https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106072
--- Comment #12 from Iain Sandoe <iains at gcc dot gnu.org> ---
hmm:
std::unique_ptr<AST::Type> type = nullptr;
if (lexer.peek_token ()->get_id () == COLON)
{
lexer.skip_token ();
// parse type, which is now required
type = parse_type ();
if (type == nullptr)
{
Error error (lexer.peek_token ()->get_locus (),
"failed to parse type in closure parameter");
add_error (std::move (error));
// skip somewhere?
return AST::ClosureParam::create_error ();
}
}
if lexer.peek_token ()->get_id () != COLON, then type *will be* nullptr.
(I don't know the rust impl. at all so cannot tell whether that's syntactically
valid).
