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* data/Makefile.am: Update copyright date.

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* data/push.c (yypull_parse): Report memory exhaustion and return 2 if
yypstate_new returns NULL.
(yypstate_new): Return NULL if malloc does.
* src/reader.c (packgram): Move translation of rule actions from the
beginning of packgram to...
(check_and_convert_grammar): ... here right before packgram is invoked
so it's easier to write more complete comments, and remove redundant
code.
This commit is contained in:
Joel E. Denny
2007-02-11 07:34:26 +00:00
parent e785ccf715
commit 574add857a
4 changed files with 37 additions and 16 deletions
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28
src/reader.c
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@@ -444,20 +444,6 @@ packgram (void)
rules = xnmalloc (nrules, sizeof *rules);
/* Before invoking grammar_rule_check on any rule, make sure all actions have
already been scanned in order to set `used' flags. Otherwise, checking
that a midrule's $$ should be set will not always work properly because
the check must forward-reference the midrule's parent rule. For the same
reason, all the `used' flags must be set before checking whether to remove
`$' from any midrule symbol name. */
while (p)
{
code_props_translate_code (&p->action_props);
if (p)
p = p->next;
}
p = grammar;
while (p)
{
int rule_length = 0;
@@ -643,6 +629,20 @@ check_and_convert_grammar (void)
token symbols into FDEFINES if requested. */
symbols_pack ();
/* Scan rule actions after invoking symbol_check_alias_consistency (in
symbols_pack above) so that token types are set correctly before the rule
action type checking.
Before invoking grammar_rule_check (in packgram below) on any rule, make
sure all actions have already been scanned in order to set `used' flags.
Otherwise, checking that a midrule's $$ should be set will not always work
properly because the check must forward-reference the midrule's parent
rule. For the same reason, all the `used' flags must be set before
checking whether to remove `$' from any midrule symbol name (also in
packgram). */
for (symbol_list *sym = grammar; sym; sym = sym->next)
code_props_translate_code (&sym->action_props);
/* Convert the grammar into the format described in gram.h. */
packgram ();