shithub: scc

Info  •  Files  •  Log  •  Branches

Print only one error for every non declared variable

After the change in the symbol table, flaging the symbol as declared
is not enough, we have to install it in the symbol table.

--- a/cc1/expr.c

+++ b/cc1/expr.c

@@ -508,6 +508,7 @@

 primary(void)

 {

 	Node *np;

+	Symbol *sym;

 	switch (yytoken) {

 	case CONSTANT:

@@ -515,13 +516,14 @@

 		next();

 		break;

 	case IDEN:

-		if ((yylval.sym->flags & ISDECLARED) == 0) {

-			yylval.sym->type = inttype;

-			yylval.sym->flags |= ISDECLARED;

-			error("'%s' undeclared", yytext);

+		sym = yylval.sym;

+		if ((sym->flags & ISDECLARED) == 0) {

+			errorp("'%s' undeclared", yytext);

+			sym->type = inttype;

+			install(sym->ns, yylval.sym);

 		}

-		yylval.sym->flags |= ISUSED;

-		np = varnode(yylval.sym);

+		sym->flags |= ISUSED;

+		np = varnode(sym);

 		next();

 		break;

 	default: