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74c532053f
luau/tools/faillist.txt
Andy Friesen 74c532053f
Sync to upstream/release/604 (#1106) 
New Solver

* New algorithm for inferring the types of locals that have no
annotations. This
algorithm is very conservative by default, but is augmented with some
control
  flow awareness to handle most common scenarios.
* Fix bugs in type inference of tables
* Improve performance of by switching out standard C++ containers for
`DenseHashMap`
* Infrastructure to support clearer error messages in strict mode

Native Code Generation

* Fix a lowering issue with buffer.writeu8 and 0x80-0xff values: A
constant
  argument wasn't truncated to the target type range and that causes an
  assertion failure in `build.mov`.
* Store full lightuserdata value in loop iteration protocol lowering
* Add analysis to compute function bytecode distribution
* This includes a class to analyze the bytecode operator distribution
per
function and a CLI tool that produces a JSON report. See the new cmake
      target `Luau.Bytecode.CLI`

---------

Co-authored-by: Aaron Weiss <aaronweiss@roblox.com>
Co-authored-by: Alexander McCord <amccord@roblox.com>
Co-authored-by: Andy Friesen <afriesen@roblox.com>
Co-authored-by: Aviral Goel <agoel@roblox.com>
Co-authored-by: Lily Brown <lbrown@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
2023-11-17 10:46:18 -08:00

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AnnotationTests.two_type_params
AnnotationTests.typeof_expr
AnnotationTests.use_generic_type_alias
AstQuery.last_argument_function_call_type
AstQuery::getDocumentationSymbolAtPosition.class_method
AstQuery::getDocumentationSymbolAtPosition.overloaded_class_method
AstQuery::getDocumentationSymbolAtPosition.table_overloaded_function_prop
AutocompleteTest.anonymous_autofilled_generic_on_argument_type_pack_vararg
AutocompleteTest.anonymous_autofilled_generic_type_pack_vararg
AutocompleteTest.autocomplete_interpolated_string_as_singleton
AutocompleteTest.autocomplete_response_perf1
AutocompleteTest.autocomplete_string_singleton_equality
AutocompleteTest.autocomplete_string_singleton_escape
AutocompleteTest.autocomplete_string_singletons
AutocompleteTest.do_wrong_compatible_nonself_calls
AutocompleteTest.no_incompatible_self_calls_on_class
AutocompleteTest.string_singleton_in_if_statement
AutocompleteTest.suggest_external_module_type
AutocompleteTest.type_correct_expected_argument_type_pack_suggestion
AutocompleteTest.type_correct_expected_argument_type_suggestion
AutocompleteTest.type_correct_expected_argument_type_suggestion_optional
AutocompleteTest.type_correct_expected_argument_type_suggestion_self
AutocompleteTest.type_correct_expected_return_type_pack_suggestion
AutocompleteTest.type_correct_expected_return_type_suggestion
AutocompleteTest.type_correct_function_no_parenthesis
AutocompleteTest.type_correct_function_return_types
AutocompleteTest.type_correct_keywords
AutocompleteTest.type_correct_suggestion_for_overloads
AutocompleteTest.type_correct_suggestion_in_argument
BuiltinTests.aliased_string_format
BuiltinTests.assert_removes_falsy_types
BuiltinTests.assert_removes_falsy_types2
BuiltinTests.assert_removes_falsy_types_even_from_type_pack_tail_but_only_for_the_first_type
BuiltinTests.assert_returns_false_and_string_iff_it_knows_the_first_argument_cannot_be_truthy
BuiltinTests.bad_select_should_not_crash
BuiltinTests.coroutine_resume_anything_goes
BuiltinTests.debug_info_is_crazy
BuiltinTests.dont_add_definitions_to_persistent_types
BuiltinTests.global_singleton_types_are_sealed
BuiltinTests.gmatch_capture_types
BuiltinTests.gmatch_capture_types2
BuiltinTests.gmatch_capture_types_balanced_escaped_parens
BuiltinTests.gmatch_capture_types_default_capture
BuiltinTests.gmatch_capture_types_parens_in_sets_are_ignored
BuiltinTests.gmatch_capture_types_set_containing_lbracket
BuiltinTests.gmatch_definition
BuiltinTests.ipairs_iterator_should_infer_types_and_type_check
BuiltinTests.next_iterator_should_infer_types_and_type_check
BuiltinTests.os_time_takes_optional_date_table
BuiltinTests.pairs_iterator_should_infer_types_and_type_check
BuiltinTests.see_thru_select
BuiltinTests.see_thru_select_count
BuiltinTests.select_slightly_out_of_range
BuiltinTests.select_way_out_of_range
BuiltinTests.select_with_decimal_argument_is_rounded_down
BuiltinTests.select_with_variadic_typepack_tail_and_string_head
BuiltinTests.set_metatable_needs_arguments
BuiltinTests.setmetatable_should_not_mutate_persisted_types
BuiltinTests.sort
BuiltinTests.sort_with_bad_predicate
BuiltinTests.sort_with_predicate
BuiltinTests.string_format_arg_count_mismatch
BuiltinTests.string_format_as_method
BuiltinTests.string_format_correctly_ordered_types
BuiltinTests.string_format_report_all_type_errors_at_correct_positions
BuiltinTests.string_format_use_correct_argument2
BuiltinTests.string_match
BuiltinTests.table_concat_returns_string
BuiltinTests.table_dot_remove_optionally_returns_generic
BuiltinTests.table_freeze_is_generic
BuiltinTests.table_insert_correctly_infers_type_of_array_2_args_overload
BuiltinTests.table_insert_correctly_infers_type_of_array_3_args_overload
BuiltinTests.table_pack
BuiltinTests.table_pack_reduce
BuiltinTests.table_pack_variadic
BuiltinTests.tonumber_returns_optional_number_type
BuiltinTests.tonumber_returns_optional_number_type2
BuiltinTests.trivial_select
BuiltinTests.xpcall
ControlFlowAnalysis.do_assert_x
ControlFlowAnalysis.for_record_do_if_not_x_break
ControlFlowAnalysis.for_record_do_if_not_x_continue
ControlFlowAnalysis.if_not_x_break
ControlFlowAnalysis.if_not_x_break_elif_not_y_break
ControlFlowAnalysis.if_not_x_break_elif_not_y_continue
ControlFlowAnalysis.if_not_x_break_elif_not_y_fallthrough_elif_not_z_break
ControlFlowAnalysis.if_not_x_break_elif_rand_break_elif_not_y_break
ControlFlowAnalysis.if_not_x_break_elif_rand_break_elif_not_y_fallthrough
ControlFlowAnalysis.if_not_x_break_if_not_y_break
ControlFlowAnalysis.if_not_x_break_if_not_y_continue
ControlFlowAnalysis.if_not_x_continue
ControlFlowAnalysis.if_not_x_continue_elif_not_y_continue
ControlFlowAnalysis.if_not_x_continue_elif_not_y_fallthrough_elif_not_z_continue
ControlFlowAnalysis.if_not_x_continue_elif_not_y_throw_elif_not_z_fallthrough
ControlFlowAnalysis.if_not_x_continue_elif_rand_continue_elif_not_y_continue
ControlFlowAnalysis.if_not_x_continue_elif_rand_continue_elif_not_y_fallthrough
ControlFlowAnalysis.if_not_x_continue_if_not_y_continue
ControlFlowAnalysis.if_not_x_continue_if_not_y_throw
ControlFlowAnalysis.if_not_x_return_elif_not_y_break
ControlFlowAnalysis.if_not_x_return_elif_not_y_fallthrough_elif_not_z_break
ControlFlowAnalysis.if_not_x_then_assert_false
ControlFlowAnalysis.if_not_x_then_error
ControlFlowAnalysis.prototyping_and_visiting_alias_has_the_same_scope_breaking
ControlFlowAnalysis.prototyping_and_visiting_alias_has_the_same_scope_continuing
ControlFlowAnalysis.tagged_unions_breaking
ControlFlowAnalysis.tagged_unions_continuing
ControlFlowAnalysis.type_alias_does_not_leak_out_breaking
ControlFlowAnalysis.type_alias_does_not_leak_out_continuing
DefinitionTests.class_definition_function_prop
DefinitionTests.class_definition_indexer
DefinitionTests.class_definition_overload_metamethods
DefinitionTests.class_definition_string_props
DefinitionTests.declaring_generic_functions
DefinitionTests.definition_file_class_function_args
DefinitionTests.definition_file_classes
Differ.equal_generictp_cyclic
Differ.equal_table_A_B_C
Differ.equal_table_cyclic_diamonds_unraveled
Differ.equal_table_kind_A
Differ.equal_table_kind_B
Differ.equal_table_kind_C
Differ.equal_table_kind_D
Differ.equal_table_measuring_tapes
Differ.equal_table_two_cyclic_tables_are_not_different
Differ.equal_table_two_shifted_circles_are_not_different
Differ.generictp_normal
Differ.generictp_normal_2
Differ.left_cyclic_table_right_table_missing_property
Differ.left_cyclic_table_right_table_property_wrong
Differ.metatable_metamissing_left
Differ.metatable_metamissing_right
Differ.metatable_metanormal
Differ.negation
Differ.right_cyclic_table_left_table_missing_property
Differ.right_cyclic_table_left_table_property_wrong
Differ.table_left_circle_right_measuring_tape
FrontendTest.accumulate_cached_errors_in_consistent_order
FrontendTest.environments
FrontendTest.imported_table_modification_2
FrontendTest.it_should_be_safe_to_stringify_errors_when_full_type_graph_is_discarded
FrontendTest.nocheck_cycle_used_by_checked
FrontendTest.trace_requires_in_nonstrict_mode
GenericsTests.apply_type_function_nested_generics1
GenericsTests.apply_type_function_nested_generics2
GenericsTests.better_mismatch_error_messages
GenericsTests.bound_tables_do_not_clone_original_fields
GenericsTests.calling_self_generic_methods
GenericsTests.check_generic_function
GenericsTests.check_generic_local_function
GenericsTests.check_generic_typepack_function
GenericsTests.check_mutual_generic_functions
GenericsTests.check_nested_generic_function
GenericsTests.check_recursive_generic_function
GenericsTests.correctly_instantiate_polymorphic_member_functions
GenericsTests.do_not_always_instantiate_generic_intersection_types
GenericsTests.do_not_infer_generic_functions
GenericsTests.dont_substitute_bound_types
GenericsTests.error_detailed_function_mismatch_generic_pack
GenericsTests.error_detailed_function_mismatch_generic_types
GenericsTests.factories_of_generics
GenericsTests.function_arguments_can_be_polytypes
GenericsTests.generic_argument_count_too_few
GenericsTests.generic_argument_count_too_many
GenericsTests.generic_factories
GenericsTests.generic_functions_dont_cache_type_parameters
GenericsTests.generic_functions_in_types
GenericsTests.generic_type_pack_parentheses
GenericsTests.generic_type_pack_unification1
GenericsTests.generic_type_pack_unification2
GenericsTests.generic_type_pack_unification3
GenericsTests.higher_rank_polymorphism_should_not_accept_instantiated_arguments
GenericsTests.infer_generic_function
GenericsTests.infer_generic_function_function_argument
GenericsTests.infer_generic_function_function_argument_2
GenericsTests.infer_generic_function_function_argument_3
GenericsTests.infer_generic_function_function_argument_overloaded
GenericsTests.infer_generic_lib_function_function_argument
GenericsTests.infer_generic_local_function
GenericsTests.infer_generic_property
GenericsTests.infer_nested_generic_function
GenericsTests.inferred_local_vars_can_be_polytypes
GenericsTests.instantiated_function_argument_names
GenericsTests.local_vars_can_be_polytypes
GenericsTests.no_stack_overflow_from_quantifying
GenericsTests.properties_can_be_instantiated_polytypes
GenericsTests.properties_can_be_polytypes
GenericsTests.quantify_functions_even_if_they_have_an_explicit_generic
GenericsTests.rank_N_types_via_typeof
GenericsTests.self_recursive_instantiated_param
GenericsTests.type_parameters_can_be_polytypes
GenericsTests.typefuns_sharing_types
IntersectionTypes.argument_is_intersection
IntersectionTypes.error_detailed_intersection_all
IntersectionTypes.error_detailed_intersection_part
IntersectionTypes.fx_intersection_as_argument
IntersectionTypes.index_on_an_intersection_type_with_mixed_types
IntersectionTypes.index_on_an_intersection_type_with_one_part_missing_the_property
IntersectionTypes.index_on_an_intersection_type_with_one_property_of_type_any
IntersectionTypes.index_on_an_intersection_type_with_property_guaranteed_to_exist
IntersectionTypes.index_on_an_intersection_type_works_at_arbitrary_depth
IntersectionTypes.intersect_bool_and_false
IntersectionTypes.intersect_false_and_bool_and_false
IntersectionTypes.intersect_saturate_overloaded_functions
IntersectionTypes.intersection_of_tables
IntersectionTypes.intersection_of_tables_with_never_properties
IntersectionTypes.intersection_of_tables_with_top_properties
IntersectionTypes.less_greedy_unification_with_intersection_types
IntersectionTypes.overloaded_functions_mentioning_generic
IntersectionTypes.overloaded_functions_mentioning_generic_packs
IntersectionTypes.overloaded_functions_mentioning_generics
IntersectionTypes.overloaded_functions_returning_intersections
IntersectionTypes.overloadeded_functions_with_never_arguments
IntersectionTypes.overloadeded_functions_with_never_result
IntersectionTypes.overloadeded_functions_with_overlapping_results_and_variadics
IntersectionTypes.overloadeded_functions_with_unknown_arguments
IntersectionTypes.overloadeded_functions_with_unknown_result
IntersectionTypes.overloadeded_functions_with_weird_typepacks_1
IntersectionTypes.overloadeded_functions_with_weird_typepacks_2
IntersectionTypes.overloadeded_functions_with_weird_typepacks_3
IntersectionTypes.overloadeded_functions_with_weird_typepacks_4
IntersectionTypes.propagates_name
IntersectionTypes.select_correct_union_fn
IntersectionTypes.should_still_pick_an_overload_whose_arguments_are_unions
IntersectionTypes.table_extra_ok
IntersectionTypes.table_intersection_setmetatable
IntersectionTypes.table_intersection_write_sealed
IntersectionTypes.table_intersection_write_sealed_indirect
IntersectionTypes.table_write_sealed_indirect
IntersectionTypes.union_saturate_overloaded_functions
isSubtype.any_is_unknown_union_error
Linter.DeprecatedApiFenv
Linter.FormatStringTyped
Linter.TableOperationsIndexer
ModuleTests.clone_self_property
Negations.negated_string_is_a_subtype_of_string
NonstrictModeTests.inconsistent_module_return_types_are_ok
NonstrictModeTests.infer_nullary_function
NonstrictModeTests.infer_the_maximum_number_of_values_the_function_could_return
NonstrictModeTests.inline_table_props_are_also_any
NonstrictModeTests.local_tables_are_not_any
NonstrictModeTests.locals_are_any_by_default
NonstrictModeTests.offer_a_hint_if_you_use_a_dot_instead_of_a_colon
NonstrictModeTests.table_props_are_any
Normalize.higher_order_function_with_annotation
Normalize.negations_of_tables
Normalize.specific_functions_cannot_be_negated
ProvisionalTests.assign_table_with_refined_property_with_a_similar_type_is_illegal
ProvisionalTests.choose_the_right_overload_for_pcall
ProvisionalTests.do_not_ice_when_trying_to_pick_first_of_generic_type_pack
ProvisionalTests.error_on_eq_metamethod_returning_a_type_other_than_boolean
ProvisionalTests.expected_type_should_be_a_helpful_deduction_guide_for_function_calls
ProvisionalTests.floating_generics_should_not_be_allowed
ProvisionalTests.free_is_not_bound_to_any
ProvisionalTests.free_options_can_be_unified_together
ProvisionalTests.free_options_cannot_be_unified_together
ProvisionalTests.function_returns_many_things_but_first_of_it_is_forgotten
ProvisionalTests.generic_type_leak_to_module_interface
ProvisionalTests.generic_type_leak_to_module_interface_variadic
ProvisionalTests.greedy_inference_with_shared_self_triggers_function_with_no_returns
ProvisionalTests.it_should_be_agnostic_of_actual_size
ProvisionalTests.luau-polyfill.Array.filter
ProvisionalTests.luau_roact_useState_minimization
ProvisionalTests.optional_class_instances_are_invariant
ProvisionalTests.pcall_returns_at_least_two_value_but_function_returns_nothing
ProvisionalTests.setmetatable_constrains_free_type_into_free_table
ProvisionalTests.specialization_binds_with_prototypes_too_early
ProvisionalTests.table_insert_with_a_singleton_argument
ProvisionalTests.table_unification_infinite_recursion
ProvisionalTests.typeguard_inference_incomplete
ProvisionalTests.while_body_are_also_refined
ProvisionalTests.xpcall_returns_what_f_returns
RefinementTest.apply_refinements_on_astexprindexexpr_whose_subscript_expr_is_constant_string
RefinementTest.assert_a_to_be_truthy_then_assert_a_to_be_number
RefinementTest.assert_non_binary_expressions_actually_resolve_constraints
RefinementTest.correctly_lookup_a_shadowed_local_that_which_was_previously_refined
RefinementTest.correctly_lookup_property_whose_base_was_previously_refined
RefinementTest.dataflow_analysis_can_tell_refinements_when_its_appropriate_to_refine_into_nil_or_never
RefinementTest.discriminate_from_truthiness_of_x
RefinementTest.either_number_or_string
RefinementTest.fail_to_refine_a_property_of_subscript_expression
RefinementTest.falsiness_of_TruthyPredicate_narrows_into_nil
RefinementTest.function_call_with_colon_after_refining_not_to_be_nil
RefinementTest.impossible_type_narrow_is_not_an_error
RefinementTest.index_on_a_refined_property
RefinementTest.isa_type_refinement_must_be_known_ahead_of_time
RefinementTest.merge_should_be_fully_agnostic_of_hashmap_ordering
RefinementTest.narrow_property_of_a_bounded_variable
RefinementTest.nonoptional_type_can_narrow_to_nil_if_sense_is_true
RefinementTest.not_t_or_some_prop_of_t
RefinementTest.refine_a_property_of_some_global
RefinementTest.refine_unknown_to_table_then_clone_it
RefinementTest.refinements_should_preserve_error_suppression
RefinementTest.string_not_equal_to_string_or_nil
RefinementTest.truthy_constraint_on_properties
RefinementTest.type_annotations_arent_relevant_when_doing_dataflow_analysis
RefinementTest.type_comparison_ifelse_expression
RefinementTest.type_guard_narrowed_into_nothingness
RefinementTest.type_narrow_to_vector
RefinementTest.typeguard_cast_free_table_to_vector
RefinementTest.typeguard_in_assert_position
RefinementTest.typeguard_in_if_condition_position
RefinementTest.x_as_any_if_x_is_instance_elseif_x_is_table
TableTests.a_free_shape_can_turn_into_a_scalar_directly
TableTests.a_free_shape_can_turn_into_a_scalar_if_it_is_compatible
TableTests.a_free_shape_cannot_turn_into_a_scalar_if_it_is_not_compatible
TableTests.accidentally_checked_prop_in_opposite_branch
TableTests.any_when_indexing_into_an_unsealed_table_with_no_indexer_in_nonstrict_mode
TableTests.array_factory_function
TableTests.call_method
TableTests.call_method_with_explicit_self_argument
TableTests.casting_tables_with_props_into_table_with_indexer2
TableTests.casting_tables_with_props_into_table_with_indexer3
TableTests.casting_tables_with_props_into_table_with_indexer4
TableTests.casting_unsealed_tables_with_props_into_table_with_indexer
TableTests.certain_properties_of_table_literal_arguments_can_be_covariant
TableTests.checked_prop_too_early
TableTests.cli_84607_missing_prop_in_array_or_dict
TableTests.common_table_element_general
TableTests.common_table_element_inner_index
TableTests.common_table_element_inner_prop
TableTests.common_table_element_list
TableTests.common_table_element_union_assignment
TableTests.common_table_element_union_in_call
TableTests.common_table_element_union_in_call_tail
TableTests.common_table_element_union_in_prop
TableTests.confusing_indexing
TableTests.cyclic_shifted_tables
TableTests.disallow_indexing_into_an_unsealed_table_with_no_indexer_in_strict_mode
TableTests.dont_crash_when_setmetatable_does_not_produce_a_metatabletypevar
TableTests.dont_extend_unsealed_tables_in_rvalue_position
TableTests.dont_leak_free_table_props
TableTests.dont_quantify_table_that_belongs_to_outer_scope
TableTests.dont_seal_an_unsealed_table_by_passing_it_to_a_function_that_takes_a_sealed_table
TableTests.dont_suggest_exact_match_keys
TableTests.error_detailed_indexer_key
TableTests.error_detailed_indexer_value
TableTests.error_detailed_metatable_prop
TableTests.expected_indexer_from_table_union
TableTests.expected_indexer_value_type_extra
TableTests.expected_indexer_value_type_extra_2
TableTests.explicitly_typed_table
TableTests.explicitly_typed_table_error
TableTests.explicitly_typed_table_with_indexer
TableTests.generalize_table_argument
TableTests.generic_table_instantiation_potential_regression
TableTests.indexer_mismatch
TableTests.indexer_on_sealed_table_must_unify_with_free_table
TableTests.indexers_get_quantified_too
TableTests.indexing_from_a_table_should_prefer_properties_when_possible
TableTests.inequality_operators_imply_exactly_matching_types
TableTests.infer_array_2
TableTests.infer_indexer_for_left_unsealed_table_from_right_hand_table_with_indexer
TableTests.infer_indexer_from_its_function_return_type
TableTests.infer_indexer_from_its_variable_type_and_unifiable
TableTests.infer_type_when_indexing_from_a_table_indexer
TableTests.inferred_return_type_of_free_table
TableTests.instantiate_table_cloning_3
TableTests.invariant_table_properties_means_instantiating_tables_in_assignment_is_unsound
TableTests.invariant_table_properties_means_instantiating_tables_in_call_is_unsound
TableTests.length_operator_intersection
TableTests.length_operator_non_table_union
TableTests.length_operator_union
TableTests.less_exponential_blowup_please
TableTests.meta_add_both_ways
TableTests.meta_add_inferred
TableTests.metatable_mismatch_should_fail
TableTests.missing_metatable_for_sealed_tables_do_not_get_inferred
TableTests.mixed_tables_with_implicit_numbered_keys
TableTests.ok_to_provide_a_subtype_during_construction
TableTests.ok_to_set_nil_even_on_non_lvalue_base_expr
TableTests.okay_to_add_property_to_unsealed_tables_by_assignment
TableTests.okay_to_add_property_to_unsealed_tables_by_function_call
TableTests.only_ascribe_synthetic_names_at_module_scope
TableTests.oop_polymorphic
TableTests.open_table_unification_2
TableTests.pass_a_union_of_tables_to_a_function_that_requires_a_table
TableTests.pass_a_union_of_tables_to_a_function_that_requires_a_table_2
TableTests.passing_compatible_unions_to_a_generic_table_without_crashing
TableTests.persistent_sealed_table_is_immutable
TableTests.prop_access_on_key_whose_types_mismatches
TableTests.prop_access_on_unions_of_indexers_where_key_whose_types_mismatches
TableTests.quantify_even_that_table_was_never_exported_at_all
TableTests.quantify_metatables_of_metatables_of_table
TableTests.reasonable_error_when_adding_a_nonexistent_property_to_an_array_like_table
TableTests.recursive_metatable_type_call
TableTests.result_is_always_any_if_lhs_is_any
TableTests.result_is_bool_for_equality_operators_if_lhs_is_any
TableTests.right_table_missing_key2
TableTests.scalar_is_a_subtype_of_a_compatible_polymorphic_shape_type
TableTests.scalar_is_not_a_subtype_of_a_compatible_polymorphic_shape_type
TableTests.sealed_table_indexers_must_unify
TableTests.sealed_table_value_can_infer_an_indexer
TableTests.setmetatable_has_a_side_effect
TableTests.shared_selfs
TableTests.shared_selfs_from_free_param
TableTests.shared_selfs_through_metatables
TableTests.subproperties_can_also_be_covariantly_tested
TableTests.table_call_metamethod_basic
TableTests.table_call_metamethod_generic
TableTests.table_call_metamethod_must_be_callable
TableTests.table_function_check_use_after_free
TableTests.table_insert_should_cope_with_optional_properties_in_strict
TableTests.table_param_width_subtyping_1
TableTests.table_param_width_subtyping_2
TableTests.table_param_width_subtyping_3
TableTests.table_simple_call
TableTests.table_subtyping_with_extra_props_dont_report_multiple_errors
TableTests.table_subtyping_with_missing_props_dont_report_multiple_errors
TableTests.table_subtyping_with_missing_props_dont_report_multiple_errors2
TableTests.table_unification_4
TableTests.table_unifies_into_map
TableTests.top_table_type
TableTests.type_mismatch_on_massive_table_is_cut_short
TableTests.unification_of_unions_in_a_self_referential_type
TableTests.used_colon_instead_of_dot
TableTests.used_dot_instead_of_colon
TableTests.used_dot_instead_of_colon_but_correctly
TableTests.when_augmenting_an_unsealed_table_with_an_indexer_apply_the_correct_scope_to_the_indexer_type
TableTests.wrong_assign_does_hit_indexer
ToDot.function
ToString.exhaustive_toString_of_cyclic_table
ToString.free_types
ToString.named_metatable_toStringNamedFunction
ToString.pick_distinct_names_for_mixed_explicit_and_implicit_generics
ToString.primitive
ToString.tostring_unsee_ttv_if_array
ToString.toStringDetailed2
ToString.toStringErrorPack
ToString.toStringNamedFunction_generic_pack
ToString.toStringNamedFunction_map
TranspilerTests.types_should_not_be_considered_cyclic_if_they_are_not_recursive
TryUnifyTests.members_of_failed_typepack_unification_are_unified_with_errorType
TryUnifyTests.result_of_failed_typepack_unification_is_constrained
TryUnifyTests.typepack_unification_should_trim_free_tails
TryUnifyTests.uninhabited_table_sub_anything
TryUnifyTests.uninhabited_table_sub_never
TryUnifyTests.variadics_should_use_reversed_properly
TypeAliases.corecursive_types_generic
TypeAliases.cyclic_types_of_named_table_fields_do_not_expand_when_stringified
TypeAliases.dont_lose_track_of_PendingExpansionTypes_after_substitution
TypeAliases.free_variables_from_typeof_in_aliases
TypeAliases.generic_param_remap
TypeAliases.mismatched_generic_type_param
TypeAliases.mutually_recursive_aliases
TypeAliases.mutually_recursive_generic_aliases
TypeAliases.mutually_recursive_types_restriction_not_ok_1
TypeAliases.mutually_recursive_types_restriction_not_ok_2
TypeAliases.mutually_recursive_types_swapsies_not_ok
TypeAliases.recursive_types_restriction_not_ok
TypeAliases.report_shadowed_aliases
TypeAliases.saturate_to_first_type_pack
TypeAliases.table_types_record_the_property_locations
TypeAliases.type_alias_local_mutation
TypeAliases.type_alias_local_rename
TypeAliases.type_alias_locations
TypeAliases.type_alias_of_an_imported_recursive_generic_type
TypeAliases.use_table_name_and_generic_params_in_errors
TypeFamilyTests.add_family_at_work
TypeFamilyTests.family_as_fn_arg
TypeFamilyTests.family_as_fn_ret
TypeFamilyTests.function_internal_families
TypeFamilyTests.internal_families_raise_errors
TypeFamilyTests.table_internal_families
TypeFamilyTests.type_families_inhabited_with_normalization
TypeFamilyTests.unsolvable_family
TypeInfer.bidirectional_checking_of_callback_property
TypeInfer.check_expr_recursion_limit
TypeInfer.check_type_infer_recursion_count
TypeInfer.checking_should_not_ice
TypeInfer.cli_39932_use_unifier_in_ensure_methods
TypeInfer.cli_50041_committing_txnlog_in_apollo_client_error
TypeInfer.dont_ice_when_failing_the_occurs_check
TypeInfer.dont_report_type_errors_within_an_AstExprError
TypeInfer.dont_report_type_errors_within_an_AstStatError
TypeInfer.follow_on_new_types_in_substitution
TypeInfer.globals
TypeInfer.globals2
TypeInfer.globals_are_banned_in_strict_mode
TypeInfer.infer_assignment_value_types
TypeInfer.infer_locals_via_assignment_from_its_call_site
TypeInfer.infer_through_group_expr
TypeInfer.infer_type_assertion_value_type
TypeInfer.no_infinite_loop_when_trying_to_unify_uh_this
TypeInfer.no_stack_overflow_from_isoptional
TypeInfer.promote_tail_type_packs
TypeInfer.recursive_function_that_invokes_itself_with_a_refinement_of_its_parameter
TypeInfer.recursive_function_that_invokes_itself_with_a_refinement_of_its_parameter_2
TypeInfer.stringify_nested_unions_with_optionals
TypeInfer.tc_after_error_recovery_no_replacement_name_in_error
TypeInfer.tc_if_else_expressions_expected_type_3
TypeInfer.type_infer_recursion_limit_no_ice
TypeInfer.type_infer_recursion_limit_normalizer
TypeInfer.unify_nearly_identical_recursive_types
TypeInferAnyError.any_type_propagates
TypeInferAnyError.assign_prop_to_table_by_calling_any_yields_any
TypeInferAnyError.call_to_any_yields_any
TypeInferAnyError.can_subscript_any
TypeInferAnyError.for_in_loop_iterator_is_any
TypeInferAnyError.for_in_loop_iterator_is_any2
TypeInferAnyError.for_in_loop_iterator_is_error
TypeInferAnyError.for_in_loop_iterator_is_error2
TypeInferAnyError.for_in_loop_iterator_returns_any
TypeInferAnyError.intersection_of_any_can_have_props
TypeInferAnyError.quantify_any_does_not_bind_to_itself
TypeInferAnyError.replace_every_free_type_when_unifying_a_complex_function_with_any
TypeInferAnyError.type_error_addition
TypeInferClasses.callable_classes
TypeInferClasses.can_read_prop_of_base_class_using_string
TypeInferClasses.cannot_unify_class_instance_with_primitive
TypeInferClasses.class_type_mismatch_with_name_conflict
TypeInferClasses.class_unification_type_mismatch_is_correct_order
TypeInferClasses.detailed_class_unification_error
TypeInferClasses.index_instance_property
TypeInferClasses.indexable_classes
TypeInferClasses.intersections_of_unions_of_classes
TypeInferClasses.optional_class_field_access_error
TypeInferClasses.table_class_unification_reports_sane_errors_for_missing_properties
TypeInferClasses.table_indexers_are_invariant
TypeInferClasses.unions_of_intersections_of_classes
TypeInferClasses.we_can_report_when_someone_is_trying_to_use_a_table_rather_than_a_class
TypeInferFunctions.another_other_higher_order_function
TypeInferFunctions.apply_of_lambda_with_inferred_and_explicit_types
TypeInferFunctions.calling_function_with_anytypepack_doesnt_leak_free_types
TypeInferFunctions.cannot_hoist_interior_defns_into_signature
TypeInferFunctions.check_function_bodies
TypeInferFunctions.concrete_functions_are_not_supertypes_of_function
TypeInferFunctions.dont_assert_when_the_tarjan_limit_is_exceeded_during_generalization
TypeInferFunctions.dont_give_other_overloads_message_if_only_one_argument_matching_overload_exists
TypeInferFunctions.dont_infer_parameter_types_for_functions_from_their_call_site
TypeInferFunctions.duplicate_functions_with_different_signatures_not_allowed_in_nonstrict
TypeInferFunctions.error_detailed_function_mismatch_arg
TypeInferFunctions.error_detailed_function_mismatch_arg_count
TypeInferFunctions.error_detailed_function_mismatch_ret
TypeInferFunctions.error_detailed_function_mismatch_ret_count
TypeInferFunctions.error_detailed_function_mismatch_ret_mult
TypeInferFunctions.function_cast_error_uses_correct_language
TypeInferFunctions.function_decl_non_self_sealed_overwrite_2
TypeInferFunctions.function_decl_non_self_unsealed_overwrite
TypeInferFunctions.function_does_not_return_enough_values
TypeInferFunctions.function_exprs_are_generalized_at_signature_scope_not_enclosing
TypeInferFunctions.function_is_supertype_of_concrete_functions
TypeInferFunctions.function_statement_sealed_table_assignment_through_indexer
TypeInferFunctions.generic_packs_are_not_variadic
TypeInferFunctions.higher_order_function_2
TypeInferFunctions.higher_order_function_4
TypeInferFunctions.improved_function_arg_mismatch_error_nonstrict
TypeInferFunctions.improved_function_arg_mismatch_errors
TypeInferFunctions.infer_anonymous_function_arguments
TypeInferFunctions.infer_anonymous_function_arguments_outside_call
TypeInferFunctions.infer_generic_function_function_argument
TypeInferFunctions.infer_generic_function_function_argument_overloaded
TypeInferFunctions.infer_generic_lib_function_function_argument
TypeInferFunctions.infer_return_type_from_selected_overload
TypeInferFunctions.infer_return_value_type
TypeInferFunctions.infer_that_function_does_not_return_a_table
TypeInferFunctions.inferred_higher_order_functions_are_quantified_at_the_right_time3
TypeInferFunctions.instantiated_type_packs_must_have_a_non_null_scope
TypeInferFunctions.it_is_ok_to_oversaturate_a_higher_order_function_argument
TypeInferFunctions.list_all_overloads_if_no_overload_takes_given_argument_count
TypeInferFunctions.list_only_alternative_overloads_that_match_argument_count
TypeInferFunctions.luau_subtyping_is_np_hard
TypeInferFunctions.no_lossy_function_type
TypeInferFunctions.occurs_check_failure_in_function_return_type
TypeInferFunctions.other_things_are_not_related_to_function
TypeInferFunctions.param_1_and_2_both_takes_the_same_generic_but_their_arguments_are_incompatible
TypeInferFunctions.param_1_and_2_both_takes_the_same_generic_but_their_arguments_are_incompatible_2
TypeInferFunctions.record_matching_overload
TypeInferFunctions.report_exiting_without_return_nonstrict
TypeInferFunctions.report_exiting_without_return_strict
TypeInferFunctions.return_type_by_overload
TypeInferFunctions.too_few_arguments_variadic
TypeInferFunctions.too_few_arguments_variadic_generic
TypeInferFunctions.too_few_arguments_variadic_generic2
TypeInferFunctions.too_many_arguments
TypeInferFunctions.too_many_arguments_error_location
TypeInferFunctions.too_many_return_values_in_parentheses
TypeInferFunctions.too_many_return_values_no_function
TypeInferFunctions.vararg_function_is_quantified
TypeInferLoops.cli_68448_iterators_need_not_accept_nil
TypeInferLoops.dcr_iteration_explore_raycast_minimization
TypeInferLoops.dcr_iteration_fragmented_keys
TypeInferLoops.dcr_iteration_on_never_gives_never
TypeInferLoops.dcr_xpath_candidates
TypeInferLoops.for_in_loop
TypeInferLoops.for_in_loop_error_on_factory_not_returning_the_right_amount_of_values
TypeInferLoops.for_in_loop_error_on_iterator_requiring_args_but_none_given
TypeInferLoops.for_in_loop_on_error
TypeInferLoops.for_in_loop_on_non_function
TypeInferLoops.for_in_loop_with_custom_iterator
TypeInferLoops.for_in_loop_with_incompatible_args_to_iterator
TypeInferLoops.for_in_loop_with_next
TypeInferLoops.for_in_with_a_custom_iterator_should_type_check
TypeInferLoops.for_in_with_an_iterator_of_type_any
TypeInferLoops.for_in_with_generic_next
TypeInferLoops.for_in_with_just_one_iterator_is_ok
TypeInferLoops.for_loop
TypeInferLoops.ipairs_produces_integral_indices
TypeInferLoops.iteration_no_table_passed
TypeInferLoops.iteration_regression_issue_69967
TypeInferLoops.iteration_regression_issue_69967_alt
TypeInferLoops.loop_iter_basic
TypeInferLoops.loop_iter_metamethod_nil
TypeInferLoops.loop_iter_metamethod_ok
TypeInferLoops.loop_iter_metamethod_ok_with_inference
TypeInferLoops.loop_iter_trailing_nil
TypeInferLoops.loop_typecheck_crash_on_empty_optional
TypeInferLoops.properly_infer_iteratee_is_a_free_table
TypeInferLoops.repeat_loop
TypeInferLoops.unreachable_code_after_infinite_loop
TypeInferLoops.varlist_declared_by_for_in_loop_should_be_free
TypeInferLoops.while_loop
TypeInferModules.bound_free_table_export_is_ok
TypeInferModules.do_not_modify_imported_types
TypeInferModules.do_not_modify_imported_types_5
TypeInferModules.require
TypeInferModules.require_failed_module
TypeInferOOP.CheckMethodsOfSealed
TypeInferOOP.cycle_between_object_constructor_and_alias
TypeInferOOP.dont_suggest_using_colon_rather_than_dot_if_another_overload_works
TypeInferOOP.dont_suggest_using_colon_rather_than_dot_if_it_wont_help_2
TypeInferOOP.dont_suggest_using_colon_rather_than_dot_if_not_defined_with_colon
TypeInferOOP.inferring_hundreds_of_self_calls_should_not_suffocate_memory
TypeInferOOP.methods_are_topologically_sorted
TypeInferOOP.object_constructor_can_refer_to_method_of_self
TypeInferOOP.promise_type_error_too_complex
TypeInferOOP.react_style_oo
TypeInferOperators.add_type_family_works
TypeInferOperators.and_binexps_dont_unify
TypeInferOperators.cli_38355_recursive_union
TypeInferOperators.compound_assign_mismatch_metatable
TypeInferOperators.compound_assign_result_must_be_compatible_with_var
TypeInferOperators.concat_op_on_free_lhs_and_string_rhs
TypeInferOperators.concat_op_on_string_lhs_and_free_rhs
TypeInferOperators.disallow_string_and_types_without_metatables_from_arithmetic_binary_ops
TypeInferOperators.equality_operations_succeed_if_any_union_branch_succeeds
TypeInferOperators.error_on_invalid_operand_types_to_relational_operators2
TypeInferOperators.luau-polyfill.String.slice
TypeInferOperators.luau_polyfill_is_array
TypeInferOperators.mm_comparisons_must_return_a_boolean
TypeInferOperators.normalize_strings_comparison
TypeInferOperators.operator_eq_verifies_types_do_intersect
TypeInferOperators.primitive_arith_no_metatable
TypeInferOperators.reducing_and
TypeInferOperators.refine_and_or
TypeInferOperators.reworked_and
TypeInferOperators.reworked_or
TypeInferOperators.strict_binary_op_where_lhs_unknown
TypeInferOperators.typecheck_overloaded_multiply_that_is_an_intersection
TypeInferOperators.typecheck_overloaded_multiply_that_is_an_intersection_on_rhs
TypeInferOperators.typecheck_unary_len_error
TypeInferOperators.typecheck_unary_minus
TypeInferOperators.typecheck_unary_minus_error
TypeInferOperators.UnknownGlobalCompoundAssign
TypeInferPrimitives.CheckMethodsOfNumber
TypeInferPrimitives.string_function_indirect
TypeInferPrimitives.string_index
TypeInferUnknownNever.array_like_table_of_never_is_inhabitable
TypeInferUnknownNever.assign_to_local_which_is_never
TypeInferUnknownNever.assign_to_prop_which_is_never
TypeInferUnknownNever.index_on_union_of_tables_for_properties_that_is_never
TypeInferUnknownNever.index_on_union_of_tables_for_properties_that_is_sorta_never
TypeInferUnknownNever.length_of_never
TypeInferUnknownNever.math_operators_and_never
TypeInferUnknownNever.type_packs_containing_never_is_itself_uninhabitable
TypePackTests.pack_tail_unification_check
TypePackTests.type_alias_backwards_compatible
TypePackTests.type_alias_default_type_errors
TypePackTests.type_alias_type_packs_import
TypePackTests.type_packs_with_tails_in_vararg_adjustment
TypePackTests.unify_variadic_tails_in_arguments
TypeSingletons.enums_using_singletons_mismatch
TypeSingletons.error_detailed_tagged_union_mismatch_bool
TypeSingletons.error_detailed_tagged_union_mismatch_string
TypeSingletons.function_args_infer_singletons
TypeSingletons.function_call_with_singletons
TypeSingletons.function_call_with_singletons_mismatch
TypeSingletons.overloaded_function_call_with_singletons_mismatch
TypeSingletons.return_type_of_f_is_not_widened
TypeSingletons.table_properties_singleton_strings
TypeSingletons.table_properties_type_error_escapes
TypeSingletons.widen_the_supertype_if_it_is_free_and_subtype_has_singleton
TypeSingletons.widening_happens_almost_everywhere
TypeStatesTest.invalidate_type_refinements_upon_assignments
TypeStatesTest.local_t_is_assigned_a_fresh_table_with_x_assigned_a_union_and_then_assert_restricts_actual_outflow_of_types
UnionTypes.disallow_less_specific_assign
UnionTypes.disallow_less_specific_assign2
UnionTypes.error_detailed_optional
UnionTypes.error_detailed_union_all
UnionTypes.error_detailed_union_part
UnionTypes.error_takes_optional_arguments
UnionTypes.generic_function_with_optional_arg
UnionTypes.index_on_a_union_type_with_missing_property
UnionTypes.index_on_a_union_type_with_mixed_types
UnionTypes.index_on_a_union_type_with_one_optional_property
UnionTypes.index_on_a_union_type_with_one_property_of_type_any
UnionTypes.index_on_a_union_type_with_property_guaranteed_to_exist
UnionTypes.index_on_a_union_type_works_at_arbitrary_depth
UnionTypes.less_greedy_unification_with_union_types
UnionTypes.optional_arguments_table
UnionTypes.optional_assignment_errors
UnionTypes.optional_call_error
UnionTypes.optional_field_access_error
UnionTypes.optional_index_error
UnionTypes.optional_length_error
UnionTypes.optional_missing_key_error_details
UnionTypes.optional_union_follow
UnionTypes.optional_union_functions
UnionTypes.optional_union_members
UnionTypes.optional_union_methods
UnionTypes.table_union_write_indirect
UnionTypes.unify_unsealed_table_union_check
UnionTypes.union_of_functions
UnionTypes.union_of_functions_mentioning_generic_typepacks
UnionTypes.union_of_functions_mentioning_generics
UnionTypes.union_of_functions_with_mismatching_arg_arities
UnionTypes.union_of_functions_with_mismatching_arg_variadics
UnionTypes.union_of_functions_with_mismatching_result_arities
UnionTypes.union_of_functions_with_mismatching_result_variadics
UnionTypes.union_of_functions_with_variadics
UnionTypes.union_true_and_false
VisitType.throw_when_limit_is_exceeded
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