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[130.44.159.43]) by smtp.gmail.com with ESMTPSA id k10-20020ac8604a000000b003d3a34d2eb2sm2138334qtm.41.2023.03.17.14.32.08 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Mar 2023 14:32:08 -0700 (PDT) From: Jason Merrill To: gcc-patches@gcc.gnu.org Subject: [pushed] c++: throw and private destructor [PR109172] Date: Fri, 17 Mar 2023 17:32:05 -0400 Message-Id: <20230317213205.1383604-1-jason@redhat.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-Spam-Status: No, score=-12.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Tested x86_64-pc-linux-gnu, applying to trunk. -- 8< -- Since we aren't going through the normal call machinery, we need to check the dtor access specifically. PR c++/109172 gcc/cp/ChangeLog: * except.cc (build_throw): Check dtor access. gcc/testsuite/ChangeLog: * g++.dg/eh/dtor4.C: New test. --- gcc/cp/except.cc | 10 ++++++++-- gcc/testsuite/g++.dg/eh/dtor4.C | 15 +++++++++++++++ 2 files changed, 23 insertions(+), 2 deletions(-) create mode 100644 gcc/testsuite/g++.dg/eh/dtor4.C diff --git a/gcc/cp/except.cc b/gcc/cp/except.cc index 916e8189db6..91a5e049860 100644 --- a/gcc/cp/except.cc +++ b/gcc/cp/except.cc @@ -639,6 +639,8 @@ build_throw (location_t loc, tree exp) tree object, ptr; tree allocate_expr; + tsubst_flags_t complain = tf_warning_or_error; + /* The CLEANUP_TYPE is the internal type of a destructor. */ if (!cleanup_type) { @@ -759,11 +761,15 @@ build_throw (location_t loc, tree exp) cleanup = NULL_TREE; if (type_build_dtor_call (TREE_TYPE (object))) { - tree dtor_fn = lookup_fnfields (TYPE_BINFO (TREE_TYPE (object)), + tree binfo = TYPE_BINFO (TREE_TYPE (object)); + tree dtor_fn = lookup_fnfields (binfo, complete_dtor_identifier, 0, tf_warning_or_error); dtor_fn = BASELINK_FUNCTIONS (dtor_fn); - mark_used (dtor_fn); + if (!mark_used (dtor_fn) + || !perform_or_defer_access_check (binfo, dtor_fn, + dtor_fn, complain)) + return error_mark_node; if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (TREE_TYPE (object))) { cxx_mark_addressable (dtor_fn); diff --git a/gcc/testsuite/g++.dg/eh/dtor4.C b/gcc/testsuite/g++.dg/eh/dtor4.C new file mode 100644 index 00000000000..6c0e804fe8a --- /dev/null +++ b/gcc/testsuite/g++.dg/eh/dtor4.C @@ -0,0 +1,15 @@ +// PR c++/109172 + +class Demo +{ + ~Demo(); +}; + +int main() +{ + try + { + throw *new Demo; // { dg-error private } + } + catch(const Demo& e) { } +} base-commit: c48be8298c27143c1a684c0cb9689c88d16f4b49 -- 2.31.1