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| author | Jakub Jelinek <jakub@redhat.com> | 2022-11-16 07:37:05 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2022-11-16 07:37:05 +0100 |
| commit | 7f014022861b5b3f00be9bb32fe3fe772517ddac (patch) | |
| tree | ed009c2de327bf023de96fb16d0e71d14c749985 /gcc/cp/constraint.cc | |
| parent | 7c6cd9c05efca29a1a9635b81c86cbad25bbdbbe (diff) | |
| download | gcc-7f014022861b5b3f00be9bb32fe3fe772517ddac.zip gcc-7f014022861b5b3f00be9bb32fe3fe772517ddac.tar.gz gcc-7f014022861b5b3f00be9bb32fe3fe772517ddac.tar.bz2 | |
c++: Allow attributes on concepts - DR 2428
The following patch adds parsing of attributes to concept definition,
allows deprecated attribute to be specified (as CONCEPT_DECL now needs
to be checked in c-family/c-attribs.cc, I had to move its declaration
from cp/*.def to c-family/*.def) and checks TREE_DEPRECATED in
build_standard_check (not sure if that is the right spot, or whether
it shouldn't be checked also for variable and function concepts and
how to write testcase coverage for that).
2022-11-16 Jakub Jelinek <jakub@redhat.com>
gcc/c-family/
* c-common.def (CONCEPT_DECL): New tree, moved here from
cp-tree.def.
* c-common.cc (c_common_init_ts): Handle CONCEPT_DECL.
* c-attribs.cc (handle_deprecated_attribute): Allow deprecated
attribute on CONCEPT_DECL.
gcc/cp/
* cp-tree.def (CONCEPT_DECL): Move to c-common.def.
* cp-objcp-common.cc (cp_common_init_ts): Don't handle CONCEPT_DECL
here.
* cp-tree.h (finish_concept_definition): Add ATTRS parameter.
* parser.cc (cp_parser_concept_definition): Parse attributes in
between identifier and =. Adjust finish_concept_definition
caller.
* pt.cc (finish_concept_definition): Add ATTRS parameter. Call
cplus_decl_attributes.
* constraint.cc (build_standard_check): If CONCEPT_DECL is
TREE_DEPRECATED, emit -Wdeprecated-declaration warnings.
gcc/testsuite/
* g++.dg/cpp2a/concepts-dr2428.C: New test.
Diffstat (limited to 'gcc/cp/constraint.cc')
| -rw-r--r-- | gcc/cp/constraint.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/cp/constraint.cc b/gcc/cp/constraint.cc index 3ddbd53..a113d3e 100644 --- a/gcc/cp/constraint.cc +++ b/gcc/cp/constraint.cc @@ -1396,6 +1396,8 @@ build_standard_check (tree tmpl, tree args, tsubst_flags_t complain) { gcc_assert (standard_concept_p (tmpl)); gcc_assert (TREE_CODE (tmpl) == TEMPLATE_DECL); + if (TREE_DEPRECATED (DECL_TEMPLATE_RESULT (tmpl))) + warn_deprecated_use (DECL_TEMPLATE_RESULT (tmpl), NULL_TREE); tree parms = INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (tmpl)); args = coerce_template_parms (parms, args, tmpl, complain); if (args == error_mark_node) |