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Diffstat (limited to 'src/google/protobuf/compiler/java/java_message_builder_lite.cc')
| -rw-r--r-- | src/google/protobuf/compiler/java/java_message_builder_lite.cc | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/java/java_message_builder_lite.cc b/src/google/protobuf/compiler/java/java_message_builder_lite.cc new file mode 100644 index 00000000..dd429dc9 --- /dev/null +++ b/src/google/protobuf/compiler/java/java_message_builder_lite.cc @@ -0,0 +1,179 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Author: dweis@google.com (Daniel Weis) +// Based on original Protocol Buffers design by +// Sanjay Ghemawat, Jeff Dean, and others. + +#include <google/protobuf/compiler/java/java_message_builder_lite.h> + +#include <algorithm> +#include <google/protobuf/stubs/hash.h> +#include <map> +#include <memory> +#ifndef _SHARED_PTR_H +#include <google/protobuf/stubs/shared_ptr.h> +#endif +#include <vector> + +#include <google/protobuf/compiler/java/java_context.h> +#include <google/protobuf/compiler/java/java_doc_comment.h> +#include <google/protobuf/compiler/java/java_enum.h> +#include <google/protobuf/compiler/java/java_extension.h> +#include <google/protobuf/compiler/java/java_generator_factory.h> +#include <google/protobuf/compiler/java/java_helpers.h> +#include <google/protobuf/compiler/java/java_name_resolver.h> +#include <google/protobuf/io/coded_stream.h> +#include <google/protobuf/io/printer.h> +#include <google/protobuf/descriptor.pb.h> +#include <google/protobuf/wire_format.h> +#include <google/protobuf/stubs/strutil.h> +#include <google/protobuf/stubs/substitute.h> + +namespace google { +namespace protobuf { +namespace compiler { +namespace java { + +namespace { +bool GenerateHasBits(const Descriptor* descriptor) { + return SupportFieldPresence(descriptor->file()) || + HasRepeatedFields(descriptor); +} + +string MapValueImmutableClassdName(const Descriptor* descriptor, + ClassNameResolver* name_resolver) { + const FieldDescriptor* value_field = descriptor->FindFieldByName("value"); + GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, value_field->type()); + return name_resolver->GetImmutableClassName(value_field->message_type()); +} +} // namespace + +MessageBuilderLiteGenerator::MessageBuilderLiteGenerator( + const Descriptor* descriptor, Context* context) + : descriptor_(descriptor), context_(context), + name_resolver_(context->GetNameResolver()), + field_generators_(descriptor, context_) { + GOOGLE_CHECK(!HasDescriptorMethods(descriptor->file(), context->EnforceLite())) + << "Generator factory error: A lite message generator is used to " + "generate non-lite messages."; +} + +MessageBuilderLiteGenerator::~MessageBuilderLiteGenerator() {} + +void MessageBuilderLiteGenerator:: +Generate(io::Printer* printer) { + WriteMessageDocComment(printer, descriptor_); + printer->Print( + "public static final class Builder extends\n" + " com.google.protobuf.GeneratedMessageLite.$extendible$Builder<\n" + " $classname$, Builder> implements\n" + " $extra_interfaces$\n" + " $classname$OrBuilder {\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_), + "extra_interfaces", ExtraBuilderInterfaces(descriptor_), + "extendible", + descriptor_->extension_range_count() > 0 ? "Extendable" : ""); + printer->Indent(); + + GenerateCommonBuilderMethods(printer); + + // oneof + map<string, string> vars; + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { + vars["oneof_name"] = context_->GetOneofGeneratorInfo( + descriptor_->oneof_decl(i))->name; + vars["oneof_capitalized_name"] = context_->GetOneofGeneratorInfo( + descriptor_->oneof_decl(i))->capitalized_name; + vars["oneof_index"] = SimpleItoa(descriptor_->oneof_decl(i)->index()); + + // oneofCase() and clearOneof() + printer->Print(vars, + "public $oneof_capitalized_name$Case\n" + " get$oneof_capitalized_name$Case() {\n" + " return instance.get$oneof_capitalized_name$Case();\n" + "}\n" + "\n" + "public Builder clear$oneof_capitalized_name$() {\n" + " copyOnWrite();\n" + " instance.clear$oneof_capitalized_name$();\n" + " return this;\n" + "}\n" + "\n"); + } + + if (GenerateHasBits(descriptor_)) { + // Integers for bit fields. + int totalBits = 0; + for (int i = 0; i < descriptor_->field_count(); i++) { + totalBits += field_generators_.get(descriptor_->field(i)) + .GetNumBitsForBuilder(); + } + int totalInts = (totalBits + 31) / 32; + for (int i = 0; i < totalInts; i++) { + printer->Print("private int $bit_field_name$;\n", + "bit_field_name", GetBitFieldName(i)); + } + } + + for (int i = 0; i < descriptor_->field_count(); i++) { + printer->Print("\n"); + field_generators_.get(descriptor_->field(i)) + .GenerateBuilderMembers(printer); + } + + printer->Print( + "\n" + "// @@protoc_insertion_point(builder_scope:$full_name$)\n", + "full_name", descriptor_->full_name()); + + printer->Outdent(); + printer->Print("}\n"); +} + +// =================================================================== + +void MessageBuilderLiteGenerator:: +GenerateCommonBuilderMethods(io::Printer* printer) { + printer->Print( + "// Construct using $classname$.newBuilder()\n" + "private Builder() {\n" + " super(DEFAULT_INSTANCE);\n" + "}\n" + "\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); +} + +// =================================================================== + +} // namespace java +} // namespace compiler +} // namespace protobuf +} // namespace google |