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1 // Protocol Buffers - Google's data interchange format | 1 // Protocol Buffers - Google's data interchange format |
2 // Copyright 2008 Google Inc. All rights reserved. | 2 // Copyright 2008 Google Inc. All rights reserved. |
3 // https://developers.google.com/protocol-buffers/ | 3 // https://developers.google.com/protocol-buffers/ |
4 // | 4 // |
5 // Redistribution and use in source and binary forms, with or without | 5 // Redistribution and use in source and binary forms, with or without |
6 // modification, are permitted provided that the following conditions are | 6 // modification, are permitted provided that the following conditions are |
7 // met: | 7 // met: |
8 // | 8 // |
9 // * Redistributions of source code must retain the above copyright | 9 // * Redistributions of source code must retain the above copyright |
10 // notice, this list of conditions and the following disclaimer. | 10 // notice, this list of conditions and the following disclaimer. |
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42 } | 42 } |
43 | 43 |
44 GPBWireFormat GPBWireFormatGetTagWireType(uint32_t tag) { | 44 GPBWireFormat GPBWireFormatGetTagWireType(uint32_t tag) { |
45 return (GPBWireFormat)(tag & GPBWireFormatTagTypeMask); | 45 return (GPBWireFormat)(tag & GPBWireFormatTagTypeMask); |
46 } | 46 } |
47 | 47 |
48 uint32_t GPBWireFormatGetTagFieldNumber(uint32_t tag) { | 48 uint32_t GPBWireFormatGetTagFieldNumber(uint32_t tag) { |
49 return GPBLogicalRightShift32(tag, GPBWireFormatTagTypeBits); | 49 return GPBLogicalRightShift32(tag, GPBWireFormatTagTypeBits); |
50 } | 50 } |
51 | 51 |
| 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); |
| 56 return result; |
| 57 } |
| 58 |
52 GPBWireFormat GPBWireFormatForType(GPBDataType type, BOOL isPacked) { | 59 GPBWireFormat GPBWireFormatForType(GPBDataType type, BOOL isPacked) { |
53 if (isPacked) { | 60 if (isPacked) { |
54 return GPBWireFormatLengthDelimited; | 61 return GPBWireFormatLengthDelimited; |
55 } | 62 } |
56 | 63 |
57 static const GPBWireFormat format[GPBDataType_Count] = { | 64 static const GPBWireFormat format[GPBDataType_Count] = { |
58 GPBWireFormatVarint, // GPBDataTypeBool | 65 GPBWireFormatVarint, // GPBDataTypeBool |
59 GPBWireFormatFixed32, // GPBDataTypeFixed32 | 66 GPBWireFormatFixed32, // GPBDataTypeFixed32 |
60 GPBWireFormatFixed32, // GPBDataTypeSFixed32 | 67 GPBWireFormatFixed32, // GPBDataTypeSFixed32 |
61 GPBWireFormatFixed32, // GPBDataTypeFloat | 68 GPBWireFormatFixed32, // GPBDataTypeFloat |
62 GPBWireFormatFixed64, // GPBDataTypeFixed64 | 69 GPBWireFormatFixed64, // GPBDataTypeFixed64 |
63 GPBWireFormatFixed64, // GPBDataTypeSFixed64 | 70 GPBWireFormatFixed64, // GPBDataTypeSFixed64 |
64 GPBWireFormatFixed64, // GPBDataTypeDouble | 71 GPBWireFormatFixed64, // GPBDataTypeDouble |
65 GPBWireFormatVarint, // GPBDataTypeInt32 | 72 GPBWireFormatVarint, // GPBDataTypeInt32 |
66 GPBWireFormatVarint, // GPBDataTypeInt64 | 73 GPBWireFormatVarint, // GPBDataTypeInt64 |
67 GPBWireFormatVarint, // GPBDataTypeSInt32 | 74 GPBWireFormatVarint, // GPBDataTypeSInt32 |
68 GPBWireFormatVarint, // GPBDataTypeSInt64 | 75 GPBWireFormatVarint, // GPBDataTypeSInt64 |
69 GPBWireFormatVarint, // GPBDataTypeUInt32 | 76 GPBWireFormatVarint, // GPBDataTypeUInt32 |
70 GPBWireFormatVarint, // GPBDataTypeUInt64 | 77 GPBWireFormatVarint, // GPBDataTypeUInt64 |
71 GPBWireFormatLengthDelimited, // GPBDataTypeBytes | 78 GPBWireFormatLengthDelimited, // GPBDataTypeBytes |
72 GPBWireFormatLengthDelimited, // GPBDataTypeString | 79 GPBWireFormatLengthDelimited, // GPBDataTypeString |
73 GPBWireFormatLengthDelimited, // GPBDataTypeMessage | 80 GPBWireFormatLengthDelimited, // GPBDataTypeMessage |
74 GPBWireFormatStartGroup, // GPBDataTypeGroup | 81 GPBWireFormatStartGroup, // GPBDataTypeGroup |
75 GPBWireFormatVarint // GPBDataTypeEnum | 82 GPBWireFormatVarint // GPBDataTypeEnum |
76 }; | 83 }; |
77 return format[type]; | 84 return format[type]; |
78 } | 85 } |
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