From 40ee551715c3a784ea6132dbf604b0e665ca2def Mon Sep 17 00:00:00 2001 From: temporal Date: Thu, 10 Jul 2008 02:12:20 +0000 Subject: Initial checkin. --- .../protobuf/compiler/cpp/cpp_string_field.cc | 336 +++++++++++++++++++++ 1 file changed, 336 insertions(+) create mode 100644 src/google/protobuf/compiler/cpp/cpp_string_field.cc (limited to 'src/google/protobuf/compiler/cpp/cpp_string_field.cc') diff --git a/src/google/protobuf/compiler/cpp/cpp_string_field.cc b/src/google/protobuf/compiler/cpp/cpp_string_field.cc new file mode 100644 index 00000000..de59ac87 --- /dev/null +++ b/src/google/protobuf/compiler/cpp/cpp_string_field.cc @@ -0,0 +1,336 @@ +// 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 +#include +#include +#include +#include +#include + +namespace google { +namespace protobuf { +namespace compiler { +namespace cpp { + +using internal::WireFormat; + +namespace { + +// TODO(kenton): Factor out a "SetCommonFieldVariables()" to get rid of +// repeat code between this and the other field types. +void SetStringVariables(const FieldDescriptor* descriptor, + map* variables) { + (*variables)["name"] = FieldName(descriptor); + (*variables)["default"] = + "\"" + CEscape(descriptor->default_value_string()) + "\""; + (*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())); +} + +} // namespace + +// =================================================================== + +StringFieldGenerator:: +StringFieldGenerator(const FieldDescriptor* descriptor) + : descriptor_(descriptor) { + SetStringVariables(descriptor, &variables_); +} + +StringFieldGenerator::~StringFieldGenerator() {} + +void StringFieldGenerator:: +GeneratePrivateMembers(io::Printer* printer) const { + printer->Print(variables_, + "::std::string* $name$_;\n" + "static const ::std::string _default_$name$_;\n"); +} + +void StringFieldGenerator:: +GenerateAccessorDeclarations(io::Printer* printer) const { + // If we're using StringFieldGenerator for a field with a ctype, it's + // because that ctype isn't actually implemented. In particular, this is + // true of ctype=CORD and ctype=STRING_PIECE in the open source release. + // We aren't releasing Cord because it has too many Google-specific + // dependencies and we aren't releasing StringPiece because it's hardly + // useful outside of Google and because it would get confusing to have + // multiple instances of the StringPiece class in different libraries (PCRE + // already includes it for their C++ bindings, which came from Google). + // + // In any case, we make all the accessors private while still actually + // using a string to represent the field internally. This way, we can + // guarantee that if we do ever implement the ctype, it won't break any + // existing users who might be -- for whatever reason -- already using .proto + // files that applied the ctype. The field can still be accessed via the + // reflection interface since the reflection interface is independent of + // the string's underlying representation. + if (descriptor_->options().has_ctype()) { + printer->Outdent(); + printer->Print( + " private:\n" + " // Hidden due to unknown ctype option.\n"); + printer->Indent(); + } + + printer->Print(variables_, + "inline const ::std::string& $name$() const;\n" + "inline void set_$name$(const ::std::string& value);\n" + "inline void set_$name$(const char* value);\n"); + + printer->Print(variables_, + "inline ::std::string* mutable_$name$();\n"); + + if (descriptor_->options().has_ctype()) { + printer->Outdent(); + printer->Print(" public:\n"); + printer->Indent(); + } +} + +void StringFieldGenerator:: +GenerateInlineAccessorDefinitions(io::Printer* printer) const { + printer->Print(variables_, + "inline const ::std::string& $classname$::$name$() const {\n" + " return *$name$_;\n" + "}\n" + "inline void $classname$::set_$name$(const ::std::string& value) {\n" + " _set_bit($index$);\n" + " if ($name$_ == &_default_$name$_) {\n" + " $name$_ = new ::std::string;\n" + " }\n" + " $name$_->assign(value);\n" + "}\n" + "inline void $classname$::set_$name$(const char* value) {\n" + " _set_bit($index$);\n" + " if ($name$_ == &_default_$name$_) {\n" + " $name$_ = new ::std::string;\n" + " }\n" + " $name$_->assign(value);\n" + "}\n"); + printer->Print(variables_, + "inline ::std::string* $classname$::mutable_$name$() {\n" + " _set_bit($index$);\n" + " if ($name$_ == &_default_$name$_) {\n"); + if (descriptor_->has_default_value()) { + printer->Print(variables_, + " $name$_ = new ::std::string(_default_$name$_);\n"); + } else { + printer->Print(variables_, + " $name$_ = new ::std::string;\n"); + } + printer->Print(variables_, + " }\n" + " return $name$_;\n" + "}\n"); +} + +void StringFieldGenerator:: +GenerateNonInlineAccessorDefinitions(io::Printer* printer) const { + if (descriptor_->has_default_value()) { + printer->Print(variables_, + "const ::std::string $classname$::_default_$name$_($default$);"); + } else { + printer->Print(variables_, + "const ::std::string $classname$::_default_$name$_;"); + } +} + +void StringFieldGenerator:: +GenerateClearingCode(io::Printer* printer) const { + if (descriptor_->has_default_value()) { + printer->Print(variables_, + "if ($name$_ != &_default_$name$_) {\n" + " $name$_->assign(_default_$name$_);\n" + "}\n"); + } else { + printer->Print(variables_, + "if ($name$_ != &_default_$name$_) {\n" + " $name$_->clear();\n" + "}\n"); + } +} + +void StringFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, "set_$name$(from.$name$());\n"); +} + +void StringFieldGenerator:: +GenerateInitializer(io::Printer* printer) const { + printer->Print(variables_, + ",\n$name$_(const_cast< ::std::string*>(&_default_$name$_))"); +} + +void StringFieldGenerator:: +GenerateDestructorCode(io::Printer* printer) const { + printer->Print(variables_, + "if ($name$_ != &_default_$name$_) {\n" + " delete $name$_;\n" + "}\n"); +} + +void StringFieldGenerator:: +GenerateMergeFromCodedStream(io::Printer* printer) const { + printer->Print(variables_, + "DO_(::google::protobuf::internal::WireFormat::Read$declared_type$(" + "input, mutable_$name$()));\n"); +} + +void StringFieldGenerator:: +GenerateSerializeWithCachedSizes(io::Printer* printer) const { + printer->Print(variables_, + "DO_(::google::protobuf::internal::WireFormat::Write$declared_type$(" + "$number$, this->$name$(), output));\n"); +} + +void StringFieldGenerator:: +GenerateByteSize(io::Printer* printer) const { + printer->Print(variables_, + "total_size += $tag_size$ +\n" + " ::google::protobuf::internal::WireFormat::$declared_type$Size(this->$name$());\n"); +} + +// =================================================================== + +RepeatedStringFieldGenerator:: +RepeatedStringFieldGenerator(const FieldDescriptor* descriptor) + : descriptor_(descriptor) { + SetStringVariables(descriptor, &variables_); +} + +RepeatedStringFieldGenerator::~RepeatedStringFieldGenerator() {} + +void RepeatedStringFieldGenerator:: +GeneratePrivateMembers(io::Printer* printer) const { + printer->Print(variables_, + "::google::protobuf::RepeatedPtrField< ::std::string> $name$_;\n"); +} + +void RepeatedStringFieldGenerator:: +GenerateAccessorDeclarations(io::Printer* printer) const { + // See comment above about unknown ctypes. + if (descriptor_->options().has_ctype()) { + printer->Outdent(); + printer->Print( + " private:\n" + " // Hidden due to unknown ctype option.\n"); + printer->Indent(); + } + + printer->Print(variables_, + "inline const ::google::protobuf::RepeatedPtrField< ::std::string>& $name$() const;\n" + "inline ::google::protobuf::RepeatedPtrField< ::std::string>* mutable_$name$();\n" + "inline const ::std::string& $name$(int index) const;\n" + "inline ::std::string* mutable_$name$(int index);\n" + "inline void set_$name$(int index, const ::std::string& value);\n" + "inline void set_$name$(int index, const char* value);\n" + "inline ::std::string* add_$name$();\n" + "inline void add_$name$(const ::std::string& value);\n" + "inline void add_$name$(const char* value);\n"); + + if (descriptor_->options().has_ctype()) { + printer->Outdent(); + printer->Print(" public:\n"); + printer->Indent(); + } +} + +void RepeatedStringFieldGenerator:: +GenerateInlineAccessorDefinitions(io::Printer* printer) const { + printer->Print(variables_, + "inline const ::google::protobuf::RepeatedPtrField< ::std::string>&\n" + "$classname$::$name$() const {\n" + " return $name$_;\n" + "}\n" + "inline ::google::protobuf::RepeatedPtrField< ::std::string>*\n" + "$classname$::mutable_$name$() {\n" + " return &$name$_;\n" + "}\n" + "inline const ::std::string& $classname$::$name$(int index) const {\n" + " return $name$_.Get(index);\n" + "}\n" + "inline ::std::string* $classname$::mutable_$name$(int index) {\n" + " return $name$_.Mutable(index);\n" + "}\n" + "inline void $classname$::set_$name$(int index, const ::std::string& value) {\n" + " $name$_.Mutable(index)->assign(value);\n" + "}\n" + "inline void $classname$::set_$name$(int index, const char* value) {\n" + " $name$_.Mutable(index)->assign(value);\n" + "}\n" + "inline ::std::string* $classname$::add_$name$() {\n" + " return $name$_.Add();\n" + "}\n" + "inline void $classname$::add_$name$(const ::std::string& value) {\n" + " $name$_.Add()->assign(value);\n" + "}\n" + "inline void $classname$::add_$name$(const char* value) {\n" + " $name$_.Add()->assign(value);\n" + "}\n"); +} + +void RepeatedStringFieldGenerator:: +GenerateClearingCode(io::Printer* printer) const { + printer->Print(variables_, "$name$_.Clear();\n"); +} + +void RepeatedStringFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, "$name$_.MergeFrom(from.$name$_);\n"); +} + +void RepeatedStringFieldGenerator:: +GenerateInitializer(io::Printer* printer) const { + // Not needed for repeated fields. +} + +void RepeatedStringFieldGenerator:: +GenerateMergeFromCodedStream(io::Printer* printer) const { + printer->Print(variables_, + "DO_(::google::protobuf::internal::WireFormat::Read$declared_type$(\n" + " input, add_$name$()));\n"); +} + +void RepeatedStringFieldGenerator:: +GenerateSerializeWithCachedSizes(io::Printer* printer) const { + printer->Print(variables_, + "DO_(::google::protobuf::internal::WireFormat::Write$declared_type$(" + "$number$, this->$name$(i), output));\n"); +} + +void RepeatedStringFieldGenerator:: +GenerateByteSize(io::Printer* printer) const { + 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"); +} + +} // namespace cpp +} // namespace compiler +} // namespace protobuf +} // namespace google -- cgit v1.2.3