Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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279 lines
10 KiB
279 lines
10 KiB
// Protocol Buffers - Google's data interchange format |
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// Copyright 2008 Google Inc. All rights reserved. |
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// https://developers.google.com/protocol-buffers/ |
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// |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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// met: |
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// |
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// * Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// * Redistributions in binary form must reproduce the above |
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// copyright notice, this list of conditions and the following disclaimer |
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// in the documentation and/or other materials provided with the |
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// distribution. |
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// * Neither the name of Google Inc. nor the names of its |
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// contributors may be used to endorse or promote products derived from |
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// this software without specific prior written permission. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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#import "GPBExtensionInternals.h" |
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#import <objc/runtime.h> |
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#import "GPBCodedInputStream_PackagePrivate.h" |
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#import "GPBCodedOutputStream_PackagePrivate.h" |
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#import "GPBDescriptor_PackagePrivate.h" |
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#import "GPBMessage_PackagePrivate.h" |
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#import "GPBUtilities_PackagePrivate.h" |
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GPB_INLINE size_t DataTypeSize(GPBDataType dataType) { |
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#pragma clang diagnostic push |
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#pragma clang diagnostic ignored "-Wswitch-enum" |
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switch (dataType) { |
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case GPBDataTypeBool: |
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return 1; |
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case GPBDataTypeFixed32: |
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case GPBDataTypeSFixed32: |
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case GPBDataTypeFloat: |
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return 4; |
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case GPBDataTypeFixed64: |
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case GPBDataTypeSFixed64: |
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case GPBDataTypeDouble: |
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return 8; |
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default: |
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return 0; |
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} |
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#pragma clang diagnostic pop |
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} |
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static size_t ComputePBSerializedSizeNoTagOfObject(GPBDataType dataType, id object) { |
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#define FIELD_CASE(TYPE, ACCESSOR) \ |
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case GPBDataType##TYPE: \ |
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return GPBCompute##TYPE##SizeNoTag([(NSNumber *)object ACCESSOR]); |
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#define FIELD_CASE2(TYPE) \ |
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case GPBDataType##TYPE: \ |
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return GPBCompute##TYPE##SizeNoTag(object); |
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switch (dataType) { |
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FIELD_CASE(Bool, boolValue) |
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FIELD_CASE(Float, floatValue) |
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FIELD_CASE(Double, doubleValue) |
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FIELD_CASE(Int32, intValue) |
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FIELD_CASE(SFixed32, intValue) |
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FIELD_CASE(SInt32, intValue) |
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FIELD_CASE(Enum, intValue) |
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FIELD_CASE(Int64, longLongValue) |
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FIELD_CASE(SInt64, longLongValue) |
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FIELD_CASE(SFixed64, longLongValue) |
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FIELD_CASE(UInt32, unsignedIntValue) |
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FIELD_CASE(Fixed32, unsignedIntValue) |
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FIELD_CASE(UInt64, unsignedLongLongValue) |
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FIELD_CASE(Fixed64, unsignedLongLongValue) |
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FIELD_CASE2(Bytes) |
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FIELD_CASE2(String) |
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FIELD_CASE2(Message) |
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FIELD_CASE2(Group) |
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} |
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#undef FIELD_CASE |
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#undef FIELD_CASE2 |
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} |
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static size_t ComputeSerializedSizeIncludingTagOfObject(GPBExtensionDescription *description, |
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id object) { |
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#define FIELD_CASE(TYPE, ACCESSOR) \ |
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case GPBDataType##TYPE: \ |
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return GPBCompute##TYPE##Size(description->fieldNumber, [(NSNumber *)object ACCESSOR]); |
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#define FIELD_CASE2(TYPE) \ |
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case GPBDataType##TYPE: \ |
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return GPBCompute##TYPE##Size(description->fieldNumber, object); |
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switch (description->dataType) { |
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FIELD_CASE(Bool, boolValue) |
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FIELD_CASE(Float, floatValue) |
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FIELD_CASE(Double, doubleValue) |
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FIELD_CASE(Int32, intValue) |
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FIELD_CASE(SFixed32, intValue) |
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FIELD_CASE(SInt32, intValue) |
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FIELD_CASE(Enum, intValue) |
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FIELD_CASE(Int64, longLongValue) |
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FIELD_CASE(SInt64, longLongValue) |
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FIELD_CASE(SFixed64, longLongValue) |
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FIELD_CASE(UInt32, unsignedIntValue) |
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FIELD_CASE(Fixed32, unsignedIntValue) |
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FIELD_CASE(UInt64, unsignedLongLongValue) |
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FIELD_CASE(Fixed64, unsignedLongLongValue) |
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FIELD_CASE2(Bytes) |
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FIELD_CASE2(String) |
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FIELD_CASE2(Group) |
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case GPBDataTypeMessage: |
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if (GPBExtensionIsWireFormat(description)) { |
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return GPBComputeMessageSetExtensionSize(description->fieldNumber, object); |
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} else { |
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return GPBComputeMessageSize(description->fieldNumber, object); |
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} |
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} |
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#undef FIELD_CASE |
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#undef FIELD_CASE2 |
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} |
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static size_t ComputeSerializedSizeIncludingTagOfArray(GPBExtensionDescription *description, |
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NSArray *values) { |
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if (GPBExtensionIsPacked(description)) { |
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size_t size = 0; |
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size_t typeSize = DataTypeSize(description->dataType); |
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if (typeSize != 0) { |
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size = values.count * typeSize; |
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} else { |
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for (id value in values) { |
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size += ComputePBSerializedSizeNoTagOfObject(description->dataType, value); |
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} |
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} |
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return size + GPBComputeTagSize(description->fieldNumber) + |
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GPBComputeRawVarint32SizeForInteger(size); |
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} else { |
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size_t size = 0; |
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for (id value in values) { |
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size += ComputeSerializedSizeIncludingTagOfObject(description, value); |
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} |
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return size; |
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} |
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} |
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static void WriteObjectIncludingTagToCodedOutputStream(id object, |
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GPBExtensionDescription *description, |
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GPBCodedOutputStream *output) { |
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#define FIELD_CASE(TYPE, ACCESSOR) \ |
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case GPBDataType##TYPE: \ |
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[output write##TYPE:description->fieldNumber value:[(NSNumber *)object ACCESSOR]]; \ |
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return; |
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#define FIELD_CASE2(TYPE) \ |
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case GPBDataType##TYPE: \ |
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[output write##TYPE:description->fieldNumber value:object]; \ |
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return; |
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switch (description->dataType) { |
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FIELD_CASE(Bool, boolValue) |
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FIELD_CASE(Float, floatValue) |
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FIELD_CASE(Double, doubleValue) |
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FIELD_CASE(Int32, intValue) |
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FIELD_CASE(SFixed32, intValue) |
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FIELD_CASE(SInt32, intValue) |
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FIELD_CASE(Enum, intValue) |
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FIELD_CASE(Int64, longLongValue) |
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FIELD_CASE(SInt64, longLongValue) |
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FIELD_CASE(SFixed64, longLongValue) |
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FIELD_CASE(UInt32, unsignedIntValue) |
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FIELD_CASE(Fixed32, unsignedIntValue) |
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FIELD_CASE(UInt64, unsignedLongLongValue) |
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FIELD_CASE(Fixed64, unsignedLongLongValue) |
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FIELD_CASE2(Bytes) |
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FIELD_CASE2(String) |
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FIELD_CASE2(Group) |
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case GPBDataTypeMessage: |
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if (GPBExtensionIsWireFormat(description)) { |
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[output writeMessageSetExtension:description->fieldNumber value:object]; |
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} else { |
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[output writeMessage:description->fieldNumber value:object]; |
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} |
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return; |
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} |
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#undef FIELD_CASE |
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#undef FIELD_CASE2 |
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} |
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static void WriteObjectNoTagToCodedOutputStream(id object, GPBExtensionDescription *description, |
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GPBCodedOutputStream *output) { |
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#define FIELD_CASE(TYPE, ACCESSOR) \ |
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case GPBDataType##TYPE: \ |
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[output write##TYPE##NoTag:[(NSNumber *)object ACCESSOR]]; \ |
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return; |
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#define FIELD_CASE2(TYPE) \ |
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case GPBDataType##TYPE: \ |
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[output write##TYPE##NoTag:object]; \ |
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return; |
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switch (description->dataType) { |
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FIELD_CASE(Bool, boolValue) |
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FIELD_CASE(Float, floatValue) |
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FIELD_CASE(Double, doubleValue) |
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FIELD_CASE(Int32, intValue) |
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FIELD_CASE(SFixed32, intValue) |
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FIELD_CASE(SInt32, intValue) |
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FIELD_CASE(Enum, intValue) |
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FIELD_CASE(Int64, longLongValue) |
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FIELD_CASE(SInt64, longLongValue) |
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FIELD_CASE(SFixed64, longLongValue) |
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FIELD_CASE(UInt32, unsignedIntValue) |
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FIELD_CASE(Fixed32, unsignedIntValue) |
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FIELD_CASE(UInt64, unsignedLongLongValue) |
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FIELD_CASE(Fixed64, unsignedLongLongValue) |
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FIELD_CASE2(Bytes) |
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FIELD_CASE2(String) |
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FIELD_CASE2(Message) |
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case GPBDataTypeGroup: |
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[output writeGroupNoTag:description->fieldNumber value:object]; |
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return; |
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} |
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#undef FIELD_CASE |
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#undef FIELD_CASE2 |
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} |
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static void WriteArrayIncludingTagsToCodedOutputStream(NSArray *values, |
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GPBExtensionDescription *description, |
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GPBCodedOutputStream *output) { |
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if (GPBExtensionIsPacked(description)) { |
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[output writeTag:description->fieldNumber format:GPBWireFormatLengthDelimited]; |
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size_t dataSize = 0; |
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size_t typeSize = DataTypeSize(description->dataType); |
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if (typeSize != 0) { |
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dataSize = values.count * typeSize; |
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} else { |
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for (id value in values) { |
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dataSize += ComputePBSerializedSizeNoTagOfObject(description->dataType, value); |
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} |
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} |
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[output writeRawVarintSizeTAs32:dataSize]; |
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for (id value in values) { |
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WriteObjectNoTagToCodedOutputStream(value, description, output); |
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} |
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} else { |
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for (id value in values) { |
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WriteObjectIncludingTagToCodedOutputStream(value, description, output); |
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} |
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} |
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} |
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// Direct access is use for speed, to avoid even internally declaring things |
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// read/write, etc. The warning is enabled in the project to ensure code calling |
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// protos can turn on -Wdirect-ivar-access without issues. |
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#pragma clang diagnostic push |
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#pragma clang diagnostic ignored "-Wdirect-ivar-access" |
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void GPBWriteExtensionValueToOutputStream(GPBExtensionDescriptor *extension, id value, |
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GPBCodedOutputStream *output) { |
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GPBExtensionDescription *description = extension->description_; |
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if (GPBExtensionIsRepeated(description)) { |
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WriteArrayIncludingTagsToCodedOutputStream(value, description, output); |
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} else { |
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WriteObjectIncludingTagToCodedOutputStream(value, description, output); |
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} |
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} |
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size_t GPBComputeExtensionSerializedSizeIncludingTag(GPBExtensionDescriptor *extension, id value) { |
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GPBExtensionDescription *description = extension->description_; |
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if (GPBExtensionIsRepeated(description)) { |
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return ComputeSerializedSizeIncludingTagOfArray(description, value); |
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} else { |
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return ComputeSerializedSizeIncludingTagOfObject(description, value); |
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} |
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} |
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#pragma clang diagnostic pop
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