[Bug c++/57543] decltype needs explicit 'this' pointer in member function declaration of template class with trailing return type

["paolo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57543

--- Comment #7 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Sat May 31 08:51:20 2014
New Revision: 211102

URL: http://gcc.gnu.org/viewcvs?rev=211102&root=gcc&view=rev
Log:
/cp
2014-05-31  Paolo Carlini  <paolo.carlini@oracle.com>

    DR 1227
    PR c++/57543
    * cp-tree.h (TYPE_HAS_LATE_RETURN_TYPE): Add.
    * pt.c (tsubst_function_type): Inject the this parameter; do the
    substitutions in the order mandated by the DR.
    (copy_default_args_to_explicit_spec): Copy TYPE_HAS_LATE_RETURN_TYPE.
    * decl.c (grokdeclarator): Maybe set TYPE_HAS_LATE_RETURN_TYPE.
    (static_fn_type): Copy it.
    * decl2.c (build_memfn_type, change_return_type,
    cp_reconstruct_complex_type): Likewise.
    * parser.c (cp_parser_lambda_declarator_opt): Likewise.
    * tree.c (strip_typedefs): Likewise.
    * typeck.c (merge_types): Likewise.

/testsuite
2014-05-31  Paolo Carlini  <paolo.carlini@oracle.com>

    DR 1227
    PR c++/57543
    * g++.dg/cpp0x/pr57543-1.C: New.
    * g++.dg/cpp0x/pr57543-2.C: Likewise.
    * g++.dg/cpp0x/pr57543-3.C: Likewise.
    * g++.dg/cpp0x/decltype59.C: Likewise.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/decltype59.C
    trunk/gcc/testsuite/g++.dg/cpp0x/pr57543-1.C
    trunk/gcc/testsuite/g++.dg/cpp0x/pr57543-2.C
    trunk/gcc/testsuite/g++.dg/cpp0x/pr57543-3.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/decl2.c
    trunk/gcc/cp/parser.c
    trunk/gcc/cp/pt.c
    trunk/gcc/cp/tree.c
    trunk/gcc/cp/typeck.c
    trunk/gcc/testsuite/ChangeLog