From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTP id 47D75385840D for ; Fri, 26 Jul 2024 19:30:02 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 47D75385840D Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 47D75385840D Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1722022203; cv=none; b=U0fr0CU1u1e7ItFKIgSzPPCllIK+yScinyspmGMDmroSTPhKgmbOSMh1aWj2AhqxOWBznnWGjwaCNFpedPPauslClvkKwMmCxIXh8iHs+0MIymZ1RGRiCDJSVIsl6PEkWYhSzEgYU+M5PdqQqBHf2OOZI9ZjCaTfiQG9XzPfb7M= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1722022203; c=relaxed/simple; bh=fSScEZqF06Nk1sjO2LAOLQLn5JQaUDe2Gb7jxQuXUJQ=; h=DKIM-Signature:From:To:Subject:Date:Message-ID:MIME-Version; b=mnBQMQAWeiBogvGQS9P0OcvrcEH039Gm2n7T+0JtOUi+NMuYzLFklsVZ9d0snS5658gxmik2ZoVPCtgkAKblWCrvkUYHwqt2WqoWuwG9n1ANHDR9Z83YBNbCBFm3XoYdFndqtLLIb1kbGW5HTFYkXfIQrh8DVxl6AvRMID8SMKg= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1722022202; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=cRy0OWScSBhOnCYY8susuDZRAWJVC0JT6CtRxy/HjOg=; b=WyrtIpJh8OnJ390znJ9MzLC1DX4mGx5Yg8lqGL6NTYqq1s4H2qhPOSu0V8wXXcNQWW43B0 y7opz2dczXcrZYg3tMdDFTRy9Yv6yMeEKoIW1LORL61mLqNYdWl7MBAfVjmMMbUSwcI95y rEG/qLgpNFjE3QhZLYRQPXp+veyc98s= Received: from mail-qk1-f197.google.com (mail-qk1-f197.google.com [209.85.222.197]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-412-BqaHY4zmPYeudpMDXSYjVw-1; Fri, 26 Jul 2024 15:29:59 -0400 X-MC-Unique: BqaHY4zmPYeudpMDXSYjVw-1 Received: by mail-qk1-f197.google.com with SMTP id af79cd13be357-79efc85b0b2so69245585a.2 for ; Fri, 26 Jul 2024 12:29:59 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722022199; x=1722626999; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=cRy0OWScSBhOnCYY8susuDZRAWJVC0JT6CtRxy/HjOg=; b=Hn07X2QWRGQ4LCtCjSPaiMADGBZS0qiDdojo65ZciIFCN7wXjUafs1aygMuMPpIkB6 5MdCukovVP0sGKhJD9y3ayUk5u24suFq6GajwVYRSrlQYSAt0Unb0qn5AWJgYWJYAfqk om8rhEjxHFJFKqpLjfiPgjel5ZkIh63eLl6xiMMzhGOs338pF3lVX5JznHkrQMCbpV6k 9tVt4Y0LqPaGsXwJRoouw7tC87QlPs3Zm5VQ3rn0H7RDxBMJvn79PP0/yumftcWuDkG6 uqVW2HAoo4ouezdk3t3yCCiugAgEaMd2St3svx/F2XZZv/C8srHYi+Wuq7Dn43odN4v4 vyXQ== X-Gm-Message-State: AOJu0Yw08AXCeTm/BqoXFc5ZB0lzHZdPazE0X0Y9Oa4O0PPgx/gtaunr Je2FMeY7pAcYHx3fRPVBnSUap/u24NFXRbeuSt+oQaUFtLzOAtgWsGIu0TZ2YU7wddkF838qKJu WqzjXf9sVG0qQKM5cmnFkM79Vc3uljAzpb9DFnjQzn1zM1+jcWb8NiEl/BMtLVZdWU2To5CmnQu eRjBDWh8a7sWRBN0Cy9OhWPol3duQ19t+NZkg= X-Received: by 2002:a05:620a:19a0:b0:79f:4e6:181e with SMTP id af79cd13be357-7a1e522f890mr92808385a.13.1722022199109; Fri, 26 Jul 2024 12:29:59 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGFj3EZV2MVAMP5MmO+fyPj7qJ3aUu2dO+JLlaLBM/N6EkqaOF794xK+Pc5vYvEoOEiesBBGw== X-Received: by 2002:a05:620a:19a0:b0:79f:4e6:181e with SMTP id af79cd13be357-7a1e522f890mr92805385a.13.1722022198537; Fri, 26 Jul 2024 12:29:58 -0700 (PDT) Received: from jason-thinkpadp1gen4i.rmtusma.csb (130-44-146-16.s12558.c3-0.arl-cbr1.sbo-arl.ma.cable.rcncustomer.com. [130.44.146.16]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7a1d74342b8sm206329085a.73.2024.07.26.12.29.57 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jul 2024 12:29:57 -0700 (PDT) From: Jason Merrill To: gcc-patches@gcc.gnu.org Subject: [pushed] c++: trait as typename scope [PR116052] Date: Fri, 26 Jul 2024 15:28:53 -0400 Message-ID: <20240726192956.3672432-1-jason@redhat.com> X-Mailer: git-send-email 2.45.2 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=-12.3 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_H4,RCVD_IN_MSPIKE_WL,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< -- The stdexec library currently wrongly ends up using __decay as the scope of a typename, which leads to a crash. Let's give an error instead. PR c++/116052 gcc/cp/ChangeLog: * mangle.cc (write_prefix): Handle TRAIT_EXPR. gcc/testsuite/ChangeLog: * g++.dg/ext/decay1.C: New test. --- gcc/cp/mangle.cc | 3 ++- gcc/testsuite/g++.dg/ext/decay1.C | 16 ++++++++++++++++ 2 files changed, 18 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/g++.dg/ext/decay1.C diff --git a/gcc/cp/mangle.cc b/gcc/cp/mangle.cc index a04bc584586..e7391220234 100644 --- a/gcc/cp/mangle.cc +++ b/gcc/cp/mangle.cc @@ -1300,7 +1300,8 @@ write_prefix (const tree node) MANGLE_TRACE_TREE ("prefix", node); - if (TREE_CODE (node) == DECLTYPE_TYPE) + if (TREE_CODE (node) == DECLTYPE_TYPE + || TREE_CODE (node) == TRAIT_TYPE) { write_type (node); return; diff --git a/gcc/testsuite/g++.dg/ext/decay1.C b/gcc/testsuite/g++.dg/ext/decay1.C new file mode 100644 index 00000000000..dd457ba307c --- /dev/null +++ b/gcc/testsuite/g++.dg/ext/decay1.C @@ -0,0 +1,16 @@ +// PR c++/116052 +// { dg-do compile { target c++11 } } + +template using decay_t = __decay(T); +template void g(typename decay_t::foo); // { dg-error "built-in" } +template void f() +{ + g(0); +} + +struct A { using foo = int; }; + +int main() +{ + f(); +} base-commit: 2fb5bbe5ee9c148cd7d1068b18be66cc52054812 -- 2.45.2