aboutsummaryrefslogtreecommitdiffstats
path: root/src/google/protobuf/compiler/cpp/cpp_enum_field.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/google/protobuf/compiler/cpp/cpp_enum_field.cc')
-rw-r--r--src/google/protobuf/compiler/cpp/cpp_enum_field.cc342
1 files changed, 342 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/cpp/cpp_enum_field.cc b/src/google/protobuf/compiler/cpp/cpp_enum_field.cc
new file mode 100644
index 0000000..7ca11c8
--- /dev/null
+++ b/src/google/protobuf/compiler/cpp/cpp_enum_field.cc
@@ -0,0 +1,342 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// http://code.google.com/p/protobuf/
+//
+// 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: kenton@google.com (Kenton Varda)
+// Based on original Protocol Buffers design by
+// Sanjay Ghemawat, Jeff Dean, and others.
+
+#include <google/protobuf/compiler/cpp/cpp_enum_field.h>
+#include <google/protobuf/compiler/cpp/cpp_helpers.h>
+#include <google/protobuf/io/printer.h>
+#include <google/protobuf/descriptor.pb.h>
+#include <google/protobuf/stubs/strutil.h>
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+namespace cpp {
+
+namespace {
+
+void SetEnumVariables(const FieldDescriptor* descriptor,
+ map<string, string>* variables) {
+ SetCommonFieldVariables(descriptor, variables);
+ const EnumValueDescriptor* default_value = descriptor->default_value_enum();
+ (*variables)["type"] = ClassName(descriptor->enum_type(), true);
+ (*variables)["default"] = SimpleItoa(default_value->number());
+}
+
+} // namespace
+
+// ===================================================================
+
+EnumFieldGenerator::
+EnumFieldGenerator(const FieldDescriptor* descriptor)
+ : descriptor_(descriptor) {
+ SetEnumVariables(descriptor, &variables_);
+}
+
+EnumFieldGenerator::~EnumFieldGenerator() {}
+
+void EnumFieldGenerator::
+GeneratePrivateMembers(io::Printer* printer) const {
+ printer->Print(variables_, "int $name$_;\n");
+}
+
+void EnumFieldGenerator::
+GenerateAccessorDeclarations(io::Printer* printer) const {
+ printer->Print(variables_,
+ "inline $type$ $name$() const$deprecation$;\n"
+ "inline void set_$name$($type$ value)$deprecation$;\n");
+}
+
+void EnumFieldGenerator::
+GenerateInlineAccessorDefinitions(io::Printer* printer) const {
+ printer->Print(variables_,
+ "inline $type$ $classname$::$name$() const {\n"
+ " return static_cast< $type$ >($name$_);\n"
+ "}\n"
+ "inline void $classname$::set_$name$($type$ value) {\n"
+ " GOOGLE_DCHECK($type$_IsValid(value));\n"
+ " _set_bit($index$);\n"
+ " $name$_ = value;\n"
+ "}\n");
+}
+
+void EnumFieldGenerator::
+GenerateClearingCode(io::Printer* printer) const {
+ printer->Print(variables_, "$name$_ = $default$;\n");
+}
+
+void EnumFieldGenerator::
+GenerateMergingCode(io::Printer* printer) const {
+ printer->Print(variables_, "set_$name$(from.$name$());\n");
+}
+
+void EnumFieldGenerator::
+GenerateSwappingCode(io::Printer* printer) const {
+ printer->Print(variables_, "std::swap($name$_, other->$name$_);\n");
+}
+
+void EnumFieldGenerator::
+GenerateConstructorCode(io::Printer* printer) const {
+ printer->Print(variables_, "$name$_ = $default$;\n");
+}
+
+void EnumFieldGenerator::
+GenerateMergeFromCodedStream(io::Printer* printer) const {
+ printer->Print(variables_,
+ "int value;\n"
+ "DO_(::google::protobuf::internal::WireFormatLite::ReadEnum(input, &value));\n"
+ "if ($type$_IsValid(value)) {\n"
+ " set_$name$(static_cast< $type$ >(value));\n");
+ if (HasUnknownFields(descriptor_->file())) {
+ printer->Print(variables_,
+ "} else {\n"
+ " mutable_unknown_fields()->AddVarint($number$, value);\n");
+ }
+ printer->Print(variables_,
+ "}\n");
+}
+
+void EnumFieldGenerator::
+GenerateSerializeWithCachedSizes(io::Printer* printer) const {
+ printer->Print(variables_,
+ "::google::protobuf::internal::WireFormatLite::WriteEnum(\n"
+ " $number$, this->$name$(), output);\n");
+}
+
+void EnumFieldGenerator::
+GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const {
+ printer->Print(variables_,
+ "target = ::google::protobuf::internal::WireFormatLite::WriteEnumToArray(\n"
+ " $number$, this->$name$(), target);\n");
+}
+
+void EnumFieldGenerator::
+GenerateByteSize(io::Printer* printer) const {
+ printer->Print(variables_,
+ "total_size += $tag_size$ +\n"
+ " ::google::protobuf::internal::WireFormatLite::EnumSize(this->$name$());\n");
+}
+
+// ===================================================================
+
+RepeatedEnumFieldGenerator::
+RepeatedEnumFieldGenerator(const FieldDescriptor* descriptor)
+ : descriptor_(descriptor) {
+ SetEnumVariables(descriptor, &variables_);
+}
+
+RepeatedEnumFieldGenerator::~RepeatedEnumFieldGenerator() {}
+
+void RepeatedEnumFieldGenerator::
+GeneratePrivateMembers(io::Printer* printer) const {
+ printer->Print(variables_,
+ "::google::protobuf::RepeatedField<int> $name$_;\n");
+ if (descriptor_->options().packed() && HasGeneratedMethods(descriptor_->file())) {
+ printer->Print(variables_,
+ "mutable int _$name$_cached_byte_size_;\n");
+ }
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateAccessorDeclarations(io::Printer* printer) const {
+ printer->Print(variables_,
+ "inline const ::google::protobuf::RepeatedField<int>& $name$() const$deprecation$;\n"
+ "inline ::google::protobuf::RepeatedField<int>* mutable_$name$()$deprecation$;\n"
+ "inline $type$ $name$(int index) const$deprecation$;\n"
+ "inline void set_$name$(int index, $type$ value)$deprecation$;\n"
+ "inline void add_$name$($type$ value)$deprecation$;\n");
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateInlineAccessorDefinitions(io::Printer* printer) const {
+ printer->Print(variables_,
+ "inline const ::google::protobuf::RepeatedField<int>&\n"
+ "$classname$::$name$() const {\n"
+ " return $name$_;\n"
+ "}\n"
+ "inline ::google::protobuf::RepeatedField<int>*\n"
+ "$classname$::mutable_$name$() {\n"
+ " return &$name$_;\n"
+ "}\n"
+ "inline $type$ $classname$::$name$(int index) const {\n"
+ " return static_cast< $type$ >($name$_.Get(index));\n"
+ "}\n"
+ "inline void $classname$::set_$name$(int index, $type$ value) {\n"
+ " GOOGLE_DCHECK($type$_IsValid(value));\n"
+ " $name$_.Set(index, value);\n"
+ "}\n"
+ "inline void $classname$::add_$name$($type$ value) {\n"
+ " GOOGLE_DCHECK($type$_IsValid(value));\n"
+ " $name$_.Add(value);\n"
+ "}\n");
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateClearingCode(io::Printer* printer) const {
+ printer->Print(variables_, "$name$_.Clear();\n");
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateMergingCode(io::Printer* printer) const {
+ printer->Print(variables_, "$name$_.MergeFrom(from.$name$_);\n");
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateSwappingCode(io::Printer* printer) const {
+ printer->Print(variables_, "$name$_.Swap(&other->$name$_);\n");
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateConstructorCode(io::Printer* printer) const {
+ // Not needed for repeated fields.
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateMergeFromCodedStream(io::Printer* printer) const {
+ if (descriptor_->options().packed()) {
+ printer->Print(variables_,
+ "::google::protobuf::uint32 length;\n"
+ "DO_(input->ReadVarint32(&length));\n"
+ "::google::protobuf::io::CodedInputStream::Limit limit = "
+ "input->PushLimit(length);\n"
+ "while (input->BytesUntilLimit() > 0) {\n"
+ " int value;\n"
+ " DO_(::google::protobuf::internal::WireFormatLite::ReadEnum(input, &value));\n"
+ " if ($type$_IsValid(value)) {\n"
+ " add_$name$(static_cast< $type$ >(value));\n"
+ " }\n"
+ "}\n"
+ "input->PopLimit(limit);\n");
+ } else {
+ printer->Print(variables_,
+ "int value;\n"
+ "DO_(::google::protobuf::internal::WireFormatLite::ReadEnum(input, &value));\n"
+ "if ($type$_IsValid(value)) {\n"
+ " add_$name$(static_cast< $type$ >(value));\n");
+ if (HasUnknownFields(descriptor_->file())) {
+ printer->Print(variables_,
+ "} else {\n"
+ " mutable_unknown_fields()->AddVarint($number$, value);\n");
+ }
+ printer->Print(variables_,
+ "}\n");
+ }
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateSerializeWithCachedSizes(io::Printer* printer) const {
+ if (descriptor_->options().packed()) {
+ // Write the tag and the size.
+ printer->Print(variables_,
+ "if (this->$name$_size() > 0) {\n"
+ " ::google::protobuf::internal::WireFormatLite::WriteTag(\n"
+ " $number$,\n"
+ " ::google::protobuf::internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED,\n"
+ " output);\n"
+ " output->WriteVarint32(_$name$_cached_byte_size_);\n"
+ "}\n");
+ }
+ printer->Print(variables_,
+ "for (int i = 0; i < this->$name$_size(); i++) {\n");
+ if (descriptor_->options().packed()) {
+ printer->Print(variables_,
+ " ::google::protobuf::internal::WireFormatLite::WriteEnumNoTag(\n"
+ " this->$name$(i), output);\n");
+ } else {
+ printer->Print(variables_,
+ " ::google::protobuf::internal::WireFormatLite::WriteEnum(\n"
+ " $number$, this->$name$(i), output);\n");
+ }
+ printer->Print("}\n");
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const {
+ if (descriptor_->options().packed()) {
+ // Write the tag and the size.
+ printer->Print(variables_,
+ "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("
+ " _$name$_cached_byte_size_, target);\n"
+ "}\n");
+ }
+ printer->Print(variables_,
+ "for (int i = 0; i < this->$name$_size(); i++) {\n");
+ if (descriptor_->options().packed()) {
+ printer->Print(variables_,
+ " target = ::google::protobuf::internal::WireFormatLite::WriteEnumNoTagToArray(\n"
+ " this->$name$(i), target);\n");
+ } else {
+ printer->Print(variables_,
+ " target = ::google::protobuf::internal::WireFormatLite::WriteEnumToArray(\n"
+ " $number$, this->$name$(i), target);\n");
+ }
+ printer->Print("}\n");
+}
+
+void RepeatedEnumFieldGenerator::
+GenerateByteSize(io::Printer* printer) const {
+ printer->Print(variables_,
+ "{\n"
+ " int data_size = 0;\n");
+ printer->Indent();
+ printer->Print(variables_,
+ "for (int i = 0; i < this->$name$_size(); i++) {\n"
+ " data_size += ::google::protobuf::internal::WireFormatLite::EnumSize(\n"
+ " this->$name$(i));\n"
+ "}\n");
+
+ if (descriptor_->options().packed()) {
+ printer->Print(variables_,
+ "if (data_size > 0) {\n"
+ " total_size += $tag_size$ +\n"
+ " ::google::protobuf::internal::WireFormatLite::Int32Size(data_size);\n"
+ "}\n"
+ "_$name$_cached_byte_size_ = data_size;\n"
+ "total_size += data_size;\n");
+ } else {
+ printer->Print(variables_,
+ "total_size += $tag_size$ * this->$name$_size() + data_size;\n");
+ }
+ printer->Outdent();
+ printer->Print("}\n");
+}
+
+} // namespace cpp
+} // namespace compiler
+} // namespace protobuf
+} // namespace google
generated by cgit v1.1 at 2025-07-03 10:54:31 +0000