Sync changes from internal repo. (#98)
diff --git a/lib/src/protobuf/generated_message.dart b/lib/src/protobuf/generated_message.dart
index 2ca4611..2f655da 100644
--- a/lib/src/protobuf/generated_message.dart
+++ b/lib/src/protobuf/generated_message.dart
@@ -67,8 +67,12 @@
// TODO(antonm): move to getters.
int getTagNumber(String fieldName) => info_.tagNumber(fieldName);
- bool operator ==(other) =>
- other is GeneratedMessage ? _fieldSet._equals(other._fieldSet) : false;
+ bool operator ==(other) {
+ if (identical(this, other)) return true;
+ return other is GeneratedMessage
+ ? _fieldSet._equals(other._fieldSet)
+ : false;
+ }
/// Calculates a hash code based on the contents of the protobuf.
///
