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llvm-project/clang/test/PCH/cxx-traits.cpp

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-Make TokenID of IdentifierInfo read-only, remove setTokenID(). -There are 2 instances that change the TokenID for GNU libstdc++ 4.2 compatibility. To handler those cases introduce a RevertedTokenID bitfield, RevertTokenIDToIdentifier() and hasRevertedTokenIDToIdentifier() methods. Store the bitfield in PCH. llvm-svn: 110868
2010-08-12 06:55:12 +08:00
// Test this without pch.
Follow-up to r218292: Add more REVERTIBLE_TYPE_TRAITs. r218292 reverted r197496 because it broke things. In addition to breaking things, r197496 also made all traits starting with __is_ revertible. Reinstantiate that part of r197496 because code out there (e.g. libc++) depends on this behavior. Fixes PR21045. llvm-svn: 218365
2014-09-24 11:28:54 +08:00
// RUN: %clang_cc1 -fms-extensions -include %S/cxx-traits.h -std=c++11 -fsyntax-only -verify %s
-Make TokenID of IdentifierInfo read-only, remove setTokenID(). -There are 2 instances that change the TokenID for GNU libstdc++ 4.2 compatibility. To handler those cases introduce a RevertedTokenID bitfield, RevertTokenIDToIdentifier() and hasRevertedTokenIDToIdentifier() methods. Store the bitfield in PCH. llvm-svn: 110868
2010-08-12 06:55:12 +08:00
Follow-up to r218292: Add more REVERTIBLE_TYPE_TRAITs. r218292 reverted r197496 because it broke things. In addition to breaking things, r197496 also made all traits starting with __is_ revertible. Reinstantiate that part of r197496 because code out there (e.g. libc++) depends on this behavior. Fixes PR21045. llvm-svn: 218365
2014-09-24 11:28:54 +08:00
// RUN: %clang_cc1 -fms-extensions -x c++-header -std=c++11 -emit-pch -o %t %S/cxx-traits.h
// RUN: %clang_cc1 -fms-extensions -std=c++11 -include-pch %t -DPCH -fsyntax-only -verify %s
-Make TokenID of IdentifierInfo read-only, remove setTokenID(). -There are 2 instances that change the TokenID for GNU libstdc++ 4.2 compatibility. To handler those cases introduce a RevertedTokenID bitfield, RevertTokenIDToIdentifier() and hasRevertedTokenIDToIdentifier() methods. Store the bitfield in PCH. llvm-svn: 110868
2010-08-12 06:55:12 +08:00
Emit an extension warning when changing system header tokens clang converts keywords to identifiers for compatibility with various system headers such as GNU libc. Implement a -Wkeyword-compat extension warning to diagnose those cases. The warning is on by default but will generally be ignored in system headers. It can however be enabled globally to aid standards conformance testing. This also changes the __uptr keyword avoidance from r195710 to no longer special-case system headers, bringing it in line with other similar workarounds in clang. Implementation returns bool for symmetry with token annotation functions. Some examples: warning: keyword '__is_pod' will be treated as an identifier for the remainder of the translation unit [-Wkeyword-compat] struct __is_pod warning: keyword '__uptr' will be treated as an identifier here [-Wkeyword-compat] union w *__uptr; llvm-svn: 196212
2013-12-03 14:13:01 +08:00
#ifdef PCH
Prior to adding the new "expected-no-diagnostics" directive to VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive. llvm-svn: 166280
2012-10-19 20:44:48 +08:00
// expected-no-diagnostics
Emit an extension warning when changing system header tokens clang converts keywords to identifiers for compatibility with various system headers such as GNU libc. Implement a -Wkeyword-compat extension warning to diagnose those cases. The warning is on by default but will generally be ignored in system headers. It can however be enabled globally to aid standards conformance testing. This also changes the __uptr keyword avoidance from r195710 to no longer special-case system headers, bringing it in line with other similar workarounds in clang. Implementation returns bool for symmetry with token annotation functions. Some examples: warning: keyword '__is_pod' will be treated as an identifier for the remainder of the translation unit [-Wkeyword-compat] struct __is_pod warning: keyword '__uptr' will be treated as an identifier here [-Wkeyword-compat] union w *__uptr; llvm-svn: 196212
2013-12-03 14:13:01 +08:00
#endif
Prior to adding the new "expected-no-diagnostics" directive to VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive. llvm-svn: 166280
2012-10-19 20:44:48 +08:00
Revert r197496, as it broke REVERTIBLE_TYPE_TRAITs from PCH files. Also add a test to make sure that this doesn't break again. Fixes PR21036. llvm-svn: 218292
2014-09-23 12:09:56 +08:00
bool _Is_pod_comparator = n::__is_pod<int>::__value;
bool _Is_empty_check = n::__is_empty<int>::__value;
Implement a new type trait __is_trivially_constructible(T, Args...) that provides the behavior of the C++11 library trait std::is_trivially_constructible<T, Args...>, which can't be implemented purely as a library. Since __is_trivially_constructible can have zero or more arguments, I needed to add Yet Another Type Trait Expression Class, this one handling arbitrary arguments. The next step will be to migrate UnaryTypeTrait and BinaryTypeTrait over to this new, more general TypeTrait class. Fixes the Clang side of <rdar://problem/10895483> / PR12038. llvm-svn: 151352
2012-02-24 15:38:34 +08:00
Revert r197496, as it broke REVERTIBLE_TYPE_TRAITs from PCH files. Also add a test to make sure that this doesn't break again. Fixes PR21036. llvm-svn: 218292
2014-09-23 12:09:56 +08:00
bool default_construct_int = n::is_trivially_constructible<int>::value;
bool copy_construct_int = n::is_trivially_constructible<int, const int&>::value;
// The built-ins should still work too:
Follow-up to r218292: Add more REVERTIBLE_TYPE_TRAITs. r218292 reverted r197496 because it broke things. In addition to breaking things, r197496 also made all traits starting with __is_ revertible. Reinstantiate that part of r197496 because code out there (e.g. libc++) depends on this behavior. Fixes PR21045. llvm-svn: 218365
2014-09-24 11:28:54 +08:00
bool _is_abstract_result = __is_abstract(int);
[Sema] Add __is_aggregate type-trait Summary: [LWG 2911](http://cplusplus.github.io/LWG/lwg-defects.html#2911) adds `std::is_aggregate` to the library, which requires a new builtin trait. This patch implements `__is_aggregate`. Reviewers: rsmith, majnemer, aaron.ballman Reviewed By: aaron.ballman Subscribers: STL_MSFT, cfe-commits Differential Revision: https://reviews.llvm.org/D31513 llvm-svn: 300116
2017-04-13 06:12:15 +08:00
bool _is_aggregate_result = __is_aggregate(int);
Follow-up to r218292: Add more REVERTIBLE_TYPE_TRAITs. r218292 reverted r197496 because it broke things. In addition to breaking things, r197496 also made all traits starting with __is_ revertible. Reinstantiate that part of r197496 because code out there (e.g. libc++) depends on this behavior. Fixes PR21045. llvm-svn: 218365
2014-09-24 11:28:54 +08:00
bool _is_arithmetic_result = __is_arithmetic(int);
bool _is_array_result = __is_array(int);
Clang support for __is_assignable intrinsic MSVC now supports the __is_assignable type trait intrinsic, to enable easier and more efficient implementation of the Standard Library's is_assignable trait. As of Visual Studio 2015 Update 3, the VC Standard Library implementation uses the new intrinsic unconditionally. The implementation is pretty straightforward due to the previously existing is_nothrow_assignable and is_trivially_assignable. We handle __is_assignable via the same code as the other two except that we skip the extra checks for nothrow or triviality. Patch by Dave Bartolomeo! Differential Revision: http://reviews.llvm.org/D20492 llvm-svn: 270458
2016-05-24 01:21:55 +08:00
bool _is_assignable_result = __is_assignable(int, int);
Follow-up to r218292: Add more REVERTIBLE_TYPE_TRAITs. r218292 reverted r197496 because it broke things. In addition to breaking things, r197496 also made all traits starting with __is_ revertible. Reinstantiate that part of r197496 because code out there (e.g. libc++) depends on this behavior. Fixes PR21045. llvm-svn: 218365
2014-09-24 11:28:54 +08:00
bool _is_base_of_result = __is_base_of(int, int);
bool _is_class_result = __is_class(int);
bool _is_complete_type_result = __is_complete_type(int);
bool _is_compound_result = __is_compound(int);
bool _is_const_result = __is_const(int);
bool _is_constructible_result = __is_constructible(int);
bool _is_convertible_result = __is_convertible(int, int);
bool _is_convertible_to_result = __is_convertible_to(int, int);
bool _is_destructible_result = __is_destructible(int);
Revert r197496, as it broke REVERTIBLE_TYPE_TRAITs from PCH files. Also add a test to make sure that this doesn't break again. Fixes PR21036. llvm-svn: 218292
2014-09-23 12:09:56 +08:00
bool _is_empty_result = __is_empty(int);
Follow-up to r218292: Add more REVERTIBLE_TYPE_TRAITs. r218292 reverted r197496 because it broke things. In addition to breaking things, r197496 also made all traits starting with __is_ revertible. Reinstantiate that part of r197496 because code out there (e.g. libc++) depends on this behavior. Fixes PR21045. llvm-svn: 218365
2014-09-24 11:28:54 +08:00
bool _is_enum_result = __is_enum(int);
bool _is_floating_point_result = __is_floating_point(int);
bool _is_final_result = __is_final(int);
bool _is_function_result = __is_function(int);
bool _is_fundamental_result = __is_fundamental(int);
bool _is_integral_result = __is_integral(int);
bool _is_interface_class_result = __is_interface_class(int);
bool _is_literal_result = __is_literal(int);
bool _is_lvalue_expr_result = __is_lvalue_expr(0);
bool _is_lvalue_reference_result = __is_lvalue_reference(int);
bool _is_member_function_pointer_result = __is_member_function_pointer(int);
bool _is_member_object_pointer_result = __is_member_object_pointer(int);
bool _is_member_pointer_result = __is_member_pointer(int);
bool _is_nothrow_assignable_result = __is_nothrow_assignable(int, int);
bool _is_nothrow_constructible_result = __is_nothrow_constructible(int);
bool _is_nothrow_destructible_result = __is_nothrow_destructible(int);
bool _is_object_result = __is_object(int);
bool _is_pod_result = __is_pod(int);
bool _is_pointer_result = __is_pointer(int);
bool _is_polymorphic_result = __is_polymorphic(int);
bool _is_reference_result = __is_reference(int);
bool _is_rvalue_expr_result = __is_rvalue_expr(0);
bool _is_rvalue_reference_result = __is_rvalue_reference(int);
bool _is_same_result = __is_same(int, int);
bool _is_scalar_result = __is_scalar(int);
bool _is_sealed_result = __is_sealed(int);
bool _is_signed_result = __is_signed(int);
bool _is_standard_layout_result = __is_standard_layout(int);
bool _is_trivial_result = __is_trivial(int);
bool _is_trivially_assignable_result = __is_trivially_assignable(int, int);
bool _is_trivially_constructible_result = __is_trivially_constructible(int);
bool _is_trivially_copyable_result = __is_trivially_copyable(int);
bool _is_union_result = __is_union(int);
bool _is_unsigned_result = __is_unsigned(int);
bool _is_void_result = __is_void(int);
bool _is_volatile_result = __is_volatile(int);