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* data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of

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arguments is really empty, not only equal to `[]'.
* src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
member.
(symbol_destructor_set): New.
* src/output.c (symbol_destructors_output): New.
* src/reader.h (brace_code_t, current_braced_code): New.
* src/scan-gram.l (BRACED_CODE): Use it to branch on...
(handle_dollar): Rename as...
(handle_action_dollar): this.
(handle_destructor_dollar): New.
* src/parse-gram.y (PERCENT_DESTRUCTOR): New.
(grammar_declaration): Use it.
* data/bison.simple (yystos): Is always defined.
(yydestructor): New.
* tests/actions.at (Destructors): New.
* tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
This commit is contained in:
Akim Demaille
2002-06-17 08:43:12 +00:00
parent dafdc66ff0
commit 9280d3ef89
15 changed files with 1222 additions and 848 deletions
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20
src/symtab.c
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@@ -48,6 +48,7 @@ symbol_new (const char *tag, location_t location)
res->tag = xstrdup (tag);
res->type_name = NULL;
res->destructor = NULL;
res->location = location;
res->number = NUMBER_UNDEFINED;
res->prec = 0;
@@ -114,6 +115,25 @@ symbol_type_set (symbol_t *symbol, location_t location, char *type_name)
}
/*-------------------------------------------------------------------.
| Set the DESTRUCTOR associated to SYMBOL. Does nothing if passed 0 |
| as DESTRUCTOR. |
`-------------------------------------------------------------------*/
void
symbol_destructor_set (symbol_t *symbol, location_t location, char *destructor)
{
if (destructor)
{
if (symbol->destructor)
complain_at (location,
_("destructor redeclaration for %s"),
symbol_tag_get (symbol));
symbol->destructor = destructor;
}
}
/*------------------------------------------------------------------.
| Set the PRECEDENCE associated to SYMBOL. Does nothing if invoked |
| with UNDEF_ASSOC as ASSOC. |