Features.def revision 360784
1//===--- Features.def - Features and Extensions database --------*- C++ -*-===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8// 9// This file defines features exposed via __has_feature and extensions exposed 10// via __has_extension. Users of this file must either define the FEATURE or 11// EXTENSION macros (or both) to make use of this information. Note that these 12// macros expect the following declarations to be available for the Predicate: 13// 14// const LangOptions &LangOpts; 15// const Preprocessor &PP; 16// 17// The Predicate field dictates the conditions under which the feature or 18// extension will be made available. 19// 20// FEATURE(...) should be used to advertise support for standard language 21// features, whereas EXTENSION(...) should be used for clang extensions. Note 22// that many of the identifiers in this file don't follow this rule for backward 23// compatibility reasons. 24// 25//===----------------------------------------------------------------------===// 26 27#if !defined(FEATURE) && !defined(EXTENSION) 28# error Define either the FEATURE or EXTENSION macro to handle features 29#endif 30 31#ifndef FEATURE 32#define FEATURE(Name, Predicate) 33#endif 34 35#ifndef EXTENSION 36#define EXTENSION(Name, Predicate) 37#endif 38 39FEATURE(address_sanitizer, 40 LangOpts.Sanitize.hasOneOf(SanitizerKind::Address | 41 SanitizerKind::KernelAddress)) 42FEATURE(leak_sanitizer, 43 LangOpts.Sanitize.has(SanitizerKind::Leak)) 44FEATURE(hwaddress_sanitizer, 45 LangOpts.Sanitize.hasOneOf(SanitizerKind::HWAddress | 46 SanitizerKind::KernelHWAddress)) 47FEATURE(memtag_sanitizer, LangOpts.Sanitize.has(SanitizerKind::MemTag)) 48FEATURE(xray_instrument, LangOpts.XRayInstrument) 49FEATURE(undefined_behavior_sanitizer, 50 LangOpts.Sanitize.hasOneOf(SanitizerKind::Undefined)) 51FEATURE(assume_nonnull, true) 52FEATURE(attribute_analyzer_noreturn, true) 53FEATURE(attribute_availability, true) 54FEATURE(attribute_availability_with_message, true) 55FEATURE(attribute_availability_app_extension, true) 56FEATURE(attribute_availability_with_version_underscores, true) 57FEATURE(attribute_availability_tvos, true) 58FEATURE(attribute_availability_watchos, true) 59FEATURE(attribute_availability_with_strict, true) 60FEATURE(attribute_availability_with_replacement, true) 61FEATURE(attribute_availability_in_templates, true) 62FEATURE(attribute_availability_swift, true) 63FEATURE(attribute_cf_returns_not_retained, true) 64FEATURE(attribute_cf_returns_retained, true) 65FEATURE(attribute_cf_returns_on_parameters, true) 66FEATURE(attribute_deprecated_with_message, true) 67FEATURE(attribute_deprecated_with_replacement, true) 68FEATURE(attribute_ext_vector_type, true) 69FEATURE(attribute_ns_returns_not_retained, true) 70FEATURE(attribute_ns_returns_retained, true) 71FEATURE(attribute_ns_consumes_self, true) 72FEATURE(attribute_ns_consumed, true) 73FEATURE(attribute_cf_consumed, true) 74FEATURE(attribute_objc_ivar_unused, true) 75FEATURE(attribute_objc_method_family, true) 76FEATURE(attribute_overloadable, true) 77FEATURE(attribute_unavailable_with_message, true) 78FEATURE(attribute_unused_on_fields, true) 79FEATURE(attribute_diagnose_if_objc, true) 80FEATURE(blocks, LangOpts.Blocks) 81FEATURE(c_thread_safety_attributes, true) 82FEATURE(cxx_exceptions, LangOpts.CXXExceptions) 83FEATURE(cxx_rtti, LangOpts.RTTI &&LangOpts.RTTIData) 84FEATURE(enumerator_attributes, true) 85FEATURE(nullability, true) 86FEATURE(nullability_on_arrays, true) 87FEATURE(memory_sanitizer, 88 LangOpts.Sanitize.hasOneOf(SanitizerKind::Memory | 89 SanitizerKind::KernelMemory)) 90FEATURE(thread_sanitizer, LangOpts.Sanitize.has(SanitizerKind::Thread)) 91FEATURE(dataflow_sanitizer, LangOpts.Sanitize.has(SanitizerKind::DataFlow)) 92FEATURE(scudo, LangOpts.Sanitize.hasOneOf(SanitizerKind::Scudo)) 93// Objective-C features 94FEATURE(objc_arr, LangOpts.ObjCAutoRefCount) // FIXME: REMOVE? 95FEATURE(objc_arc, LangOpts.ObjCAutoRefCount) 96FEATURE(objc_arc_fields, true) 97FEATURE(objc_arc_weak, LangOpts.ObjCWeak) 98FEATURE(objc_default_synthesize_properties, LangOpts.ObjC) 99FEATURE(objc_fixed_enum, LangOpts.ObjC) 100FEATURE(objc_instancetype, LangOpts.ObjC) 101FEATURE(objc_kindof, LangOpts.ObjC) 102FEATURE(objc_modules, LangOpts.ObjC && LangOpts.Modules) 103FEATURE(objc_nonfragile_abi, LangOpts.ObjCRuntime.isNonFragile()) 104FEATURE(objc_property_explicit_atomic, true) 105FEATURE(objc_protocol_qualifier_mangling, true) 106FEATURE(objc_weak_class, LangOpts.ObjCRuntime.hasWeakClassImport()) 107FEATURE(ownership_holds, true) 108FEATURE(ownership_returns, true) 109FEATURE(ownership_takes, true) 110FEATURE(objc_bool, true) 111FEATURE(objc_subscripting, LangOpts.ObjCRuntime.isNonFragile()) 112FEATURE(objc_array_literals, LangOpts.ObjC) 113FEATURE(objc_dictionary_literals, LangOpts.ObjC) 114FEATURE(objc_boxed_expressions, LangOpts.ObjC) 115FEATURE(objc_boxed_nsvalue_expressions, LangOpts.ObjC) 116FEATURE(arc_cf_code_audited, true) 117FEATURE(objc_bridge_id, true) 118FEATURE(objc_bridge_id_on_typedefs, true) 119FEATURE(objc_generics, LangOpts.ObjC) 120FEATURE(objc_generics_variance, LangOpts.ObjC) 121FEATURE(objc_class_property, LangOpts.ObjC) 122FEATURE(objc_c_static_assert, LangOpts.C11) 123FEATURE(objc_cxx_static_assert, LangOpts.CPlusPlus11) 124EXTENSION(objc_c_static_assert, true) 125// C11 features 126FEATURE(c_alignas, LangOpts.C11) 127FEATURE(c_alignof, LangOpts.C11) 128FEATURE(c_atomic, LangOpts.C11) 129FEATURE(c_generic_selections, LangOpts.C11) 130FEATURE(c_static_assert, LangOpts.C11) 131FEATURE(c_thread_local, LangOpts.C11 &&PP.getTargetInfo().isTLSSupported()) 132// C++11 features 133FEATURE(cxx_access_control_sfinae, LangOpts.CPlusPlus11) 134FEATURE(cxx_alias_templates, LangOpts.CPlusPlus11) 135FEATURE(cxx_alignas, LangOpts.CPlusPlus11) 136FEATURE(cxx_alignof, LangOpts.CPlusPlus11) 137FEATURE(cxx_atomic, LangOpts.CPlusPlus11) 138FEATURE(cxx_attributes, LangOpts.CPlusPlus11) 139FEATURE(cxx_auto_type, LangOpts.CPlusPlus11) 140FEATURE(cxx_constexpr, LangOpts.CPlusPlus11) 141FEATURE(cxx_constexpr_string_builtins, LangOpts.CPlusPlus11) 142FEATURE(cxx_decltype, LangOpts.CPlusPlus11) 143FEATURE(cxx_decltype_incomplete_return_types, LangOpts.CPlusPlus11) 144FEATURE(cxx_default_function_template_args, LangOpts.CPlusPlus11) 145FEATURE(cxx_defaulted_functions, LangOpts.CPlusPlus11) 146FEATURE(cxx_delegating_constructors, LangOpts.CPlusPlus11) 147FEATURE(cxx_deleted_functions, LangOpts.CPlusPlus11) 148FEATURE(cxx_explicit_conversions, LangOpts.CPlusPlus11) 149FEATURE(cxx_generalized_initializers, LangOpts.CPlusPlus11) 150FEATURE(cxx_implicit_moves, LangOpts.CPlusPlus11) 151FEATURE(cxx_inheriting_constructors, LangOpts.CPlusPlus11) 152FEATURE(cxx_inline_namespaces, LangOpts.CPlusPlus11) 153FEATURE(cxx_lambdas, LangOpts.CPlusPlus11) 154FEATURE(cxx_local_type_template_args, LangOpts.CPlusPlus11) 155FEATURE(cxx_nonstatic_member_init, LangOpts.CPlusPlus11) 156FEATURE(cxx_noexcept, LangOpts.CPlusPlus11) 157FEATURE(cxx_nullptr, LangOpts.CPlusPlus11) 158FEATURE(cxx_override_control, LangOpts.CPlusPlus11) 159FEATURE(cxx_range_for, LangOpts.CPlusPlus11) 160FEATURE(cxx_raw_string_literals, LangOpts.CPlusPlus11) 161FEATURE(cxx_reference_qualified_functions, LangOpts.CPlusPlus11) 162FEATURE(cxx_rvalue_references, LangOpts.CPlusPlus11) 163FEATURE(cxx_strong_enums, LangOpts.CPlusPlus11) 164FEATURE(cxx_static_assert, LangOpts.CPlusPlus11) 165FEATURE(cxx_thread_local, 166 LangOpts.CPlusPlus11 &&PP.getTargetInfo().isTLSSupported()) 167FEATURE(cxx_trailing_return, LangOpts.CPlusPlus11) 168FEATURE(cxx_unicode_literals, LangOpts.CPlusPlus11) 169FEATURE(cxx_unrestricted_unions, LangOpts.CPlusPlus11) 170FEATURE(cxx_user_literals, LangOpts.CPlusPlus11) 171FEATURE(cxx_variadic_templates, LangOpts.CPlusPlus11) 172// C++14 features 173FEATURE(cxx_aggregate_nsdmi, LangOpts.CPlusPlus14) 174FEATURE(cxx_binary_literals, LangOpts.CPlusPlus14) 175FEATURE(cxx_contextual_conversions, LangOpts.CPlusPlus14) 176FEATURE(cxx_decltype_auto, LangOpts.CPlusPlus14) 177FEATURE(cxx_generic_lambdas, LangOpts.CPlusPlus14) 178FEATURE(cxx_init_captures, LangOpts.CPlusPlus14) 179FEATURE(cxx_relaxed_constexpr, LangOpts.CPlusPlus14) 180FEATURE(cxx_return_type_deduction, LangOpts.CPlusPlus14) 181FEATURE(cxx_variable_templates, LangOpts.CPlusPlus14) 182// NOTE: For features covered by SD-6, it is preferable to provide *only* 183// the SD-6 macro and not a __has_feature check. 184 185// C++ TSes 186// FEATURE(cxx_runtime_arrays, LangOpts.CPlusPlusTSArrays) 187// FEATURE(cxx_concepts, LangOpts.CPlusPlusTSConcepts) 188// FIXME: Should this be __has_feature or __has_extension? 189// FEATURE(raw_invocation_type, LangOpts.CPlusPlus) 190// Type traits 191// N.B. Additional type traits should not be added to the following list. 192// Instead, they should be detected by has_builtin. 193FEATURE(has_nothrow_assign, LangOpts.CPlusPlus) 194FEATURE(has_nothrow_copy, LangOpts.CPlusPlus) 195FEATURE(has_nothrow_constructor, LangOpts.CPlusPlus) 196FEATURE(has_trivial_assign, LangOpts.CPlusPlus) 197FEATURE(has_trivial_copy, LangOpts.CPlusPlus) 198FEATURE(has_trivial_constructor, LangOpts.CPlusPlus) 199FEATURE(has_trivial_destructor, LangOpts.CPlusPlus) 200FEATURE(has_virtual_destructor, LangOpts.CPlusPlus) 201FEATURE(is_abstract, LangOpts.CPlusPlus) 202FEATURE(is_base_of, LangOpts.CPlusPlus) 203FEATURE(is_class, LangOpts.CPlusPlus) 204FEATURE(is_constructible, LangOpts.CPlusPlus) 205FEATURE(is_convertible_to, LangOpts.CPlusPlus) 206FEATURE(is_empty, LangOpts.CPlusPlus) 207FEATURE(is_enum, LangOpts.CPlusPlus) 208FEATURE(is_final, LangOpts.CPlusPlus) 209FEATURE(is_literal, LangOpts.CPlusPlus) 210FEATURE(is_standard_layout, LangOpts.CPlusPlus) 211FEATURE(is_pod, LangOpts.CPlusPlus) 212FEATURE(is_polymorphic, LangOpts.CPlusPlus) 213FEATURE(is_sealed, LangOpts.CPlusPlus &&LangOpts.MicrosoftExt) 214FEATURE(is_trivial, LangOpts.CPlusPlus) 215FEATURE(is_trivially_assignable, LangOpts.CPlusPlus) 216FEATURE(is_trivially_constructible, LangOpts.CPlusPlus) 217FEATURE(is_trivially_copyable, LangOpts.CPlusPlus) 218FEATURE(is_union, LangOpts.CPlusPlus) 219FEATURE(modules, LangOpts.Modules) 220FEATURE(safe_stack, LangOpts.Sanitize.has(SanitizerKind::SafeStack)) 221FEATURE(shadow_call_stack, 222 LangOpts.Sanitize.has(SanitizerKind::ShadowCallStack)) 223FEATURE(tls, PP.getTargetInfo().isTLSSupported()) 224FEATURE(underlying_type, LangOpts.CPlusPlus) 225 226// C11 features supported by other languages as extensions. 227EXTENSION(c_alignas, true) 228EXTENSION(c_alignof, true) 229EXTENSION(c_atomic, true) 230EXTENSION(c_generic_selections, true) 231EXTENSION(c_static_assert, true) 232EXTENSION(c_thread_local, PP.getTargetInfo().isTLSSupported()) 233// C++11 features supported by other languages as extensions. 234EXTENSION(cxx_atomic, LangOpts.CPlusPlus) 235EXTENSION(cxx_deleted_functions, LangOpts.CPlusPlus) 236EXTENSION(cxx_explicit_conversions, LangOpts.CPlusPlus) 237EXTENSION(cxx_inline_namespaces, LangOpts.CPlusPlus) 238EXTENSION(cxx_local_type_template_args, LangOpts.CPlusPlus) 239EXTENSION(cxx_nonstatic_member_init, LangOpts.CPlusPlus) 240EXTENSION(cxx_override_control, LangOpts.CPlusPlus) 241EXTENSION(cxx_range_for, LangOpts.CPlusPlus) 242EXTENSION(cxx_reference_qualified_functions, LangOpts.CPlusPlus) 243EXTENSION(cxx_rvalue_references, LangOpts.CPlusPlus) 244EXTENSION(cxx_variadic_templates, LangOpts.CPlusPlus) 245EXTENSION(cxx_fixed_enum, true) 246// C++14 features supported by other languages as extensions. 247EXTENSION(cxx_binary_literals, true) 248EXTENSION(cxx_init_captures, LangOpts.CPlusPlus11) 249EXTENSION(cxx_variable_templates, LangOpts.CPlusPlus) 250// Miscellaneous language extensions 251EXTENSION(overloadable_unmarked, true) 252EXTENSION(pragma_clang_attribute_namespaces, true) 253EXTENSION(pragma_clang_attribute_external_declaration, true) 254EXTENSION(gnu_asm, LangOpts.GNUAsm) 255 256#undef EXTENSION 257#undef FEATURE 258