shithub: mc

Info  •  Files  •  Log  •  Branches

Error if we duplicate struct members.

--- a/parse/type.c

+++ b/parse/type.c

@@ -291,10 +291,23 @@

 Type *mktystruct(Srcloc loc, Node **decls, size_t ndecls)

 {

 	Type *t;

+	Htab *ht;

+	int i;

+	char *s;

 	t = mktype(loc, Tystruct);

 	t->nsub = 0;

 	t->nmemb = ndecls;

+

+	ht = mkht(strhash, streq);

+	for (i = 0; i < ndecls; i++) {

+		s = declname(decls[i]);

+		if (hthas(ht, s))

+			fatal(decls[i], "duplicate struct member %s\n", declname(decls[i]));

+		htput(ht, s, s);

+	}

+	htfree(ht);

+

 	t->sdecls = memdup(decls, ndecls * sizeof(Node *));

 	return t;

 }