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Handle null returns from function_item

This commit is contained in:
steve 1999-09-30 00:48:04 +00:00
parent 42006ec5f1
commit 076cecb6cd
1 changed files with 18 additions and 6 deletions
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24
parse.y
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@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#if !defined(WINNT) #if !defined(WINNT)
#ident "$Id: parse.y,v 1.70 1999/09/29 22:56:31 steve Exp $" #ident "$Id: parse.y,v 1.71 1999/09/30 00:48:04 steve Exp $"
#endif #endif
# include "parse_misc.h" # include "parse_misc.h"
@ -692,7 +692,9 @@ func_body
: function_item_list statement : function_item_list statement
{ $$ = new PFunction($1, $2); } { $$ = new PFunction($1, $2); }
| function_item_list | function_item_list
{ yyerror(@1, "error: function body has no statement."); } { yyerror(@1, "error: function body has no statement.");
$$ = new PFunction($1, 0);
}
; ;
function_item function_item
@ -710,14 +712,24 @@ function_item
{ $$ = 0; } { $$ = 0; }
; ;
/* A function_item_list only lists the input/output/inout
declarations. The integer and reg declarations are handled in
place, so are not listed. The list builder needs to account for
the possibility that the various parts may be NULL. */
function_item_list function_item_list
: function_item : function_item
{ $$ = $1; } { $$ = $1; }
| function_item_list function_item | function_item_list function_item
{ svector<PWire*>*tmp = new svector<PWire*>(*$1, *$2); { if ($1 && $2) {
delete $1; svector<PWire*>*tmp = new svector<PWire*>(*$1, *$2);
delete $2; delete $1;
$$ = tmp; delete $2;
$$ = tmp;
} else if ($1) {
$$ = $1;
} else {
$$ = $2;
}
} }
; ;