===================================================================
@@ -642,13 +642,30 @@ c_parser_next_token_starts_declspecs (c_
return c_token_starts_declspecs (token);
}
-/* Return true if the next token from PARSER can start declaration
+/* Return true if the next tokens from PARSER can start declaration
specifiers or a static assertion, false otherwise. */
static inline bool
-c_parser_next_token_starts_declaration (c_parser *parser)
+c_parser_next_tokens_start_declaration (c_parser *parser)
{
c_token *token = c_parser_peek_token (parser);
- return c_token_starts_declaration (token);
+
+ /* Labels do not start declarations. */
+ if (token->type == CPP_NAME
+ && c_parser_peek_2nd_token (parser)->type == CPP_COLON)
+ return false;
+
+ if (c_token_starts_declaration (token))
+ return true;
+
+ /* Try a bit harder to detect an unknown typename. */
+ if (token->type == CPP_NAME
+ && token->id_kind == C_ID_ID
+ && (c_parser_peek_2nd_token (parser)->type == CPP_NAME
+ || c_parser_peek_2nd_token (parser)->type == CPP_MULT)
+ && !lookup_name (token->value))
+ return true;
+
+ return false;
}
/* Return a pointer to the next-but-one token from PARSER, reading it
@@ -1365,6 +1382,24 @@ c_parser_declaration_or_fndef (c_parser
return;
}
specs = build_null_declspecs ();
+
+ /* Try to detect an unknown type name when we have "A B" or "A *B". */
+ if (c_parser_peek_token (parser)->type == CPP_NAME
+ && c_parser_peek_token (parser)->id_kind == C_ID_ID
+ && (c_parser_peek_2nd_token (parser)->type == CPP_NAME
+ || c_parser_peek_2nd_token (parser)->type == CPP_MULT)
+ && (!nested || !lookup_name (c_parser_peek_token (parser)->value)))
+ {
+ error_at (here, "unknown type name %qE",
+ c_parser_peek_token (parser)->value);
+
+ /* Parse declspecs normally to get a correct pointer type, but avoid
+ a further "fails to be a type name" error. */
+ c_parser_peek_token (parser)->type = CPP_KEYWORD;
+ c_parser_peek_token (parser)->keyword = RID_VOID;
+ c_parser_peek_token (parser)->value = error_mark_node;
+ }
+
c_parser_declspecs (parser, specs, true, true, start_attr_ok);
if (parser->error)
{
@@ -3927,7 +3962,7 @@ c_parser_compound_statement_nostart (c_p
c_parser_label (parser);
}
else if (!last_label
- && c_parser_next_token_starts_declaration (parser))
+ && c_parser_next_tokens_start_declaration (parser))
{
last_label = false;
mark_valid_location_for_stdc_pragma (false);
@@ -4089,9 +4124,7 @@ c_parser_label (c_parser *parser)
}
if (label)
{
- if (c_parser_next_token_starts_declaration (parser)
- && !(c_parser_next_token_is (parser, CPP_NAME)
- && c_parser_peek_2nd_token (parser)->type == CPP_COLON))
+ if (c_parser_next_tokens_start_declaration (parser))
{
error_at (c_parser_peek_token (parser)->location,
"a label can only be part of a statement and "
@@ -4685,7 +4718,7 @@ c_parser_for_statement (c_parser *parser
c_parser_consume_token (parser);
c_finish_expr_stmt (loc, NULL_TREE);
}
- else if (c_parser_next_token_starts_declaration (parser))
+ else if (c_parser_next_tokens_start_declaration (parser))
{
parser->objc_could_be_foreach_context = true;
c_parser_declaration_or_fndef (parser, true, true, true, true, true,
@@ -9056,7 +9089,7 @@ c_parser_omp_for_loop (location_t loc,
goto pop_scopes;
/* Parse the initialization declaration or expression. */
- if (c_parser_next_token_starts_declaration (parser))
+ if (c_parser_next_tokens_start_declaration (parser))
{
if (i > 0)
VEC_safe_push (tree, gc, for_block, c_begin_compound_stmt (true));