PR11297: Provide a better diagnostic for code which contains a
reasonable-looking but ill-formed for-range statement of the form:
for (expression : expression)
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147006 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseStmt.cpp b/lib/Parse/ParseStmt.cpp
index 435bde3..13b3bda 100644
--- a/lib/Parse/ParseStmt.cpp
+++ b/lib/Parse/ParseStmt.cpp
@@ -1371,6 +1371,14 @@
return StmtError();
}
Collection = ParseExpression();
+ } else if (getLang().CPlusPlus0x && Tok.is(tok::colon) &&
+ !FirstPart.isInvalid()) {
+ // User tried to write the reasonable, but ill-formed, for-range-statement
+ // for (expr : expr) { ... }
+ Diag(Tok, diag::err_for_range_expected_decl)
+ << FirstPart.get()->getSourceRange();
+ SkipUntil(tok::r_paren, false, true);
+ SecondPartIsInvalid = true;
} else {
if (!Value.isInvalid()) {
Diag(Tok, diag::err_expected_semi_for);