115 lines
4.4 KiB
C++
115 lines
4.4 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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// Author: kenton@google.com (Kenton Varda)
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// Based on original Protocol Buffers design by
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// Sanjay Ghemawat, Jeff Dean, and others.
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#include <memory>
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#include <utility>
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#include "google/protobuf/compiler/java/context.h"
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#include "google/protobuf/compiler/java/generator_common.h"
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#include "google/protobuf/compiler/java/helpers.h"
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#include "google/protobuf/compiler/java/immutable/enum_field.h"
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#include "google/protobuf/compiler/java/immutable/field_generator.h"
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#include "google/protobuf/compiler/java/immutable/map_field.h"
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#include "google/protobuf/compiler/java/immutable/message_field.h"
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#include "google/protobuf/compiler/java/immutable/primitive_field.h"
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#include "google/protobuf/compiler/java/immutable/string_field.h"
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#include "google/protobuf/descriptor.h"
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namespace google {
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namespace protobuf {
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namespace compiler {
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namespace java {
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namespace {
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std::unique_ptr<ImmutableFieldGenerator> MakeImmutableGenerator(
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const FieldDescriptor* field, int messageBitIndex, int builderBitIndex,
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Context* context) {
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if (field->is_repeated()) {
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switch (GetJavaType(field)) {
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case JAVATYPE_MESSAGE:
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if (IsMapEntry(field->message_type())) {
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return std::make_unique<ImmutableMapFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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} else {
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return std::make_unique<RepeatedImmutableMessageFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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}
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case JAVATYPE_ENUM:
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return std::make_unique<RepeatedImmutableEnumFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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case JAVATYPE_STRING:
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return std::make_unique<RepeatedImmutableStringFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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default:
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return std::make_unique<RepeatedImmutablePrimitiveFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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}
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} else {
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if (IsRealOneof(field)) {
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switch (GetJavaType(field)) {
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case JAVATYPE_MESSAGE:
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return std::make_unique<ImmutableMessageOneofFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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case JAVATYPE_ENUM:
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return std::make_unique<ImmutableEnumOneofFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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case JAVATYPE_STRING:
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return std::make_unique<ImmutableStringOneofFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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default:
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return std::make_unique<ImmutablePrimitiveOneofFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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}
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} else {
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switch (GetJavaType(field)) {
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case JAVATYPE_MESSAGE:
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return std::make_unique<ImmutableMessageFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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case JAVATYPE_ENUM:
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return std::make_unique<ImmutableEnumFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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case JAVATYPE_STRING:
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return std::make_unique<ImmutableStringFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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default:
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return std::make_unique<ImmutablePrimitiveFieldGenerator>(
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field, messageBitIndex, builderBitIndex, context);
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}
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}
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}
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}
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} // namespace
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FieldGeneratorMap<ImmutableFieldGenerator> MakeImmutableFieldGenerators(
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const Descriptor* descriptor, Context* context) {
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// Construct all the FieldGenerators and assign them bit indices for their
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// bit fields.
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int messageBitIndex = 0;
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int builderBitIndex = 0;
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FieldGeneratorMap<ImmutableFieldGenerator> ret(descriptor);
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for (int i = 0; i < descriptor->field_count(); i++) {
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const FieldDescriptor* field = descriptor->field(i);
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auto generator = MakeImmutableGenerator(field, messageBitIndex,
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builderBitIndex, context);
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messageBitIndex += generator->GetNumBitsForMessage();
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builderBitIndex += generator->GetNumBitsForBuilder();
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ret.Add(field, std::move(generator));
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}
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return ret;
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}
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} // namespace java
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} // namespace compiler
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} // namespace protobuf
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} // namespace google
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