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