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1 RUN: diagtool list-warnings > %t 2>&1
2 RUN: FileCheck --input-file=%t %s
3 
4 This test serves two purposes:
5 
6 (1) It documents all existing warnings that currently have no associated -W flag,
7     and ensures that the list never grows.
8 
9     If take an existing warning and add a flag, this test will fail.  To
10     fix this test, simply remove that warning from the list below.
11 
12 (2) It prevents us adding new warnings to Clang that have no -W flag.  All
13     new warnings should have -W flags.
14 
15     If you add a new warning without a flag, this test will fail.  To fix
16     this test, simply add a warning group to that warning.
17 
18 
19 The list of warnings below should NEVER grow.  It should gradually shrink to 0.
20 
21 CHECK: Warnings without flags (159):
22 CHECK-NEXT:   ext_delete_void_ptr_operand
23 CHECK-NEXT:   ext_enum_friend
24 CHECK-NEXT:   ext_expected_semi_decl_list
25 CHECK-NEXT:   ext_explicit_specialization_storage_class
26 CHECK-NEXT:   ext_implicit_lib_function_decl
27 CHECK-NEXT:   ext_missing_declspec
28 CHECK-NEXT:   ext_missing_whitespace_after_macro_name
29 CHECK-NEXT:   ext_new_paren_array_nonconst
30 CHECK-NEXT:   ext_plain_complex
31 CHECK-NEXT:   ext_pp_macro_redef
32 CHECK-NEXT:   ext_template_arg_extra_parens
33 CHECK-NEXT:   ext_typecheck_comparison_of_distinct_pointers
34 CHECK-NEXT:   ext_typecheck_comparison_of_distinct_pointers_nonstandard
35 CHECK-NEXT:   ext_typecheck_comparison_of_pointer_integer
36 CHECK-NEXT:   ext_typecheck_cond_incompatible_operands
37 CHECK-NEXT:   ext_typecheck_cond_incompatible_operands_nonstandard
38 CHECK-NEXT:   ext_typecheck_ordered_comparison_of_function_pointers
39 CHECK-NEXT:   ext_typecheck_ordered_comparison_of_pointer_integer
40 CHECK-NEXT:   ext_unknown_escape
41 CHECK-NEXT:   ext_using_undefined_std
42 CHECK-NEXT:   pp_include_next_absolute_path
43 CHECK-NEXT:   pp_include_next_in_primary
44 CHECK-NEXT:   pp_invalid_string_literal
45 CHECK-NEXT:   pp_out_of_date_dependency
46 CHECK-NEXT:   pp_poisoning_existing_macro
47 CHECK-NEXT:   pp_pragma_once_in_main_file
48 CHECK-NEXT:   pp_pragma_sysheader_in_main_file
49 CHECK-NEXT:   pp_undef_builtin_macro
50 CHECK-NEXT:   w_asm_qualifier_ignored
51 CHECK-NEXT:   warn_accessor_property_type_mismatch
52 CHECK-NEXT:   warn_anon_bitfield_width_exceeds_type_size
53 CHECK-NEXT:   warn_asm_label_on_auto_decl
54 CHECK-NEXT:   warn_bitfield_width_exceeds_type_size
55 CHECK-NEXT:   warn_bool_switch_condition
56 CHECK-NEXT:   warn_braces_around_scalar_init
57 CHECK-NEXT:   warn_c_kext
58 CHECK-NEXT:   warn_call_to_pure_virtual_member_function_from_ctor_dtor
59 CHECK-NEXT:   warn_call_wrong_number_of_arguments
60 CHECK-NEXT:   warn_case_empty_range
61 CHECK-NEXT:   warn_char_constant_too_large
62 CHECK-NEXT:   warn_cmdline_missing_macro_defs
63 CHECK-NEXT:   warn_collection_expr_type
64 CHECK-NEXT:   warn_conflicting_param_types
65 CHECK-NEXT:   warn_conflicting_ret_types
66 CHECK-NEXT:   warn_conflicting_variadic
67 CHECK-NEXT:   warn_conv_to_base_not_used
68 CHECK-NEXT:   warn_conv_to_self_not_used
69 CHECK-NEXT:   warn_conv_to_void_not_used
70 CHECK-NEXT:   warn_delete_array_type
71 CHECK-NEXT:   warn_double_const_requires_fp64
72 CHECK-NEXT:   warn_drv_assuming_mfloat_abi_is
73 CHECK-NEXT:   warn_drv_clang_unsupported
74 CHECK-NEXT:   warn_drv_not_using_clang_arch
75 CHECK-NEXT:   warn_drv_not_using_clang_cpp
76 CHECK-NEXT:   warn_drv_not_using_clang_cxx
77 CHECK-NEXT:   warn_drv_objc_gc_unsupported
78 CHECK-NEXT:   warn_drv_pch_not_first_include
79 CHECK-NEXT:   warn_dup_category_def
80 CHECK-NEXT:   warn_duplicate_protocol_def
81 CHECK-NEXT:   warn_enum_too_large
82 CHECK-NEXT:   warn_enum_value_overflow
83 CHECK-NEXT:   warn_enumerator_too_large
84 CHECK-NEXT:   warn_exception_caught_by_earlier_handler
85 CHECK-NEXT:   warn_excess_initializers
86 CHECK-NEXT:   warn_excess_initializers_in_char_array_initializer
87 CHECK-NEXT:   warn_expected_qualified_after_typename
88 CHECK-NEXT:   warn_extraneous_char_constant
89 CHECK-NEXT:   warn_fe_cc_log_diagnostics_failure
90 CHECK-NEXT:   warn_fe_cc_print_header_failure
91 CHECK-NEXT:   warn_fe_macro_contains_embedded_newline
92 CHECK-NEXT:   warn_file_asm_volatile
93 CHECK-NEXT:   warn_hex_escape_too_large
94 CHECK-NEXT:   warn_ignoring_ftabstop_value
95 CHECK-NEXT:   warn_implements_nscopying
96 CHECK-NEXT:   warn_incompatible_qualified_id
97 CHECK-NEXT:   warn_initializer_string_for_char_array_too_long
98 CHECK-NEXT:   warn_inline_namespace_reopened_noninline
99 CHECK-NEXT:   warn_integer_too_large
100 CHECK-NEXT:   warn_integer_too_large_for_signed
101 CHECK-NEXT:   warn_invalid_asm_cast_lvalue
102 CHECK-NEXT:   warn_many_braces_around_scalar_init
103 CHECK-NEXT:   warn_maynot_respond
104 CHECK-NEXT:   warn_member_extra_qualification
105 CHECK-NEXT:   warn_method_param_redefinition
106 CHECK-NEXT:   warn_mismatched_exception_spec
107 CHECK-NEXT:   warn_missing_case_for_condition
108 CHECK-NEXT:   warn_missing_dependent_template_keyword
109 CHECK-NEXT:   warn_missing_exception_specification
110 CHECK-NEXT:   warn_missing_whitespace_after_macro_name
111 CHECK-NEXT:   warn_multiple_method_decl
112 CHECK-NEXT:   warn_no_constructor_for_refconst
113 CHECK-NEXT:   warn_nonnull_pointers_only
114 CHECK-NEXT:   warn_not_compound_assign
115 CHECK-NEXT:   warn_objc_property_copy_missing_on_block
116 CHECK-NEXT:   warn_objc_protocol_qualifier_missing_id
117 CHECK-NEXT:   warn_octal_escape_too_large
118 CHECK-NEXT:   warn_odr_tag_type_inconsistent
119 CHECK-NEXT:   warn_on_superclass_use
120 CHECK-NEXT:   warn_param_default_argument_redefinition
121 CHECK-NEXT:   warn_partial_specs_not_deducible
122 CHECK-NEXT:   warn_pp_convert_lhs_to_positive
123 CHECK-NEXT:   warn_pp_convert_rhs_to_positive
124 CHECK-NEXT:   warn_pp_expr_overflow
125 CHECK-NEXT:   warn_pp_line_decimal
126 CHECK-NEXT:   warn_pragma_align_expected_equal
127 CHECK-NEXT:   warn_pragma_align_invalid_option
128 CHECK-NEXT:   warn_pragma_debug_unexpected_command
129 CHECK-NEXT:   warn_pragma_expected_colon
130 CHECK-NEXT:   warn_pragma_expected_enable_disable
131 CHECK-NEXT:   warn_pragma_expected_identifier
132 CHECK-NEXT:   warn_pragma_expected_lparen
133 CHECK-NEXT:   warn_pragma_expected_rparen
134 CHECK-NEXT:   warn_pragma_extra_tokens_at_eol
135 CHECK-NEXT:   warn_pragma_ms_struct
136 CHECK-NEXT:   warn_pragma_options_align_reset_failed
137 CHECK-NEXT:   warn_pragma_options_align_unsupported_option
138 CHECK-NEXT:   warn_pragma_options_expected_align
139 CHECK-NEXT:   warn_pragma_pack_invalid_action
140 CHECK-NEXT:   warn_pragma_pack_invalid_alignment
141 CHECK-NEXT:   warn_pragma_pack_malformed
142 CHECK-NEXT:   warn_pragma_pack_pop_failed
143 CHECK-NEXT:   warn_pragma_pack_pop_identifer_and_alignment
144 CHECK-NEXT:   warn_pragma_pack_show
145 CHECK-NEXT:   warn_pragma_pop_macro_no_push
146 CHECK-NEXT:   warn_pragma_unknown_extension
147 CHECK-NEXT:   warn_pragma_unused_expected_punc
148 CHECK-NEXT:   warn_pragma_unused_expected_var
149 CHECK-NEXT:   warn_pragma_unused_expected_var_arg
150 CHECK-NEXT:   warn_pragma_unused_undeclared_var
151 CHECK-NEXT:   warn_previous_alias_decl
152 CHECK-NEXT:   warn_printf_asterisk_missing_arg
153 CHECK-NEXT:   warn_property_attr_mismatch
154 CHECK-NEXT:   warn_property_attribute
155 CHECK-NEXT:   warn_property_getter_owning_mismatch
156 CHECK-NEXT:   warn_property_types_are_incompatible
157 CHECK-NEXT:   warn_readonly_property
158 CHECK-NEXT:   warn_redecl_library_builtin
159 CHECK-NEXT:   warn_redeclaration_without_attribute_prev_attribute_ignored
160 CHECK-NEXT:   warn_register_objc_catch_parm
161 CHECK-NEXT:   warn_related_result_type_compatibility_class
162 CHECK-NEXT:   warn_related_result_type_compatibility_protocol
163 CHECK-NEXT:   warn_second_parameter_of_va_start_not_last_named_argument
164 CHECK-NEXT:   warn_second_parameter_to_va_arg_never_compatible
165 CHECK-NEXT:   warn_standalone_specifier
166 CHECK-NEXT:   warn_static_inline_explicit_inst_ignored
167 CHECK-NEXT:   warn_static_non_static
168 CHECK-NEXT:   warn_template_export_unsupported
169 CHECK-NEXT:   warn_template_spec_extra_headers
170 CHECK-NEXT:   warn_tentative_incomplete_array
171 CHECK-NEXT:   warn_typecheck_function_qualifiers
172 CHECK-NEXT:   warn_unavailable_fwdclass_message
173 CHECK-NEXT:   warn_undef_interface
174 CHECK-NEXT:   warn_undef_interface_suggest
175 CHECK-NEXT:   warn_undef_protocolref
176 CHECK-NEXT:   warn_undefined_internal
177 CHECK-NEXT:   warn_unknown_method_family
178 CHECK-NEXT:   warn_use_out_of_scope_declaration
179 CHECK-NEXT:   warn_weak_identifier_undeclared
180 CHECK-NEXT:   warn_weak_import
181 
182 The list of warnings in -Wpedantic should NEVER grow.
183 
184 CHECK: Number in -Wpedantic (not covered by other -W flags): 38
185