[C++] EOF has a location

[Rainer Orth]

Hi Jakub,

> On Fri, May 08, 2020 at 11:48:34AM -0400, Nathan Sidwell wrote:
>> 2020-05-08  Nathan Sidwell  <nathan@acm.org>
>> 
>> 	gcc/cp/
>> 	* parser.c (cp_lexer_set_source_position_from_token): EOF has a
>> 	location too.
>
> This change:
>
>> --- c/gcc/cp/parser.c
>> +++ w/gcc/cp/parser.c
>> @@ -895,10 +895,7 @@ cp_lexer_get_preprocessor_token (cp_lexer *lexer,
>> cp_token *token)
>>  static inline void
>>  cp_lexer_set_source_position_from_token (cp_token *token)
>>  {
>> -  if (token->type != CPP_EOF)
>> -    {
>> -      input_location = token->location;
>> -    }
>> +  input_location = token->location;
>>  }
>>  
>>  /* Update the globals input_location and the input file stack from LEXER.  */
>
> seems to have regressed:
> +FAIL: obj-c++.dg/syntax-error-10.mm -fgnu-runtime  (test for errors, line 1)
> +FAIL: obj-c++.dg/syntax-error-10.mm -fgnu-runtime (test for excess errors)
> +FAIL: obj-c++.dg/syntax-error-8.mm -fgnu-runtime  (test for errors, line 1)
> +FAIL: obj-c++.dg/syntax-error-8.mm -fgnu-runtime (test for excess errors)
> +FAIL: obj-c++.dg/syntax-error-9.mm -fgnu-runtime  (test for errors, line 2)
> +FAIL: obj-c++.dg/syntax-error-9.mm -fgnu-runtime (test for excess errors)
> +FAIL: obj-c++.dg/property/property-neg-6.mm -fgnu-runtime (test for
> errors, line 8)
> +FAIL: obj-c++.dg/property/property-neg-6.mm -fgnu-runtime (test for excess
> errors)
>
> E.g. on syntax-error-8.mm, cc1objplus used to emit:
> syntax-error-8.mm:1:12: error: expected ‘@end’ at end of input
>     1 | @interface A /* { dg-error "expected ..end." } */
>       |            ^
> and now it emits:
> syntax-error-8.mm:1: error: expected ‘@end’ at end of input
>     1 | @interface A /* { dg-error "expected ..end." } */
>       | 
> instead (no column at all).

this is PR objc++/95013.  Nathan is working on it already.

	Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University