class.c (make_class_data): The superclass of an interface should be null, not class Object.

1999-02-05  Andrew Haley  <aph@cygnus.com>
        * class.c (make_class_data): The superclass of an interface should
        be null, not class Object.
        * lex.c (java_lex): Sign extend hex literals.

From-SVN: r25039

gcc/java/ChangeLog

+1999-02-05  Andrew Haley  <aph@cygnus.com>
+
+	* class.c (make_class_data): The superclass of an interface should
+	be null, not class Object.
+
+	* lex.c (java_lex): Sign extend hex literals.
+
 1999-02-04  Andrew Haley  <aph@cygnus.com>
 
 	* class.c (build_utf8_ref): Output signatures using '.' as a

gcc/java/class.c

@@ -1135,7 +1135,8 @@ make_class_data (type)
   PUSH_FIELD_VALUE (cons, "accflags",
 		    build_int_2 (get_access_flags_from_decl (type_decl), 0));
 
-  PUSH_FIELD_VALUE (cons, "superclass", super);
+  PUSH_FIELD_VALUE (cons, "superclass", 
+		    CLASS_INTERFACE (type_decl) ? null_pointer_node : super);
   PUSH_FIELD_VALUE (cons, "constants", constant_pool_constructor);
   PUSH_FIELD_VALUE (cons, "methods",
 		    build1 (ADDR_EXPR, method_ptr_type_node, methods_decl));

gcc/java/lex.c

@@ -850,11 +850,13 @@ java_lex (java_lval)
 	  /* 2147483648 is valid if operand of a '-'. Otherwise,
 	     2147483647 is the biggest `int' literal that can be
 	     expressed using a 10 radix. For other radixes, everything
-	     that fits within 32 bits is OK. */
+	     that fits within 32 bits is OK.  As all literals are
+	     signed, we sign extend here. */
 	  int hb = (low >> 31) & 0x1;
 	  if (overflow || high || (hb && low & 0x7fffffff && radix == 10) ||
 	      (hb && !(low & 0x7fffffff) && !ctxp->minus_seen && radix == 10))
 	    JAVA_INTEGRAL_RANGE_ERROR ("Numeric overflow for `int' literal");
+	  high = -hb;
 	}
       ctxp->minus_seen = 0;
       SET_LVAL_NODE_TYPE (build_int_2 (low, high),