| // 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, |
| 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, |
| 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, |
| 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 *decriptor = [extension.msgClass descriptor]; |
| message = [[decriptor.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 |
