When we see the a '[' in a postfix expression in Objective-C, perform

a simple, quick check to determine whether the expression starting
with '[' can only be an Objective-C message send. If so, don't parse
it as an array subscript expression. This improves recovery for, e.g.,

  [a method1]
  [a method2]

so that we now produce

  t.m:10:13: error: expected ';' after expression
  [a method]
            ^

instead of some mess about expecting ']'.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105221 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/Parse/ParseExpr.cpp b/lib/Parse/ParseExpr.cpp
index 8fb71c3ff6..093f9738ca 100644
--- a/lib/Parse/ParseExpr.cpp
+++ b/lib/Parse/ParseExpr.cpp
@@ -961,6 +961,9 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) {
     default:  // Not a postfix-expression suffix.
       return move(LHS);
     case tok::l_square: {  // postfix-expression: p-e '[' expression ']'
+      if (getLang().ObjC1 && isSimpleObjCMessageExpression())
+        return move(LHS);
+          
       Loc = ConsumeBracket();
       OwningExprResult Idx(ParseExpression());