Index: third_party/protobuf/objectivec/GPBWireFormat.m |
diff --git a/third_party/protobuf/objectivec/GPBWireFormat.m b/third_party/protobuf/objectivec/GPBWireFormat.m |
index 193235d6ce41e502e293eb36e4c6e85f0c36360d..860a339f9a2c9c9e31dc53fad97011d83c682213 100644 |
--- a/third_party/protobuf/objectivec/GPBWireFormat.m |
+++ b/third_party/protobuf/objectivec/GPBWireFormat.m |
@@ -49,6 +49,13 @@ 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; |