[PATCH] c++: Failure to delay noexcept parsing with ptr-operator [PR100752]
Thu Jun 10 21:19:28 GMT 2021
On Thu, Jun 10, 2021 at 03:09:29PM -0400, Jason Merrill wrote:
> On 6/8/21 8:25 PM, Marek Polacek wrote:
> > We weren't passing 'flags' to the recursive call to cp_parser_declarator
> > in the ptr-operator case and as an effect, delayed parsing of noexcept
> > didn't work as advertised. The following change passes more than just
> > CP_PARSER_FLAGS_DELAY_NOEXCEPT but that doesn't seem to break anything.
> > I'm not passing member_p because I don't need it and because it breaks
> > a few tests.
> > Bootstrapped/regtested on x86_64-pc-linux-gnu, ok for trunk/branches?
> > PR c++/100752
> > gcc/cp/ChangeLog:
> > * parser.c (cp_parser_declarator): Pass flags down to
> > cp_parser_declarator.
> > gcc/testsuite/ChangeLog:
> > * g++.dg/cpp0x/noexcept69.C: New test.
> > ---
> > gcc/cp/parser.c | 3 +--
> > gcc/testsuite/g++.dg/cpp0x/noexcept69.C | 12 ++++++++++++
> > 2 files changed, 13 insertions(+), 2 deletions(-)
> > create mode 100644 gcc/testsuite/g++.dg/cpp0x/noexcept69.C
> > diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c
> > index d59a829d0b9..5930990ec1c 100644
> > --- a/gcc/cp/parser.c
> > +++ b/gcc/cp/parser.c
> > @@ -22066,8 +22066,7 @@ cp_parser_declarator (cp_parser* parser,
> > cp_parser_parse_tentatively (parser);
> > /* Parse the dependent declarator. */
> > - declarator = cp_parser_declarator (parser, dcl_kind,
> > - CP_PARSER_FLAGS_NONE,
> > + declarator = cp_parser_declarator (parser, dcl_kind, flags,
> > /*ctor_dtor_or_conv_p=*/NULL,
> > /*parenthesized_p=*/NULL,
> > /*member_p=*/false,
> Should the other parameters also be passed down? I'd think definitely
> member_p and static_p, not sure about ctor_dtor_or_conv_p and
Hmm, as I mentioned in the patch description, I tried, but passing member_p
broke a few tests and since it's not needed for this fix I gave up
investigating why. I could look into it if you're curious :).
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