Implement a hack intended to allow Clang to parse libstdc++ 4.5's
headers, which use C++0x generalized initializer lists. Per PR7069, it
appears that the only use is as the return type of a function, so this
commit enables this extension just in that narrow case. If it's enough
for libstdc++ 4.5, or if it can be trivially extended to work with
libstdc++ 4.5, we'll keep it. Otherwise, or if this breaks anything,
we'll revert and wait for the real feature.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127507 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseStmt.cpp b/lib/Parse/ParseStmt.cpp
index d1376ac..d7e9070 100644
--- a/lib/Parse/ParseStmt.cpp
+++ b/lib/Parse/ParseStmt.cpp
@@ -1267,7 +1267,16 @@
return StmtError();
}
- R = ParseExpression();
+ // FIXME: This is a hack to allow something like C++0x's generalized
+ // initializer lists, but only enough of this feature to allow Clang to
+ // parse libstdc++ 4.5's headers.
+ if (Tok.is(tok::l_brace) && getLang().CPlusPlus) {
+ R = ParseInitializer();
+ if (R.isUsable() && !getLang().CPlusPlus0x)
+ Diag(R.get()->getLocStart(), diag::ext_generalized_initializer_lists)
+ << R.get()->getSourceRange();
+ } else
+ R = ParseExpression();
if (R.isInvalid()) { // Skip to the semicolon, but don't consume it.
SkipUntil(tok::semi, false, true);
return StmtError();