| // 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. | |
| #import "GPBExtensionInternals.h" | |
| #import <objc/runtime.h> | |
| #import "GPBCodedInputStream_PackagePrivate.h" | |
| #import "GPBCodedOutputStream_PackagePrivate.h" | |
| #import "GPBDescriptor_PackagePrivate.h" | |
| #import "GPBMessage_PackagePrivate.h" | |
| #import "GPBUtilities_PackagePrivate.h" | |
| static id NewSingleValueFromInputStream(GPBExtensionDescriptor *extension, | |
| GPBCodedInputStream *input, | |
| id<GPBExtensionRegistry> extensionRegistry, | |
| GPBMessage *existingValue) | |
| __attribute__((ns_returns_retained)); | |
| 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 GPBExtensionMergeFromInputStream(GPBExtensionDescriptor *extension, BOOL isPackedOnStream, | |
| GPBCodedInputStream *input, | |
| id<GPBExtensionRegistry> extensionRegistry, | |
| GPBMessage *message) { | |
| GPBExtensionDescription *description = extension->description_; | |
| GPBCodedInputStreamState *state = &input->state_; | |
| if (isPackedOnStream) { | |
| NSCAssert(GPBExtensionIsRepeated(description), @"How was it packed if it isn't repeated?"); | |
| int32_t length = GPBCodedInputStreamReadInt32(state); | |
| size_t limit = GPBCodedInputStreamPushLimit(state, length); | |
| while (GPBCodedInputStreamBytesUntilLimit(state) > 0) { | |
| id value = NewSingleValueFromInputStream(extension, input, extensionRegistry, nil); | |
| [message addExtension:extension value:value]; | |
| [value release]; | |
| } | |
| GPBCodedInputStreamPopLimit(state, limit); | |
| } else { | |
| id existingValue = nil; | |
| BOOL isRepeated = GPBExtensionIsRepeated(description); | |
| if (!isRepeated && GPBDataTypeIsMessage(description->dataType)) { | |
| existingValue = [message getExistingExtension:extension]; | |
| } | |
| id value = NewSingleValueFromInputStream(extension, input, extensionRegistry, existingValue); | |
| if (isRepeated) { | |
| [message addExtension:extension value:value]; | |
| } else { | |
| [message setExtension:extension value:value]; | |
| } | |
| [value release]; | |
| } | |
| } | |
| 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); | |
| } | |
| } | |
| // Note that this returns a retained value intentionally. | |
| static id NewSingleValueFromInputStream(GPBExtensionDescriptor *extension, | |
| GPBCodedInputStream *input, | |
| id<GPBExtensionRegistry> extensionRegistry, | |
| GPBMessage *existingValue) { | |
| GPBExtensionDescription *description = extension->description_; | |
| GPBCodedInputStreamState *state = &input->state_; | |
| switch (description->dataType) { | |
| case GPBDataTypeBool: | |
| return [[NSNumber alloc] initWithBool:GPBCodedInputStreamReadBool(state)]; | |
| case GPBDataTypeFixed32: | |
| return [[NSNumber alloc] initWithUnsignedInt:GPBCodedInputStreamReadFixed32(state)]; | |
| case GPBDataTypeSFixed32: | |
| return [[NSNumber alloc] initWithInt:GPBCodedInputStreamReadSFixed32(state)]; | |
| case GPBDataTypeFloat: | |
| return [[NSNumber alloc] initWithFloat:GPBCodedInputStreamReadFloat(state)]; | |
| case GPBDataTypeFixed64: | |
| return [[NSNumber alloc] initWithUnsignedLongLong:GPBCodedInputStreamReadFixed64(state)]; | |
| case GPBDataTypeSFixed64: | |
| return [[NSNumber alloc] initWithLongLong:GPBCodedInputStreamReadSFixed64(state)]; | |
| case GPBDataTypeDouble: | |
| return [[NSNumber alloc] initWithDouble:GPBCodedInputStreamReadDouble(state)]; | |
| case GPBDataTypeInt32: | |
| return [[NSNumber alloc] initWithInt:GPBCodedInputStreamReadInt32(state)]; | |
| case GPBDataTypeInt64: | |
| return [[NSNumber alloc] initWithLongLong:GPBCodedInputStreamReadInt64(state)]; | |
| case GPBDataTypeSInt32: | |
| return [[NSNumber alloc] initWithInt:GPBCodedInputStreamReadSInt32(state)]; | |
| case GPBDataTypeSInt64: | |
| return [[NSNumber alloc] initWithLongLong:GPBCodedInputStreamReadSInt64(state)]; | |
| case GPBDataTypeUInt32: | |
| return [[NSNumber alloc] initWithUnsignedInt:GPBCodedInputStreamReadUInt32(state)]; | |
| case GPBDataTypeUInt64: | |
| return [[NSNumber alloc] initWithUnsignedLongLong:GPBCodedInputStreamReadUInt64(state)]; | |
| case GPBDataTypeBytes: | |
| return GPBCodedInputStreamReadRetainedBytes(state); | |
| case GPBDataTypeString: | |
| return GPBCodedInputStreamReadRetainedString(state); | |
| case GPBDataTypeEnum: | |
| return [[NSNumber alloc] initWithInt:GPBCodedInputStreamReadEnum(state)]; | |
| case GPBDataTypeGroup: | |
| case GPBDataTypeMessage: { | |
| GPBMessage *message; | |
| if (existingValue) { | |
| message = [existingValue retain]; | |
| } else { | |
| GPBDescriptor *descriptor = [extension.msgClass descriptor]; | |
| message = [[descriptor.messageClass alloc] init]; | |
| } | |
| if (description->dataType == GPBDataTypeGroup) { | |
| [input readGroup:description->fieldNumber | |
| message:message | |
| extensionRegistry:extensionRegistry]; | |
| } else { | |
| // description->dataType == GPBDataTypeMessage | |
| if (GPBExtensionIsWireFormat(description)) { | |
| // For MessageSet fields the message length will have already been | |
| // read. | |
| [message mergeFromCodedInputStream:input extensionRegistry:extensionRegistry]; | |
| } else { | |
| [input readMessage:message extensionRegistry:extensionRegistry]; | |
| } | |
| } | |
| return message; | |
| } | |
| } | |
| return nil; | |
| } | |
| #pragma clang diagnostic pop |