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9a4bc6aeb8
Closes #1441 Brings behavior to parity with the old solver by filling in definitionLocation and definitionModuleName for Luau-consuming programs/libraries to use.
798 lines
20 KiB
C++
798 lines
20 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 "Fixture.h"
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#include "doctest.h"
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LUAU_FASTFLAG(LuauInstantiateInSubtyping)
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LUAU_FASTFLAG(LuauRequireCyclesDontAlwaysReturnAny)
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LUAU_FASTFLAG(LuauSolverV2)
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LUAU_FASTFLAG(LuauTypestateBuiltins2)
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LUAU_FASTFLAG(LuauNewSolverPopulateTableLocations)
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using namespace Luau;
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TEST_SUITE_BEGIN("TypeInferModules");
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TEST_CASE_FIXTURE(BuiltinsFixture, "dcr_require_basic")
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{
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fileResolver.source["game/A"] = R"(
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--!strict
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return {
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a = 1,
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}
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)";
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fileResolver.source["game/B"] = R"(
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--!strict
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local A = require(game.A)
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local b = A.a
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)";
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CheckResult aResult = frontend.check("game/A");
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LUAU_REQUIRE_NO_ERRORS(aResult);
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CheckResult bResult = frontend.check("game/B");
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LUAU_REQUIRE_NO_ERRORS(bResult);
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ModulePtr b = frontend.moduleResolver.getModule("game/B");
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REQUIRE(b != nullptr);
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std::optional<TypeId> bType = requireType(b, "b");
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REQUIRE(bType);
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CHECK(toString(*bType) == "number");
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "require")
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{
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fileResolver.source["game/A"] = R"(
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local function hooty(x: number): string
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return "Hi there!"
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end
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return {hooty=hooty}
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)";
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if (FFlag::LuauSolverV2)
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{
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fileResolver.source["game/B"] = R"(
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local Hooty = require(game.A)
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local h = 4
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local i = Hooty.hooty(h)
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)";
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}
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else
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{
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fileResolver.source["game/B"] = R"(
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local Hooty = require(game.A)
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local h -- free!
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local i = Hooty.hooty(h)
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)";
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}
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CheckResult aResult = frontend.check("game/A");
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dumpErrors(aResult);
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LUAU_REQUIRE_NO_ERRORS(aResult);
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CheckResult bResult = frontend.check("game/B");
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dumpErrors(bResult);
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LUAU_REQUIRE_NO_ERRORS(bResult);
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ModulePtr b = frontend.moduleResolver.getModule("game/B");
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REQUIRE(b != nullptr);
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dumpErrors(bResult);
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std::optional<TypeId> iType = requireType(b, "i");
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REQUIRE_EQ("string", toString(*iType));
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std::optional<TypeId> hType = requireType(b, "h");
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REQUIRE_EQ("number", toString(*hType));
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "require_types")
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{
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fileResolver.source["workspace/A"] = R"(
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export type Point = {x: number, y: number}
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return {}
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)";
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fileResolver.source["workspace/B"] = R"(
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local Hooty = require(workspace.A)
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local h: Hooty.Point
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)";
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CheckResult bResult = frontend.check("workspace/B");
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LUAU_REQUIRE_NO_ERRORS(bResult);
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ModulePtr b = frontend.moduleResolver.getModule("workspace/B");
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REQUIRE(b != nullptr);
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TypeId hType = requireType(b, "h");
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REQUIRE_MESSAGE(bool(get<TableType>(hType)), "Expected table but got " << toString(hType));
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "require_a_variadic_function")
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{
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fileResolver.source["game/A"] = R"(
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local T = {}
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function T.f(...) end
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return T
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)";
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fileResolver.source["game/B"] = R"(
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local A = require(game.A)
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local f = A.f
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)";
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CheckResult result = frontend.check("game/B");
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ModulePtr bModule = frontend.moduleResolver.getModule("game/B");
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REQUIRE(bModule != nullptr);
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TypeId f = follow(requireType(bModule, "f"));
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const FunctionType* ftv = get<FunctionType>(f);
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REQUIRE(ftv);
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auto iter = begin(ftv->argTypes);
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auto endIter = end(ftv->argTypes);
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REQUIRE(iter == endIter);
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REQUIRE(iter.tail());
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CHECK(get<VariadicTypePack>(*iter.tail()));
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "cross_module_table_freeze")
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{
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fileResolver.source["game/A"] = R"(
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--!strict
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return {
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a = 1,
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}
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)";
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fileResolver.source["game/B"] = R"(
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--!strict
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return table.freeze(require(game.A))
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)";
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CheckResult aResult = frontend.check("game/A");
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LUAU_REQUIRE_NO_ERRORS(aResult);
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CheckResult bResult = frontend.check("game/B");
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LUAU_REQUIRE_NO_ERRORS(bResult);
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ModulePtr a = frontend.moduleResolver.getModule("game/A");
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REQUIRE(a != nullptr);
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// confirm that no cross-module mutation happened here!
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if (FFlag::LuauSolverV2)
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CHECK(toString(a->returnType) == "{ a: number }");
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else
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CHECK(toString(a->returnType) == "{| a: number |}");
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ModulePtr b = frontend.moduleResolver.getModule("game/B");
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REQUIRE(b != nullptr);
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// confirm that no cross-module mutation happened here!
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if (FFlag::LuauSolverV2 && FFlag::LuauTypestateBuiltins2)
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CHECK(toString(b->returnType) == "{ read a: number }");
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else if (FFlag::LuauSolverV2)
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CHECK(toString(b->returnType) == "{ a: number }");
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else
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CHECK(toString(b->returnType) == "{| a: number |}");
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}
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TEST_CASE_FIXTURE(Fixture, "type_error_of_unknown_qualified_type")
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{
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CheckResult result = check(R"(
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local p: SomeModule.DoesNotExist
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)");
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LUAU_REQUIRE_ERROR_COUNT(1, result);
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REQUIRE_EQ(result.errors[0], (TypeError{Location{{1, 17}, {1, 40}}, UnknownSymbol{"SomeModule.DoesNotExist"}}));
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "require_module_that_does_not_export")
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{
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const std::string sourceA = R"(
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)";
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const std::string sourceB = R"(
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local Hooty = require(script.Parent.A)
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)";
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fileResolver.source["game/Workspace/A"] = sourceA;
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fileResolver.source["game/Workspace/B"] = sourceB;
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frontend.check("game/Workspace/A");
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frontend.check("game/Workspace/B");
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ModulePtr aModule = frontend.moduleResolver.getModule("game/Workspace/A");
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ModulePtr bModule = frontend.moduleResolver.getModule("game/Workspace/B");
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CHECK(aModule->errors.empty());
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REQUIRE_EQ(1, bModule->errors.size());
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CHECK_MESSAGE(get<IllegalRequire>(bModule->errors[0]), "Should be IllegalRequire: " << toString(bModule->errors[0]));
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auto hootyType = requireType(bModule, "Hooty");
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CHECK_EQ("*error-type*", toString(hootyType));
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "warn_if_you_try_to_require_a_non_modulescript")
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{
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fileResolver.source["Modules/A"] = "";
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fileResolver.sourceTypes["Modules/A"] = SourceCode::Local;
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fileResolver.source["Modules/B"] = R"(
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local M = require(script.Parent.A)
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)";
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CheckResult result = frontend.check("Modules/B");
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LUAU_REQUIRE_ERROR_COUNT(1, result);
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CHECK(get<IllegalRequire>(result.errors[0]));
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "general_require_call_expression")
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{
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fileResolver.source["game/A"] = R"(
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--!strict
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return { def = 4 }
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)";
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fileResolver.source["game/B"] = R"(
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--!strict
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local tbl = { abc = require(game.A) }
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local a : string = ""
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a = tbl.abc.def
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)";
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CheckResult result = frontend.check("game/B");
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LUAU_REQUIRE_ERROR_COUNT(1, result);
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CHECK_EQ("Type 'number' could not be converted into 'string'", toString(result.errors[0]));
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "general_require_type_mismatch")
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{
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fileResolver.source["game/A"] = R"(
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return { def = 4 }
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)";
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fileResolver.source["game/B"] = R"(
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local tbl: string = require(game.A)
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)";
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CheckResult result = frontend.check("game/B");
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LUAU_REQUIRE_ERROR_COUNT(1, result);
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if (FFlag::LuauSolverV2)
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CHECK_EQ("Type '{ def: number }' could not be converted into 'string'", toString(result.errors[0]));
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else
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CHECK_EQ("Type '{| def: number |}' could not be converted into 'string'", toString(result.errors[0]));
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}
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TEST_CASE_FIXTURE(Fixture, "bound_free_table_export_is_ok")
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{
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CheckResult result = check(R"(
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local n = {}
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function n:Clone() end
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local m = {}
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function m.a(x)
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x:Clone()
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end
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function m.b()
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m.a(n)
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end
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return m
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)");
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LUAU_REQUIRE_NO_ERRORS(result);
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "custom_require_global")
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{
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CheckResult result = check(R"(
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--!nonstrict
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require = function(a) end
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local crash = require(game.A)
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)");
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LUAU_REQUIRE_NO_ERRORS(result);
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "require_failed_module")
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{
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fileResolver.source["game/A"] = R"(
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return unfortunately()
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)";
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CheckResult aResult = frontend.check("game/A");
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LUAU_REQUIRE_ERRORS(aResult);
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CheckResult result = check(R"(
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local ModuleA = require(game.A)
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)");
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LUAU_REQUIRE_NO_ERRORS(result);
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std::optional<TypeId> oty = requireType("ModuleA");
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CHECK_EQ("*error-type*", toString(*oty));
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "do_not_modify_imported_types")
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{
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fileResolver.source["game/A"] = R"(
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export type Type = { unrelated: boolean }
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return {}
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)";
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fileResolver.source["game/B"] = R"(
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local types = require(game.A)
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type Type = types.Type
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local x: Type = {}
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function x:Destroy(): () end
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)";
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CheckResult result = frontend.check("game/B");
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LUAU_REQUIRE_ERROR_COUNT(2, result);
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "do_not_modify_imported_types_2")
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{
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fileResolver.source["game/A"] = R"(
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export type Type = { x: { a: number } }
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return {}
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)";
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fileResolver.source["game/B"] = R"(
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local types = require(game.A)
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type Type = types.Type
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local x: Type = { x = { a = 2 } }
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type Rename = typeof(x.x)
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)";
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CheckResult result = frontend.check("game/B");
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LUAU_REQUIRE_NO_ERRORS(result);
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "do_not_modify_imported_types_3")
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{
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fileResolver.source["game/A"] = R"(
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local y = setmetatable({}, {})
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export type Type = { x: typeof(y) }
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return { x = y }
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)";
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fileResolver.source["game/B"] = R"(
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local types = require(game.A)
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type Type = types.Type
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local x: Type = types
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type Rename = typeof(x.x)
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)";
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CheckResult result = frontend.check("game/B");
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LUAU_REQUIRE_NO_ERRORS(result);
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "do_not_modify_imported_types_4")
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{
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fileResolver.source["game/A"] = R"(
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export type Array<T> = {T}
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local arrayops = {}
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function arrayops.foo(x: Array<any>) end
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return arrayops
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)";
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CheckResult result = check(R"(
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local arrayops = require(game.A)
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local tbl = {}
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tbl.a = 2
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function tbl:foo(b: number, c: number)
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-- introduce BoundType to imported type
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arrayops.foo(self._regions)
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end
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-- this alias decreases function type level and causes a demotion of its type
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type Table = typeof(tbl)
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)");
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LUAU_REQUIRE_NO_ERRORS(result);
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "do_not_modify_imported_types_5")
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{
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fileResolver.source["game/A"] = R"(
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export type Type = {x: number, y: number}
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local arrayops = {}
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function arrayops.foo(x: Type) end
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return arrayops
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)";
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CheckResult result = check(R"(
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local arrayops = require(game.A)
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local tbl = {}
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tbl.a = 2
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function tbl:foo(b: number, c: number)
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-- introduce boundTo TableType to imported type
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self.x.a = 2
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arrayops.foo(self.x)
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end
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-- this alias decreases function type level and causes a demotion of its type
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type Table = typeof(tbl)
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)");
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LUAU_REQUIRE_NO_ERRORS(result);
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "module_type_conflict")
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{
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fileResolver.source["game/A"] = R"(
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export type T = { x: number }
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return {}
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)";
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fileResolver.source["game/B"] = R"(
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export type T = { x: string }
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return {}
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)";
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fileResolver.source["game/C"] = R"(
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local A = require(game.A)
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local B = require(game.B)
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local a: A.T = { x = 2 }
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local b: B.T = a
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)";
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CheckResult result = frontend.check("game/C");
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LUAU_REQUIRE_ERROR_COUNT(1, result);
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if (FFlag::LuauSolverV2)
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{
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if (FFlag::LuauNewSolverPopulateTableLocations)
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CHECK(
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toString(result.errors.at(0)) ==
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"Type 'T' from 'game/A' could not be converted into 'T' from 'game/B'; at [read \"x\"], number is not exactly string"
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);
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else
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CHECK(toString(result.errors.at(0)) == "Type 'T' could not be converted into 'T'; at [read \"x\"], number is not exactly string");
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}
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else
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{
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const std::string expected = R"(Type 'T' from 'game/A' could not be converted into 'T' from 'game/B'
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caused by:
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Property 'x' is not compatible.
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Type 'number' could not be converted into 'string' in an invariant context)";
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CHECK_EQ(expected, toString(result.errors[0]));
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}
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}
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TEST_CASE_FIXTURE(BuiltinsFixture, "module_type_conflict_instantiated")
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{
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fileResolver.source["game/A"] = R"(
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export type Wrap<T> = { x: T }
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return {}
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)";
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fileResolver.source["game/B"] = R"(
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local A = require(game.A)
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export type T = A.Wrap<number>
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return {}
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)";
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fileResolver.source["game/C"] = R"(
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local A = require(game.A)
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export type T = A.Wrap<string>
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return {}
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)";
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fileResolver.source["game/D"] = R"(
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local A = require(game.B)
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local B = require(game.C)
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local a: A.T = { x = 2 }
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local b: B.T = a
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)";
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CheckResult result = frontend.check("game/D");
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LUAU_REQUIRE_ERROR_COUNT(1, result);
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if (FFlag::LuauSolverV2)
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{
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if (FFlag::LuauNewSolverPopulateTableLocations)
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CHECK(
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toString(result.errors.at(0)) ==
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"Type 'T' from 'game/B' could not be converted into 'T' from 'game/C'; at [read \"x\"], number is not exactly string"
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);
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else
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CHECK(toString(result.errors.at(0)) == "Type 'T' could not be converted into 'T'; at [read \"x\"], number is not exactly string");
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}
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else
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{
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const std::string expected = R"(Type 'T' from 'game/B' could not be converted into 'T' from 'game/C'
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caused by:
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Property 'x' is not compatible.
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Type 'number' could not be converted into 'string' in an invariant context)";
|
|
CHECK_EQ(expected, toString(result.errors[0]));
|
|
}
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(BuiltinsFixture, "constrained_anyification_clone_immutable_types")
|
|
{
|
|
fileResolver.source["game/A"] = R"(
|
|
return function(...) end
|
|
)";
|
|
|
|
fileResolver.source["game/B"] = R"(
|
|
local l0 = require(game.A)
|
|
return l0
|
|
)";
|
|
|
|
CheckResult result = frontend.check("game/B");
|
|
LUAU_REQUIRE_NO_ERRORS(result);
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(BuiltinsFixture, "fuzz_anyify_variadic_return_must_follow")
|
|
{
|
|
CheckResult result = check(R"(
|
|
return unpack(l0[_])
|
|
)");
|
|
|
|
LUAU_REQUIRE_ERRORS(result);
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(BuiltinsFixture, "check_imported_module_names")
|
|
{
|
|
fileResolver.source["game/A"] = R"(
|
|
return function(...) end
|
|
)";
|
|
|
|
fileResolver.source["game/B"] = R"(
|
|
local l0 = require(game.A)
|
|
return l0
|
|
)";
|
|
|
|
CheckResult result = check(R"(
|
|
local l0 = require(game.B)
|
|
if true then
|
|
local l1 = require(game.A)
|
|
end
|
|
return l0
|
|
)");
|
|
|
|
LUAU_REQUIRE_NO_ERRORS(result);
|
|
|
|
ModulePtr mod = getMainModule();
|
|
REQUIRE(mod);
|
|
|
|
REQUIRE(mod->scopes.size() == 4);
|
|
CHECK(mod->scopes[0].second->importedModules["l0"] == "game/B");
|
|
CHECK(mod->scopes[3].second->importedModules["l1"] == "game/A");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(BuiltinsFixture, "ensure_scope_is_nullptr_after_shallow_copy")
|
|
{
|
|
ScopedFastFlag _{FFlag::LuauSolverV2, true};
|
|
frontend.options.retainFullTypeGraphs = false;
|
|
|
|
fileResolver.source["game/A"] = R"(
|
|
-- Roughly taken from ReactTypes.lua
|
|
type CoreBinding<T> = {}
|
|
type BindingMap = {}
|
|
export type Binding<T> = CoreBinding<T> & BindingMap
|
|
|
|
return {}
|
|
)";
|
|
|
|
LUAU_REQUIRE_NO_ERRORS(check(R"(
|
|
local Types = require(game.A)
|
|
type Binding<T> = Types.Binding<T>
|
|
)"));
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(BuiltinsFixture, "ensure_free_variables_are_generialized_across_function_boundaries")
|
|
{
|
|
ScopedFastFlag _{FFlag::LuauSolverV2, true};
|
|
|
|
fileResolver.source["game/A"] = R"(
|
|
-- Roughly taken from react-shallow-renderer
|
|
function createUpdater(renderer)
|
|
local updater = {
|
|
_renderer = renderer,
|
|
}
|
|
|
|
function updater.enqueueForceUpdate(publicInstance, callback, _callerName)
|
|
updater._renderer.render(
|
|
updater._renderer,
|
|
updater._renderer._element,
|
|
updater._renderer._context
|
|
)
|
|
end
|
|
|
|
function updater.enqueueReplaceState(
|
|
publicInstance,
|
|
completeState,
|
|
callback,
|
|
_callerName
|
|
)
|
|
updater._renderer.render(
|
|
updater._renderer,
|
|
updater._renderer._element,
|
|
updater._renderer._context
|
|
)
|
|
end
|
|
|
|
function updater.enqueueSetState(publicInstance, partialState, callback, _callerName)
|
|
local currentState = updater._renderer._newState or publicInstance.state
|
|
updater._renderer.render(
|
|
updater._renderer,
|
|
updater._renderer._element,
|
|
updater._renderer._context
|
|
)
|
|
end
|
|
|
|
return updater
|
|
end
|
|
|
|
local ReactShallowRenderer = {}
|
|
|
|
function ReactShallowRenderer:_reset()
|
|
self._updater = createUpdater(self)
|
|
end
|
|
|
|
return ReactShallowRenderer
|
|
)";
|
|
|
|
LUAU_REQUIRE_NO_ERRORS(check(R"(
|
|
local ReactShallowRenderer = require(game.A);
|
|
)"));
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(BuiltinsFixture, "untitled_segfault_number_13")
|
|
{
|
|
ScopedFastFlag _{FFlag::LuauSolverV2, true};
|
|
|
|
fileResolver.source["game/A"] = R"(
|
|
-- minimized from roblox-requests/http/src/response.lua
|
|
local Response = {}
|
|
Response.__index = Response
|
|
function Response.new(content_type)
|
|
-- creates response object from original request and roblox http response
|
|
local self = setmetatable({}, Response)
|
|
self.content_type = content_type
|
|
return self
|
|
end
|
|
|
|
function Response:xml(ignore_content_type)
|
|
if ignore_content_type or self.content_type:find("+xml") or self.content_type:find("/xml") then
|
|
else
|
|
end
|
|
end
|
|
|
|
---------------
|
|
|
|
return Response
|
|
)";
|
|
|
|
LUAU_REQUIRE_NO_ERRORS(check(R"(
|
|
local _ = require(game.A);
|
|
)"));
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(BuiltinsFixture, "spooky_blocked_type_laundered_by_bound_type")
|
|
{
|
|
ScopedFastFlag _{FFlag::LuauSolverV2, true};
|
|
|
|
fileResolver.source["game/A"] = R"(
|
|
local Cache = {}
|
|
|
|
Cache.settings = {}
|
|
|
|
Cache.data = {}
|
|
|
|
function Cache.should_cache(url)
|
|
url = url:split("?")[1]
|
|
|
|
for key, _ in pairs(Cache.settings) do
|
|
if url:match('') then
|
|
return key
|
|
end
|
|
end
|
|
|
|
return ""
|
|
end
|
|
|
|
function Cache.is_cached(url, req_id)
|
|
-- check local server cache first
|
|
|
|
local setting_key = Cache.should_cache(url)
|
|
local settings = Cache.settings[setting_key]
|
|
|
|
if not setting_key then
|
|
return false
|
|
end
|
|
|
|
if Cache.data[req_id] ~= nil then
|
|
return true
|
|
end
|
|
|
|
if Cache.settings[setting_key].cache_globally then
|
|
return false
|
|
else
|
|
return true
|
|
end
|
|
end
|
|
|
|
function Cache.get_expire(url)
|
|
local setting_key = Cache.should_cache(url)
|
|
return Cache.settings[setting_key].expires or math.huge
|
|
end
|
|
|
|
return Cache
|
|
)";
|
|
|
|
LUAU_REQUIRE_NO_ERRORS(check(R"(
|
|
local _ = require(game.A);
|
|
)"));
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(BuiltinsFixture, "cycles_dont_make_everything_any")
|
|
{
|
|
ScopedFastFlag sff{FFlag::LuauRequireCyclesDontAlwaysReturnAny, true};
|
|
|
|
fileResolver.source["game/A"] = R"(
|
|
--!strict
|
|
local module = {}
|
|
|
|
function module.foo()
|
|
return 2
|
|
end
|
|
|
|
function module.bar()
|
|
local m = require(game.B)
|
|
return m.foo() + 1
|
|
end
|
|
|
|
return module
|
|
)";
|
|
|
|
fileResolver.source["game/B"] = R"(
|
|
--!strict
|
|
local module = {}
|
|
|
|
function module.foo()
|
|
return 2
|
|
end
|
|
|
|
function module.bar()
|
|
local m = require(game.A)
|
|
return m.foo() + 1
|
|
end
|
|
|
|
return module
|
|
)";
|
|
|
|
frontend.check("game/A");
|
|
|
|
CHECK("module" == toString(frontend.moduleResolver.getModule("game/B")->returnType));
|
|
}
|
|
|
|
TEST_SUITE_END();
|