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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// 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.
#include <map>
#include <string>
#include <google/protobuf/compiler/objectivec/objectivec_oneof.h>
#include <google/protobuf/compiler/objectivec/objectivec_helpers.h>
#include <google/protobuf/io/printer.h>
#include <google/protobuf/stubs/strutil.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace objectivec {
OneofGenerator::OneofGenerator(const OneofDescriptor* descriptor)
: descriptor_(descriptor) {
variables_["enum_name"] = OneofEnumName(descriptor_);
variables_["name"] = OneofName(descriptor_);
variables_["capitalized_name"] = OneofNameCapitalized(descriptor_);
variables_["raw_index"] = StrCat(descriptor_->index());
const Descriptor* msg_descriptor = descriptor_->containing_type();
variables_["owning_message_class"] = ClassName(msg_descriptor);
TProtoStringType comments;
SourceLocation location;
if (descriptor_->GetSourceLocation(&location)) {
comments = BuildCommentsString(location, true);
} else {
comments = "";
}
variables_["comments"] = comments;
}
OneofGenerator::~OneofGenerator() {}
void OneofGenerator::SetOneofIndexBase(int index_base) {
int index = descriptor_->index() + index_base;
// Flip the sign to mark it as a oneof.
variables_["index"] = StrCat(-index);
}
void OneofGenerator::GenerateCaseEnum(io::Printer* printer) {
printer->Print(
variables_,
"typedef GPB_ENUM($enum_name$) {\n");
printer->Indent();
printer->Print(
variables_,
"$enum_name$_GPBUnsetOneOfCase = 0,\n");
TProtoStringType enum_name = variables_["enum_name"];
for (int j = 0; j < descriptor_->field_count(); j++) {
const FieldDescriptor* field = descriptor_->field(j);
TProtoStringType field_name = FieldNameCapitalized(field);
printer->Print(
"$enum_name$_$field_name$ = $field_number$,\n",
"enum_name", enum_name,
"field_name", field_name,
"field_number", StrCat(field->number()));
}
printer->Outdent();
printer->Print(
"};\n"
"\n");
}
void OneofGenerator::GeneratePublicCasePropertyDeclaration(
io::Printer* printer) {
printer->Print(
variables_,
"$comments$"
"@property(nonatomic, readonly) $enum_name$ $name$OneOfCase;\n"
"\n");
}
void OneofGenerator::GenerateClearFunctionDeclaration(io::Printer* printer) {
printer->Print(
variables_,
"/**\n"
" * Clears whatever value was set for the oneof '$name$'.\n"
" **/\n"
"void $owning_message_class$_Clear$capitalized_name$OneOfCase($owning_message_class$ *message);\n");
}
void OneofGenerator::GeneratePropertyImplementation(io::Printer* printer) {
printer->Print(
variables_,
"@dynamic $name$OneOfCase;\n");
}
void OneofGenerator::GenerateClearFunctionImplementation(io::Printer* printer) {
printer->Print(
variables_,
"void $owning_message_class$_Clear$capitalized_name$OneOfCase($owning_message_class$ *message) {\n"
" GPBDescriptor *descriptor = [$owning_message_class$ descriptor];\n"
" GPBOneofDescriptor *oneof = [descriptor.oneofs objectAtIndex:$raw_index$];\n"
" GPBClearOneof(message, oneof);\n"
"}\n");
}
TProtoStringType OneofGenerator::DescriptorName(void) const {
return variables_.find("name")->second;
}
TProtoStringType OneofGenerator::HasIndexAsString(void) const {
return variables_.find("index")->second;
}
} // namespace objectivec
} // namespace compiler
} // namespace protobuf
} // namespace google
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