google.golang.org/protobuf/proto#MarshalOptions for a discussion on stability.
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// This has the potential to be unstable over time.
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func NewWireMarshaler() Marshaler {
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return newWireMarshaler()
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}
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// NewJSONMarshaler returns a new Marshaler for JSON.
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//
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// This has the potential to be unstable over time.
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// resolver can be nil if unknown and are only needed for extensions.
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func NewJSONMarshaler(resolver Resolver) Marshaler {
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return newJSONMarshaler(resolver, "", false)
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}
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// NewJSONMarshalerIndent returns a new Marshaler for JSON with indents.
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//
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// This has the potential to be unstable over time.
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// resolver can be nil if unknown and are only needed for extensions.
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func NewJSONMarshalerIndent(resolver Resolver) Marshaler {
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return newJSONMarshaler(resolver, " ", false)
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}
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// NewJSONMarshalerUseProtoNames returns a new Marshaler for JSON using the proto names for keys.
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//
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// This has the potential to be unstable over time.
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// resolver can be nil if unknown and are only needed for extensions.
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func NewJSONMarshalerUseProtoNames(resolver Resolver) Marshaler {
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return newJSONMarshaler(resolver, "", true)
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}
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// Unmarshaler unmarshals Messages.
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type Unmarshaler interface {
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Unmarshal(data []byte, message proto.Message) error
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}
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// NewWireUnmarshaler returns a new Unmarshaler for wire.
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//
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// resolver can be nil if unknown and are only needed for extensions.
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func NewWireUnmarshaler(resolver Resolver) Unmarshaler {
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return newWireUnmarshaler(resolver)
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}
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// NewJSONUnmarshaler returns a new Unmarshaler for json.
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//
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// resolver can be nil if unknown and are only needed for extensions.
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func NewJSONUnmarshaler(resolver Resolver) Unmarshaler {
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return newJSONUnmarshaler(resolver)
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}
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