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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
//
// 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/unknown_field_set.h>
#include <google/protobuf/stubs/logging.h>
#include <google/protobuf/stubs/common.h>
#include <google/protobuf/io/coded_stream.h>
#include <google/protobuf/io/zero_copy_stream.h>
#include <google/protobuf/io/zero_copy_stream_impl.h>
#include <google/protobuf/io/zero_copy_stream_impl_lite.h>
#include <google/protobuf/extension_set.h>
#include <google/protobuf/generated_message_tctable_decl.h>
#include <google/protobuf/generated_message_tctable_impl.h>
#include <google/protobuf/parse_context.h>
#include <google/protobuf/wire_format.h>
#include <google/protobuf/wire_format_lite.h>
#include <google/protobuf/stubs/stl_util.h>
// Must be included last.
#include <google/protobuf/port_def.inc>
namespace google {
namespace protobuf {
const UnknownFieldSet& UnknownFieldSet::default_instance() {
static auto instance = internal::OnShutdownDelete(new UnknownFieldSet());
return *instance;
}
void UnknownFieldSet::ClearFallback() {
GOOGLE_DCHECK(!fields_.empty());
int n = fields_.size();
do {
(fields_)[--n].Delete();
} while (n > 0);
fields_.clear();
}
void UnknownFieldSet::InternalMergeFrom(const UnknownFieldSet& other) {
int other_field_count = other.field_count();
if (other_field_count > 0) {
fields_.reserve(fields_.size() + other_field_count);
for (int i = 0; i < other_field_count; i++) {
fields_.push_back((other.fields_)[i]);
fields_.back().DeepCopy((other.fields_)[i]);
}
}
}
void UnknownFieldSet::MergeFrom(const UnknownFieldSet& other) {
int other_field_count = other.field_count();
if (other_field_count > 0) {
fields_.reserve(fields_.size() + other_field_count);
for (int i = 0; i < other_field_count; i++) {
fields_.push_back((other.fields_)[i]);
fields_.back().DeepCopy((other.fields_)[i]);
}
}
}
// A specialized MergeFrom for performance when we are merging from an UFS that
// is temporary and can be destroyed in the process.
void UnknownFieldSet::MergeFromAndDestroy(UnknownFieldSet* other) {
if (fields_.empty()) {
fields_ = std::move(other->fields_);
} else {
fields_.insert(fields_.end(),
std::make_move_iterator(other->fields_.begin()),
std::make_move_iterator(other->fields_.end()));
}
other->fields_.clear();
}
void UnknownFieldSet::MergeToInternalMetadata(
const UnknownFieldSet& other, internal::InternalMetadata* metadata) {
metadata->mutable_unknown_fields<UnknownFieldSet>()->MergeFrom(other);
}
size_t UnknownFieldSet::SpaceUsedExcludingSelfLong() const {
if (fields_.empty()) return 0;
size_t total_size = sizeof(UnknownField) * fields_.capacity();
for (const UnknownField& field : fields_) {
switch (field.type()) {
case UnknownField::TYPE_LENGTH_DELIMITED:
total_size += sizeof(*field.data_.length_delimited_.string_value) +
internal::StringSpaceUsedExcludingSelfLong(
*field.data_.length_delimited_.string_value);
break;
case UnknownField::TYPE_GROUP:
total_size += field.data_.group_->SpaceUsedLong();
break;
default:
break;
}
}
return total_size;
}
size_t UnknownFieldSet::SpaceUsedLong() const {
return sizeof(*this) + SpaceUsedExcludingSelf();
}
void UnknownFieldSet::AddVarint(int number, uint64_t value) {
UnknownField field;
field.number_ = number;
field.SetType(UnknownField::TYPE_VARINT);
field.data_.varint_ = value;
fields_.push_back(field);
}
void UnknownFieldSet::AddFixed32(int number, uint32_t value) {
UnknownField field;
field.number_ = number;
field.SetType(UnknownField::TYPE_FIXED32);
field.data_.fixed32_ = value;
fields_.push_back(field);
}
void UnknownFieldSet::AddFixed64(int number, uint64_t value) {
UnknownField field;
field.number_ = number;
field.SetType(UnknownField::TYPE_FIXED64);
field.data_.fixed64_ = value;
fields_.push_back(field);
}
std::string* UnknownFieldSet::AddLengthDelimited(int number) {
UnknownField field;
field.number_ = number;
field.SetType(UnknownField::TYPE_LENGTH_DELIMITED);
field.data_.length_delimited_.string_value = new std::string;
fields_.push_back(field);
return field.data_.length_delimited_.string_value;
}
UnknownFieldSet* UnknownFieldSet::AddGroup(int number) {
UnknownField field;
field.number_ = number;
field.SetType(UnknownField::TYPE_GROUP);
field.data_.group_ = new UnknownFieldSet;
fields_.push_back(field);
return field.data_.group_;
}
void UnknownFieldSet::AddField(const UnknownField& field) {
fields_.push_back(field);
fields_.back().DeepCopy(field);
}
void UnknownFieldSet::DeleteSubrange(int start, int num) {
// Delete the specified fields.
for (int i = 0; i < num; ++i) {
(fields_)[i + start].Delete();
}
// Slide down the remaining fields.
for (size_t i = start + num; i < fields_.size(); ++i) {
(fields_)[i - num] = (fields_)[i];
}
// Pop off the # of deleted fields.
for (int i = 0; i < num; ++i) {
fields_.pop_back();
}
}
void UnknownFieldSet::DeleteByNumber(int number) {
size_t left = 0; // The number of fields left after deletion.
for (size_t i = 0; i < fields_.size(); ++i) {
UnknownField* field = &(fields_)[i];
if (field->number() == number) {
field->Delete();
} else {
if (i != left) {
(fields_)[left] = (fields_)[i];
}
++left;
}
}
fields_.resize(left);
}
bool UnknownFieldSet::MergeFromCodedStream(io::CodedInputStream* input) {
UnknownFieldSet other;
if (internal::WireFormat::SkipMessage(input, &other) &&
input->ConsumedEntireMessage()) {
MergeFromAndDestroy(&other);
return true;
} else {
return false;
}
}
bool UnknownFieldSet::ParseFromCodedStream(io::CodedInputStream* input) {
Clear();
return MergeFromCodedStream(input);
}
bool UnknownFieldSet::ParseFromZeroCopyStream(io::ZeroCopyInputStream* input) {
io::CodedInputStream coded_input(input);
return (ParseFromCodedStream(&coded_input) &&
coded_input.ConsumedEntireMessage());
}
bool UnknownFieldSet::ParseFromArray(const void* data, int size) {
io::ArrayInputStream input(data, size);
return ParseFromZeroCopyStream(&input);
}
bool UnknownFieldSet::SerializeToString(std::string* output) const {
const size_t size =
google::protobuf::internal::WireFormat::ComputeUnknownFieldsSize(*this);
STLStringResizeUninitializedAmortized(output, size);
google::protobuf::internal::WireFormat::SerializeUnknownFieldsToArray(
*this, reinterpret_cast<uint8_t*>(const_cast<char*>(output->data())));
return true;
}
bool UnknownFieldSet::SerializeToCodedStream(
io::CodedOutputStream* output) const {
google::protobuf::internal::WireFormat::SerializeUnknownFields(*this, output);
return !output->HadError();
}
void UnknownField::Delete() {
switch (type()) {
case UnknownField::TYPE_LENGTH_DELIMITED:
delete data_.length_delimited_.string_value;
break;
case UnknownField::TYPE_GROUP:
delete data_.group_;
break;
default:
break;
}
}
void UnknownField::DeepCopy(const UnknownField& other) {
(void)other; // Parameter is used by Google-internal code.
switch (type()) {
case UnknownField::TYPE_LENGTH_DELIMITED:
data_.length_delimited_.string_value =
new std::string(*data_.length_delimited_.string_value);
break;
case UnknownField::TYPE_GROUP: {
UnknownFieldSet* group = new UnknownFieldSet();
group->InternalMergeFrom(*data_.group_);
data_.group_ = group;
break;
}
default:
break;
}
}
uint8_t* UnknownField::InternalSerializeLengthDelimitedNoTag(
uint8_t* target, io::EpsCopyOutputStream* stream) const {
GOOGLE_DCHECK_EQ(TYPE_LENGTH_DELIMITED, type());
const std::string& data = *data_.length_delimited_.string_value;
target = io::CodedOutputStream::WriteVarint32ToArray(data.size(), target);
target = stream->WriteRaw(data.data(), data.size(), target);
return target;
}
namespace internal {
class UnknownFieldParserHelper {
public:
explicit UnknownFieldParserHelper(UnknownFieldSet* unknown)
: unknown_(unknown) {}
void AddVarint(uint32_t num, uint64_t value) {
unknown_->AddVarint(num, value);
}
void AddFixed64(uint32_t num, uint64_t value) {
unknown_->AddFixed64(num, value);
}
const char* ParseLengthDelimited(uint32_t num, const char* ptr,
ParseContext* ctx) {
std::string* s = unknown_->AddLengthDelimited(num);
int size = ReadSize(&ptr);
GOOGLE_PROTOBUF_PARSER_ASSERT(ptr);
return ctx->ReadString(ptr, size, s);
}
const char* ParseGroup(uint32_t num, const char* ptr, ParseContext* ctx) {
UnknownFieldParserHelper child(unknown_->AddGroup(num));
return ctx->ParseGroup(&child, ptr, num * 8 + 3);
}
void AddFixed32(uint32_t num, uint32_t value) {
unknown_->AddFixed32(num, value);
}
const char* _InternalParse(const char* ptr, ParseContext* ctx) {
return WireFormatParser(*this, ptr, ctx);
}
private:
UnknownFieldSet* unknown_;
};
const char* UnknownGroupParse(UnknownFieldSet* unknown, const char* ptr,
ParseContext* ctx) {
UnknownFieldParserHelper field_parser(unknown);
return WireFormatParser(field_parser, ptr, ctx);
}
const char* UnknownFieldParse(uint64_t tag, UnknownFieldSet* unknown,
const char* ptr, ParseContext* ctx) {
UnknownFieldParserHelper field_parser(unknown);
return FieldParser(tag, field_parser, ptr, ctx);
}
} // namespace internal
} // namespace protobuf
} // namespace google
#include <google/protobuf/port_undef.inc>