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https://github.com/luau-lang/luau.git
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16fbfe912c
- Cleaned up `FFlag::FixFindBindingAtFunctionName`, `FFlag::LuauNormalizeBlockedTypes`, `FFlag::LuauPCallDebuggerFix` - Added support for break and continue into control flow analysis - The old type unification engine will now report a more fine-grained error at times, indicating that type normalization in particular failed # New Type Solver - Refactor of Unifier2, the new unification implementation for Luau - Completed MVP of new unification implementation - Dramatically simplified overload selection logic - Type family reduction can now apply sooner to free types that have been solved - Subtyping now supports table indexers - Generalization now replaces bad generics with unknown # Native Code Generation - Reduce stack spills caused by FINDUPVAL and STORE_TAG - Improve Generate SHL/SHR/SAR/rotates with immediate operands in X64 - Removed redundant case re-check in table lookup fallback --------- Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com> Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: Lily Brown <lbrown@roblox.com>
70 lines
1.5 KiB
C++
70 lines
1.5 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 "ConstraintGraphBuilderFixture.h"
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#include "Fixture.h"
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#include "doctest.h"
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LUAU_FASTFLAG(DebugLuauDeferredConstraintResolution);
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using namespace Luau;
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static TypeId requireBinding(Scope* scope, const char* name)
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{
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auto b = linearSearchForBinding(scope, name);
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LUAU_ASSERT(b.has_value());
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return *b;
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}
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TEST_SUITE_BEGIN("ConstraintSolver");
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TEST_CASE_FIXTURE(ConstraintGraphBuilderFixture, "hello")
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{
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solve(R"(
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local a = 55
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local b = a
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)");
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TypeId bType = requireBinding(rootScope, "b");
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CHECK("number" == toString(bType));
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}
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TEST_CASE_FIXTURE(ConstraintGraphBuilderFixture, "generic_function")
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{
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solve(R"(
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local function id(a)
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return a
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end
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)");
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TypeId idType = requireBinding(rootScope, "id");
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CHECK("<a>(a) -> a" == toString(idType));
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}
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TEST_CASE_FIXTURE(ConstraintGraphBuilderFixture, "proper_let_generalization")
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{
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solve(R"(
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local function a(c)
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local function d(e)
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return c
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end
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return d
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end
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local b = a(5)
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)");
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TypeId idType = requireBinding(rootScope, "b");
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ToStringOptions opts;
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if (FFlag::DebugLuauDeferredConstraintResolution)
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CHECK("(unknown) -> number" == toString(idType, opts));
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else
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CHECK("<a>(a) -> number" == toString(idType, opts));
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}
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TEST_SUITE_END();
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