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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
#import "GPBExtensionInternals.h"
#import <objc/runtime.h>
#import "GPBCodedInputStream.h"
#import "GPBCodedInputStream_PackagePrivate.h"
#import "GPBCodedOutputStream.h"
#import "GPBCodedOutputStream_PackagePrivate.h"
#import "GPBDescriptor.h"
#import "GPBDescriptor_PackagePrivate.h"
#import "GPBMessage.h"
#import "GPBMessage_PackagePrivate.h"
#import "GPBUtilities.h"
#import "GPBUtilities_PackagePrivate.h"
GPB_INLINE size_t DataTypeSize(GPBDataType dataType) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wswitch-enum"
switch (dataType) {
case GPBDataTypeBool:
return 1;
case GPBDataTypeFixed32:
case GPBDataTypeSFixed32:
case GPBDataTypeFloat:
return 4;
case GPBDataTypeFixed64:
case GPBDataTypeSFixed64:
case GPBDataTypeDouble:
return 8;
default:
return 0;
}
#pragma clang diagnostic pop
}
static size_t ComputePBSerializedSizeNoTagOfObject(GPBDataType dataType, id object) {
#define FIELD_CASE(TYPE, ACCESSOR) \
case GPBDataType##TYPE: \
return GPBCompute##TYPE##SizeNoTag([(NSNumber *)object ACCESSOR]);
#define FIELD_CASE2(TYPE) \
case GPBDataType##TYPE: \
return GPBCompute##TYPE##SizeNoTag(object);
switch (dataType) {
FIELD_CASE(Bool, boolValue)
FIELD_CASE(Float, floatValue)
FIELD_CASE(Double, doubleValue)
FIELD_CASE(Int32, intValue)
FIELD_CASE(SFixed32, intValue)
FIELD_CASE(SInt32, intValue)
FIELD_CASE(Enum, intValue)
FIELD_CASE(Int64, longLongValue)
FIELD_CASE(SInt64, longLongValue)
FIELD_CASE(SFixed64, longLongValue)
FIELD_CASE(UInt32, unsignedIntValue)
FIELD_CASE(Fixed32, unsignedIntValue)
FIELD_CASE(UInt64, unsignedLongLongValue)
FIELD_CASE(Fixed64, unsignedLongLongValue)
FIELD_CASE2(Bytes)
FIELD_CASE2(String)
FIELD_CASE2(Message)
FIELD_CASE2(Group)
}
#undef FIELD_CASE
#undef FIELD_CASE2
}
static size_t ComputeSerializedSizeIncludingTagOfObject(GPBExtensionDescription *description,
id object) {
#define FIELD_CASE(TYPE, ACCESSOR) \
case GPBDataType##TYPE: \
return GPBCompute##TYPE##Size(description->fieldNumber, [(NSNumber *)object ACCESSOR]);
#define FIELD_CASE2(TYPE) \
case GPBDataType##TYPE: \
return GPBCompute##TYPE##Size(description->fieldNumber, object);
switch (description->dataType) {
FIELD_CASE(Bool, boolValue)
FIELD_CASE(Float, floatValue)
FIELD_CASE(Double, doubleValue)
FIELD_CASE(Int32, intValue)
FIELD_CASE(SFixed32, intValue)
FIELD_CASE(SInt32, intValue)
FIELD_CASE(Enum, intValue)
FIELD_CASE(Int64, longLongValue)
FIELD_CASE(SInt64, longLongValue)
FIELD_CASE(SFixed64, longLongValue)
FIELD_CASE(UInt32, unsignedIntValue)
FIELD_CASE(Fixed32, unsignedIntValue)
FIELD_CASE(UInt64, unsignedLongLongValue)
FIELD_CASE(Fixed64, unsignedLongLongValue)
FIELD_CASE2(Bytes)
FIELD_CASE2(String)
FIELD_CASE2(Group)
case GPBDataTypeMessage:
if (GPBExtensionIsWireFormat(description)) {
return GPBComputeMessageSetExtensionSize(description->fieldNumber, object);
} else {
return GPBComputeMessageSize(description->fieldNumber, object);
}
}
#undef FIELD_CASE
#undef FIELD_CASE2
}
static size_t ComputeSerializedSizeIncludingTagOfArray(GPBExtensionDescription *description,
NSArray *values) {
if (GPBExtensionIsPacked(description)) {
size_t size = 0;
size_t typeSize = DataTypeSize(description->dataType);
if (typeSize != 0) {
size = values.count * typeSize;
} else {
for (id value in values) {
size += ComputePBSerializedSizeNoTagOfObject(description->dataType, value);
}
}
return size + GPBComputeTagSize(description->fieldNumber) +
GPBComputeRawVarint32SizeForInteger(size);
} else {
size_t size = 0;
for (id value in values) {
size += ComputeSerializedSizeIncludingTagOfObject(description, value);
}
return size;
}
}
static void WriteObjectIncludingTagToCodedOutputStream(id object,
GPBExtensionDescription *description,
GPBCodedOutputStream *output) {
#define FIELD_CASE(TYPE, ACCESSOR) \
case GPBDataType##TYPE: \
[output write##TYPE:description->fieldNumber value:[(NSNumber *)object ACCESSOR]]; \
return;
#define FIELD_CASE2(TYPE) \
case GPBDataType##TYPE: \
[output write##TYPE:description->fieldNumber value:object]; \
return;
switch (description->dataType) {
FIELD_CASE(Bool, boolValue)
FIELD_CASE(Float, floatValue)
FIELD_CASE(Double, doubleValue)
FIELD_CASE(Int32, intValue)
FIELD_CASE(SFixed32, intValue)
FIELD_CASE(SInt32, intValue)
FIELD_CASE(Enum, intValue)
FIELD_CASE(Int64, longLongValue)
FIELD_CASE(SInt64, longLongValue)
FIELD_CASE(SFixed64, longLongValue)
FIELD_CASE(UInt32, unsignedIntValue)
FIELD_CASE(Fixed32, unsignedIntValue)
FIELD_CASE(UInt64, unsignedLongLongValue)
FIELD_CASE(Fixed64, unsignedLongLongValue)
FIELD_CASE2(Bytes)
FIELD_CASE2(String)
FIELD_CASE2(Group)
case GPBDataTypeMessage:
if (GPBExtensionIsWireFormat(description)) {
[output writeMessageSetExtension:description->fieldNumber value:object];
} else {
[output writeMessage:description->fieldNumber value:object];
}
return;
}
#undef FIELD_CASE
#undef FIELD_CASE2
}
static void WriteObjectNoTagToCodedOutputStream(id object, GPBExtensionDescription *description,
GPBCodedOutputStream *output) {
#define FIELD_CASE(TYPE, ACCESSOR) \
case GPBDataType##TYPE: \
[output write##TYPE##NoTag:[(NSNumber *)object ACCESSOR]]; \
return;
#define FIELD_CASE2(TYPE) \
case GPBDataType##TYPE: \
[output write##TYPE##NoTag:object]; \
return;
switch (description->dataType) {
FIELD_CASE(Bool, boolValue)
FIELD_CASE(Float, floatValue)
FIELD_CASE(Double, doubleValue)
FIELD_CASE(Int32, intValue)
FIELD_CASE(SFixed32, intValue)
FIELD_CASE(SInt32, intValue)
FIELD_CASE(Enum, intValue)
FIELD_CASE(Int64, longLongValue)
FIELD_CASE(SInt64, longLongValue)
FIELD_CASE(SFixed64, longLongValue)
FIELD_CASE(UInt32, unsignedIntValue)
FIELD_CASE(Fixed32, unsignedIntValue)
FIELD_CASE(UInt64, unsignedLongLongValue)
FIELD_CASE(Fixed64, unsignedLongLongValue)
FIELD_CASE2(Bytes)
FIELD_CASE2(String)
FIELD_CASE2(Message)
case GPBDataTypeGroup:
[output writeGroupNoTag:description->fieldNumber value:object];
return;
}
#undef FIELD_CASE
#undef FIELD_CASE2
}
static void WriteArrayIncludingTagsToCodedOutputStream(NSArray *values,
GPBExtensionDescription *description,
GPBCodedOutputStream *output) {
if (GPBExtensionIsPacked(description)) {
[output writeTag:description->fieldNumber format:GPBWireFormatLengthDelimited];
size_t dataSize = 0;
size_t typeSize = DataTypeSize(description->dataType);
if (typeSize != 0) {
dataSize = values.count * typeSize;
} else {
for (id value in values) {
dataSize += ComputePBSerializedSizeNoTagOfObject(description->dataType, value);
}
}
[output writeRawVarintSizeTAs32:dataSize];
for (id value in values) {
WriteObjectNoTagToCodedOutputStream(value, description, output);
}
} else {
for (id value in values) {
WriteObjectIncludingTagToCodedOutputStream(value, description, output);
}
}
}
// Direct access is use for speed, to avoid even internally declaring things
// read/write, etc. The warning is enabled in the project to ensure code calling
// protos can turn on -Wdirect-ivar-access without issues.
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdirect-ivar-access"
void GPBWriteExtensionValueToOutputStream(GPBExtensionDescriptor *extension, id value,
GPBCodedOutputStream *output) {
GPBExtensionDescription *description = extension->description_;
if (GPBExtensionIsRepeated(description)) {
WriteArrayIncludingTagsToCodedOutputStream(value, description, output);
} else {
WriteObjectIncludingTagToCodedOutputStream(value, description, output);
}
}
size_t GPBComputeExtensionSerializedSizeIncludingTag(GPBExtensionDescriptor *extension, id value) {
GPBExtensionDescription *description = extension->description_;
if (GPBExtensionIsRepeated(description)) {
return ComputeSerializedSizeIncludingTagOfArray(description, value);
} else {
return ComputeSerializedSizeIncludingTagOfObject(description, value);
}
}
#pragma clang diagnostic pop