86 lines
3.6 KiB
Objective-C
86 lines
3.6 KiB
Objective-C
// 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];
|
|
}
|