c++: Failure to delay noexcept parsing with ptr-operator [PR100752]

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 now also passing member_p and static_p, as a consequence, two tests
needed small tweaks.

	PR c++/100752

gcc/cp/ChangeLog:

	* parser.c (cp_parser_declarator): Pass flags down to
	cp_parser_declarator.  Also pass static_p/member_p.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/noexcept69.C: New test.
	* g++.dg/parse/saved1.C: Adjust dg-error.
	* g++.dg/template/crash50.C: Likewise.
This commit is contained in:
Marek Polacek 2021-06-08 17:44:13 -04:00
parent 99585d88a0
commit f9c80eb12c
4 changed files with 17 additions and 7 deletions

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@ -22170,12 +22170,10 @@ 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,
friend_p, /*static_p=*/false);
member_p, friend_p, static_p);
/* If we are parsing an abstract-declarator, we must handle the
case where the dependent declarator is absent. */

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@ -0,0 +1,12 @@
// PR c++/100752
// { dg-do compile { target c++11 } }
struct S {
void f() noexcept {}
S &g() noexcept(noexcept(f())) { f(); return *this; }
};
struct X {
int& f() noexcept(noexcept(i));
int i;
};

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@ -1,7 +1,7 @@
// Test that the parser doesn't go into an infinite loop from ignoring the
// PRE_PARSED_FUNCTION_DECL token.
class C { static void* operator new(size_t); }; // { dg-error "24:declaration of .operator new. as non-function" }
// { dg-error "expected|ISO C\\+\\+ forbids" "" { target *-*-* } .-1 }
class C { static void* operator new(size_t); }; // { dg-error "37:.size_t. has not been declared" }
// { dg-error ".operator new. takes type .size_t." "" { target *-*-* } .-1 }
void* C::operator new(size_t) { return 0; } // { dg-error "" }
class D { D(int i): integer(i){}}; // { dg-error "" }

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@ -3,5 +3,5 @@
struct A
{
template<int> void* foo(; // { dg-error "primary-expression|initialization|static|template" }
template<int> void* foo(; // { dg-error "expected|initialization|static|template" }
};