/thirdparty/breakpad/third_party/protobuf/protobuf/src/google/protobuf/generated_message_reflection.cc
http://github.com/tomahawk-player/tomahawk · C++ · 1228 lines · 1001 code · 150 blank · 77 comment · 160 complexity · d0ddf6e221c7b4f0ed97a726f08ad4e9 MD5 · raw file
- // Protocol Buffers - Google's data interchange format
- // Copyright 2008 Google Inc. All rights reserved.
- // http://code.google.com/p/protobuf/
- //
- // 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 <algorithm>
- #include <google/protobuf/generated_message_reflection.h>
- #include <google/protobuf/descriptor.h>
- #include <google/protobuf/descriptor.pb.h>
- #include <google/protobuf/repeated_field.h>
- #include <google/protobuf/extension_set.h>
- #include <google/protobuf/generated_message_util.h>
- #include <google/protobuf/stubs/common.h>
- namespace google {
- namespace protobuf {
- namespace internal {
- int StringSpaceUsedExcludingSelf(const string& str) {
- const void* start = &str;
- const void* end = &str + 1;
- if (start <= str.data() && str.data() <= end) {
- // The string's data is stored inside the string object itself.
- return 0;
- } else {
- return str.capacity();
- }
- }
- bool ParseNamedEnum(const EnumDescriptor* descriptor,
- const string& name,
- int* value) {
- const EnumValueDescriptor* d = descriptor->FindValueByName(name);
- if (d == NULL) return false;
- *value = d->number();
- return true;
- }
- const string& NameOfEnum(const EnumDescriptor* descriptor, int value) {
- const EnumValueDescriptor* d = descriptor->FindValueByNumber(value);
- return (d == NULL ? kEmptyString : d->name());
- }
- // ===================================================================
- // Helpers for reporting usage errors (e.g. trying to use GetInt32() on
- // a string field).
- namespace {
- void ReportReflectionUsageError(
- const Descriptor* descriptor, const FieldDescriptor* field,
- const char* method, const char* description) {
- GOOGLE_LOG(FATAL)
- << "Protocol Buffer reflection usage error:\n"
- " Method : google::protobuf::Reflection::" << method << "\n"
- " Message type: " << descriptor->full_name() << "\n"
- " Field : " << field->full_name() << "\n"
- " Problem : " << description;
- }
- const char* cpptype_names_[FieldDescriptor::MAX_CPPTYPE + 1] = {
- "INVALID_CPPTYPE",
- "CPPTYPE_INT32",
- "CPPTYPE_INT64",
- "CPPTYPE_UINT32",
- "CPPTYPE_UINT64",
- "CPPTYPE_DOUBLE",
- "CPPTYPE_FLOAT",
- "CPPTYPE_BOOL",
- "CPPTYPE_ENUM",
- "CPPTYPE_STRING",
- "CPPTYPE_MESSAGE"
- };
- static void ReportReflectionUsageTypeError(
- const Descriptor* descriptor, const FieldDescriptor* field,
- const char* method,
- FieldDescriptor::CppType expected_type) {
- GOOGLE_LOG(FATAL)
- << "Protocol Buffer reflection usage error:\n"
- " Method : google::protobuf::Reflection::" << method << "\n"
- " Message type: " << descriptor->full_name() << "\n"
- " Field : " << field->full_name() << "\n"
- " Problem : Field is not the right type for this message:\n"
- " Expected : " << cpptype_names_[expected_type] << "\n"
- " Field type: " << cpptype_names_[field->cpp_type()];
- }
- static void ReportReflectionUsageEnumTypeError(
- const Descriptor* descriptor, const FieldDescriptor* field,
- const char* method, const EnumValueDescriptor* value) {
- GOOGLE_LOG(FATAL)
- << "Protocol Buffer reflection usage error:\n"
- " Method : google::protobuf::Reflection::" << method << "\n"
- " Message type: " << descriptor->full_name() << "\n"
- " Field : " << field->full_name() << "\n"
- " Problem : Enum value did not match field type:\n"
- " Expected : " << field->enum_type()->full_name() << "\n"
- " Actual : " << value->full_name();
- }
- #define USAGE_CHECK(CONDITION, METHOD, ERROR_DESCRIPTION) \
- if (!(CONDITION)) \
- ReportReflectionUsageError(descriptor_, field, #METHOD, ERROR_DESCRIPTION)
- #define USAGE_CHECK_EQ(A, B, METHOD, ERROR_DESCRIPTION) \
- USAGE_CHECK((A) == (B), METHOD, ERROR_DESCRIPTION)
- #define USAGE_CHECK_NE(A, B, METHOD, ERROR_DESCRIPTION) \
- USAGE_CHECK((A) != (B), METHOD, ERROR_DESCRIPTION)
- #define USAGE_CHECK_TYPE(METHOD, CPPTYPE) \
- if (field->cpp_type() != FieldDescriptor::CPPTYPE_##CPPTYPE) \
- ReportReflectionUsageTypeError(descriptor_, field, #METHOD, \
- FieldDescriptor::CPPTYPE_##CPPTYPE)
- #define USAGE_CHECK_ENUM_VALUE(METHOD) \
- if (value->type() != field->enum_type()) \
- ReportReflectionUsageEnumTypeError(descriptor_, field, #METHOD, value)
- #define USAGE_CHECK_MESSAGE_TYPE(METHOD) \
- USAGE_CHECK_EQ(field->containing_type(), descriptor_, \
- METHOD, "Field does not match message type.");
- #define USAGE_CHECK_SINGULAR(METHOD) \
- USAGE_CHECK_NE(field->label(), FieldDescriptor::LABEL_REPEATED, METHOD, \
- "Field is repeated; the method requires a singular field.")
- #define USAGE_CHECK_REPEATED(METHOD) \
- USAGE_CHECK_EQ(field->label(), FieldDescriptor::LABEL_REPEATED, METHOD, \
- "Field is singular; the method requires a repeated field.")
- #define USAGE_CHECK_ALL(METHOD, LABEL, CPPTYPE) \
- USAGE_CHECK_MESSAGE_TYPE(METHOD); \
- USAGE_CHECK_##LABEL(METHOD); \
- USAGE_CHECK_TYPE(METHOD, CPPTYPE)
- } // namespace
- // ===================================================================
- GeneratedMessageReflection::GeneratedMessageReflection(
- const Descriptor* descriptor,
- const Message* default_instance,
- const int offsets[],
- int has_bits_offset,
- int unknown_fields_offset,
- int extensions_offset,
- const DescriptorPool* descriptor_pool,
- MessageFactory* factory,
- int object_size)
- : descriptor_ (descriptor),
- default_instance_ (default_instance),
- offsets_ (offsets),
- has_bits_offset_ (has_bits_offset),
- unknown_fields_offset_(unknown_fields_offset),
- extensions_offset_(extensions_offset),
- object_size_ (object_size),
- descriptor_pool_ ((descriptor_pool == NULL) ?
- DescriptorPool::generated_pool() :
- descriptor_pool),
- message_factory_ (factory) {
- }
- GeneratedMessageReflection::~GeneratedMessageReflection() {}
- const UnknownFieldSet& GeneratedMessageReflection::GetUnknownFields(
- const Message& message) const {
- const void* ptr = reinterpret_cast<const uint8*>(&message) +
- unknown_fields_offset_;
- return *reinterpret_cast<const UnknownFieldSet*>(ptr);
- }
- UnknownFieldSet* GeneratedMessageReflection::MutableUnknownFields(
- Message* message) const {
- void* ptr = reinterpret_cast<uint8*>(message) + unknown_fields_offset_;
- return reinterpret_cast<UnknownFieldSet*>(ptr);
- }
- int GeneratedMessageReflection::SpaceUsed(const Message& message) const {
- // object_size_ already includes the in-memory representation of each field
- // in the message, so we only need to account for additional memory used by
- // the fields.
- int total_size = object_size_;
- total_size += GetUnknownFields(message).SpaceUsedExcludingSelf();
- if (extensions_offset_ != -1) {
- total_size += GetExtensionSet(message).SpaceUsedExcludingSelf();
- }
- for (int i = 0; i < descriptor_->field_count(); i++) {
- const FieldDescriptor* field = descriptor_->field(i);
- if (field->is_repeated()) {
- switch (field->cpp_type()) {
- #define HANDLE_TYPE(UPPERCASE, LOWERCASE) \
- case FieldDescriptor::CPPTYPE_##UPPERCASE : \
- total_size += GetRaw<RepeatedField<LOWERCASE> >(message, field) \
- .SpaceUsedExcludingSelf(); \
- break
- HANDLE_TYPE( INT32, int32);
- HANDLE_TYPE( INT64, int64);
- HANDLE_TYPE(UINT32, uint32);
- HANDLE_TYPE(UINT64, uint64);
- HANDLE_TYPE(DOUBLE, double);
- HANDLE_TYPE( FLOAT, float);
- HANDLE_TYPE( BOOL, bool);
- HANDLE_TYPE( ENUM, int);
- #undef HANDLE_TYPE
- case FieldDescriptor::CPPTYPE_STRING:
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- total_size += GetRaw<RepeatedPtrField<string> >(message, field)
- .SpaceUsedExcludingSelf();
- break;
- }
- break;
- case FieldDescriptor::CPPTYPE_MESSAGE:
- // We don't know which subclass of RepeatedPtrFieldBase the type is,
- // so we use RepeatedPtrFieldBase directly.
- total_size +=
- GetRaw<RepeatedPtrFieldBase>(message, field)
- .SpaceUsedExcludingSelf<GenericTypeHandler<Message> >();
- break;
- }
- } else {
- switch (field->cpp_type()) {
- case FieldDescriptor::CPPTYPE_INT32 :
- case FieldDescriptor::CPPTYPE_INT64 :
- case FieldDescriptor::CPPTYPE_UINT32:
- case FieldDescriptor::CPPTYPE_UINT64:
- case FieldDescriptor::CPPTYPE_DOUBLE:
- case FieldDescriptor::CPPTYPE_FLOAT :
- case FieldDescriptor::CPPTYPE_BOOL :
- case FieldDescriptor::CPPTYPE_ENUM :
- // Field is inline, so we've already counted it.
- break;
- case FieldDescriptor::CPPTYPE_STRING: {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING: {
- const string* ptr = GetField<const string*>(message, field);
- // Initially, the string points to the default value stored in
- // the prototype. Only count the string if it has been changed
- // from the default value.
- const string* default_ptr = DefaultRaw<const string*>(field);
- if (ptr != default_ptr) {
- // string fields are represented by just a pointer, so also
- // include sizeof(string) as well.
- total_size += sizeof(*ptr) + StringSpaceUsedExcludingSelf(*ptr);
- }
- break;
- }
- }
- break;
- }
- case FieldDescriptor::CPPTYPE_MESSAGE:
- if (&message == default_instance_) {
- // For singular fields, the prototype just stores a pointer to the
- // external type's prototype, so there is no extra memory usage.
- } else {
- const Message* sub_message = GetRaw<const Message*>(message, field);
- if (sub_message != NULL) {
- total_size += sub_message->SpaceUsed();
- }
- }
- break;
- }
- }
- }
- return total_size;
- }
- void GeneratedMessageReflection::Swap(
- Message* message1,
- Message* message2) const {
- if (message1 == message2) return;
- // TODO(kenton): Other Reflection methods should probably check this too.
- GOOGLE_CHECK_EQ(message1->GetReflection(), this)
- << "First argument to Swap() (of type \""
- << message1->GetDescriptor()->full_name()
- << "\") is not compatible with this reflection object (which is for type \""
- << descriptor_->full_name()
- << "\"). Note that the exact same class is required; not just the same "
- "descriptor.";
- GOOGLE_CHECK_EQ(message2->GetReflection(), this)
- << "Second argument to Swap() (of type \""
- << message1->GetDescriptor()->full_name()
- << "\") is not compatible with this reflection object (which is for type \""
- << descriptor_->full_name()
- << "\"). Note that the exact same class is required; not just the same "
- "descriptor.";
- uint32* has_bits1 = MutableHasBits(message1);
- uint32* has_bits2 = MutableHasBits(message2);
- int has_bits_size = (descriptor_->field_count() + 31) / 32;
- for (int i = 0; i < has_bits_size; i++) {
- std::swap(has_bits1[i], has_bits2[i]);
- }
- for (int i = 0; i < descriptor_->field_count(); i++) {
- const FieldDescriptor* field = descriptor_->field(i);
- if (field->is_repeated()) {
- switch (field->cpp_type()) {
- #define SWAP_ARRAYS(CPPTYPE, TYPE) \
- case FieldDescriptor::CPPTYPE_##CPPTYPE: \
- MutableRaw<RepeatedField<TYPE> >(message1, field)->Swap( \
- MutableRaw<RepeatedField<TYPE> >(message2, field)); \
- break;
- SWAP_ARRAYS(INT32 , int32 );
- SWAP_ARRAYS(INT64 , int64 );
- SWAP_ARRAYS(UINT32, uint32);
- SWAP_ARRAYS(UINT64, uint64);
- SWAP_ARRAYS(FLOAT , float );
- SWAP_ARRAYS(DOUBLE, double);
- SWAP_ARRAYS(BOOL , bool );
- SWAP_ARRAYS(ENUM , int );
- #undef SWAP_ARRAYS
- case FieldDescriptor::CPPTYPE_STRING:
- case FieldDescriptor::CPPTYPE_MESSAGE:
- MutableRaw<RepeatedPtrFieldBase>(message1, field)->Swap(
- MutableRaw<RepeatedPtrFieldBase>(message2, field));
- break;
- default:
- GOOGLE_LOG(FATAL) << "Unimplemented type: " << field->cpp_type();
- }
- } else {
- switch (field->cpp_type()) {
- #define SWAP_VALUES(CPPTYPE, TYPE) \
- case FieldDescriptor::CPPTYPE_##CPPTYPE: \
- std::swap(*MutableRaw<TYPE>(message1, field), \
- *MutableRaw<TYPE>(message2, field)); \
- break;
- SWAP_VALUES(INT32 , int32 );
- SWAP_VALUES(INT64 , int64 );
- SWAP_VALUES(UINT32, uint32);
- SWAP_VALUES(UINT64, uint64);
- SWAP_VALUES(FLOAT , float );
- SWAP_VALUES(DOUBLE, double);
- SWAP_VALUES(BOOL , bool );
- SWAP_VALUES(ENUM , int );
- SWAP_VALUES(MESSAGE, Message*);
- #undef SWAP_VALUES
- case FieldDescriptor::CPPTYPE_STRING:
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- std::swap(*MutableRaw<string*>(message1, field),
- *MutableRaw<string*>(message2, field));
- break;
- }
- break;
- default:
- GOOGLE_LOG(FATAL) << "Unimplemented type: " << field->cpp_type();
- }
- }
- }
- if (extensions_offset_ != -1) {
- MutableExtensionSet(message1)->Swap(MutableExtensionSet(message2));
- }
- MutableUnknownFields(message1)->Swap(MutableUnknownFields(message2));
- }
- // -------------------------------------------------------------------
- bool GeneratedMessageReflection::HasField(const Message& message,
- const FieldDescriptor* field) const {
- USAGE_CHECK_MESSAGE_TYPE(HasField);
- USAGE_CHECK_SINGULAR(HasField);
- if (field->is_extension()) {
- return GetExtensionSet(message).Has(field->number());
- } else {
- return HasBit(message, field);
- }
- }
- int GeneratedMessageReflection::FieldSize(const Message& message,
- const FieldDescriptor* field) const {
- USAGE_CHECK_MESSAGE_TYPE(FieldSize);
- USAGE_CHECK_REPEATED(FieldSize);
- if (field->is_extension()) {
- return GetExtensionSet(message).ExtensionSize(field->number());
- } else {
- switch (field->cpp_type()) {
- #define HANDLE_TYPE(UPPERCASE, LOWERCASE) \
- case FieldDescriptor::CPPTYPE_##UPPERCASE : \
- return GetRaw<RepeatedField<LOWERCASE> >(message, field).size()
- HANDLE_TYPE( INT32, int32);
- HANDLE_TYPE( INT64, int64);
- HANDLE_TYPE(UINT32, uint32);
- HANDLE_TYPE(UINT64, uint64);
- HANDLE_TYPE(DOUBLE, double);
- HANDLE_TYPE( FLOAT, float);
- HANDLE_TYPE( BOOL, bool);
- HANDLE_TYPE( ENUM, int);
- #undef HANDLE_TYPE
- case FieldDescriptor::CPPTYPE_STRING:
- case FieldDescriptor::CPPTYPE_MESSAGE:
- return GetRaw<RepeatedPtrFieldBase>(message, field).size();
- }
- GOOGLE_LOG(FATAL) << "Can't get here.";
- return 0;
- }
- }
- void GeneratedMessageReflection::ClearField(
- Message* message, const FieldDescriptor* field) const {
- USAGE_CHECK_MESSAGE_TYPE(ClearField);
- if (field->is_extension()) {
- MutableExtensionSet(message)->ClearExtension(field->number());
- } else if (!field->is_repeated()) {
- if (HasBit(*message, field)) {
- ClearBit(message, field);
- // We need to set the field back to its default value.
- switch (field->cpp_type()) {
- #define CLEAR_TYPE(CPPTYPE, TYPE) \
- case FieldDescriptor::CPPTYPE_##CPPTYPE: \
- *MutableRaw<TYPE>(message, field) = \
- field->default_value_##TYPE(); \
- break;
- CLEAR_TYPE(INT32 , int32 );
- CLEAR_TYPE(INT64 , int64 );
- CLEAR_TYPE(UINT32, uint32);
- CLEAR_TYPE(UINT64, uint64);
- CLEAR_TYPE(FLOAT , float );
- CLEAR_TYPE(DOUBLE, double);
- CLEAR_TYPE(BOOL , bool );
- #undef CLEAR_TYPE
- case FieldDescriptor::CPPTYPE_ENUM:
- *MutableRaw<int>(message, field) =
- field->default_value_enum()->number();
- break;
- case FieldDescriptor::CPPTYPE_STRING: {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- const string* default_ptr = DefaultRaw<const string*>(field);
- string** value = MutableRaw<string*>(message, field);
- if (*value != default_ptr) {
- if (field->has_default_value()) {
- (*value)->assign(field->default_value_string());
- } else {
- (*value)->clear();
- }
- }
- break;
- }
- break;
- }
- case FieldDescriptor::CPPTYPE_MESSAGE:
- (*MutableRaw<Message*>(message, field))->Clear();
- break;
- }
- }
- } else {
- switch (field->cpp_type()) {
- #define HANDLE_TYPE(UPPERCASE, LOWERCASE) \
- case FieldDescriptor::CPPTYPE_##UPPERCASE : \
- MutableRaw<RepeatedField<LOWERCASE> >(message, field)->Clear(); \
- break
- HANDLE_TYPE( INT32, int32);
- HANDLE_TYPE( INT64, int64);
- HANDLE_TYPE(UINT32, uint32);
- HANDLE_TYPE(UINT64, uint64);
- HANDLE_TYPE(DOUBLE, double);
- HANDLE_TYPE( FLOAT, float);
- HANDLE_TYPE( BOOL, bool);
- HANDLE_TYPE( ENUM, int);
- #undef HANDLE_TYPE
- case FieldDescriptor::CPPTYPE_STRING: {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- MutableRaw<RepeatedPtrField<string> >(message, field)->Clear();
- break;
- }
- break;
- }
- case FieldDescriptor::CPPTYPE_MESSAGE: {
- // We don't know which subclass of RepeatedPtrFieldBase the type is,
- // so we use RepeatedPtrFieldBase directly.
- MutableRaw<RepeatedPtrFieldBase>(message, field)
- ->Clear<GenericTypeHandler<Message> >();
- break;
- }
- }
- }
- }
- void GeneratedMessageReflection::RemoveLast(
- Message* message,
- const FieldDescriptor* field) const {
- USAGE_CHECK_MESSAGE_TYPE(RemoveLast);
- USAGE_CHECK_REPEATED(RemoveLast);
- if (field->is_extension()) {
- MutableExtensionSet(message)->RemoveLast(field->number());
- } else {
- switch (field->cpp_type()) {
- #define HANDLE_TYPE(UPPERCASE, LOWERCASE) \
- case FieldDescriptor::CPPTYPE_##UPPERCASE : \
- MutableRaw<RepeatedField<LOWERCASE> >(message, field)->RemoveLast(); \
- break
- HANDLE_TYPE( INT32, int32);
- HANDLE_TYPE( INT64, int64);
- HANDLE_TYPE(UINT32, uint32);
- HANDLE_TYPE(UINT64, uint64);
- HANDLE_TYPE(DOUBLE, double);
- HANDLE_TYPE( FLOAT, float);
- HANDLE_TYPE( BOOL, bool);
- HANDLE_TYPE( ENUM, int);
- #undef HANDLE_TYPE
- case FieldDescriptor::CPPTYPE_STRING:
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- MutableRaw<RepeatedPtrField<string> >(message, field)->RemoveLast();
- break;
- }
- break;
- case FieldDescriptor::CPPTYPE_MESSAGE:
- MutableRaw<RepeatedPtrFieldBase>(message, field)
- ->RemoveLast<GenericTypeHandler<Message> >();
- break;
- }
- }
- }
- void GeneratedMessageReflection::SwapElements(
- Message* message,
- const FieldDescriptor* field,
- int index1,
- int index2) const {
- USAGE_CHECK_MESSAGE_TYPE(Swap);
- USAGE_CHECK_REPEATED(Swap);
- if (field->is_extension()) {
- MutableExtensionSet(message)->SwapElements(field->number(), index1, index2);
- } else {
- switch (field->cpp_type()) {
- #define HANDLE_TYPE(UPPERCASE, LOWERCASE) \
- case FieldDescriptor::CPPTYPE_##UPPERCASE : \
- MutableRaw<RepeatedField<LOWERCASE> >(message, field) \
- ->SwapElements(index1, index2); \
- break
- HANDLE_TYPE( INT32, int32);
- HANDLE_TYPE( INT64, int64);
- HANDLE_TYPE(UINT32, uint32);
- HANDLE_TYPE(UINT64, uint64);
- HANDLE_TYPE(DOUBLE, double);
- HANDLE_TYPE( FLOAT, float);
- HANDLE_TYPE( BOOL, bool);
- HANDLE_TYPE( ENUM, int);
- #undef HANDLE_TYPE
- case FieldDescriptor::CPPTYPE_STRING:
- case FieldDescriptor::CPPTYPE_MESSAGE:
- MutableRaw<RepeatedPtrFieldBase>(message, field)
- ->SwapElements(index1, index2);
- break;
- }
- }
- }
- namespace {
- // Comparison functor for sorting FieldDescriptors by field number.
- struct FieldNumberSorter {
- bool operator()(const FieldDescriptor* left,
- const FieldDescriptor* right) const {
- return left->number() < right->number();
- }
- };
- } // namespace
- void GeneratedMessageReflection::ListFields(
- const Message& message,
- vector<const FieldDescriptor*>* output) const {
- output->clear();
- // Optimization: The default instance never has any fields set.
- if (&message == default_instance_) return;
- for (int i = 0; i < descriptor_->field_count(); i++) {
- const FieldDescriptor* field = descriptor_->field(i);
- if (field->is_repeated()) {
- if (FieldSize(message, field) > 0) {
- output->push_back(field);
- }
- } else {
- if (HasBit(message, field)) {
- output->push_back(field);
- }
- }
- }
- if (extensions_offset_ != -1) {
- GetExtensionSet(message).AppendToList(descriptor_, descriptor_pool_,
- output);
- }
- // ListFields() must sort output by field number.
- sort(output->begin(), output->end(), FieldNumberSorter());
- }
- // -------------------------------------------------------------------
- #undef DEFINE_PRIMITIVE_ACCESSORS
- #define DEFINE_PRIMITIVE_ACCESSORS(TYPENAME, TYPE, PASSTYPE, CPPTYPE) \
- PASSTYPE GeneratedMessageReflection::Get##TYPENAME( \
- const Message& message, const FieldDescriptor* field) const { \
- USAGE_CHECK_ALL(Get##TYPENAME, SINGULAR, CPPTYPE); \
- if (field->is_extension()) { \
- return GetExtensionSet(message).Get##TYPENAME( \
- field->number(), field->default_value_##PASSTYPE()); \
- } else { \
- return GetField<TYPE>(message, field); \
- } \
- } \
- \
- void GeneratedMessageReflection::Set##TYPENAME( \
- Message* message, const FieldDescriptor* field, \
- PASSTYPE value) const { \
- USAGE_CHECK_ALL(Set##TYPENAME, SINGULAR, CPPTYPE); \
- if (field->is_extension()) { \
- return MutableExtensionSet(message)->Set##TYPENAME( \
- field->number(), field->type(), value, field); \
- } else { \
- SetField<TYPE>(message, field, value); \
- } \
- } \
- \
- PASSTYPE GeneratedMessageReflection::GetRepeated##TYPENAME( \
- const Message& message, \
- const FieldDescriptor* field, int index) const { \
- USAGE_CHECK_ALL(GetRepeated##TYPENAME, REPEATED, CPPTYPE); \
- if (field->is_extension()) { \
- return GetExtensionSet(message).GetRepeated##TYPENAME( \
- field->number(), index); \
- } else { \
- return GetRepeatedField<TYPE>(message, field, index); \
- } \
- } \
- \
- void GeneratedMessageReflection::SetRepeated##TYPENAME( \
- Message* message, const FieldDescriptor* field, \
- int index, PASSTYPE value) const { \
- USAGE_CHECK_ALL(SetRepeated##TYPENAME, REPEATED, CPPTYPE); \
- if (field->is_extension()) { \
- MutableExtensionSet(message)->SetRepeated##TYPENAME( \
- field->number(), index, value); \
- } else { \
- SetRepeatedField<TYPE>(message, field, index, value); \
- } \
- } \
- \
- void GeneratedMessageReflection::Add##TYPENAME( \
- Message* message, const FieldDescriptor* field, \
- PASSTYPE value) const { \
- USAGE_CHECK_ALL(Add##TYPENAME, REPEATED, CPPTYPE); \
- if (field->is_extension()) { \
- MutableExtensionSet(message)->Add##TYPENAME( \
- field->number(), field->type(), field->options().packed(), value, \
- field); \
- } else { \
- AddField<TYPE>(message, field, value); \
- } \
- }
- DEFINE_PRIMITIVE_ACCESSORS(Int32 , int32 , int32 , INT32 )
- DEFINE_PRIMITIVE_ACCESSORS(Int64 , int64 , int64 , INT64 )
- DEFINE_PRIMITIVE_ACCESSORS(UInt32, uint32, uint32, UINT32)
- DEFINE_PRIMITIVE_ACCESSORS(UInt64, uint64, uint64, UINT64)
- DEFINE_PRIMITIVE_ACCESSORS(Float , float , float , FLOAT )
- DEFINE_PRIMITIVE_ACCESSORS(Double, double, double, DOUBLE)
- DEFINE_PRIMITIVE_ACCESSORS(Bool , bool , bool , BOOL )
- #undef DEFINE_PRIMITIVE_ACCESSORS
- // -------------------------------------------------------------------
- string GeneratedMessageReflection::GetString(
- const Message& message, const FieldDescriptor* field) const {
- USAGE_CHECK_ALL(GetString, SINGULAR, STRING);
- if (field->is_extension()) {
- return GetExtensionSet(message).GetString(field->number(),
- field->default_value_string());
- } else {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- return *GetField<const string*>(message, field);
- }
- GOOGLE_LOG(FATAL) << "Can't get here.";
- return kEmptyString; // Make compiler happy.
- }
- }
- const string& GeneratedMessageReflection::GetStringReference(
- const Message& message,
- const FieldDescriptor* field, string* scratch) const {
- USAGE_CHECK_ALL(GetStringReference, SINGULAR, STRING);
- if (field->is_extension()) {
- return GetExtensionSet(message).GetString(field->number(),
- field->default_value_string());
- } else {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- return *GetField<const string*>(message, field);
- }
- GOOGLE_LOG(FATAL) << "Can't get here.";
- return kEmptyString; // Make compiler happy.
- }
- }
- void GeneratedMessageReflection::SetString(
- Message* message, const FieldDescriptor* field,
- const string& value) const {
- USAGE_CHECK_ALL(SetString, SINGULAR, STRING);
- if (field->is_extension()) {
- return MutableExtensionSet(message)->SetString(field->number(),
- field->type(), value, field);
- } else {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING: {
- string** ptr = MutableField<string*>(message, field);
- if (*ptr == DefaultRaw<const string*>(field)) {
- *ptr = new string(value);
- } else {
- (*ptr)->assign(value);
- }
- break;
- }
- }
- }
- }
- string GeneratedMessageReflection::GetRepeatedString(
- const Message& message, const FieldDescriptor* field, int index) const {
- USAGE_CHECK_ALL(GetRepeatedString, REPEATED, STRING);
- if (field->is_extension()) {
- return GetExtensionSet(message).GetRepeatedString(field->number(), index);
- } else {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- return GetRepeatedPtrField<string>(message, field, index);
- }
- GOOGLE_LOG(FATAL) << "Can't get here.";
- return kEmptyString; // Make compiler happy.
- }
- }
- const string& GeneratedMessageReflection::GetRepeatedStringReference(
- const Message& message, const FieldDescriptor* field,
- int index, string* scratch) const {
- USAGE_CHECK_ALL(GetRepeatedStringReference, REPEATED, STRING);
- if (field->is_extension()) {
- return GetExtensionSet(message).GetRepeatedString(field->number(), index);
- } else {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- return GetRepeatedPtrField<string>(message, field, index);
- }
- GOOGLE_LOG(FATAL) << "Can't get here.";
- return kEmptyString; // Make compiler happy.
- }
- }
- void GeneratedMessageReflection::SetRepeatedString(
- Message* message, const FieldDescriptor* field,
- int index, const string& value) const {
- USAGE_CHECK_ALL(SetRepeatedString, REPEATED, STRING);
- if (field->is_extension()) {
- MutableExtensionSet(message)->SetRepeatedString(
- field->number(), index, value);
- } else {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- *MutableRepeatedField<string>(message, field, index) = value;
- break;
- }
- }
- }
- void GeneratedMessageReflection::AddString(
- Message* message, const FieldDescriptor* field,
- const string& value) const {
- USAGE_CHECK_ALL(AddString, REPEATED, STRING);
- if (field->is_extension()) {
- MutableExtensionSet(message)->AddString(field->number(),
- field->type(), value, field);
- } else {
- switch (field->options().ctype()) {
- default: // TODO(kenton): Support other string reps.
- case FieldOptions::STRING:
- *AddField<string>(message, field) = value;
- break;
- }
- }
- }
- // -------------------------------------------------------------------
- const EnumValueDescriptor* GeneratedMessageReflection::GetEnum(
- const Message& message, const FieldDescriptor* field) const {
- USAGE_CHECK_ALL(GetEnum, SINGULAR, ENUM);
- int value;
- if (field->is_extension()) {
- value = GetExtensionSet(message).GetEnum(
- field->number(), field->default_value_enum()->number());
- } else {
- value = GetField<int>(message, field);
- }
- const EnumValueDescriptor* result =
- field->enum_type()->FindValueByNumber(value);
- GOOGLE_CHECK(result != NULL);
- return result;
- }
- void GeneratedMessageReflection::SetEnum(
- Message* message, const FieldDescriptor* field,
- const EnumValueDescriptor* value) const {
- USAGE_CHECK_ALL(SetEnum, SINGULAR, ENUM);
- USAGE_CHECK_ENUM_VALUE(SetEnum);
- if (field->is_extension()) {
- MutableExtensionSet(message)->SetEnum(field->number(), field->type(),
- value->number(), field);
- } else {
- SetField<int>(message, field, value->number());
- }
- }
- const EnumValueDescriptor* GeneratedMessageReflection::GetRepeatedEnum(
- const Message& message, const FieldDescriptor* field, int index) const {
- USAGE_CHECK_ALL(GetRepeatedEnum, REPEATED, ENUM);
- int value;
- if (field->is_extension()) {
- value = GetExtensionSet(message).GetRepeatedEnum(field->number(), index);
- } else {
- value = GetRepeatedField<int>(message, field, index);
- }
- const EnumValueDescriptor* result =
- field->enum_type()->FindValueByNumber(value);
- GOOGLE_CHECK(result != NULL);
- return result;
- }
- void GeneratedMessageReflection::SetRepeatedEnum(
- Message* message,
- const FieldDescriptor* field, int index,
- const EnumValueDescriptor* value) const {
- USAGE_CHECK_ALL(SetRepeatedEnum, REPEATED, ENUM);
- USAGE_CHECK_ENUM_VALUE(SetRepeatedEnum);
- if (field->is_extension()) {
- MutableExtensionSet(message)->SetRepeatedEnum(
- field->number(), index, value->number());
- } else {
- SetRepeatedField<int>(message, field, index, value->number());
- }
- }
- void GeneratedMessageReflection::AddEnum(
- Message* message, const FieldDescriptor* field,
- const EnumValueDescriptor* value) const {
- USAGE_CHECK_ALL(AddEnum, REPEATED, ENUM);
- USAGE_CHECK_ENUM_VALUE(AddEnum);
- if (field->is_extension()) {
- MutableExtensionSet(message)->AddEnum(field->number(), field->type(),
- field->options().packed(),
- value->number(), field);
- } else {
- AddField<int>(message, field, value->number());
- }
- }
- // -------------------------------------------------------------------
- const Message& GeneratedMessageReflection::GetMessage(
- const Message& message, const FieldDescriptor* field,
- MessageFactory* factory) const {
- USAGE_CHECK_ALL(GetMessage, SINGULAR, MESSAGE);
- if (field->is_extension()) {
- return static_cast<const Message&>(
- GetExtensionSet(message).GetMessage(
- field->number(), field->message_type(),
- factory == NULL ? message_factory_ : factory));
- } else {
- const Message* result = GetRaw<const Message*>(message, field);
- if (result == NULL) {
- result = DefaultRaw<const Message*>(field);
- }
- return *result;
- }
- }
- Message* GeneratedMessageReflection::MutableMessage(
- Message* message, const FieldDescriptor* field,
- MessageFactory* factory) const {
- USAGE_CHECK_ALL(MutableMessage, SINGULAR, MESSAGE);
- if (field->is_extension()) {
- return static_cast<Message*>(
- MutableExtensionSet(message)->MutableMessage(field,
- factory == NULL ? message_factory_ : factory));
- } else {
- Message** result = MutableField<Message*>(message, field);
- if (*result == NULL) {
- const Message* default_message = DefaultRaw<const Message*>(field);
- *result = default_message->New();
- }
- return *result;
- }
- }
- const Message& GeneratedMessageReflection::GetRepeatedMessage(
- const Message& message, const FieldDescriptor* field, int index) const {
- USAGE_CHECK_ALL(GetRepeatedMessage, REPEATED, MESSAGE);
- if (field->is_extension()) {
- return static_cast<const Message&>(
- GetExtensionSet(message).GetRepeatedMessage(field->number(), index));
- } else {
- return GetRaw<RepeatedPtrFieldBase>(message, field)
- .Get<GenericTypeHandler<Message> >(index);
- }
- }
- Message* GeneratedMessageReflection::MutableRepeatedMessage(
- Message* message, const FieldDescriptor* field, int index) const {
- USAGE_CHECK_ALL(MutableRepeatedMessage, REPEATED, MESSAGE);
- if (field->is_extension()) {
- return static_cast<Message*>(
- MutableExtensionSet(message)->MutableRepeatedMessage(
- field->number(), index));
- } else {
- return MutableRaw<RepeatedPtrFieldBase>(message, field)
- ->Mutable<GenericTypeHandler<Message> >(index);
- }
- }
- Message* GeneratedMessageReflection::AddMessage(
- Message* message, const FieldDescriptor* field,
- MessageFactory* factory) const {
- USAGE_CHECK_ALL(AddMessage, REPEATED, MESSAGE);
- if (factory == NULL) factory = message_factory_;
- if (field->is_extension()) {
- return static_cast<Message*>(
- MutableExtensionSet(message)->AddMessage(field, factory));
- } else {
- // We can't use AddField<Message>() because RepeatedPtrFieldBase doesn't
- // know how to allocate one.
- RepeatedPtrFieldBase* repeated =
- MutableRaw<RepeatedPtrFieldBase>(message, field);
- Message* result = repeated->AddFromCleared<GenericTypeHandler<Message> >();
- if (result == NULL) {
- // We must allocate a new object.
- const Message* prototype;
- if (repeated->size() == 0) {
- prototype = factory->GetPrototype(field->message_type());
- } else {
- prototype = &repeated->Get<GenericTypeHandler<Message> >(0);
- }
- result = prototype->New();
- repeated->AddAllocated<GenericTypeHandler<Message> >(result);
- }
- return result;
- }
- }
- // -------------------------------------------------------------------
- const FieldDescriptor* GeneratedMessageReflection::FindKnownExtensionByName(
- const string& name) const {
- if (extensions_offset_ == -1) return NULL;
- const FieldDescriptor* result = descriptor_pool_->FindExtensionByName(name);
- if (result != NULL && result->containing_type() == descriptor_) {
- return result;
- }
- if (descriptor_->options().message_set_wire_format()) {
- // MessageSet extensions may be identified by type name.
- const Descriptor* type = descriptor_pool_->FindMessageTypeByName(name);
- if (type != NULL) {
- // Look for a matching extension in the foreign type's scope.
- for (int i = 0; i < type->extension_count(); i++) {
- const FieldDescriptor* extension = type->extension(i);
- if (extension->containing_type() == descriptor_ &&
- extension->type() == FieldDescriptor::TYPE_MESSAGE &&
- extension->is_optional() &&
- extension->message_type() == type) {
- // Found it.
- return extension;
- }
- }
- }
- }
- return NULL;
- }
- const FieldDescriptor* GeneratedMessageReflection::FindKnownExtensionByNumber(
- int number) const {
- if (extensions_offset_ == -1) return NULL;
- return descriptor_pool_->FindExtensionByNumber(descriptor_, number);
- }
- // ===================================================================
- // Some private helpers.
- // These simple template accessors obtain pointers (or references) to
- // the given field.
- template <typename Type>
- inline const Type& GeneratedMessageReflection::GetRaw(
- const Message& message, const FieldDescriptor* field) const {
- const void* ptr = reinterpret_cast<const uint8*>(&message) +
- offsets_[field->index()];
- return *reinterpret_cast<const Type*>(ptr);
- }
- template <typename Type>
- inline Type* GeneratedMessageReflection::MutableRaw(
- Message* message, const FieldDescriptor* field) const {
- void* ptr = reinterpret_cast<uint8*>(message) + offsets_[field->index()];
- return reinterpret_cast<Type*>(ptr);
- }
- template <typename Type>
- inline const Type& GeneratedMessageReflection::DefaultRaw(
- const FieldDescriptor* field) const {
- const void* ptr = reinterpret_cast<const uint8*>(default_instance_) +
- offsets_[field->index()];
- return *reinterpret_cast<const Type*>(ptr);
- }
- inline const uint32* GeneratedMessageReflection::GetHasBits(
- const Message& message) const {
- const void* ptr = reinterpret_cast<const uint8*>(&message) + has_bits_offset_;
- return reinterpret_cast<const uint32*>(ptr);
- }
- inline uint32* GeneratedMessageReflection::MutableHasBits(
- Message* message) const {
- void* ptr = reinterpret_cast<uint8*>(message) + has_bits_offset_;
- return reinterpret_cast<uint32*>(ptr);
- }
- inline const ExtensionSet& GeneratedMessageReflection::GetExtensionSet(
- const Message& message) const {
- GOOGLE_DCHECK_NE(extensions_offset_, -1);
- const void* ptr = reinterpret_cast<const uint8*>(&message) +
- extensions_offset_;
- return *reinterpret_cast<const ExtensionSet*>(ptr);
- }
- inline ExtensionSet* GeneratedMessageReflection::MutableExtensionSet(
- Message* message) const {
- GOOGLE_DCHECK_NE(extensions_offset_, -1);
- void* ptr = reinterpret_cast<uint8*>(message) + extensions_offset_;
- return reinterpret_cast<ExtensionSet*>(ptr);
- }
- // Simple accessors for manipulating has_bits_.
- inline bool GeneratedMessageReflection::HasBit(
- const Message& message, const FieldDescriptor* field) const {
- return GetHasBits(message)[field->index() / 32] &
- (1 << (field->index() % 32));
- }
- inline void GeneratedMessageReflection::SetBit(
- Message* message, const FieldDescriptor* field) const {
- MutableHasBits(message)[field->index() / 32] |= (1 << (field->index() % 32));
- }
- inline void GeneratedMessageReflection::ClearBit(
- Message* message, const FieldDescriptor* field) const {
- MutableHasBits(message)[field->index() / 32] &= ~(1 << (field->index() % 32));
- }
- // Template implementations of basic accessors. Inline because each
- // template instance is only called from one location. These are
- // used for all types except messages.
- template <typename Type>
- inline const Type& GeneratedMessageReflection::GetField(
- const Message& message, const FieldDescriptor* field) const {
- return GetRaw<Type>(message, field);
- }
- template <typename Type>
- inline void GeneratedMessageReflection::SetField(
- Message* message, const FieldDescriptor* field, const Type& value) const {
- *MutableRaw<Type>(message, field) = value;
- SetBit(message, field);
- }
- template <typename Type>
- inline Type* GeneratedMessageReflection::MutableField(
- Message* message, const FieldDescriptor* field) const {
- SetBit(message, field);
- return MutableRaw<Type>(message, field);
- }
- template <typename Type>
- inline const Type& GeneratedMessageReflection::GetRepeatedField(
- const Message& message, const FieldDescriptor* field, int index) const {
- return GetRaw<RepeatedField<Type> >(message, field).Get(index);
- }
- template <typename Type>
- inline const Type& GeneratedMessageReflection::GetRepeatedPtrField(
- const Message& message, const FieldDescriptor* field, int index) const {
- return GetRaw<RepeatedPtrField<Type> >(message, field).Get(index);
- }
- template <typename Type>
- inline void GeneratedMessageReflection::SetRepeatedField(
- Message* message, const FieldDescriptor* field,
- int index, Type value) const {
- MutableRaw<RepeatedField<Type> >(message, field)->Set(index, value);
- }
- template <typename Type>
- inline Type* GeneratedMessageReflection::MutableRepeatedField(
- Message* message, const FieldDescriptor* field, int index) const {
- RepeatedPtrField<Type>* repeated =
- MutableRaw<RepeatedPtrField<Type> >(message, field);
- return repeated->Mutable(index);
- }
- template <typename Type>
- inline void GeneratedMessageReflection::AddField(
- Message* message, const FieldDescriptor* field, const Type& value) const {
- MutableRaw<RepeatedField<Type> >(message, field)->Add(value);
- }
- template <typename Type>
- inline Type* GeneratedMessageReflection::AddField(
- Message* message, const FieldDescriptor* field) const {
- RepeatedPtrField<Type>* repeated =
- MutableRaw<RepeatedPtrField<Type> >(message, field);
- return repeated->Add();
- }
- } // namespace internal
- } // namespace protobuf
- } // namespace google