diff options
Diffstat (limited to 'src/google/protobuf/compiler/cpp/cpp_primitive_field.cc')
| -rw-r--r-- | src/google/protobuf/compiler/cpp/cpp_primitive_field.cc | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc b/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc new file mode 100644 index 00000000..312ed031 --- /dev/null +++ b/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc @@ -0,0 +1,294 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. +// http://code.google.com/p/protobuf/ +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// 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_primitive_field.h> +#include <google/protobuf/compiler/cpp/cpp_helpers.h> +#include <google/protobuf/io/printer.h> +#include <google/protobuf/wire_format_inl.h> +#include <google/protobuf/stubs/strutil.h> + +namespace google { +namespace protobuf { +namespace compiler { +namespace cpp { + +using internal::WireFormat; + +namespace { + +// For encodings with fixed sizes, returns that size in bytes. Otherwise +// returns -1. +int FixedSize(FieldDescriptor::Type type) { + switch (type) { + case FieldDescriptor::TYPE_INT32 : return -1; + case FieldDescriptor::TYPE_INT64 : return -1; + case FieldDescriptor::TYPE_UINT32 : return -1; + case FieldDescriptor::TYPE_UINT64 : return -1; + case FieldDescriptor::TYPE_SINT32 : return -1; + case FieldDescriptor::TYPE_SINT64 : return -1; + case FieldDescriptor::TYPE_FIXED32 : return WireFormat::kFixed32Size; + case FieldDescriptor::TYPE_FIXED64 : return WireFormat::kFixed64Size; + case FieldDescriptor::TYPE_SFIXED32: return WireFormat::kSFixed32Size; + case FieldDescriptor::TYPE_SFIXED64: return WireFormat::kSFixed64Size; + case FieldDescriptor::TYPE_FLOAT : return WireFormat::kFloatSize; + case FieldDescriptor::TYPE_DOUBLE : return WireFormat::kDoubleSize; + + case FieldDescriptor::TYPE_BOOL : return WireFormat::kBoolSize; + case FieldDescriptor::TYPE_ENUM : return -1; + + case FieldDescriptor::TYPE_STRING : return -1; + case FieldDescriptor::TYPE_BYTES : return -1; + case FieldDescriptor::TYPE_GROUP : return -1; + case FieldDescriptor::TYPE_MESSAGE : return -1; + + // No default because we want the compiler to complain if any new + // types are added. + } + GOOGLE_LOG(FATAL) << "Can't get here."; + return -1; +} + +string DefaultValue(const FieldDescriptor* field) { + switch (field->cpp_type()) { + case FieldDescriptor::CPPTYPE_INT32: + return SimpleItoa(field->default_value_int32()); + case FieldDescriptor::CPPTYPE_UINT32: + return SimpleItoa(field->default_value_uint32()) + "u"; + case FieldDescriptor::CPPTYPE_INT64: + return "GOOGLE_LONGLONG(" + SimpleItoa(field->default_value_int64()) + ")"; + case FieldDescriptor::CPPTYPE_UINT64: + return "GOOGLE_ULONGLONG(" + SimpleItoa(field->default_value_uint64())+ ")"; + case FieldDescriptor::CPPTYPE_DOUBLE: + return SimpleDtoa(field->default_value_double()); + case FieldDescriptor::CPPTYPE_FLOAT: + return SimpleFtoa(field->default_value_float()); + case FieldDescriptor::CPPTYPE_BOOL: + return field->default_value_bool() ? "true" : "false"; + + case FieldDescriptor::CPPTYPE_ENUM: + case FieldDescriptor::CPPTYPE_STRING: + case FieldDescriptor::CPPTYPE_MESSAGE: + GOOGLE_LOG(FATAL) << "Shouldn't get here."; + return ""; + } + // Can't actually get here; make compiler happy. (We could add a default + // case above but then we wouldn't get the nice compiler warning when a + // new type is added.) + return ""; +} + +// TODO(kenton): Factor out a "SetCommonFieldVariables()" to get rid of +// repeat code between this and the other field types. +void SetPrimitiveVariables(const FieldDescriptor* descriptor, + map<string, string>* variables) { + (*variables)["name"] = FieldName(descriptor); + (*variables)["type"] = PrimitiveTypeName(descriptor->cpp_type()); + (*variables)["default"] = DefaultValue(descriptor); + (*variables)["index"] = SimpleItoa(descriptor->index()); + (*variables)["number"] = SimpleItoa(descriptor->number()); + (*variables)["classname"] = ClassName(FieldScope(descriptor), false); + (*variables)["declared_type"] = DeclaredTypeMethodName(descriptor->type()); + (*variables)["tag_size"] = SimpleItoa( + WireFormat::TagSize(descriptor->number(), descriptor->type())); + + int fixed_size = FixedSize(descriptor->type()); + if (fixed_size != -1) { + (*variables)["fixed_size"] = SimpleItoa(fixed_size); + } +} + +} // namespace + +// =================================================================== + +PrimitiveFieldGenerator:: +PrimitiveFieldGenerator(const FieldDescriptor* descriptor) + : descriptor_(descriptor) { + SetPrimitiveVariables(descriptor, &variables_); +} + +PrimitiveFieldGenerator::~PrimitiveFieldGenerator() {} + +void PrimitiveFieldGenerator:: +GeneratePrivateMembers(io::Printer* printer) const { + printer->Print(variables_, "$type$ $name$_;\n"); +} + +void PrimitiveFieldGenerator:: +GenerateAccessorDeclarations(io::Printer* printer) const { + printer->Print(variables_, + "inline $type$ $name$() const;\n" + "inline void set_$name$($type$ value);\n"); +} + +void PrimitiveFieldGenerator:: +GenerateInlineAccessorDefinitions(io::Printer* printer) const { + printer->Print(variables_, + "inline $type$ $classname$::$name$() const {\n" + " return $name$_;\n" + "}\n" + "inline void $classname$::set_$name$($type$ value) {\n" + " _set_bit($index$);\n" + " $name$_ = value;\n" + "}\n"); +} + +void PrimitiveFieldGenerator:: +GenerateClearingCode(io::Printer* printer) const { + printer->Print(variables_, "$name$_ = $default$;\n"); +} + +void PrimitiveFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, "set_$name$(from.$name$());\n"); +} + +void PrimitiveFieldGenerator:: +GenerateInitializer(io::Printer* printer) const { + printer->Print(variables_, ",\n$name$_($default$)"); +} + +void PrimitiveFieldGenerator:: +GenerateMergeFromCodedStream(io::Printer* printer) const { + printer->Print(variables_, + "DO_(::google::protobuf::internal::WireFormat::Read$declared_type$(\n" + " input, &$name$_));\n" + "_set_bit($index$);\n"); +} + +void PrimitiveFieldGenerator:: +GenerateSerializeWithCachedSizes(io::Printer* printer) const { + printer->Print(variables_, + "DO_(::google::protobuf::internal::WireFormat::Write$declared_type$(" + "$number$, this->$name$(), output));\n"); +} + +void PrimitiveFieldGenerator:: +GenerateByteSize(io::Printer* printer) const { + int fixed_size = FixedSize(descriptor_->type()); + if (fixed_size == -1) { + printer->Print(variables_, + "total_size += $tag_size$ +\n" + " ::google::protobuf::internal::WireFormat::$declared_type$Size(\n" + " this->$name$());\n"); + } else { + printer->Print(variables_, + "total_size += $tag_size$ + $fixed_size$;\n"); + } +} + +// =================================================================== + +RepeatedPrimitiveFieldGenerator:: +RepeatedPrimitiveFieldGenerator(const FieldDescriptor* descriptor) + : descriptor_(descriptor) { + SetPrimitiveVariables(descriptor, &variables_); +} + +RepeatedPrimitiveFieldGenerator::~RepeatedPrimitiveFieldGenerator() {} + +void RepeatedPrimitiveFieldGenerator:: +GeneratePrivateMembers(io::Printer* printer) const { + printer->Print(variables_, + "::google::protobuf::RepeatedField< $type$ > $name$_;\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateAccessorDeclarations(io::Printer* printer) const { + printer->Print(variables_, + "inline const ::google::protobuf::RepeatedField< $type$ >& $name$() const;\n" + "inline ::google::protobuf::RepeatedField< $type$ >* mutable_$name$();\n" + "inline $type$ $name$(int index) const;\n" + "inline void set_$name$(int index, $type$ value);\n" + "inline void add_$name$($type$ value);\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateInlineAccessorDefinitions(io::Printer* printer) const { + printer->Print(variables_, + "inline const ::google::protobuf::RepeatedField< $type$ >&\n" + "$classname$::$name$() const {\n" + " return $name$_;\n" + "}\n" + "inline ::google::protobuf::RepeatedField< $type$ >*\n" + "$classname$::mutable_$name$() {\n" + " return &$name$_;\n" + "}\n" + "inline $type$ $classname$::$name$(int index) const {\n" + " return $name$_.Get(index);\n" + "}\n" + "inline void $classname$::set_$name$(int index, $type$ value) {\n" + " $name$_.Set(index, value);\n" + "}\n" + "inline void $classname$::add_$name$($type$ value) {\n" + " $name$_.Add(value);\n" + "}\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateClearingCode(io::Printer* printer) const { + printer->Print(variables_, "$name$_.Clear();\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, "$name$_.MergeFrom(from.$name$_);\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateInitializer(io::Printer* printer) const { + // Not needed for repeated fields. +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateMergeFromCodedStream(io::Printer* printer) const { + printer->Print(variables_, + "$type$ value;\n" + "DO_(::google::protobuf::internal::WireFormat::Read$declared_type$(input, &value));\n" + "add_$name$(value);\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateSerializeWithCachedSizes(io::Printer* printer) const { + printer->Print(variables_, + "DO_(::google::protobuf::internal::WireFormat::Write$declared_type$(" + "$number$, this->$name$(i), output));\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateByteSize(io::Printer* printer) const { + int fixed_size = FixedSize(descriptor_->type()); + if (fixed_size == -1) { + printer->Print(variables_, + "total_size += $tag_size$ * $name$_size();\n" + "for (int i = 0; i < $name$_size(); i++) {\n" + " total_size += ::google::protobuf::internal::WireFormat::$declared_type$Size(\n" + " this->$name$(i));\n" + "}\n"); + } else { + printer->Print(variables_, + "total_size += ($tag_size$ + $fixed_size$) * $name$_size();\n"); + } +} + +} // namespace cpp +} // namespace compiler +} // namespace protobuf +} // namespace google |