objective-c: provide fixit hint for @autoreleasepool
and similar other keywords. // rdar://10723084
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159956 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseObjc.cpp b/lib/Parse/ParseObjc.cpp
index 35e4222..857040f 100644
--- a/lib/Parse/ParseObjc.cpp
+++ b/lib/Parse/ParseObjc.cpp
@@ -2094,8 +2094,23 @@
return ParsePostfixExpressionSuffix(ParseObjCProtocolExpression(AtLoc));
case tok::objc_selector:
return ParsePostfixExpressionSuffix(ParseObjCSelectorExpression(AtLoc));
- default:
- return ExprError(Diag(AtLoc, diag::err_unexpected_at));
+ default: {
+ const char *str = 0;
+ if (GetLookAheadToken(1).is(tok::l_brace)) {
+ char ch = Tok.getIdentifierInfo()->getNameStart()[0];
+ str =
+ ch == 't' ? "try"
+ : (ch == 'f' ? "finally"
+ : (ch == 'a' ? "autoreleasepool" : 0));
+ }
+ if (str) {
+ SourceLocation kwLoc = Tok.getLocation();
+ return ExprError(Diag(AtLoc, diag::err_unexpected_at) <<
+ FixItHint::CreateReplacement(kwLoc, str));
+ }
+ else
+ return ExprError(Diag(AtLoc, diag::err_unexpected_at));
+ }
}
}
}