| Index: lib/src/utils.dart | 
| diff --git a/lib/src/utils.dart b/lib/src/utils.dart | 
| index 4dcee1988000e1a0d77be60a35765881625bd753..79ce4486826d95ec1436bd461e1b384142d05832 100644 | 
| --- a/lib/src/utils.dart | 
| +++ b/lib/src/utils.dart | 
| @@ -8,7 +8,7 @@ import 'package:source_span/source_span.dart'; | 
| /// | 
| /// [name] should describe the type of thing being parsed, and [value] should be | 
| /// its actual value. | 
| -wrapFormatException(String name, String value, body()) { | 
| +/*=T*/ wrapFormatException/*<T>*/(String name, String value, /*=T*/ body()) { | 
| try { | 
| return body(); | 
| } on SourceSpanFormatException catch (error) { | 
|  |