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Diffstat (limited to 'vala/valaparser.vala')
-rw-r--r--vala/valaparser.vala140
1 files changed, 93 insertions, 47 deletions
diff --git a/vala/valaparser.vala b/vala/valaparser.vala
index 216cd0a7d..74cf0f2f4 100644
--- a/vala/valaparser.vala
+++ b/vala/valaparser.vala
@@ -1584,6 +1584,81 @@ public class Vala.Parser : CodeVisitor {
return expr;
}
+ Statement? parse_statement (TokenType type) throws ParseError {
+ Statement? stmt = null;
+ var begin = get_location ();
+ try {
+ switch (type) {
+ case TokenType.IF:
+ stmt = parse_if_statement ();
+ break;
+ case TokenType.SWITCH:
+ stmt = parse_switch_statement ();
+ break;
+ case TokenType.WHILE:
+ stmt = parse_while_statement ();
+ break;
+ case TokenType.DO:
+ stmt = parse_do_statement ();
+ break;
+ case TokenType.FOR:
+ stmt = parse_for_statement ();
+ break;
+ case TokenType.FOREACH:
+ stmt = parse_foreach_statement ();
+ break;
+ case TokenType.BREAK:
+ stmt = parse_break_statement ();
+ break;
+ case TokenType.CONTINUE:
+ stmt = parse_continue_statement ();
+ break;
+ case TokenType.RETURN:
+ stmt = parse_return_statement ();
+ break;
+ case TokenType.YIELD:
+ stmt = parse_yield_statement ();
+ break;
+ case TokenType.THROW:
+ stmt = parse_throw_statement ();
+ break;
+ case TokenType.TRY:
+ stmt = parse_try_statement ();
+ break;
+ case TokenType.LOCK:
+ stmt = parse_lock_statement ();
+ break;
+ case TokenType.UNLOCK:
+ stmt = parse_unlock_statement ();
+ break;
+ case TokenType.DELETE:
+ stmt = parse_delete_statement ();
+ break;
+ case TokenType.WITH:
+ stmt = parse_with_statement ();
+ break;
+ default:
+ assert_not_reached ();
+ }
+ } catch (ParseError e) {
+ var e_begin = get_location ();
+ string token = ((EnumClass) typeof (TokenType).class_ref ()).get_value (type).value_nick;
+ try {
+ rollback (begin);
+ stmt = parse_expression_statement ();
+ Report.warning (get_src (begin), "`%s' is a syntax keyword, replace with `@%s'".printf (token, token));
+ } catch (ParseError e2) {
+ var e2_begin = get_location ();
+ rollback (e_begin);
+ next ();
+ Report.error (get_src (e_begin), "Possible `%s-statement' syntax error, %s".printf (token, e.message));
+ rollback (e2_begin);
+ throw e2;
+ }
+ }
+ return stmt;
+ }
+
void parse_statements (Block block) throws ParseError {
while (current () != TokenType.CLOSE_BRACE
&& current () != TokenType.CASE
@@ -1602,52 +1677,22 @@ public class Vala.Parser : CodeVisitor {
stmt = parse_empty_statement ();
break;
case TokenType.IF:
- stmt = parse_if_statement ();
- break;
case TokenType.SWITCH:
- stmt = parse_switch_statement ();
- break;
case TokenType.WHILE:
- stmt = parse_while_statement ();
- break;
case TokenType.DO:
- stmt = parse_do_statement ();
- break;
case TokenType.FOR:
- stmt = parse_for_statement ();
- break;
case TokenType.FOREACH:
- stmt = parse_foreach_statement ();
- break;
case TokenType.BREAK:
- stmt = parse_break_statement ();
- break;
case TokenType.CONTINUE:
- stmt = parse_continue_statement ();
- break;
case TokenType.RETURN:
- stmt = parse_return_statement ();
- break;
case TokenType.YIELD:
- stmt = parse_yield_statement ();
- break;
case TokenType.THROW:
- stmt = parse_throw_statement ();
- break;
case TokenType.TRY:
- stmt = parse_try_statement ();
- break;
case TokenType.LOCK:
- stmt = parse_lock_statement ();
- break;
case TokenType.UNLOCK:
- stmt = parse_unlock_statement ();
- break;
case TokenType.DELETE:
- stmt = parse_delete_statement ();
- break;
case TokenType.WITH:
- stmt = parse_with_statement ();
+ stmt = parse_statement (current ());
break;
case TokenType.VAR:
is_decl = true;
@@ -1821,22 +1866,23 @@ public class Vala.Parser : CodeVisitor {
Report.warning (get_current_src (), "%s-statement without body".printf (statement_name));
}
return parse_empty_statement ();
- case TokenType.IF: return parse_if_statement ();
- case TokenType.SWITCH: return parse_switch_statement ();
- case TokenType.WHILE: return parse_while_statement ();
- case TokenType.DO: return parse_do_statement ();
- case TokenType.FOR: return parse_for_statement ();
- case TokenType.FOREACH: return parse_foreach_statement ();
- case TokenType.BREAK: return parse_break_statement ();
- case TokenType.CONTINUE: return parse_continue_statement ();
- case TokenType.RETURN: return parse_return_statement ();
- case TokenType.YIELD: return parse_yield_statement ();
- case TokenType.THROW: return parse_throw_statement ();
- case TokenType.TRY: return parse_try_statement ();
- case TokenType.LOCK: return parse_lock_statement ();
- case TokenType.UNLOCK: return parse_unlock_statement ();
- case TokenType.DELETE: return parse_delete_statement ();
- case TokenType.WITH: return parse_with_statement ();
+ case TokenType.IF:
+ case TokenType.SWITCH:
+ case TokenType.WHILE:
+ case TokenType.DO:
+ case TokenType.FOR:
+ case TokenType.FOREACH:
+ case TokenType.BREAK:
+ case TokenType.CONTINUE:
+ case TokenType.RETURN:
+ case TokenType.YIELD:
+ case TokenType.THROW:
+ case TokenType.TRY:
+ case TokenType.LOCK:
+ case TokenType.UNLOCK:
+ case TokenType.DELETE:
+ case TokenType.WITH:
+ return parse_statement (current ());
case TokenType.VAR:
case TokenType.CONST:
throw new ParseError.SYNTAX ("embedded statement cannot be declaration ");