mirror of
https://github.com/luau-lang/luau.git
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b23d43496b
### What's new * Light update this week, mostly fast flag cleanups. ### New Solver * Rename flag to enable new solver from `DebugLuauDeferredConstraintResolution` to `LuauSolverV2` * Added support for magic functions for the new type checker (as opposed to the type inference component) * Improved handling of `string.format` with magic function improvements * Cleaning up some of the reported errors by the new type checker * Minor refactoring of `TypeChecker2.cpp` that happens to make the diff very hard to read. --- ### Internal Contributors Co-authored-by: Aaron Weiss <aaronweiss@roblox.com> Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: Vighnesh Vijay <vvijay@roblox.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com> --------- Co-authored-by: Alexander McCord <amccord@roblox.com> Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: Vighnesh <vvijay@roblox.com> Co-authored-by: Aviral Goel <agoel@roblox.com> Co-authored-by: David Cope <dcope@roblox.com> Co-authored-by: Lily Brown <lbrown@roblox.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com> Co-authored-by: Junseo Yoo <jyoo@roblox.com>
124 lines
2.9 KiB
C++
124 lines
2.9 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/AstQuery.h"
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#include "Luau/BuiltinDefinitions.h"
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#include "Luau/Scope.h"
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#include "Luau/TypeInfer.h"
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#include "Luau/Type.h"
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#include "Luau/VisitType.h"
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#include "Fixture.h"
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#include "DiffAsserts.h"
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#include "doctest.h"
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using namespace Luau;
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TEST_SUITE_BEGIN("TypeInferPrimitives");
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TEST_CASE_FIXTURE(Fixture, "cannot_call_primitives")
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{
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CheckResult result = check("local foo = 5 foo()");
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LUAU_REQUIRE_ERROR_COUNT(1, result);
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REQUIRE(get<CannotCallNonFunction>(result.errors[0]) != nullptr);
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}
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TEST_CASE_FIXTURE(Fixture, "string_length")
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{
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CheckResult result = check(R"(
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local s = "Hello, World!"
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local t = #s
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)");
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LUAU_REQUIRE_NO_ERRORS(result);
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CHECK_EQ_DIFF(builtinTypes->numberType, requireType("t"));
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}
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TEST_CASE_FIXTURE(Fixture, "string_index")
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{
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CheckResult result = check(R"(
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local s = "Hello, World!"
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local t = s[4]
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)");
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LUAU_REQUIRE_ERROR_COUNT(1, result);
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NotATable* nat = get<NotATable>(result.errors[0]);
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REQUIRE(nat);
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CHECK_EQ("string", toString(nat->ty));
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CHECK_EQ("*error-type*", toString(requireType("t")));
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}
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TEST_CASE_FIXTURE(Fixture, "string_method")
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{
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CheckResult result = check(R"(
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local p = ("tacos"):len()
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)");
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LUAU_REQUIRE_NO_ERRORS(result);
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CHECK_EQ(*requireType("p"), *builtinTypes->numberType);
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}
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TEST_CASE_FIXTURE(Fixture, "string_function_indirect")
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{
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CheckResult result = check(R"(
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local s:string
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local l = s.lower
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local p = l(s)
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)");
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LUAU_REQUIRE_NO_ERRORS(result);
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CHECK_EQ(*requireType("p"), *builtinTypes->stringType);
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}
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TEST_CASE_FIXTURE(Fixture, "check_methods_of_number")
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{
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CheckResult result = check(R"(
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local x: number = 9999
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function x:y(z: number)
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local s: string = z
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end
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)");
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LUAU_REQUIRE_ERROR_COUNT(2, result);
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if (FFlag::LuauSolverV2)
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{
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CHECK("Expected type table, got 'number' instead" == toString(result.errors[0]));
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CHECK("Type 'number' could not be converted into 'string'" == toString(result.errors[1]));
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}
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else
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{
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CHECK_EQ(toString(result.errors[0]), "Cannot add method to non-table type 'number'");
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CHECK_EQ(toString(result.errors[1]), "Type 'number' could not be converted into 'string'");
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}
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}
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TEST_CASE("singleton_types")
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{
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BuiltinsFixture a;
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{
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BuiltinsFixture b;
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}
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// Check that Frontend 'a' environment wasn't modified by 'b'
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CheckResult result = a.check("local s: string = 'hello' local t = s:lower()");
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CHECK(result.errors.empty());
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "property_of_buffers")
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{
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CheckResult result = check(R"(
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local b = buffer.create(100)
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print(b.foo)
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)");
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LUAU_REQUIRE_ERROR_COUNT(1, result);
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}
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TEST_SUITE_END();
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