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92cce5776c
# General * Expose an optional `get_alias` API as an alternative to `get_config` in Luau.Require and Luau.RequireNavigator. * Improve the Luau CLI's virtual filesystem implementation to fix bugs related to `init.luau`. Fixes https://github.com/luau-lang/luau/issues/1816 # New Type Solver * Avoid double reporting errors when erroneous arguments are provided to type functions. * Fix some instances of unresovable cyclic type functions in loops by only considering the first loop cycles. This results in some type inference inaccuracies when the type of a variable in loop through multiple iterations. Fixes https://github.com/luau-lang/luau/issues/1413. * Better generalize free types that have meaningful lower and upper bounds, especially for table indexers. * Report more specific errors when assigning or returning table literal types, instead of citing the *entire* table type. * Inference for functions with generic type packs is greatly improved. * Fix some internal compiler exceptions when using type-stating functions like `table.freeze` in `if _ then _ else _` expressions and short circuiting binary operations. * More consistently simplify unions of primitive types, especially in array-like and dictionary-like tables. * Fix a crash when type checking an erroneous type alias containing `typeof` with a type assertion expression, as in: ``` type MyTable = {} -- This will error at type checking time as it's a duplicate type MyTable = typeof(setmetatable(SomeTable :: {}, SomeMetaTable)); ``` * Fix a crash when inferring the type of an index expression where the indexee is invalid (e.g. `nil`). # Runtime * Avoid throwing an exception from `luau_load` if we run out of memory. * Type functions are no longer compiled and included in bytecode. Fixes #1817. * Fix some instances of Luau C API functions reading invalid debug information (generally when the first or last instruction of a block was being inspected). Fixes #1369. * Avoid potential signed integer overflow when doing bounds checks on tables. * Support 16 byte aligned userdata objects when system allocation alignment is also 16 bytes. * Fix memory leaks in `Luau.Require` when using VM build with no exceptions. Fixes #1827. --------- Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: Ariel Weiss <aaronweiss@roblox.com> Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com> Co-authored-by: James McNellis <jmcnellis@roblox.com> Co-authored-by: Sora Kanosue <skanosue@roblox.com> Co-authored-by: Talha Pathan <tpathan@roblox.com> Co-authored-by: Varun Saini <vsaini@roblox.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
125 lines
3.2 KiB
C++
125 lines
3.2 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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#pragma once
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#include "Luau/Location.h"
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#include <string>
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#include <vector>
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#include <stdint.h>
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namespace Luau
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{
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struct HotComment;
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struct LintWarning
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{
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// Make sure any new lint codes are documented here: https://luau.org/lint
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// Note that in Studio, the active set of lint warnings is determined by FStringStudioLuauLints
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enum Code
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{
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Code_Unknown = 0,
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Code_UnknownGlobal = 1, // superseded by type checker
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Code_DeprecatedGlobal = 2,
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Code_GlobalUsedAsLocal = 3,
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Code_LocalShadow = 4, // disabled in Studio
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Code_SameLineStatement = 5, // disabled in Studio
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Code_MultiLineStatement = 6,
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Code_LocalUnused = 7, // disabled in Studio
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Code_FunctionUnused = 8, // disabled in Studio
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Code_ImportUnused = 9, // disabled in Studio
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Code_BuiltinGlobalWrite = 10,
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Code_PlaceholderRead = 11,
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Code_UnreachableCode = 12,
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Code_UnknownType = 13,
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Code_ForRange = 14,
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Code_UnbalancedAssignment = 15,
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Code_ImplicitReturn = 16, // disabled in Studio, superseded by type checker in strict mode
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Code_DuplicateLocal = 17,
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Code_FormatString = 18,
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Code_TableLiteral = 19,
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Code_UninitializedLocal = 20,
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Code_DuplicateFunction = 21,
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Code_DeprecatedApi = 22,
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Code_TableOperations = 23,
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Code_DuplicateCondition = 24,
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Code_MisleadingAndOr = 25,
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Code_CommentDirective = 26,
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Code_IntegerParsing = 27,
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Code_ComparisonPrecedence = 28,
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Code_RedundantNativeAttribute = 29,
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Code__Count
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};
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Code code;
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Location location;
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std::string text;
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static const char* getName(Code code);
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static Code parseName(const char* name);
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static uint64_t parseMask(const std::vector<HotComment>& hotcomments);
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};
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struct LintOptions
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{
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uint64_t warningMask = 0;
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void enableWarning(LintWarning::Code code)
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{
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warningMask |= 1ull << code;
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}
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void disableWarning(LintWarning::Code code)
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{
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warningMask &= ~(1ull << code);
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}
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bool isEnabled(LintWarning::Code code) const
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{
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return 0 != (warningMask & (1ull << code));
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}
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void setDefaults();
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};
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// clang-format off
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inline constexpr const char* kWarningNames[] = {
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"Unknown",
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"UnknownGlobal",
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"DeprecatedGlobal",
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"GlobalUsedAsLocal",
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"LocalShadow",
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"SameLineStatement",
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"MultiLineStatement",
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"LocalUnused",
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"FunctionUnused",
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"ImportUnused",
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"BuiltinGlobalWrite",
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"PlaceholderRead",
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"UnreachableCode",
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"UnknownType",
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"ForRange",
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"UnbalancedAssignment",
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"ImplicitReturn",
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"DuplicateLocal",
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"FormatString",
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"TableLiteral",
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"UninitializedLocal",
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"DuplicateFunction",
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"DeprecatedApi",
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"TableOperations",
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"DuplicateCondition",
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"MisleadingAndOr",
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"CommentDirective",
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"IntegerParsing",
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"ComparisonPrecedence",
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"RedundantNativeAttribute",
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};
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// clang-format on
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static_assert(std::size(kWarningNames) == unsigned(LintWarning::Code__Count), "did you forget to add warning to the list?");
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} // namespace Luau
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