https://llvm.org/bugs/show_bug.cgi?id=27684
Bug ID: 27684
Summary: tuple api break
Product: libc++
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: kre...@email.com
CC: llvm-bugs@lists.llvm.org, mclow.li...@gmail.com
Classification: Unclassified
With clang/libc++/libc++abi 3.9.0 (trunk 268575), I am no longer to build
webkitgtk on Linux. It appears that some recent changes to the tuple header
made this happen.
The code still compiles with clang/libc++/libc++abi 3.8.0 and gcc 6.1.0.
See also: https://bugs.webkit.org/show_bug.cgi?id=157382
In file included from <built-in>:1:
In file included from
/sources/webkitgtk-2.12.2/Source/WebKit2/WebKit2Prefix.h:69:
In file included from /usr/bin/../include/c++/v1/algorithm:631:
/usr/bin/../include/c++/v1/type_traits:1331:59: error: incomplete type
'WebCore::IDBRequestData' used in type trait expression
: public integral_constant<bool, __is_base_of(_Bp, _Dp)> {};
^
/usr/bin/../include/c++/v1/type_traits:543:37: note: in instantiation of
template class 'std::__1::is_base_of<std::__1::allocator_arg_t,
WebCore::IDBRequestData>' requested
here
struct __lazy_and : __lazy_and_impl<_P1::type::value, _Pr...> {};
^
/usr/bin/../include/c++/v1/tuple:664:9: note: in instantiation of template
class 'std::__1::__lazy_and<std::__1::is_base_of<std::__1::allocator_arg_t,
WebCore::IDBRequestData>,
std::__1::__lazy_all<std::__1::__dependent_type<std::__1::is_default_constructible<const
WebCore::IDBRequestData &>, true>,
std::__1::__dependent_type<std::__1::is_default_constructible<const
WebCore::IDBObjectStoreInfo &>, true> > >' requested here
__lazy_and<
^
/usr/bin/../include/c++/v1/tuple:670:5: note: in instantiation of default
argument for 'tuple<WebCore::IDBRequestData, WebCore::IDBObjectStoreInfo,
true>' required here
tuple(_AllocArgT, _Alloc const& __a)
^~~~~
/sources/webkitgtk-build/DerivedSources/WebKit2/WebIDBConnectionToClientMessages.h:180:11:
note: while substituting deduced template arguments into function template
'tuple'
[with _AllocArgT = WebCore::IDBRequestData, _Alloc =
WebCore::IDBObjectStoreInfo, _Dummy = (no value), $3 = (no value)]
: m_arguments(requestData, info)
^
/sources/webkitgtk-2.12.2/Source/WebKit2/DatabaseProcess/IndexedDB/WebIDBConnectionToClient.h:40:7:
note: forward declaration of 'WebCore::IDBRequestData'
class IDBRequestData;
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