Introduce a new type, PackExpansionType, to capture types that are
pack expansions, e.g. given
template<typename... Types> struct tuple;
template<typename... Types>
struct tuple_of_refs {
typedef tuple<Types&...> types;
};
the type of the "types" typedef is a PackExpansionType whose pattern
is Types&.
This commit introduces support for creating pack expansions for
template type arguments, as above, but not for any other kind of pack
expansion, nor for any form of instantiation.
llvm-svn: 122223
diff --git a/clang/lib/Parse/ParseTemplate.cpp b/clang/lib/Parse/ParseTemplate.cpp
index 333d72a..d38d059 100644
--- a/clang/lib/Parse/ParseTemplate.cpp
+++ b/clang/lib/Parse/ParseTemplate.cpp
@@ -1045,6 +1045,11 @@
Parser::ParseTemplateArgumentList(TemplateArgList &TemplateArgs) {
while (true) {
ParsedTemplateArgument Arg = ParseTemplateArgument();
+ if (Tok.is(tok::ellipsis)) {
+ SourceLocation EllipsisLoc = ConsumeToken();
+ Arg = Actions.ActOnPackExpansion(Arg, EllipsisLoc);
+ }
+
if (Arg.isInvalid()) {
SkipUntil(tok::comma, tok::greater, true, true);
return true;