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lua_message_field.cpp
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325 lines (280 loc) · 10.5 KB
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#include "lua_message_field.h"
#include "lua_helpers.h"
#include <google/protobuf/io/printer.h>
#include <google/protobuf/stubs/strutil.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace mwpb_lua {
namespace {
void SetMessageVariables(const FieldDescriptor* descriptor,
map<string, string>* variables,
const Options& options) {
SetCommonFieldVariables(descriptor, variables, options);
(*variables)["type"] = FieldMessageTypeName(descriptor);
(*variables)["stream_writer"] = (*variables)["declared_type"] +
(HasFastArraySerialization(descriptor->message_type()->file()) ?
"MaybeToArray" :
"");
}
} // namespace
// ===================================================================
MessageFieldGenerator::
MessageFieldGenerator(const FieldDescriptor* descriptor,
const Options& options)
: descriptor_(descriptor) {
SetMessageVariables(descriptor, &variables_, options);
}
MessageFieldGenerator::~MessageFieldGenerator() {}
void MessageFieldGenerator::
GeneratePrivateMembers(io::Printer* printer) const {
//printer->Print(variables_, "$type$* $name$_;\n");
printer->Print(variables_, "$name$_ = $type$,\n");
}
void MessageFieldGenerator::
GenerateAccessorDeclarations(io::Printer* printer) const {
// printer->Print(variables_,
// "inline const $type$& $name$() const$deprecation$;\n"
// "inline $type$* mutable_$name$()$deprecation$;\n"
// "inline $type$* release_$name$()$deprecation$;\n"
// "inline void set_allocated_$name$($type$* $name$)$deprecation$;\n");
printer->Print(variables_, "$classname$.get_$name$ = function()\n");
printer->Indent();
printer->Print(variables_, "return $classname$_Member.$name$_\n");
printer->Outdent();
printer->Print("end\n\n");
printer->Print(variables_, "$classname$.set_$name$ = function(var)\n");
printer->Indent();
printer->Print(variables_, "$classname$_Member.$name$_ = var\n");
printer->Print(variables_, "$classname$_Temp.$name$_ = true\n");
printer->Outdent();
printer->Print("end\n\n");
}
void MessageFieldGenerator::
GenerateInlineAccessorDefinitions(io::Printer* printer) const {
printer->Print(variables_,
"inline const $type$& $classname$::$name$() const {\n");
PrintHandlingOptionalStaticInitializers(
variables_, descriptor_->file(), printer,
// With static initializers.
" return $name$_ != NULL ? *$name$_ : *default_instance_->$name$_;\n",
// Without.
" return $name$_ != NULL ? *$name$_ : *default_instance().$name$_;\n");
printer->Print(variables_,
"}\n"
"inline $type$* $classname$::mutable_$name$() {\n"
" set_has_$name$();\n"
" if ($name$_ == NULL) $name$_ = new $type$;\n"
" return $name$_;\n"
"}\n"
"inline $type$* $classname$::release_$name$() {\n"
" clear_has_$name$();\n"
" $type$* temp = $name$_;\n"
" $name$_ = NULL;\n"
" return temp;\n"
"}\n"
"inline void $classname$::set_allocated_$name$($type$* $name$) {\n"
" delete $name$_;\n"
" $name$_ = $name$;\n"
" if ($name$) {\n"
" set_has_$name$();\n"
" } else {\n"
" clear_has_$name$();\n"
" }\n"
"}\n");
}
void MessageFieldGenerator::
GenerateClearingCode(io::Printer* printer) const {
printer->Print(variables_,
"if ($name$_ != NULL) $name$_->$type$::Clear();\n");
}
void MessageFieldGenerator::
GenerateMergingCode(io::Printer* printer) const {
printer->Print(variables_,
"mutable_$name$()->$type$::MergeFrom(from.$name$());\n");
}
void MessageFieldGenerator::
GenerateSwappingCode(io::Printer* printer) const {
printer->Print(variables_, "std::swap($name$_, other->$name$_);\n");
}
void MessageFieldGenerator::
GenerateConstructorCode(io::Printer* printer) const {
printer->Print(variables_, "$name$_ = NULL;\n");
}
void MessageFieldGenerator::
GenerateMergeFromCodedStream(io::Printer* printer) const {
if (descriptor_->type() == FieldDescriptor::TYPE_MESSAGE) {
// printer->Print(variables_,
// "DO_(::google::protobuf::internal::WireFormatLite::ReadMessageNoVirtual(\n"
// " input, mutable_$name$()));\n");
printer->Print(variables_,
"$classname$_Member.$name$_.MergePartialFromCodedStream();\n");
} else {
// printer->Print(variables_,
// "DO_(::google::protobuf::internal::WireFormatLite::ReadGroupNoVirtual(\n"
// " $number$, input, mutable_$name$()));\n");
assert(0);
}
}
void MessageFieldGenerator::
GenerateSerializeWithCachedSizes(io::Printer* printer) const {
// printer->Print(variables_,
// "::google::protobuf::internal::WireFormatLite::Write$stream_writer$(\n"
// " $number$, this->$name$(), output);\n");
// printer->Print(variables_,
// "pb_Write_$stream_writer$($number$, $classname$.get_$name$());\n"
// );
printer->Print(variables_,
"$classname$_Member.$name$_.SerializeWithCachedSizes();\n");
}
void MessageFieldGenerator::
GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const {
printer->Print(variables_,
"target = ::google::protobuf::internal::WireFormatLite::\n"
" Write$declared_type$NoVirtualToArray(\n"
" $number$, this->$name$(), target);\n");
}
void MessageFieldGenerator::
GenerateByteSize(io::Printer* printer) const {
printer->Print(variables_,
"total_size += $tag_size$ +\n"
" ::google::protobuf::internal::WireFormatLite::$declared_type$SizeNoVirtual(\n"
" this->$name$());\n");
}
// ===================================================================
RepeatedMessageFieldGenerator::
RepeatedMessageFieldGenerator(const FieldDescriptor* descriptor,
const Options& options)
: descriptor_(descriptor) {
SetMessageVariables(descriptor, &variables_, options);
}
RepeatedMessageFieldGenerator::~RepeatedMessageFieldGenerator() {}
void RepeatedMessageFieldGenerator::
GeneratePrivateMembers(io::Printer* printer) const {
// printer->Print(variables_,
// "::google::protobuf::RepeatedPtrField< $type$ > $name$_;\n");
printer->Print(variables_, "$name$_={},\n");
}
void RepeatedMessageFieldGenerator::
GenerateAccessorDeclarations(io::Printer* printer) const {
// printer->Print(variables_,
// "inline const $type$& $name$(int index) const$deprecation$;\n"
// "inline $type$* mutable_$name$(int index)$deprecation$;\n"
// "inline $type$* add_$name$()$deprecation$;\n");
// printer->Print(variables_,
// "inline const ::google::protobuf::RepeatedPtrField< $type$ >&\n"
// " $name$() const$deprecation$;\n"
// "inline ::google::protobuf::RepeatedPtrField< $type$ >*\n"
// " mutable_$name$()$deprecation$;\n");
printer->Print(variables_, "$classname$.add_$name$ = function(var)\n");
printer->Indent();
printer->Print(variables_, "table.insert($classname$_Member.$name$_, var)\n");
printer->Print(variables_, "$classname$_Temp.$name$_ = true\n");
printer->Outdent();
printer->Print("end\n\n");
printer->Print(variables_, "$classname$.get_$name$ = function(index)\n");
printer->Indent();
printer->Print(variables_, "return $classname$_Member.$name$_[index]\n");
printer->Outdent();
printer->Print("end\n\n");
}
void RepeatedMessageFieldGenerator::
GenerateInlineAccessorDefinitions(io::Printer* printer) const {
printer->Print(variables_,
"inline const $type$& $classname$::$name$(int index) const {\n"
" return $name$_.$cppget$(index);\n"
"}\n"
"inline $type$* $classname$::mutable_$name$(int index) {\n"
" return $name$_.Mutable(index);\n"
"}\n"
"inline $type$* $classname$::add_$name$() {\n"
" return $name$_.Add();\n"
"}\n");
printer->Print(variables_,
"inline const ::google::protobuf::RepeatedPtrField< $type$ >&\n"
"$classname$::$name$() const {\n"
" return $name$_;\n"
"}\n"
"inline ::google::protobuf::RepeatedPtrField< $type$ >*\n"
"$classname$::mutable_$name$() {\n"
" return &$name$_;\n"
"}\n");
}
void RepeatedMessageFieldGenerator::
GenerateClearingCode(io::Printer* printer) const {
printer->Print(variables_, "$name$_.Clear();\n");
}
void RepeatedMessageFieldGenerator::
GenerateMergingCode(io::Printer* printer) const {
printer->Print(variables_, "$name$_.MergeFrom(from.$name$_);\n");
}
void RepeatedMessageFieldGenerator::
GenerateSwappingCode(io::Printer* printer) const {
printer->Print(variables_, "$name$_.Swap(&other->$name$_);\n");
}
void RepeatedMessageFieldGenerator::
GenerateConstructorCode(io::Printer* printer) const {
// Not needed for repeated fields.
}
void RepeatedMessageFieldGenerator::
GenerateMergeFromCodedStream(io::Printer* printer) const {
if (descriptor_->type() == FieldDescriptor::TYPE_MESSAGE) {
// printer->Print(variables_,
// "DO_(::google::protobuf::internal::WireFormatLite::ReadMessageNoVirtual(\n"
// " input, add_$name$()));\n");
printer->Print(variables_,
"local msgtb = $type$;\n"
"msgtb.MergePartialFromCodedStream();\n"
"add_$name$(msgtb);\n"
"");
} else {
// printer->Print(variables_,
// "DO_(::google::protobuf::internal::WireFormatLite::ReadGroupNoVirtual(\n"
// " $number$, input, add_$name$()));\n");
assert(0);
}
}
void RepeatedMessageFieldGenerator::
GenerateSerializeWithCachedSizes(io::Printer* printer) const {
// printer->Print(variables_,
// "for (int i = 0; i < this->$name$_size(); i++) {\n"
// " ::google::protobuf::internal::WireFormatLite::Write$stream_writer$(\n"
// " $number$, this->$name$(i), output);\n"
// "}\n");
//printer->Print(variables_,
// "for i=1, $classname$.$name$_size() do\n"
// " pb_Write_$stream_writer$($number$, $classname$.get_$name$());\n"
// "end\n"
// );
// printer->Print(variables_,
// "$classname$_Member.$name$_.SerializeWithCachedSizes();\n");
printer->Print(variables_,
"for i=1, $classname$.$name$_size() do\n"
" $classname$.get_$name$(i).SerializeWithCachedSizes();\n"
// " pb_Write_$stream_writer$($number$, $classname$.get_$name$());\n"
"end\n"
);
}
void RepeatedMessageFieldGenerator::
GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const {
printer->Print(variables_,
"for (int i = 0; i < this->$name$_size(); i++) {\n"
" target = ::google::protobuf::internal::WireFormatLite::\n"
" Write$declared_type$NoVirtualToArray(\n"
" $number$, this->$name$(i), target);\n"
"}\n");
}
void RepeatedMessageFieldGenerator::
GenerateByteSize(io::Printer* printer) const {
printer->Print(variables_,
"total_size += $tag_size$ * this->$name$_size();\n"
"for (int i = 0; i < this->$name$_size(); i++) {\n"
" total_size +=\n"
" ::google::protobuf::internal::WireFormatLite::$declared_type$SizeNoVirtual(\n"
" this->$name$(i));\n"
"}\n");
}
} // namespace
} // namespace compiler
} // namespace protobuf
} // namespace google
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