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https://github.com/luau-lang/luau.git
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c33700e473
* Reduce the stack utilization of type checking.
* Improve the error message that's reported when a delimiting comma is
missing from a table literal. eg
```lua
local t = {
first = 1
second = 2
}```
115 lines
2.6 KiB
C++
115 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/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/TypeVar.h"
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#include "Luau/VisitTypeVar.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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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("number", toString(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"), *typeChecker.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"), *typeChecker.stringType);
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}
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TEST_CASE_FIXTURE(Fixture, "string_function_other")
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{
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CheckResult result = check(R"(
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local s:string
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local p = s:match("foo")
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)");
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LUAU_REQUIRE_NO_ERRORS(result);
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CHECK_EQ(toString(requireType("p")), "string");
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}
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TEST_CASE_FIXTURE(Fixture, "CheckMethodsOfNumber")
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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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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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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_SUITE_END();
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