86 lines
3.6 KiB
Mathematica
86 lines
3.6 KiB
Mathematica
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// 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 "GPBWireFormat.h"
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#import "GPBUtilities_PackagePrivate.h"
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enum {
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GPBWireFormatTagTypeBits = 3,
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GPBWireFormatTagTypeMask = 7 /* = (1 << GPBWireFormatTagTypeBits) - 1 */,
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};
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uint32_t GPBWireFormatMakeTag(uint32_t fieldNumber, GPBWireFormat wireType) {
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return (fieldNumber << GPBWireFormatTagTypeBits) | wireType;
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}
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GPBWireFormat GPBWireFormatGetTagWireType(uint32_t tag) {
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return (GPBWireFormat)(tag & GPBWireFormatTagTypeMask);
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}
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uint32_t GPBWireFormatGetTagFieldNumber(uint32_t tag) {
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return GPBLogicalRightShift32(tag, GPBWireFormatTagTypeBits);
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}
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BOOL GPBWireFormatIsValidTag(uint32_t tag) {
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uint32_t formatBits = (tag & GPBWireFormatTagTypeMask);
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// The valid GPBWireFormat* values are 0-5, anything else is not a valid tag.
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BOOL result = (formatBits <= 5);
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return result;
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}
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GPBWireFormat GPBWireFormatForType(GPBDataType type, BOOL isPacked) {
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if (isPacked) {
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return GPBWireFormatLengthDelimited;
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}
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static const GPBWireFormat format[GPBDataType_Count] = {
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GPBWireFormatVarint, // GPBDataTypeBool
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GPBWireFormatFixed32, // GPBDataTypeFixed32
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GPBWireFormatFixed32, // GPBDataTypeSFixed32
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GPBWireFormatFixed32, // GPBDataTypeFloat
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GPBWireFormatFixed64, // GPBDataTypeFixed64
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GPBWireFormatFixed64, // GPBDataTypeSFixed64
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GPBWireFormatFixed64, // GPBDataTypeDouble
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GPBWireFormatVarint, // GPBDataTypeInt32
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GPBWireFormatVarint, // GPBDataTypeInt64
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GPBWireFormatVarint, // GPBDataTypeSInt32
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GPBWireFormatVarint, // GPBDataTypeSInt64
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GPBWireFormatVarint, // GPBDataTypeUInt32
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GPBWireFormatVarint, // GPBDataTypeUInt64
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GPBWireFormatLengthDelimited, // GPBDataTypeBytes
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GPBWireFormatLengthDelimited, // GPBDataTypeString
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GPBWireFormatLengthDelimited, // GPBDataTypeMessage
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GPBWireFormatStartGroup, // GPBDataTypeGroup
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GPBWireFormatVarint // GPBDataTypeEnum
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};
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return format[type];
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}
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