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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.
// Author: kenton@google.com (Kenton Varda)
// Based on original Protocol Buffers design by
// Sanjay Ghemawat, Jeff Dean, and others.
#include <google/protobuf/compiler/java/java_field.h>
#include <memory>
#include <google/protobuf/stubs/common.h>
#include <google/protobuf/compiler/java/java_context.h>
#include <google/protobuf/compiler/java/java_enum_field.h>
#include <google/protobuf/compiler/java/java_helpers.h>
#include <google/protobuf/compiler/java/java_lazy_message_field.h>
#include <google/protobuf/compiler/java/java_message_field.h>
#include <google/protobuf/compiler/java/java_primitive_field.h>
#include <google/protobuf/compiler/java/java_string_field.h>
#include <google/protobuf/io/printer.h>
#include <google/protobuf/stubs/strutil.h>
#include <google/protobuf/stubs/substitute.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace java {
namespace {
ImmutableFieldGenerator* MakeImmutableGenerator(
const FieldDescriptor* field, int messageBitIndex, int builderBitIndex,
Context* context) {
if (field->is_repeated()) {
switch (GetJavaType(field)) {
case JAVATYPE_MESSAGE:
if (IsLazy(field)) {
return new RepeatedImmutableLazyMessageFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
} else {
return new RepeatedImmutableMessageFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
}
case JAVATYPE_ENUM:
return new RepeatedImmutableEnumFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
case JAVATYPE_STRING:
return new RepeatedImmutableStringFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
default:
return new RepeatedImmutablePrimitiveFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
}
} else {
if (field->containing_oneof()) {
switch (GetJavaType(field)) {
case JAVATYPE_MESSAGE:
if (IsLazy(field)) {
return new ImmutableLazyMessageOneofFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
} else {
return new ImmutableMessageOneofFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
}
case JAVATYPE_ENUM:
return new ImmutableEnumOneofFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
case JAVATYPE_STRING:
return new ImmutableStringOneofFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
default:
return new ImmutablePrimitiveOneofFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
}
} else {
switch (GetJavaType(field)) {
case JAVATYPE_MESSAGE:
if (IsLazy(field)) {
return new ImmutableLazyMessageFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
} else {
return new ImmutableMessageFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
}
case JAVATYPE_ENUM:
return new ImmutableEnumFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
case JAVATYPE_STRING:
return new ImmutableStringFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
default:
return new ImmutablePrimitiveFieldGenerator(
field, messageBitIndex, builderBitIndex, context);
}
}
}
}
static inline void ReportUnexpectedPackedFieldsCall(io::Printer* printer) {
// Reaching here indicates a bug. Cases are:
// - This FieldGenerator should support packing,
// but this method should be overridden.
// - This FieldGenerator doesn't support packing, and this method
// should never have been called.
GOOGLE_LOG(FATAL) << "GenerateParsingCodeFromPacked() "
<< "called on field generator that does not support packing.";
}
} // namespace
ImmutableFieldGenerator::~ImmutableFieldGenerator() {}
void ImmutableFieldGenerator::
GenerateParsingCodeFromPacked(io::Printer* printer) const {
ReportUnexpectedPackedFieldsCall(printer);
}
// ===================================================================
template <>
FieldGeneratorMap<ImmutableFieldGenerator>::FieldGeneratorMap(
const Descriptor* descriptor, Context* context)
: descriptor_(descriptor),
field_generators_(new scoped_ptr<
ImmutableFieldGenerator>[descriptor->field_count()]) {
// Construct all the FieldGenerators and assign them bit indices for their
// bit fields.
int messageBitIndex = 0;
int builderBitIndex = 0;
for (int i = 0; i < descriptor->field_count(); i++) {
ImmutableFieldGenerator* generator = MakeImmutableGenerator(
descriptor->field(i), messageBitIndex, builderBitIndex, context);
field_generators_[i].reset(generator);
messageBitIndex += generator->GetNumBitsForMessage();
builderBitIndex += generator->GetNumBitsForBuilder();
}
}
template<>
FieldGeneratorMap<ImmutableFieldGenerator>::~FieldGeneratorMap() {}
void SetCommonFieldVariables(const FieldDescriptor* descriptor,
const FieldGeneratorInfo* info,
map<string, string>* variables) {
(*variables)["field_name"] = descriptor->name();
(*variables)["name"] = info->name;
(*variables)["capitalized_name"] = info->capitalized_name;
(*variables)["disambiguated_reason"] = info->disambiguated_reason;
(*variables)["constant_name"] = FieldConstantName(descriptor);
(*variables)["number"] = SimpleItoa(descriptor->number());
}
void SetCommonOneofVariables(const FieldDescriptor* descriptor,
const OneofGeneratorInfo* info,
map<string, string>* variables) {
(*variables)["oneof_name"] = info->name;
(*variables)["oneof_capitalized_name"] = info->capitalized_name;
(*variables)["oneof_index"] =
SimpleItoa(descriptor->containing_oneof()->index());
(*variables)["set_oneof_case_message"] = info->name +
"Case_ = " + SimpleItoa(descriptor->number());
(*variables)["clear_oneof_case_message"] = info->name +
"Case_ = 0";
(*variables)["has_oneof_case_message"] = info->name +
"Case_ == " + SimpleItoa(descriptor->number());
}
void PrintExtraFieldInfo(const map<string, string>& variables,
io::Printer* printer) {
const map<string, string>::const_iterator it =
variables.find("disambiguated_reason");
if (it != variables.end() && !it->second.empty()) {
printer->Print(
variables,
"// An alternative name is used for field \"$field_name$\" because:\n"
"// $disambiguated_reason$\n");
}
}
} // namespace java
} // namespace compiler
} // namespace protobuf
} // namespace google
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