Fix some C++ error recovery problems in init declarator parsing

that I noticed working on other things.

Instead of emitting:

t2.cc:1:8: error: use of undeclared identifier 'g'
int x(*g);
       ^
t2.cc:1:10: error: expected ')'
int x(*g);
         ^
t2.cc:1:6: note: to match this '('
int x(*g);
     ^

We now only emit:

t2.cc:1:7: warning: type specifier missing, defaults to 'int'
int x(*g);
      ^


Note that the example in SemaCXX/nested-name-spec.cpp:f4 is still
not great, we now produce both of:

void f4(undef::C); // expected-error {{use of undeclared identifier 'undef'}} \
                      expected-error {{variable has incomplete type 'void'}}

The second diagnostic should be silenced by something getting marked invalid.
I don't plan to fix this though.

llvm-svn: 68919

1 files changed, 3 insertions, 6 deletions

diff --git a/clang/lib/Parse/ParseDecl.cpp b/clang/lib/Parse/ParseDecl.cpp
index 5b8963f892c..da3ee1df7c5 100644
--- a/clang/lib/Parse/ParseDecl.cpp
+++ b/clang/lib/Parse/ParseDecl.cpp
@@ -380,15 +380,12 @@ ParseInitDeclaratorListAfterFirstDeclarator(Declarator &D) {
       ExprVector Exprs(Actions);
       CommaLocsTy CommaLocs;
 
-      bool InvalidExpr = false;
       if (ParseExpressionList(Exprs, CommaLocs)) {
         SkipUntil(tok::r_paren);
-        InvalidExpr = true;
-      }
-      // Match the ')'.
-      SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc);
+      } else {
+        // Match the ')'.
+        SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc);
 
-      if (!InvalidExpr) {
         assert(!Exprs.empty() && Exprs.size()-1 == CommaLocs.size() &&
                "Unexpected number of commas!");
         Actions.AddCXXDirectInitializerToDecl(ThisDecl, LParenLoc,