1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc. All rights reserved.
3 // https://developers.google.com/protocol-buffers/
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31 #import "GPBWireFormat.h"
33 #import "GPBUtilities_PackagePrivate.h"
36 GPBWireFormatTagTypeBits = 3,
37 GPBWireFormatTagTypeMask = 7 /* = (1 << GPBWireFormatTagTypeBits) - 1 */,
40 uint32_t GPBWireFormatMakeTag(uint32_t fieldNumber, GPBWireFormat wireType) {
41 return (fieldNumber << GPBWireFormatTagTypeBits) | wireType;
44 GPBWireFormat GPBWireFormatGetTagWireType(uint32_t tag) {
45 return (GPBWireFormat)(tag & GPBWireFormatTagTypeMask);
48 uint32_t GPBWireFormatGetTagFieldNumber(uint32_t tag) {
49 return GPBLogicalRightShift32(tag, GPBWireFormatTagTypeBits);
52 BOOL GPBWireFormatIsValidTag(uint32_t tag) {
53 uint32_t formatBits = (tag & GPBWireFormatTagTypeMask);
54 // The valid GPBWireFormat* values are 0-5, anything else is not a valid tag.
55 BOOL result = (formatBits <= 5);
59 GPBWireFormat GPBWireFormatForType(GPBDataType type, BOOL isPacked) {
61 return GPBWireFormatLengthDelimited;
64 static const GPBWireFormat format[GPBDataType_Count] = {
65 GPBWireFormatVarint, // GPBDataTypeBool
66 GPBWireFormatFixed32, // GPBDataTypeFixed32
67 GPBWireFormatFixed32, // GPBDataTypeSFixed32
68 GPBWireFormatFixed32, // GPBDataTypeFloat
69 GPBWireFormatFixed64, // GPBDataTypeFixed64
70 GPBWireFormatFixed64, // GPBDataTypeSFixed64
71 GPBWireFormatFixed64, // GPBDataTypeDouble
72 GPBWireFormatVarint, // GPBDataTypeInt32
73 GPBWireFormatVarint, // GPBDataTypeInt64
74 GPBWireFormatVarint, // GPBDataTypeSInt32
75 GPBWireFormatVarint, // GPBDataTypeSInt64
76 GPBWireFormatVarint, // GPBDataTypeUInt32
77 GPBWireFormatVarint, // GPBDataTypeUInt64
78 GPBWireFormatLengthDelimited, // GPBDataTypeBytes
79 GPBWireFormatLengthDelimited, // GPBDataTypeString
80 GPBWireFormatLengthDelimited, // GPBDataTypeMessage
81 GPBWireFormatStartGroup, // GPBDataTypeGroup
82 GPBWireFormatVarint // GPBDataTypeEnum