521 lines
19 KiB
C++
521 lines
19 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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 <google/protobuf/compiler/cpp/cpp_enum_field.h>
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#include <google/protobuf/compiler/cpp/cpp_helpers.h>
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#include <google/protobuf/io/printer.h>
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#include <google/protobuf/wire_format.h>
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#include <google/protobuf/stubs/strutil.h>
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namespace google {
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namespace protobuf {
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namespace compiler {
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namespace cpp {
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namespace {
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void SetEnumVariables(const FieldDescriptor* descriptor,
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std::map<string, string>* variables,
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const Options& options) {
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SetCommonFieldVariables(descriptor, variables, options);
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const EnumValueDescriptor* default_value = descriptor->default_value_enum();
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(*variables)["type"] = ClassName(descriptor->enum_type(), true);
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(*variables)["default"] = Int32ToString(default_value->number());
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(*variables)["full_name"] = descriptor->full_name();
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}
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} // namespace
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// ===================================================================
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EnumFieldGenerator::EnumFieldGenerator(const FieldDescriptor* descriptor,
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const Options& options)
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: FieldGenerator(options), descriptor_(descriptor) {
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SetEnumVariables(descriptor, &variables_, options);
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}
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EnumFieldGenerator::~EnumFieldGenerator() {}
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void EnumFieldGenerator::
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GeneratePrivateMembers(io::Printer* printer) const {
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printer->Print(variables_, "int $name$_;\n");
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}
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void EnumFieldGenerator::
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GenerateAccessorDeclarations(io::Printer* printer) const {
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printer->Print(variables_, "$deprecated_attr$$type$ $name$() const;\n");
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printer->Annotate("name", descriptor_);
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printer->Print(variables_,
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"$deprecated_attr$void ${$set_$name$$}$($type$ value);\n");
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printer->Annotate("{", "}", descriptor_);
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}
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void EnumFieldGenerator::
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GenerateInlineAccessorDefinitions(io::Printer* printer) const {
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printer->Print(variables_,
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"inline $type$ $classname$::$name$() const {\n"
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" // @@protoc_insertion_point(field_get:$full_name$)\n"
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" return static_cast< $type$ >($name$_);\n"
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"}\n"
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"inline void $classname$::set_$name$($type$ value) {\n");
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if (!HasPreservingUnknownEnumSemantics(descriptor_->file())) {
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printer->Print(variables_,
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" assert($type$_IsValid(value));\n");
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}
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printer->Print(variables_,
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" $set_hasbit$\n"
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" $name$_ = value;\n"
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" // @@protoc_insertion_point(field_set:$full_name$)\n"
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"}\n");
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}
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void EnumFieldGenerator::
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GenerateClearingCode(io::Printer* printer) const {
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printer->Print(variables_, "$name$_ = $default$;\n");
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}
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void EnumFieldGenerator::
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GenerateMergingCode(io::Printer* printer) const {
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printer->Print(variables_, "set_$name$(from.$name$());\n");
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}
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void EnumFieldGenerator::
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GenerateSwappingCode(io::Printer* printer) const {
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printer->Print(variables_, "swap($name$_, other->$name$_);\n");
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}
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void EnumFieldGenerator::
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GenerateConstructorCode(io::Printer* printer) const {
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printer->Print(variables_, "$name$_ = $default$;\n");
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}
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void EnumFieldGenerator::
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GenerateCopyConstructorCode(io::Printer* printer) const {
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printer->Print(variables_, "$name$_ = from.$name$_;\n");
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}
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void EnumFieldGenerator::
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GenerateMergeFromCodedStream(io::Printer* printer) const {
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printer->Print(variables_,
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"int value;\n"
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"DO_((::google::protobuf::internal::WireFormatLite::ReadPrimitive<\n"
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" int, ::google::protobuf::internal::WireFormatLite::TYPE_ENUM>(\n"
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" input, &value)));\n");
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if (HasPreservingUnknownEnumSemantics(descriptor_->file())) {
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printer->Print(variables_,
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"set_$name$(static_cast< $type$ >(value));\n");
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} else {
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printer->Print(variables_,
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"if ($type$_IsValid(value)) {\n"
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" set_$name$(static_cast< $type$ >(value));\n");
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if (UseUnknownFieldSet(descriptor_->file(), options_)) {
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printer->Print(variables_,
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"} else {\n"
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" mutable_unknown_fields()->AddVarint(\n"
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" $number$, static_cast< ::google::protobuf::uint64>(value));\n");
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} else {
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printer->Print(
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"} else {\n"
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" unknown_fields_stream.WriteVarint32($tag$u);\n"
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" unknown_fields_stream.WriteVarint32(\n"
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" static_cast< ::google::protobuf::uint32>(value));\n",
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"tag", SimpleItoa(internal::WireFormat::MakeTag(descriptor_)));
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}
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printer->Print(variables_,
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"}\n");
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}
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}
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void EnumFieldGenerator::
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GenerateSerializeWithCachedSizes(io::Printer* printer) const {
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printer->Print(variables_,
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"::google::protobuf::internal::WireFormatLite::WriteEnum(\n"
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" $number$, this->$name$(), output);\n");
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}
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void EnumFieldGenerator::
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GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const {
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printer->Print(variables_,
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"target = ::google::protobuf::internal::WireFormatLite::WriteEnumToArray(\n"
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" $number$, this->$name$(), target);\n");
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}
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void EnumFieldGenerator::
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GenerateByteSize(io::Printer* printer) const {
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printer->Print(variables_,
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"total_size += $tag_size$ +\n"
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" ::google::protobuf::internal::WireFormatLite::EnumSize(this->$name$());\n");
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}
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// ===================================================================
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EnumOneofFieldGenerator::
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EnumOneofFieldGenerator(const FieldDescriptor* descriptor,
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const Options& options)
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: EnumFieldGenerator(descriptor, options) {
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SetCommonOneofFieldVariables(descriptor, &variables_);
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}
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EnumOneofFieldGenerator::~EnumOneofFieldGenerator() {}
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void EnumOneofFieldGenerator::
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GenerateInlineAccessorDefinitions(io::Printer* printer) const {
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printer->Print(variables_,
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"inline $type$ $classname$::$name$() const {\n"
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" // @@protoc_insertion_point(field_get:$full_name$)\n"
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" if (has_$name$()) {\n"
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" return static_cast< $type$ >($oneof_prefix$$name$_);\n"
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" }\n"
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" return static_cast< $type$ >($default$);\n"
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"}\n"
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"inline void $classname$::set_$name$($type$ value) {\n");
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if (!HasPreservingUnknownEnumSemantics(descriptor_->file())) {
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printer->Print(variables_,
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" assert($type$_IsValid(value));\n");
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}
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printer->Print(variables_,
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" if (!has_$name$()) {\n"
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" clear_$oneof_name$();\n"
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" set_has_$name$();\n"
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" }\n"
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" $oneof_prefix$$name$_ = value;\n"
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" // @@protoc_insertion_point(field_set:$full_name$)\n"
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"}\n");
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}
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void EnumOneofFieldGenerator::
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GenerateClearingCode(io::Printer* printer) const {
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printer->Print(variables_, "$oneof_prefix$$name$_ = $default$;\n");
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}
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void EnumOneofFieldGenerator::
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GenerateSwappingCode(io::Printer* printer) const {
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// Don't print any swapping code. Swapping the union will swap this field.
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}
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void EnumOneofFieldGenerator::
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GenerateConstructorCode(io::Printer* printer) const {
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printer->Print(variables_,
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"$ns$::_$classname$_default_instance_.$name$_ = $default$;\n");
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}
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// ===================================================================
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RepeatedEnumFieldGenerator::RepeatedEnumFieldGenerator(
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const FieldDescriptor* descriptor, const Options& options)
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: FieldGenerator(options), descriptor_(descriptor) {
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SetEnumVariables(descriptor, &variables_, options);
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}
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RepeatedEnumFieldGenerator::~RepeatedEnumFieldGenerator() {}
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void RepeatedEnumFieldGenerator::
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GeneratePrivateMembers(io::Printer* printer) const {
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printer->Print(variables_,
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"::google::protobuf::RepeatedField<int> $name$_;\n");
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if (descriptor_->is_packed() &&
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HasGeneratedMethods(descriptor_->file(), options_)) {
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printer->Print(variables_,
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"mutable int _$name$_cached_byte_size_;\n");
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}
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}
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void RepeatedEnumFieldGenerator::
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GenerateAccessorDeclarations(io::Printer* printer) const {
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printer->Print(variables_,
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"$deprecated_attr$$type$ $name$(int index) const;\n");
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printer->Annotate("name", descriptor_);
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printer->Print(
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variables_,
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"$deprecated_attr$void ${$set_$name$$}$(int index, $type$ value);\n");
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printer->Annotate("{", "}", descriptor_);
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printer->Print(variables_,
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"$deprecated_attr$void ${$add_$name$$}$($type$ value);\n");
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printer->Annotate("{", "}", descriptor_);
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printer->Print(
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variables_,
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"$deprecated_attr$const ::google::protobuf::RepeatedField<int>& $name$() const;\n");
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printer->Annotate("name", descriptor_);
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printer->Print(variables_,
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"$deprecated_attr$::google::protobuf::RepeatedField<int>* "
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"${$mutable_$name$$}$();\n");
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printer->Annotate("{", "}", descriptor_);
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}
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void RepeatedEnumFieldGenerator::
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GenerateInlineAccessorDefinitions(io::Printer* printer) const {
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printer->Print(variables_,
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"inline $type$ $classname$::$name$(int index) const {\n"
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" // @@protoc_insertion_point(field_get:$full_name$)\n"
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" return static_cast< $type$ >($name$_.Get(index));\n"
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"}\n"
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"inline void $classname$::set_$name$(int index, $type$ value) {\n");
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if (!HasPreservingUnknownEnumSemantics(descriptor_->file())) {
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printer->Print(variables_,
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" assert($type$_IsValid(value));\n");
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}
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printer->Print(variables_,
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" $name$_.Set(index, value);\n"
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" // @@protoc_insertion_point(field_set:$full_name$)\n"
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"}\n"
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"inline void $classname$::add_$name$($type$ value) {\n");
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if (!HasPreservingUnknownEnumSemantics(descriptor_->file())) {
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printer->Print(variables_,
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" assert($type$_IsValid(value));\n");
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}
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printer->Print(variables_,
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" $name$_.Add(value);\n"
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" // @@protoc_insertion_point(field_add:$full_name$)\n"
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"}\n"
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"inline const ::google::protobuf::RepeatedField<int>&\n"
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"$classname$::$name$() const {\n"
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" // @@protoc_insertion_point(field_list:$full_name$)\n"
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" return $name$_;\n"
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"}\n"
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"inline ::google::protobuf::RepeatedField<int>*\n"
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"$classname$::mutable_$name$() {\n"
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" // @@protoc_insertion_point(field_mutable_list:$full_name$)\n"
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" return &$name$_;\n"
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"}\n");
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}
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void RepeatedEnumFieldGenerator::
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GenerateClearingCode(io::Printer* printer) const {
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printer->Print(variables_, "$name$_.Clear();\n");
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}
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void RepeatedEnumFieldGenerator::
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GenerateMergingCode(io::Printer* printer) const {
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printer->Print(variables_, "$name$_.MergeFrom(from.$name$_);\n");
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}
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void RepeatedEnumFieldGenerator::
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GenerateSwappingCode(io::Printer* printer) const {
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printer->Print(variables_, "$name$_.InternalSwap(&other->$name$_);\n");
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}
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void RepeatedEnumFieldGenerator::
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GenerateConstructorCode(io::Printer* printer) const {
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// Not needed for repeated fields.
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}
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void RepeatedEnumFieldGenerator::
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GenerateMergeFromCodedStream(io::Printer* printer) const {
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// Don't use ReadRepeatedPrimitive here so that the enum can be validated.
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printer->Print(variables_,
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"int value;\n"
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"DO_((::google::protobuf::internal::WireFormatLite::ReadPrimitive<\n"
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" int, ::google::protobuf::internal::WireFormatLite::TYPE_ENUM>(\n"
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" input, &value)));\n");
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if (HasPreservingUnknownEnumSemantics(descriptor_->file())) {
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printer->Print(variables_,
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"add_$name$(static_cast< $type$ >(value));\n");
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} else {
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printer->Print(variables_,
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"if ($type$_IsValid(value)) {\n"
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" add_$name$(static_cast< $type$ >(value));\n");
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if (UseUnknownFieldSet(descriptor_->file(), options_)) {
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printer->Print(variables_,
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"} else {\n"
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" mutable_unknown_fields()->AddVarint(\n"
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" $number$, static_cast< ::google::protobuf::uint64>(value));\n");
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} else {
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printer->Print(
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"} else {\n"
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" unknown_fields_stream.WriteVarint32(tag);\n"
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" unknown_fields_stream.WriteVarint32(\n"
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" static_cast< ::google::protobuf::uint32>(value));\n");
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}
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printer->Print("}\n");
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}
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}
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void RepeatedEnumFieldGenerator::
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GenerateMergeFromCodedStreamWithPacking(io::Printer* printer) const {
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if (!descriptor_->is_packed()) {
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// This path is rarely executed, so we use a non-inlined implementation.
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if (HasPreservingUnknownEnumSemantics(descriptor_->file())) {
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printer->Print(variables_,
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"DO_((::google::protobuf::internal::"
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"WireFormatLite::ReadPackedEnumPreserveUnknowns(\n"
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" input,\n"
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" $number$,\n"
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" NULL,\n"
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" NULL,\n"
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" this->mutable_$name$())));\n");
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} else if (UseUnknownFieldSet(descriptor_->file(), options_)) {
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printer->Print(variables_,
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"DO_((::google::protobuf::internal::WireFormat::ReadPackedEnumPreserveUnknowns(\n"
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" input,\n"
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" $number$,\n"
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" $type$_IsValid,\n"
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" mutable_unknown_fields(),\n"
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" this->mutable_$name$())));\n");
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} else {
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printer->Print(variables_,
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"DO_((::google::protobuf::internal::"
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"WireFormatLite::ReadPackedEnumPreserveUnknowns(\n"
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" input,\n"
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" $number$,\n"
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" $type$_IsValid,\n"
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" &unknown_fields_stream,\n"
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" this->mutable_$name$())));\n");
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}
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} else {
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printer->Print(variables_,
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"::google::protobuf::uint32 length;\n"
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"DO_(input->ReadVarint32(&length));\n"
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"::google::protobuf::io::CodedInputStream::Limit limit = "
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"input->PushLimit(static_cast<int>(length));\n"
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"while (input->BytesUntilLimit() > 0) {\n"
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" int value;\n"
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" DO_((::google::protobuf::internal::WireFormatLite::ReadPrimitive<\n"
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" int, ::google::protobuf::internal::WireFormatLite::TYPE_ENUM>(\n"
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" input, &value)));\n");
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if (HasPreservingUnknownEnumSemantics(descriptor_->file())) {
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printer->Print(variables_,
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" add_$name$(static_cast< $type$ >(value));\n");
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} else {
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printer->Print(variables_,
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" if ($type$_IsValid(value)) {\n"
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" add_$name$(static_cast< $type$ >(value));\n"
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" } else {\n");
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if (UseUnknownFieldSet(descriptor_->file(), options_)) {
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printer->Print(variables_,
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" mutable_unknown_fields()->AddVarint(\n"
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" $number$, static_cast< ::google::protobuf::uint64>(value));\n");
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} else {
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printer->Print(variables_,
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" unknown_fields_stream.WriteVarint32(tag);\n"
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" unknown_fields_stream.WriteVarint32(\n"
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" static_cast< ::google::protobuf::uint32>(value));\n");
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}
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printer->Print(
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" }\n");
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}
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printer->Print(variables_,
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"}\n"
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"input->PopLimit(limit);\n");
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}
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}
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void RepeatedEnumFieldGenerator::
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GenerateSerializeWithCachedSizes(io::Printer* printer) const {
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if (descriptor_->is_packed()) {
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// Write the tag and the size.
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printer->Print(variables_,
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"if (this->$name$_size() > 0) {\n"
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" ::google::protobuf::internal::WireFormatLite::WriteTag(\n"
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" $number$,\n"
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" ::google::protobuf::internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED,\n"
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" output);\n"
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" output->WriteVarint32(\n"
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" static_cast< ::google::protobuf::uint32>(_$name$_cached_byte_size_));\n"
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"}\n");
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}
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printer->Print(variables_,
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"for (int i = 0, n = this->$name$_size(); i < n; i++) {\n");
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if (descriptor_->is_packed()) {
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printer->Print(variables_,
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" ::google::protobuf::internal::WireFormatLite::WriteEnumNoTag(\n"
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" this->$name$(i), output);\n");
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} else {
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printer->Print(variables_,
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" ::google::protobuf::internal::WireFormatLite::WriteEnum(\n"
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" $number$, this->$name$(i), output);\n");
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}
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printer->Print("}\n");
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}
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void RepeatedEnumFieldGenerator::
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GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const {
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if (descriptor_->is_packed()) {
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// Write the tag and the size.
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printer->Print(variables_,
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"if (this->$name$_size() > 0) {\n"
|
|
" target = ::google::protobuf::internal::WireFormatLite::WriteTagToArray(\n"
|
|
" $number$,\n"
|
|
" ::google::protobuf::internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED,\n"
|
|
" target);\n"
|
|
" target = ::google::protobuf::io::CodedOutputStream::WriteVarint32ToArray("
|
|
" static_cast< ::google::protobuf::uint32>(\n"
|
|
" _$name$_cached_byte_size_), target);\n"
|
|
" target = ::google::protobuf::internal::WireFormatLite::WriteEnumNoTagToArray(\n"
|
|
" this->$name$_, target);\n"
|
|
"}\n");
|
|
} else {
|
|
printer->Print(variables_,
|
|
"target = ::google::protobuf::internal::WireFormatLite::WriteEnumToArray(\n"
|
|
" $number$, this->$name$_, target);\n");
|
|
}
|
|
}
|
|
|
|
void RepeatedEnumFieldGenerator::
|
|
GenerateByteSize(io::Printer* printer) const {
|
|
printer->Print(variables_,
|
|
"{\n"
|
|
" size_t data_size = 0;\n"
|
|
" unsigned int count = static_cast<unsigned int>(this->$name$_size());");
|
|
printer->Indent();
|
|
printer->Print(variables_,
|
|
"for (unsigned int i = 0; i < count; i++) {\n"
|
|
" data_size += ::google::protobuf::internal::WireFormatLite::EnumSize(\n"
|
|
" this->$name$(static_cast<int>(i)));\n"
|
|
"}\n");
|
|
|
|
if (descriptor_->is_packed()) {
|
|
printer->Print(variables_,
|
|
"if (data_size > 0) {\n"
|
|
" total_size += $tag_size$ +\n"
|
|
" ::google::protobuf::internal::WireFormatLite::Int32Size(\n"
|
|
" static_cast< ::google::protobuf::int32>(data_size));\n"
|
|
"}\n"
|
|
"int cached_size = ::google::protobuf::internal::ToCachedSize(data_size);\n"
|
|
"GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();\n"
|
|
"_$name$_cached_byte_size_ = cached_size;\n"
|
|
"GOOGLE_SAFE_CONCURRENT_WRITES_END();\n"
|
|
"total_size += data_size;\n");
|
|
} else {
|
|
printer->Print(variables_,
|
|
"total_size += ($tag_size$UL * count) + data_size;\n");
|
|
}
|
|
printer->Outdent();
|
|
printer->Print("}\n");
|
|
}
|
|
|
|
} // namespace cpp
|
|
} // namespace compiler
|
|
} // namespace protobuf
|
|
} // namespace google
|