mirror of
https://github.com/luau-lang/luau.git
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92b0338400
We're back on track after the long weekend!
## General
- `clang-format`ed new code. Keep your code tidy!
- Disable some Luau tests that are broken currently.
- Enable fragment autocomplete to do tagged union completion for modules
typechecked in the old solver.
## New Type Solver
- Fix false positives on generic type packs in non-strict mode.
- Update type signature of `setmetatable` to be `<T, MT>(T, MT) ->
setmetatable<T, MT>`.
- Make local type aliases available in type functions. For example:
```
type Foo = number
type Array<T> = {T}
type function Bar(t)
return types.unionof(Foo, Array(t))
end
```
## VM/Runtime
- Make sure `lua_unref` doesn't accept refs which did not exist in the
table.
---
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: Sora Kanosue <skanosue@roblox.com>
Co-authored-by: Talha Pathan <tpathan@roblox.com>
Co-authored-by: Vighnesh Vijay <vvijay@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
---------
Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: Varun Saini <61795485+vrn-sn@users.noreply.github.com>
Co-authored-by: Menarul Alam <malam@roblox.com>
Co-authored-by: Aviral Goel <agoel@roblox.com>
Co-authored-by: Vighnesh <vvijay@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
Co-authored-by: Ariel Weiss <aaronweiss@roblox.com>
Co-authored-by: Andy Friesen <afriesen@roblox.com>
51 lines
1.4 KiB
C++
51 lines
1.4 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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#include "Fixture.h"
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#include "Luau/InferPolarity.h"
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#include "Luau/Polarity.h"
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#include "Luau/Type.h"
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#include "Luau/TypeArena.h"
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using namespace Luau;
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LUAU_FASTFLAG(LuauEagerGeneralization2);
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TEST_SUITE_BEGIN("InferPolarity");
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TEST_CASE_FIXTURE(Fixture, "T where T = { m: <a>(a) -> T }")
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{
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ScopedFastFlag sff{FFlag::LuauEagerGeneralization2, true};
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TypeArena arena;
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ScopePtr globalScope = std::make_shared<Scope>(builtinTypes->anyTypePack);
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TypeId tType = arena.addType(BlockedType{});
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TypeId aType = arena.addType(GenericType{globalScope.get(), "a"});
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TypeId mType = arena.addType(FunctionType{
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TypeLevel{},
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/* generics */ {aType},
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/* genericPacks */ {},
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/* argPack */ arena.addTypePack({aType}),
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/* retPack */ arena.addTypePack({tType})
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});
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emplaceType<TableType>(
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asMutable(tType),
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TableType{
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TableType::Props{{"m", Property::rw(mType)}},
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/* indexer */ std::nullopt,
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TypeLevel{},
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globalScope.get(),
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TableState::Sealed
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}
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);
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inferGenericPolarities(NotNull{&arena}, NotNull{globalScope.get()}, tType);
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const GenericType* aGeneric = get<GenericType>(aType);
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REQUIRE(aGeneric);
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CHECK(aGeneric->polarity == Polarity::Negative);
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}
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TEST_SUITE_END();
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