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DiagnosticSemaKinds.td
10908 lines (10396 loc) · 548 KB
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DiagnosticSemaKinds.td
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//==--- DiagnosticSemaKinds.td - libsema diagnostics ----------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Semantic Analysis
//===----------------------------------------------------------------------===//
let Component = "Sema" in {
let CategoryName = "Semantic Issue" in {
def note_previous_decl : Note<"%0 declared here">;
def note_entity_declared_at : Note<"%0 declared here">;
def note_callee_decl : Note<"%0 declared here">;
def note_defined_here : Note<"%0 defined here">;
// For loop analysis
def warn_variables_not_in_loop_body : Warning<
"variable%select{s| %1|s %1 and %2|s %1, %2, and %3|s %1, %2, %3, and %4}0 "
"used in loop condition not modified in loop body">,
InGroup<ForLoopAnalysis>, DefaultIgnore;
def warn_redundant_loop_iteration : Warning<
"variable %0 is %select{decremented|incremented}1 both in the loop header "
"and in the loop body">,
InGroup<ForLoopAnalysis>, DefaultIgnore;
def note_loop_iteration_here : Note<"%select{decremented|incremented}0 here">;
def warn_duplicate_enum_values : Warning<
"element %0 has been implicitly assigned %1 which another element has "
"been assigned">, InGroup<DiagGroup<"duplicate-enum">>, DefaultIgnore;
def note_duplicate_element : Note<"element %0 also has value %1">;
// Absolute value functions
def warn_unsigned_abs : Warning<
"taking the absolute value of unsigned type %0 has no effect">,
InGroup<AbsoluteValue>;
def note_remove_abs : Note<
"remove the call to '%0' since unsigned values cannot be negative">;
def warn_abs_too_small : Warning<
"absolute value function %0 given an argument of type %1 but has parameter "
"of type %2 which may cause truncation of value">, InGroup<AbsoluteValue>;
def warn_wrong_absolute_value_type : Warning<
"using %select{integer|floating point|complex}1 absolute value function %0 "
"when argument is of %select{integer|floating point|complex}2 type">,
InGroup<AbsoluteValue>;
def note_replace_abs_function : Note<"use function '%0' instead">;
def warn_pointer_abs : Warning<
"taking the absolute value of %select{pointer|function|array}0 type %1 is suspicious">,
InGroup<AbsoluteValue>;
def warn_max_unsigned_zero : Warning<
"taking the max of "
"%select{a value and unsigned zero|unsigned zero and a value}0 "
"is always equal to the other value">,
InGroup<MaxUnsignedZero>;
def note_remove_max_call : Note<
"remove call to max function and unsigned zero argument">;
def warn_infinite_recursive_function : Warning<
"all paths through this function will call itself">,
InGroup<InfiniteRecursion>, DefaultIgnore;
def warn_comma_operator : Warning<"possible misuse of comma operator here">,
InGroup<DiagGroup<"comma">>, DefaultIgnore;
def note_cast_to_void : Note<"cast expression to void to silence warning">;
// Constant expressions
def err_expr_not_ice : Error<
"expression is not an %select{integer|integral}0 constant expression">;
def ext_expr_not_ice : Extension<
"expression is not an %select{integer|integral}0 constant expression; "
"folding it to a constant is a GNU extension">, InGroup<GNUFoldingConstant>;
def err_typecheck_converted_constant_expression : Error<
"value of type %0 is not implicitly convertible to %1">;
def err_typecheck_converted_constant_expression_disallowed : Error<
"conversion from %0 to %1 is not allowed in a converted constant expression">;
def err_typecheck_converted_constant_expression_indirect : Error<
"conversion from %0 to %1 in converted constant expression would "
"bind reference to a temporary">;
def err_expr_not_cce : Error<
"%select{case value|enumerator value|non-type template argument|"
"array size|constexpr if condition|explicit specifier argument}0 "
"is not a constant expression">;
def ext_cce_narrowing : ExtWarn<
"%select{case value|enumerator value|non-type template argument|"
"array size|constexpr if condition|explicit specifier argument}0 "
"%select{cannot be narrowed from type %2 to %3|"
"evaluates to %2, which cannot be narrowed to type %3}1">,
InGroup<CXX11Narrowing>, DefaultError, SFINAEFailure;
def err_ice_not_integral : Error<
"integral constant expression must have integral or unscoped enumeration "
"type, not %0">;
def err_ice_incomplete_type : Error<
"integral constant expression has incomplete class type %0">;
def err_ice_explicit_conversion : Error<
"integral constant expression requires explicit conversion from %0 to %1">;
def note_ice_conversion_here : Note<
"conversion to %select{integral|enumeration}0 type %1 declared here">;
def err_ice_ambiguous_conversion : Error<
"ambiguous conversion from type %0 to an integral or unscoped "
"enumeration type">;
def err_ice_too_large : Error<
"integer constant expression evaluates to value %0 that cannot be "
"represented in a %1-bit %select{signed|unsigned}2 integer type">;
def err_expr_not_string_literal : Error<"expression is not a string literal">;
// Semantic analysis of constant literals.
def ext_predef_outside_function : Warning<
"predefined identifier is only valid inside function">,
InGroup<DiagGroup<"predefined-identifier-outside-function">>;
def warn_float_overflow : Warning<
"magnitude of floating-point constant too large for type %0; maximum is %1">,
InGroup<LiteralRange>;
def warn_float_underflow : Warning<
"magnitude of floating-point constant too small for type %0; minimum is %1">,
InGroup<LiteralRange>;
def warn_double_const_requires_fp64 : Warning<
"double precision constant requires cl_khr_fp64, casting to single precision">;
def err_half_const_requires_fp16 : Error<
"half precision constant requires cl_khr_fp16">;
// C99 variable-length arrays
def ext_vla : Extension<"variable length arrays are a C99 feature">,
InGroup<VLAExtension>;
def warn_vla_used : Warning<"variable length array used">,
InGroup<VLA>, DefaultIgnore;
def err_vla_in_sfinae : Error<
"variable length array cannot be formed during template argument deduction">;
def err_array_star_in_function_definition : Error<
"variable length array must be bound in function definition">;
def err_vla_decl_in_file_scope : Error<
"variable length array declaration not allowed at file scope">;
def err_vla_decl_has_static_storage : Error<
"variable length array declaration cannot have 'static' storage duration">;
def err_vla_decl_has_extern_linkage : Error<
"variable length array declaration cannot have 'extern' linkage">;
def ext_vla_folded_to_constant : Extension<
"variable length array folded to constant array as an extension">, InGroup<GNUFoldingConstant>;
def err_vla_unsupported : Error<
"variable length arrays are not supported for the current target">;
def note_vla_unsupported : Note<
"variable length arrays are not supported for the current target">;
// C99 variably modified types
def err_variably_modified_template_arg : Error<
"variably modified type %0 cannot be used as a template argument">;
def err_variably_modified_nontype_template_param : Error<
"non-type template parameter of variably modified type %0">;
def err_variably_modified_new_type : Error<
"'new' cannot allocate object of variably modified type %0">;
// C99 Designated Initializers
def ext_designated_init : Extension<
"designated initializers are a C99 feature">, InGroup<C99Designator>;
def err_array_designator_negative : Error<
"array designator value '%0' is negative">;
def err_array_designator_empty_range : Error<
"array designator range [%0, %1] is empty">;
def err_array_designator_non_array : Error<
"array designator cannot initialize non-array type %0">;
def err_array_designator_too_large : Error<
"array designator index (%0) exceeds array bounds (%1)">;
def err_field_designator_non_aggr : Error<
"field designator cannot initialize a "
"%select{non-struct, non-union|non-class}0 type %1">;
def err_field_designator_unknown : Error<
"field designator %0 does not refer to any field in type %1">;
def err_field_designator_nonfield : Error<
"field designator %0 does not refer to a non-static data member">;
def note_field_designator_found : Note<"field designator refers here">;
def err_designator_for_scalar_or_sizeless_init : Error<
"designator in initializer for %select{scalar|indivisible sizeless}0 "
"type %1">;
def warn_initializer_overrides : Warning<
"initializer %select{partially |}0overrides prior initialization of "
"this subobject">, InGroup<InitializerOverrides>;
def ext_initializer_overrides : ExtWarn<warn_initializer_overrides.Text>,
InGroup<InitializerOverrides>, SFINAEFailure;
def err_initializer_overrides_destructed : Error<
"initializer would partially override prior initialization of object of "
"type %1 with non-trivial destruction">;
def note_previous_initializer : Note<
"previous initialization %select{|with side effects }0is here"
"%select{| (side effects will not occur at run time)}0">;
def err_designator_into_flexible_array_member : Error<
"designator into flexible array member subobject">;
def note_flexible_array_member : Note<
"initialized flexible array member %0 is here">;
def ext_flexible_array_init : Extension<
"flexible array initialization is a GNU extension">, InGroup<GNUFlexibleArrayInitializer>;
// C++20 designated initializers
def ext_cxx_designated_init : Extension<
"designated initializers are a C++20 extension">, InGroup<CXX20Designator>;
def warn_cxx17_compat_designated_init : Warning<
"designated initializers are incompatible with C++ standards before C++20">,
InGroup<CXXPre20CompatPedantic>, DefaultIgnore;
def ext_designated_init_mixed : ExtWarn<
"mixture of designated and non-designated initializers in the same "
"initializer list is a C99 extension">, InGroup<C99Designator>;
def note_designated_init_mixed : Note<
"first non-designated initializer is here">;
def ext_designated_init_array : ExtWarn<
"array designators are a C99 extension">, InGroup<C99Designator>;
def ext_designated_init_nested : ExtWarn<
"nested designators are a C99 extension">, InGroup<C99Designator>;
def ext_designated_init_reordered : ExtWarn<
"ISO C++ requires field designators to be specified in declaration order; "
"field %1 will be initialized after field %0">, InGroup<ReorderInitList>,
SFINAEFailure;
def note_previous_field_init : Note<
"previous initialization for field %0 is here">;
// Declarations.
def ext_plain_complex : ExtWarn<
"plain '_Complex' requires a type specifier; assuming '_Complex double'">;
def ext_imaginary_constant : Extension<
"imaginary constants are a GNU extension">, InGroup<GNUImaginaryConstant>;
def ext_integer_complex : Extension<
"complex integer types are a GNU extension">, InGroup<GNUComplexInteger>;
def err_invalid_saturation_spec : Error<"'_Sat' specifier is only valid on "
"'_Fract' or '_Accum', not '%0'">;
def err_invalid_sign_spec : Error<"'%0' cannot be signed or unsigned">;
def err_invalid_width_spec : Error<
"'%select{|short|long|long long}0 %1' is invalid">;
def err_invalid_complex_spec : Error<"'_Complex %0' is invalid">;
def ext_auto_type_specifier : ExtWarn<
"'auto' type specifier is a C++11 extension">, InGroup<CXX11>;
def warn_auto_storage_class : Warning<
"'auto' storage class specifier is redundant and incompatible with C++11">,
InGroup<CXX11Compat>, DefaultIgnore;
def warn_deprecated_register : Warning<
"'register' storage class specifier is deprecated "
"and incompatible with C++17">, InGroup<DeprecatedRegister>;
def ext_register_storage_class : ExtWarn<
"ISO C++17 does not allow 'register' storage class specifier">,
DefaultError, InGroup<Register>;
def err_invalid_decl_spec_combination : Error<
"cannot combine with previous '%0' declaration specifier">;
def err_invalid_vector_decl_spec_combination : Error<
"cannot combine with previous '%0' declaration specifier. "
"'__vector' must be first">;
def err_invalid_pixel_decl_spec_combination : Error<
"'__pixel' must be preceded by '__vector'. "
"'%0' declaration specifier not allowed here">;
def err_invalid_vector_bool_decl_spec : Error<
"cannot use '%0' with '__vector bool'">;
def err_invalid_vector_long_decl_spec : Error<
"cannot use 'long' with '__vector'">;
def err_invalid_vector_float_decl_spec : Error<
"cannot use 'float' with '__vector'">;
def err_invalid_vector_double_decl_spec : Error <
"use of 'double' with '__vector' requires VSX support to be enabled "
"(available on POWER7 or later)">;
def err_invalid_vector_bool_int128_decl_spec : Error <
"use of '__int128' with '__vector bool' requires VSX support enabled (on "
"POWER10 or later)">;
def err_invalid_vector_long_long_decl_spec : Error <
"use of 'long long' with '__vector bool' requires VSX support (available on "
"POWER7 or later) or extended Altivec support (available on POWER8 or later) "
"to be enabled">;
def err_invalid_vector_long_double_decl_spec : Error<
"cannot use 'long double' with '__vector'">;
def warn_vector_long_decl_spec_combination : Warning<
"Use of 'long' with '__vector' is deprecated">, InGroup<Deprecated>;
def err_redeclaration_different_type : Error<
"redeclaration of %0 with a different type%diff{: $ vs $|}1,2">;
def err_bad_variable_name : Error<
"%0 cannot be the name of a variable or data member">;
def err_bad_parameter_name : Error<
"%0 cannot be the name of a parameter">;
def err_bad_parameter_name_template_id : Error<
"parameter name cannot have template arguments">;
def ext_parameter_name_omitted_c2x : ExtWarn<
"omitting the parameter name in a function definition is a C2x extension">,
InGroup<C2x>;
def err_anyx86_interrupt_attribute : Error<
"%select{x86|x86-64}0 'interrupt' attribute only applies to functions that "
"have %select{a 'void' return type|"
"only a pointer parameter optionally followed by an integer parameter|"
"a pointer as the first parameter|a %2 type as the second parameter}1">;
def err_anyx86_interrupt_called : Error<
"interrupt service routine cannot be called directly">;
def warn_arm_interrupt_calling_convention : Warning<
"call to function without interrupt attribute could clobber interruptee's VFP registers">,
InGroup<Extra>;
def warn_interrupt_attribute_invalid : Warning<
"%select{MIPS|MSP430|RISC-V}0 'interrupt' attribute only applies to "
"functions that have %select{no parameters|a 'void' return type}1">,
InGroup<IgnoredAttributes>;
def warn_riscv_repeated_interrupt_attribute : Warning<
"repeated RISC-V 'interrupt' attribute">, InGroup<IgnoredAttributes>;
def note_riscv_repeated_interrupt_attribute : Note<
"repeated RISC-V 'interrupt' attribute is here">;
def warn_unused_parameter : Warning<"unused parameter %0">,
InGroup<UnusedParameter>, DefaultIgnore;
def warn_unused_variable : Warning<"unused variable %0">,
InGroup<UnusedVariable>, DefaultIgnore;
def warn_unused_local_typedef : Warning<
"unused %select{typedef|type alias}0 %1">,
InGroup<UnusedLocalTypedef>, DefaultIgnore;
def warn_unused_property_backing_ivar :
Warning<"ivar %0 which backs the property is not "
"referenced in this property's accessor">,
InGroup<UnusedPropertyIvar>, DefaultIgnore;
def warn_unused_const_variable : Warning<"unused variable %0">,
InGroup<UnusedConstVariable>, DefaultIgnore;
def warn_unused_exception_param : Warning<"unused exception parameter %0">,
InGroup<UnusedExceptionParameter>, DefaultIgnore;
def warn_decl_in_param_list : Warning<
"declaration of %0 will not be visible outside of this function">,
InGroup<Visibility>;
def warn_redefinition_in_param_list : Warning<
"redefinition of %0 will not be visible outside of this function">,
InGroup<Visibility>;
def warn_empty_parens_are_function_decl : Warning<
"empty parentheses interpreted as a function declaration">,
InGroup<VexingParse>;
def warn_parens_disambiguated_as_function_declaration : Warning<
"parentheses were disambiguated as a function declaration">,
InGroup<VexingParse>;
def warn_parens_disambiguated_as_variable_declaration : Warning<
"parentheses were disambiguated as redundant parentheses around declaration "
"of variable named %0">, InGroup<VexingParse>;
def warn_redundant_parens_around_declarator : Warning<
"redundant parentheses surrounding declarator">,
InGroup<DiagGroup<"redundant-parens">>, DefaultIgnore;
def note_additional_parens_for_variable_declaration : Note<
"add a pair of parentheses to declare a variable">;
def note_raii_guard_add_name : Note<
"add a variable name to declare a %0 initialized with %1">;
def note_function_style_cast_add_parentheses : Note<
"add enclosing parentheses to perform a function-style cast">;
def note_remove_parens_for_variable_declaration : Note<
"remove parentheses to silence this warning">;
def note_empty_parens_function_call : Note<
"change this ',' to a ';' to call %0">;
def note_empty_parens_default_ctor : Note<
"remove parentheses to declare a variable">;
def note_empty_parens_zero_initialize : Note<
"replace parentheses with an initializer to declare a variable">;
def warn_unused_function : Warning<"unused function %0">,
InGroup<UnusedFunction>, DefaultIgnore;
def warn_unused_template : Warning<"unused %select{function|variable}0 template %1">,
InGroup<UnusedTemplate>, DefaultIgnore;
def warn_unused_member_function : Warning<"unused member function %0">,
InGroup<UnusedMemberFunction>, DefaultIgnore;
def warn_used_but_marked_unused: Warning<"%0 was marked unused but was used">,
InGroup<UsedButMarkedUnused>, DefaultIgnore;
def warn_unneeded_internal_decl : Warning<
"%select{function|variable}0 %1 is not needed and will not be emitted">,
InGroup<UnneededInternalDecl>, DefaultIgnore;
def warn_unneeded_static_internal_decl : Warning<
"'static' function %0 declared in header file "
"should be declared 'static inline'">,
InGroup<UnneededInternalDecl>, DefaultIgnore;
def warn_unneeded_member_function : Warning<
"member function %0 is not needed and will not be emitted">,
InGroup<UnneededMemberFunction>, DefaultIgnore;
def warn_unused_private_field: Warning<"private field %0 is not used">,
InGroup<UnusedPrivateField>, DefaultIgnore;
def warn_unused_lambda_capture: Warning<"lambda capture %0 is not "
"%select{used|required to be captured for this use}1">,
InGroup<UnusedLambdaCapture>, DefaultIgnore;
def warn_parameter_size: Warning<
"%0 is a large (%1 bytes) pass-by-value argument; "
"pass it by reference instead ?">, InGroup<LargeByValueCopy>;
def warn_return_value_size: Warning<
"return value of %0 is a large (%1 bytes) pass-by-value object; "
"pass it by reference instead ?">, InGroup<LargeByValueCopy>;
def warn_return_value_udt: Warning<
"%0 has C-linkage specified, but returns user-defined type %1 which is "
"incompatible with C">, InGroup<ReturnTypeCLinkage>;
def warn_return_value_udt_incomplete: Warning<
"%0 has C-linkage specified, but returns incomplete type %1 which could be "
"incompatible with C">, InGroup<ReturnTypeCLinkage>;
def warn_implicit_function_decl : Warning<
"implicit declaration of function %0">,
InGroup<ImplicitFunctionDeclare>, DefaultIgnore;
def ext_implicit_function_decl : ExtWarn<
"implicit declaration of function %0 is invalid in C99">,
InGroup<ImplicitFunctionDeclare>;
def note_function_suggestion : Note<"did you mean %0?">;
def err_ellipsis_first_param : Error<
"ISO C requires a named parameter before '...'">;
def err_declarator_need_ident : Error<"declarator requires an identifier">;
def err_language_linkage_spec_unknown : Error<"unknown linkage language">;
def err_language_linkage_spec_not_ascii : Error<
"string literal in language linkage specifier cannot have an "
"encoding-prefix">;
def ext_use_out_of_scope_declaration : ExtWarn<
"use of out-of-scope declaration of %0%select{| whose type is not "
"compatible with that of an implicit declaration}1">,
InGroup<DiagGroup<"out-of-scope-function">>;
def err_inline_non_function : Error<
"'inline' can only appear on functions%select{| and non-local variables}0">;
def err_noreturn_non_function : Error<
"'_Noreturn' can only appear on functions">;
def warn_qual_return_type : Warning<
"'%0' type qualifier%s1 on return type %plural{1:has|:have}1 no effect">,
InGroup<IgnoredQualifiers>, DefaultIgnore;
def warn_deprecated_redundant_constexpr_static_def : Warning<
"out-of-line definition of constexpr static data member is redundant "
"in C++17 and is deprecated">,
InGroup<Deprecated>, DefaultIgnore;
def warn_decl_shadow :
Warning<"declaration shadows a %select{"
"local variable|"
"variable in %2|"
"static data member of %2|"
"field of %2|"
"typedef in %2|"
"type alias in %2}1">,
InGroup<Shadow>, DefaultIgnore;
def warn_decl_shadow_uncaptured_local :
Warning<warn_decl_shadow.Text>,
InGroup<ShadowUncapturedLocal>, DefaultIgnore;
def warn_ctor_parm_shadows_field:
Warning<"constructor parameter %0 shadows the field %1 of %2">,
InGroup<ShadowFieldInConstructor>, DefaultIgnore;
def warn_modifying_shadowing_decl :
Warning<"modifying constructor parameter %0 that shadows a "
"field of %1">,
InGroup<ShadowFieldInConstructorModified>, DefaultIgnore;
// C++ decomposition declarations
def err_decomp_decl_context : Error<
"decomposition declaration not permitted in this context">;
def warn_cxx14_compat_decomp_decl : Warning<
"decomposition declarations are incompatible with "
"C++ standards before C++17">, DefaultIgnore, InGroup<CXXPre17Compat>;
def ext_decomp_decl : ExtWarn<
"decomposition declarations are a C++17 extension">, InGroup<CXX17>;
def ext_decomp_decl_cond : ExtWarn<
"ISO C++17 does not permit structured binding declaration in a condition">,
InGroup<DiagGroup<"binding-in-condition">>;
def err_decomp_decl_spec : Error<
"decomposition declaration cannot be declared "
"%plural{1:'%1'|:with '%1' specifiers}0">;
def ext_decomp_decl_spec : ExtWarn<
"decomposition declaration declared "
"%plural{1:'%1'|:with '%1' specifiers}0 is a C++20 extension">,
InGroup<CXX20>;
def warn_cxx17_compat_decomp_decl_spec : Warning<
"decomposition declaration declared "
"%plural{1:'%1'|:with '%1' specifiers}0 "
"is incompatible with C++ standards before C++20">,
InGroup<CXXPre20Compat>, DefaultIgnore;
def err_decomp_decl_type : Error<
"decomposition declaration cannot be declared with type %0; "
"declared type must be 'auto' or reference to 'auto'">;
def err_decomp_decl_parens : Error<
"decomposition declaration cannot be declared with parentheses">;
def err_decomp_decl_template : Error<
"decomposition declaration template not supported">;
def err_decomp_decl_not_alone : Error<
"decomposition declaration must be the only declaration in its group">;
def err_decomp_decl_requires_init : Error<
"decomposition declaration %0 requires an initializer">;
def err_decomp_decl_wrong_number_bindings : Error<
"type %0 decomposes into %2 elements, but %select{only |}3%1 "
"names were provided">;
def err_decomp_decl_unbindable_type : Error<
"cannot decompose %select{union|non-class, non-array}1 type %2">;
def err_decomp_decl_multiple_bases_with_members : Error<
"cannot decompose class type %1: "
"%select{its base classes %2 and|both it and its base class}0 %3 "
"have non-static data members">;
def err_decomp_decl_ambiguous_base : Error<
"cannot decompose members of ambiguous base class %1 of %0:%2">;
def err_decomp_decl_inaccessible_base : Error<
"cannot decompose members of inaccessible base class %1 of %0">,
AccessControl;
def err_decomp_decl_inaccessible_field : Error<
"cannot decompose %select{private|protected}0 member %1 of %3">,
AccessControl;
def err_decomp_decl_anon_union_member : Error<
"cannot decompose class type %0 because it has an anonymous "
"%select{struct|union}1 member">;
def err_decomp_decl_std_tuple_element_not_specialized : Error<
"cannot decompose this type; 'std::tuple_element<%0>::type' "
"does not name a type">;
def err_decomp_decl_std_tuple_size_not_constant : Error<
"cannot decompose this type; 'std::tuple_size<%0>::value' "
"is not a valid integral constant expression">;
def note_in_binding_decl_init : Note<
"in implicit initialization of binding declaration %0">;
def err_std_type_trait_not_class_template : Error<
"unsupported standard library implementation: "
"'std::%0' is not a class template">;
// C++ using declarations
def err_using_requires_qualname : Error<
"using declaration requires a qualified name">;
def err_using_typename_non_type : Error<
"'typename' keyword used on a non-type">;
def err_using_dependent_value_is_type : Error<
"dependent using declaration resolved to type without 'typename'">;
def err_using_decl_nested_name_specifier_is_not_class : Error<
"using declaration in class refers into '%0', which is not a class">;
def err_using_decl_nested_name_specifier_is_current_class : Error<
"using declaration refers to its own class">;
def err_using_decl_nested_name_specifier_is_not_base_class : Error<
"using declaration refers into '%0', which is not a base class of %1">;
def err_using_decl_constructor_not_in_direct_base : Error<
"%0 is not a direct base of %1, cannot inherit constructors">;
def err_using_decl_can_not_refer_to_class_member : Error<
"using declaration cannot refer to class member">;
def err_ambiguous_inherited_constructor : Error<
"constructor of %0 inherited from multiple base class subobjects">;
def note_ambiguous_inherited_constructor_using : Note<
"inherited from base class %0 here">;
def note_using_decl_class_member_workaround : Note<
"use %select{an alias declaration|a typedef declaration|a reference|"
"a const variable|a constexpr variable}0 instead">;
def err_using_decl_can_not_refer_to_namespace : Error<
"using declaration cannot refer to a namespace">;
def err_using_decl_can_not_refer_to_scoped_enum : Error<
"using declaration cannot refer to a scoped enumerator">;
def err_using_decl_constructor : Error<
"using declaration cannot refer to a constructor">;
def warn_cxx98_compat_using_decl_constructor : Warning<
"inheriting constructors are incompatible with C++98">,
InGroup<CXX98Compat>, DefaultIgnore;
def err_using_decl_destructor : Error<
"using declaration cannot refer to a destructor">;
def err_using_decl_template_id : Error<
"using declaration cannot refer to a template specialization">;
def note_using_decl_target : Note<"target of using declaration">;
def note_using_decl_conflict : Note<"conflicting declaration">;
def err_using_decl_redeclaration : Error<"redeclaration of using declaration">;
def err_using_decl_conflict : Error<
"target of using declaration conflicts with declaration already in scope">;
def err_using_decl_conflict_reverse : Error<
"declaration conflicts with target of using declaration already in scope">;
def note_using_decl : Note<"%select{|previous }0using declaration">;
def err_using_decl_redeclaration_expansion : Error<
"using declaration pack expansion at block scope produces multiple values">;
def warn_access_decl_deprecated : Warning<
"access declarations are deprecated; use using declarations instead">,
InGroup<Deprecated>;
def err_access_decl : Error<
"ISO C++11 does not allow access declarations; "
"use using declarations instead">;
def warn_deprecated_copy_operation : Warning<
"definition of implicit copy %select{constructor|assignment operator}1 "
"for %0 is deprecated because it has a user-declared copy "
"%select{assignment operator|constructor}1">,
InGroup<DeprecatedCopy>, DefaultIgnore;
def warn_deprecated_copy_dtor_operation : Warning<
"definition of implicit copy %select{constructor|assignment operator}1 "
"for %0 is deprecated because it has a user-declared destructor">,
InGroup<DeprecatedCopyDtor>, DefaultIgnore;
def warn_cxx17_compat_exception_spec_in_signature : Warning<
"mangled name of %0 will change in C++17 due to non-throwing exception "
"specification in function signature">, InGroup<CXX17CompatMangling>;
def warn_global_constructor : Warning<
"declaration requires a global constructor">,
InGroup<GlobalConstructors>, DefaultIgnore;
def warn_global_destructor : Warning<
"declaration requires a global destructor">,
InGroup<GlobalConstructors>, DefaultIgnore;
def warn_exit_time_destructor : Warning<
"declaration requires an exit-time destructor">,
InGroup<ExitTimeDestructors>, DefaultIgnore;
def err_invalid_thread : Error<
"'%0' is only allowed on variable declarations">;
def err_thread_non_global : Error<
"'%0' variables must have global storage">;
def err_thread_unsupported : Error<
"thread-local storage is not supported for the current target">;
// FIXME: Combine fallout warnings to just one warning.
def warn_maybe_falloff_nonvoid_function : Warning<
"non-void function does not return a value in all control paths">,
InGroup<ReturnType>;
def warn_falloff_nonvoid_function : Warning<
"non-void function does not return a value">,
InGroup<ReturnType>;
def err_maybe_falloff_nonvoid_block : Error<
"non-void block does not return a value in all control paths">;
def err_falloff_nonvoid_block : Error<
"non-void block does not return a value">;
def warn_maybe_falloff_nonvoid_coroutine : Warning<
"non-void coroutine does not return a value in all control paths">,
InGroup<ReturnType>;
def warn_falloff_nonvoid_coroutine : Warning<
"non-void coroutine does not return a value">,
InGroup<ReturnType>;
def warn_suggest_noreturn_function : Warning<
"%select{function|method}0 %1 could be declared with attribute 'noreturn'">,
InGroup<MissingNoreturn>, DefaultIgnore;
def warn_suggest_noreturn_block : Warning<
"block could be declared with attribute 'noreturn'">,
InGroup<MissingNoreturn>, DefaultIgnore;
// Unreachable code.
def warn_unreachable : Warning<
"code will never be executed">,
InGroup<UnreachableCode>, DefaultIgnore;
def warn_unreachable_break : Warning<
"'break' will never be executed">,
InGroup<UnreachableCodeBreak>, DefaultIgnore;
def warn_unreachable_return : Warning<
"'return' will never be executed">,
InGroup<UnreachableCodeReturn>, DefaultIgnore;
def warn_unreachable_loop_increment : Warning<
"loop will run at most once (loop increment never executed)">,
InGroup<UnreachableCodeLoopIncrement>, DefaultIgnore;
def note_unreachable_silence : Note<
"silence by adding parentheses to mark code as explicitly dead">;
/// Built-in functions.
def ext_implicit_lib_function_decl : ExtWarn<
"implicitly declaring library function '%0' with type %1">,
InGroup<ImplicitFunctionDeclare>;
def note_include_header_or_declare : Note<
"include the header <%0> or explicitly provide a declaration for '%1'">;
def note_previous_builtin_declaration : Note<"%0 is a builtin with type %1">;
def warn_implicit_decl_no_jmp_buf
: Warning<"declaration of built-in function '%0' requires the declaration"
" of the 'jmp_buf' type, commonly provided in the header <setjmp.h>.">,
InGroup<DiagGroup<"incomplete-setjmp-declaration">>;
def warn_implicit_decl_requires_sysheader : Warning<
"declaration of built-in function '%1' requires inclusion of the header <%0>">,
InGroup<BuiltinRequiresHeader>;
def warn_redecl_library_builtin : Warning<
"incompatible redeclaration of library function %0">,
InGroup<DiagGroup<"incompatible-library-redeclaration">>;
def err_builtin_definition : Error<"definition of builtin function %0">;
def err_builtin_redeclare : Error<"cannot redeclare builtin function %0">;
def err_arm_invalid_specialreg : Error<"invalid special register for builtin">;
def err_arm_invalid_coproc : Error<"coprocessor %0 must be configured as "
"%select{GCP|CDE}1">;
def err_invalid_cpu_supports : Error<"invalid cpu feature string for builtin">;
def err_invalid_cpu_is : Error<"invalid cpu name for builtin">;
def err_invalid_cpu_specific_dispatch_value : Error<
"invalid option '%0' for %select{cpu_specific|cpu_dispatch}1">;
def warn_builtin_unknown : Warning<"use of unknown builtin %0">,
InGroup<ImplicitFunctionDeclare>, DefaultError;
def warn_cstruct_memaccess : Warning<
"%select{destination for|source of|first operand of|second operand of}0 this "
"%1 call is a pointer to record %2 that is not trivial to "
"%select{primitive-default-initialize|primitive-copy}3">,
InGroup<NonTrivialMemaccess>;
def note_nontrivial_field : Note<
"field is non-trivial to %select{copy|default-initialize}0">;
def err_non_trivial_c_union_in_invalid_context : Error<
"cannot %select{"
"use type %1 for a function/method parameter|"
"use type %1 for function/method return|"
"default-initialize an object of type %1|"
"declare an automatic variable of type %1|"
"copy-initialize an object of type %1|"
"assign to a variable of type %1|"
"construct an automatic compound literal of type %1|"
"capture a variable of type %1|"
"cannot use volatile type %1 where it causes an lvalue-to-rvalue conversion"
"}3 "
"since it %select{contains|is}2 a union that is non-trivial to "
"%select{default-initialize|destruct|copy}0">;
def note_non_trivial_c_union : Note<
"%select{%2 has subobjects that are|%3 has type %2 that is}0 "
"non-trivial to %select{default-initialize|destruct|copy}1">;
def warn_dyn_class_memaccess : Warning<
"%select{destination for|source of|first operand of|second operand of}0 this "
"%1 call is a pointer to %select{|class containing a }2dynamic class %3; "
"vtable pointer will be %select{overwritten|copied|moved|compared}4">,
InGroup<DynamicClassMemaccess>;
def note_bad_memaccess_silence : Note<
"explicitly cast the pointer to silence this warning">;
def warn_sizeof_pointer_expr_memaccess : Warning<
"'%0' call operates on objects of type %1 while the size is based on a "
"different type %2">,
InGroup<SizeofPointerMemaccess>;
def warn_sizeof_pointer_expr_memaccess_note : Note<
"did you mean to %select{dereference the argument to 'sizeof' (and multiply "
"it by the number of elements)|remove the addressof in the argument to "
"'sizeof' (and multiply it by the number of elements)|provide an explicit "
"length}0?">;
def warn_sizeof_pointer_type_memaccess : Warning<
"argument to 'sizeof' in %0 call is the same pointer type %1 as the "
"%select{destination|source}2; expected %3 or an explicit length">,
InGroup<SizeofPointerMemaccess>;
def warn_strlcpycat_wrong_size : Warning<
"size argument in %0 call appears to be size of the source; "
"expected the size of the destination">,
InGroup<DiagGroup<"strlcpy-strlcat-size">>;
def note_strlcpycat_wrong_size : Note<
"change size argument to be the size of the destination">;
def warn_memsize_comparison : Warning<
"size argument in %0 call is a comparison">,
InGroup<DiagGroup<"memsize-comparison">>;
def note_memsize_comparison_paren : Note<
"did you mean to compare the result of %0 instead?">;
def note_memsize_comparison_cast_silence : Note<
"explicitly cast the argument to size_t to silence this warning">;
def warn_suspicious_sizeof_memset : Warning<
"%select{'size' argument to memset is '0'|"
"setting buffer to a 'sizeof' expression}0"
"; did you mean to transpose the last two arguments?">,
InGroup<MemsetTransposedArgs>;
def note_suspicious_sizeof_memset_silence : Note<
"%select{parenthesize the third argument|"
"cast the second argument to 'int'}0 to silence">;
def warn_suspicious_bzero_size : Warning<"'size' argument to bzero is '0'">,
InGroup<SuspiciousBzero>;
def note_suspicious_bzero_size_silence : Note<
"parenthesize the second argument to silence">;
def warn_strncat_large_size : Warning<
"the value of the size argument in 'strncat' is too large, might lead to a "
"buffer overflow">, InGroup<StrncatSize>;
def warn_strncat_src_size : Warning<"size argument in 'strncat' call appears "
"to be size of the source">, InGroup<StrncatSize>;
def warn_strncat_wrong_size : Warning<
"the value of the size argument to 'strncat' is wrong">, InGroup<StrncatSize>;
def note_strncat_wrong_size : Note<
"change the argument to be the free space in the destination buffer minus "
"the terminating null byte">;
def warn_assume_side_effects : Warning<
"the argument to %0 has side effects that will be discarded">,
InGroup<DiagGroup<"assume">>;
def warn_builtin_chk_overflow : Warning<
"'%0' will always overflow; destination buffer has size %1,"
" but size argument is %2">,
InGroup<DiagGroup<"builtin-memcpy-chk-size">>;
def warn_fortify_source_overflow
: Warning<warn_builtin_chk_overflow.Text>, InGroup<FortifySource>;
def warn_fortify_source_size_mismatch : Warning<
"'%0' size argument is too large; destination buffer has size %1,"
" but size argument is %2">, InGroup<FortifySource>;
def warn_fortify_source_format_overflow : Warning<
"'%0' will always overflow; destination buffer has size %1,"
" but format string expands to at least %2">,
InGroup<FortifySource>;
/// main()
// static main() is not an error in C, just in C++.
def warn_static_main : Warning<"'main' should not be declared static">,
InGroup<Main>;
def err_static_main : Error<"'main' is not allowed to be declared static">;
def err_inline_main : Error<"'main' is not allowed to be declared inline">;
def ext_variadic_main : ExtWarn<
"'main' is not allowed to be declared variadic">, InGroup<Main>;
def ext_noreturn_main : ExtWarn<
"'main' is not allowed to be declared _Noreturn">, InGroup<Main>;
def note_main_remove_noreturn : Note<"remove '_Noreturn'">;
def err_constexpr_main : Error<
"'main' is not allowed to be declared %select{constexpr|consteval}0">;
def err_deleted_main : Error<"'main' is not allowed to be deleted">;
def err_mainlike_template_decl : Error<"%0 cannot be a template">;
def err_main_returns_nonint : Error<"'main' must return 'int'">;
def ext_main_returns_nonint : ExtWarn<"return type of 'main' is not 'int'">,
InGroup<MainReturnType>;
def note_main_change_return_type : Note<"change return type to 'int'">;
def err_main_surplus_args : Error<"too many parameters (%0) for 'main': "
"must be 0, 2, or 3">;
def warn_main_one_arg : Warning<"only one parameter on 'main' declaration">,
InGroup<Main>;
def err_main_arg_wrong : Error<"%select{first|second|third|fourth}0 "
"parameter of 'main' (%select{argument count|argument array|environment|"
"platform-specific data}0) must be of type %1">;
def warn_main_returns_bool_literal : Warning<"bool literal returned from "
"'main'">, InGroup<Main>;
def err_main_global_variable :
Error<"main cannot be declared as global variable">;
def warn_main_redefined : Warning<"variable named 'main' with external linkage "
"has undefined behavior">, InGroup<Main>;
def ext_main_used : Extension<
"ISO C++ does not allow 'main' to be used by a program">, InGroup<Main>;
/// parser diagnostics
def ext_no_declarators : ExtWarn<"declaration does not declare anything">,
InGroup<MissingDeclarations>;
def err_no_declarators : Error<"declaration does not declare anything">;
def ext_typedef_without_a_name : ExtWarn<"typedef requires a name">,
InGroup<MissingDeclarations>;
def err_typedef_not_identifier : Error<"typedef name must be an identifier">;
def ext_non_c_like_anon_struct_in_typedef : ExtWarn<
"anonymous non-C-compatible type given name for linkage purposes "
"by %select{typedef|alias}0 declaration; "
"add a tag name here">, InGroup<DiagGroup<"non-c-typedef-for-linkage">>;
def err_non_c_like_anon_struct_in_typedef : Error<
"anonymous non-C-compatible type given name for linkage purposes "
"by %select{typedef|alias}0 declaration after its linkage was computed; "
"add a tag name here to establish linkage prior to definition">;
def err_typedef_changes_linkage : Error<
"unsupported: anonymous type given name for linkage purposes "
"by %select{typedef|alias}0 declaration after its linkage was computed; "
"add a tag name here to establish linkage prior to definition">;
def note_non_c_like_anon_struct : Note<
"type is not C-compatible due to this "
"%select{base class|default member initializer|lambda expression|"
"friend declaration|member declaration}0">;
def note_typedef_for_linkage_here : Note<
"type is given name %0 for linkage purposes by this "
"%select{typedef|alias}1 declaration">;
def err_statically_allocated_object : Error<
"interface type cannot be statically allocated">;
def err_object_cannot_be_passed_returned_by_value : Error<
"interface type %1 cannot be %select{returned|passed}0 by value"
"; did you forget * in %1?">;
def err_parameters_retval_cannot_have_fp16_type : Error<
"%select{parameters|function return value}0 cannot have __fp16 type; did you forget * ?">;
def err_opencl_half_load_store : Error<
"%select{loading directly from|assigning directly to}0 pointer to type %1 requires "
"cl_khr_fp16. Use vector data %select{load|store}0 builtin functions instead">;
def err_opencl_cast_to_half : Error<"casting to type %0 is not allowed">;
def err_opencl_half_declaration : Error<
"declaring variable of type %0 is not allowed">;
def err_opencl_invalid_param : Error<
"declaring function parameter of type %0 is not allowed%select{; did you forget * ?|}1">;
def err_opencl_invalid_return : Error<
"declaring function return value of type %0 is not allowed %select{; did you forget * ?|}1">;
def warn_enum_value_overflow : Warning<"overflow in enumeration value">;
def warn_pragma_options_align_reset_failed : Warning<
"#pragma options align=reset failed: %0">,
InGroup<IgnoredPragmas>;
def err_pragma_options_align_mac68k_target_unsupported : Error<
"mac68k alignment pragma is not supported on this target">;
def warn_pragma_pack_invalid_alignment : Warning<
"expected #pragma pack parameter to be '1', '2', '4', '8', or '16'">,
InGroup<IgnoredPragmas>;
def warn_pragma_pack_non_default_at_include : Warning<
"non-default #pragma pack value changes the alignment of struct or union "
"members in the included file">, InGroup<PragmaPackSuspiciousInclude>,
DefaultIgnore;
def warn_pragma_pack_modified_after_include : Warning<
"the current #pragma pack alignment value is modified in the included "
"file">, InGroup<PragmaPack>;
def warn_pragma_pack_no_pop_eof : Warning<"unterminated "
"'#pragma pack (push, ...)' at end of file">, InGroup<PragmaPack>;
def note_pragma_pack_here : Note<
"previous '#pragma pack' directive that modifies alignment is here">;
def note_pragma_pack_pop_instead_reset : Note<
"did you intend to use '#pragma pack (pop)' instead of '#pragma pack()'?">;
// Follow the Microsoft implementation.
def warn_pragma_pack_show : Warning<"value of #pragma pack(show) == %0">;
def warn_pragma_pack_pop_identifier_and_alignment : Warning<
"specifying both a name and alignment to 'pop' is undefined">;
def warn_pragma_pop_failed : Warning<"#pragma %0(pop, ...) failed: %1">,
InGroup<IgnoredPragmas>;
def err_pragma_fc_pp_scope : Error<
"'#pragma float_control push/pop' can only appear at file scope or namespace scope">;
def err_pragma_fc_noprecise_requires_nofenv : Error<
"'#pragma float_control(precise, off)' is illegal when fenv_access is enabled">;
def err_pragma_fc_except_requires_precise : Error<
"'#pragma float_control(except, on)' is illegal when precise is disabled">;
def err_pragma_fc_noprecise_requires_noexcept : Error<
"'#pragma float_control(precise, off)' is illegal when except is enabled">;
def err_pragma_fenv_requires_precise : Error<
"'#pragma STDC FENV_ACCESS ON' is illegal when precise is disabled">;
def warn_cxx_ms_struct :
Warning<"ms_struct may not produce Microsoft-compatible layouts for classes "
"with base classes or virtual functions">,
DefaultError, InGroup<IncompatibleMSStruct>;
def err_section_conflict : Error<"%0 causes a section type conflict with %1">;
def err_no_base_classes : Error<"invalid use of '__super', %0 has no base classes">;
def err_invalid_super_scope : Error<"invalid use of '__super', "
"this keyword can only be used inside class or member function scope">;
def err_super_in_lambda_unsupported : Error<
"use of '__super' inside a lambda is unsupported">;
def warn_pragma_unused_undeclared_var : Warning<
"undeclared variable %0 used as an argument for '#pragma unused'">,
InGroup<IgnoredPragmas>;
def warn_atl_uuid_deprecated : Warning<
"specifying 'uuid' as an ATL attribute is deprecated; use __declspec instead">,
InGroup<DeprecatedDeclarations>;
def warn_pragma_unused_expected_var_arg : Warning<
"only variables can be arguments to '#pragma unused'">,
InGroup<IgnoredPragmas>;
def err_pragma_push_visibility_mismatch : Error<
"#pragma visibility push with no matching #pragma visibility pop">;
def note_surrounding_namespace_ends_here : Note<
"surrounding namespace with visibility attribute ends here">;
def err_pragma_pop_visibility_mismatch : Error<
"#pragma visibility pop with no matching #pragma visibility push">;
def note_surrounding_namespace_starts_here : Note<
"surrounding namespace with visibility attribute starts here">;
def err_pragma_loop_invalid_argument_type : Error<
"invalid argument of type %0; expected an integer type">;
def err_pragma_loop_invalid_argument_value : Error<
"%select{invalid value '%0'; must be positive|value '%0' is too large}1">;
def err_pragma_loop_compatibility : Error<
"%select{incompatible|duplicate}0 directives '%1' and '%2'">;
def err_pragma_loop_precedes_nonloop : Error<
"expected a for, while, or do-while loop to follow '%0'">;
def err_pragma_attribute_matcher_subrule_contradicts_rule : Error<
"redundant attribute subject matcher sub-rule '%0'; '%1' already matches "
"those declarations">;
def err_pragma_attribute_matcher_negated_subrule_contradicts_subrule : Error<
"negated attribute subject matcher sub-rule '%0' contradicts sub-rule '%1'">;
def err_pragma_attribute_invalid_matchers : Error<
"attribute %0 can't be applied to %1">;
def err_pragma_attribute_stack_mismatch : Error<
"'#pragma clang attribute %select{%1.|}0pop' with no matching"
" '#pragma clang attribute %select{%1.|}0push'">;
def warn_pragma_attribute_unused : Warning<
"unused attribute %0 in '#pragma clang attribute push' region">,
InGroup<PragmaClangAttribute>;
def note_pragma_attribute_region_ends_here : Note<
"'#pragma clang attribute push' regions ends here">;
def err_pragma_attribute_no_pop_eof : Error<"unterminated "
"'#pragma clang attribute push' at end of file">;
def note_pragma_attribute_applied_decl_here : Note<
"when applied to this declaration">;
def err_pragma_attr_attr_no_push : Error<
"'#pragma clang attribute' attribute with no matching "
"'#pragma clang attribute push'">;
/// Objective-C parser diagnostics
def err_duplicate_class_def : Error<
"duplicate interface definition for class %0">;
def err_undef_superclass : Error<
"cannot find interface declaration for %0, superclass of %1">;
def err_forward_superclass : Error<
"attempting to use the forward class %0 as superclass of %1">;
def err_no_nsconstant_string_class : Error<
"cannot find interface declaration for %0">;
def err_recursive_superclass : Error<
"trying to recursively use %0 as superclass of %1">;
def err_conflicting_aliasing_type : Error<"conflicting types for alias %0">;
def warn_undef_interface : Warning<"cannot find interface declaration for %0">;
def warn_duplicate_protocol_def : Warning<
"duplicate protocol definition of %0 is ignored">,
InGroup<DiagGroup<"duplicate-protocol">>;
def err_protocol_has_circular_dependency : Error<
"protocol has circular dependency">;
def err_undeclared_protocol : Error<"cannot find protocol declaration for %0">;
def warn_undef_protocolref : Warning<"cannot find protocol definition for %0">;
def err_atprotocol_protocol : Error<
"@protocol is using a forward protocol declaration of %0">;
def warn_readonly_property : Warning<
"attribute 'readonly' of property %0 restricts attribute "
"'readwrite' of property inherited from %1">,
InGroup<PropertyAttr>;
def warn_property_attribute : Warning<
"'%1' attribute on property %0 does not match the property inherited from %2">,
InGroup<PropertyAttr>;
def warn_property_types_are_incompatible : Warning<
"property type %0 is incompatible with type %1 inherited from %2">,
InGroup<DiagGroup<"incompatible-property-type">>;
def warn_protocol_property_mismatch : Warning<
"property %select{of type %1|with attribute '%1'|without attribute '%1'|with "
"getter %1|with setter %1}0 was selected for synthesis">,
InGroup<DiagGroup<"protocol-property-synthesis-ambiguity">>;
def err_protocol_property_mismatch: Error<warn_protocol_property_mismatch.Text>;
def err_undef_interface : Error<"cannot find interface declaration for %0">;
def err_category_forward_interface : Error<
"cannot define %select{category|class extension}0 for undefined class %1">;
def err_class_extension_after_impl : Error<
"cannot declare class extension for %0 after class implementation">;
def note_implementation_declared : Note<
"class implementation is declared here">;
def note_while_in_implementation : Note<
"detected while default synthesizing properties in class implementation">;
def note_class_declared : Note<
"class is declared here">;
def note_receiver_class_declared : Note<
"receiver is instance of class declared here">;
def note_receiver_expr_here : Note<
"receiver expression is here">;
def note_receiver_is_id : Note<
"receiver is treated with 'id' type for purpose of method lookup">;
def note_suppressed_class_declare : Note<
"class with specified objc_requires_property_definitions attribute is declared here">;
def err_objc_root_class_subclass : Error<
"objc_root_class attribute may only be specified on a root class declaration">;
def err_restricted_superclass_mismatch : Error<
"cannot subclass a class that was declared with the "
"'objc_subclassing_restricted' attribute">;
def err_class_stub_subclassing_mismatch : Error<
"'objc_class_stub' attribute cannot be specified on a class that does not "
"have the 'objc_subclassing_restricted' attribute">;