mirror of
https://github.com/luau-lang/luau.git
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d5a2a1585e
- Fix rare type checking bugs with invalid generic types escaping the module scope - Fix type checking of variadic type packs in certain cases - Implement type normalization, which resolves a large set of various issues with unions/intersections in type checker - Improve parse errors for trailing commas in function calls and type lists - Reduce profiling skew when using --profile with very high frequencies - Improve performance of `lua_getinfo` (`debug.info`, `debug.traceback` and profiling overhead are now 20% faster/smaller) - Improve performance of polymorphic comparisons (1-2% lift on some benchmarks) - Improve performance of closure creation (1-2% lift on some benchmarks) - Improve string comparison performance (4% lift on string sorting)
100 lines
2.6 KiB
C++
100 lines
2.6 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 "Luau/ConstraintGraphBuilder.h"
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#include "Luau/ConstraintSolver.h"
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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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using namespace Luau;
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static TypeId requireBinding(NotNull<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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AstStatBlock* block = parse(R"(
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local a = 55
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local b = a
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)");
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cgb.visit(block);
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NotNull<Scope> rootScope{cgb.rootScope};
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InternalErrorReporter iceHandler;
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UnifierSharedState sharedState{&iceHandler};
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Normalizer normalizer{&arena, singletonTypes, NotNull{&sharedState}};
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NullModuleResolver resolver;
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ConstraintSolver cs{NotNull{&normalizer}, rootScope, "MainModule", NotNull(&resolver), {}, &logger};
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cs.run();
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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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AstStatBlock* block = parse(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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cgb.visit(block);
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NotNull<Scope> rootScope{cgb.rootScope};
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InternalErrorReporter iceHandler;
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UnifierSharedState sharedState{&iceHandler};
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Normalizer normalizer{&arena, singletonTypes, NotNull{&sharedState}};
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NullModuleResolver resolver;
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ConstraintSolver cs{NotNull{&normalizer}, rootScope, "MainModule", NotNull(&resolver), {}, &logger};
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cs.run();
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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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AstStatBlock* block = parse(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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cgb.visit(block);
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NotNull<Scope> rootScope{cgb.rootScope};
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ToStringOptions opts;
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NullModuleResolver resolver;
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InternalErrorReporter iceHandler;
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UnifierSharedState sharedState{&iceHandler};
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Normalizer normalizer{&arena, singletonTypes, NotNull{&sharedState}};
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ConstraintSolver cs{NotNull{&normalizer}, rootScope, "MainModule", NotNull(&resolver), {}, &logger};
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cs.run();
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TypeId idType = requireBinding(rootScope, "b");
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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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