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restrict removal of arg only to comma operator,

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otherwise functions with a single variable may fail
This commit is contained in:
Holger Vogt
2020-04-04 14:13:35 +02:00
parent 4a3b193154
commit d3fcf2f43f
1 changed files with 4 additions and 1 deletions
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src/frontend/parse.c
+4 -1
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@@ -307,7 +307,10 @@ struct pnode *PP_mkfnode(const char *func, struct pnode *arg)
/* Give the user-defined functions a try. */ /* Give the user-defined functions a try. */
q = ft_substdef(func, arg); q = ft_substdef(func, arg);
if (q) { /* found */ if (q) { /* found */
free_pnode(arg); /* remove only the old comma operator pnode, no longer used */
if (arg->pn_op && arg->pn_op->op_num == PT_OP_COMMA) {
free_pnode(arg);
}
return q; return q;
} }
} }