[coroutines] Add parsing support for co_await expression, co_yield expression,
co_await modifier on range-based for loop, co_return statement.
llvm-svn: 250985
diff --git a/clang/lib/Parse/ParseExpr.cpp b/clang/lib/Parse/ParseExpr.cpp
index 5269047..ec1edbc 100644
--- a/clang/lib/Parse/ParseExpr.cpp
+++ b/clang/lib/Parse/ParseExpr.cpp
@@ -163,6 +163,8 @@
if (Tok.is(tok::kw_throw))
return ParseThrowExpression();
+ if (Tok.is(tok::kw_co_yield))
+ return ParseCoyieldExpression();
ExprResult LHS = ParseCastExpression(/*isUnaryExpression=*/false,
/*isAddressOfOperand=*/false,
@@ -522,6 +524,7 @@
/// postfix-expression
/// '++' unary-expression
/// '--' unary-expression
+/// [Coro] 'co_await' cast-expression
/// unary-operator cast-expression
/// 'sizeof' unary-expression
/// 'sizeof' '(' type-name ')'
@@ -1041,6 +1044,14 @@
return Res;
}
+ case tok::kw_co_await: { // unary-expression: 'co_await' cast-expression
+ SourceLocation SavedLoc = ConsumeToken();
+ Res = ParseCastExpression(false);
+ (void)SavedLoc;
+ // FIXME: Pass to Sema.
+ return Res;
+ }
+
case tok::kw___extension__:{//unary-expression:'__extension__' cast-expr [GNU]
// __extension__ silences extension warnings in the subexpression.
ExtensionRAIIObject O(Diags); // Use RAII to do this.