shithub: scc

Download patch

ref: a47da4831e6000e825decbeb876cfc604082d41f
parent: 051206f55c018f7f9b7660cb444c554f568df348
author: Roberto E. Vargas Caballero <[email protected]>
date: Sun Nov 16 01:13:26 EST 2014

Undefined structs at the end of the context

Types are never deleted, because it is expensive delete them, and usually
they have file scope. This approach has a problem with structures, because
it means that a structure type is always defined even when the original
type is no longer valid.

--- a/cc1/symbol.c

+++ b/cc1/symbol.c

@@ -40,6 +40,8 @@

 			break;

 		if (ns == NS_LABEL && !sym->s.isdefined)

 			error("label '%s' is not defined", sym->name);

+		if (ns == NS_TAG)

+			sym->type->defined = 0;

 		tbl->htab[hash(sym->name)] = sym->hash;

 		next = tbl->head = sym->next;

 		free(sym->name);