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diagnostics: better location for type redeclarations

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From

    foo.y:1.7-11: error: %type redeclaration for bar
        1 | %type <foo> bar bar
          |       ^~~~~
    foo.y:1.7-11: note: previous declaration
        1 | %type <foo> bar bar
          |       ^~~~~

to

    foo.y:1.17-19: error: %type redeclaration for bar
        1 | %type <foo> bar bar
          |                 ^~~
    foo.y:1.13-15: note: previous declaration
        1 | %type <foo> bar bar
          |             ^~~

* src/symlist.h, src/symlist.c (symbol_list_type_set): There's no need
for the tag's location, use that of the symbol.
* src/parse-gram.y: Adjust.
* tests/input.at: Adjust.
This commit is contained in:
Akim Demaille
2020-08-01 08:51:24 +02:00
parent f47a1bd622
commit cb65553449
5 changed files with 21 additions and 14 deletions
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8
NEWS
View File

@@ -2,8 +2,16 @@ GNU Bison NEWS
* Noteworthy changes in release ?.? (????-??-??) [?]
** Bug fixes
Fixed a crash when a token alias contains a NUL byte.
** Changes
Improvements and fixes in the documentation.
More precise location about symbol type redefinitions.
* Noteworthy changes in release 3.7 (2020-07-23) [stable]

12
src/parse-gram.y
View File

@@ -532,11 +532,11 @@ token_decls:
}
| TAG token_decl.1[syms]
{
$$ = symbol_list_type_set ($syms, $TAG, @TAG);
$$ = symbol_list_type_set ($syms, $TAG);
}
| token_decls TAG token_decl.1[syms]
{
$$ = symbol_list_append ($1, symbol_list_type_set ($syms, $TAG, @TAG));
$$ = symbol_list_append ($1, symbol_list_type_set ($syms, $TAG));
}
;
@@ -592,11 +592,11 @@ token_decls_for_prec:
}
| TAG token_decl_for_prec.1[syms]
{
$$ = symbol_list_type_set ($syms, $TAG, @TAG);
$$ = symbol_list_type_set ($syms, $TAG);
}
| token_decls_for_prec TAG token_decl_for_prec.1[syms]
{
$$ = symbol_list_append ($1, symbol_list_type_set ($syms, $TAG, @TAG));
$$ = symbol_list_append ($1, symbol_list_type_set ($syms, $TAG));
}
;
@@ -632,11 +632,11 @@ symbol_decls:
}
| TAG symbol_decl.1[syms]
{
$$ = symbol_list_type_set ($syms, $TAG, @TAG);
$$ = symbol_list_type_set ($syms, $TAG);
}
| symbol_decls TAG symbol_decl.1[syms]
{
$$ = symbol_list_append ($1, symbol_list_type_set ($syms, $TAG, @TAG));
$$ = symbol_list_append ($1, symbol_list_type_set ($syms, $TAG));
}
;

4
src/symlist.c
View File

@@ -83,10 +83,10 @@ symbol_list_type_new (uniqstr type_name, location loc)
symbol_list *
symbol_list_type_set (symbol_list *syms, uniqstr type_name, location loc)
symbol_list_type_set (symbol_list *syms, uniqstr type_name)
{
for (symbol_list *l = syms; l; l = l->next)
symbol_type_set (l->content.sym, type_name, loc);
symbol_type_set (l->content.sym, type_name, l->sym_loc);
return syms;
}

3
src/symlist.h
View File

@@ -110,8 +110,7 @@ symbol_list *symbol_list_type_new (uniqstr type_name, location loc);
/** Assign the type \c type_name to all the members of \c syms.
** \returns \c syms */
symbol_list *symbol_list_type_set (symbol_list *syms,
uniqstr type_name, location loc);
symbol_list *symbol_list_type_set (symbol_list *syms, uniqstr type_name);
/** Print this list.

8
tests/input.at
View File

@@ -1252,12 +1252,12 @@ AT_TEST([[%token foo "foo"
%%
exp: foo;
]],
[[input.y:3.7-11: error: %type redeclaration for foo
[[input.y:3.13-15: error: %type redeclaration for foo
3 | %type <baz> foo
| ^~~~~
input.y:2.7-11: note: previous declaration
| ^~~
input.y:2.13-17: note: previous declaration
2 | %type <bar> "foo"
| ^~~~~
| ^~~~~
]])
AT_TEST([[%token foo "foo"