mirror of
https://github.com/luau-lang/luau.git
synced 2024-12-13 13:30:40 +00:00
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
}```
114 lines
2.6 KiB
C++
114 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
|
|
|
|
#include "Luau/AstQuery.h"
|
|
#include "Luau/BuiltinDefinitions.h"
|
|
#include "Luau/Scope.h"
|
|
#include "Luau/TypeInfer.h"
|
|
#include "Luau/TypeVar.h"
|
|
#include "Luau/VisitTypeVar.h"
|
|
|
|
#include "Fixture.h"
|
|
|
|
#include "doctest.h"
|
|
|
|
using namespace Luau;
|
|
|
|
TEST_SUITE_BEGIN("TypeInferPrimitives");
|
|
|
|
TEST_CASE_FIXTURE(Fixture, "cannot_call_primitives")
|
|
{
|
|
CheckResult result = check("local foo = 5 foo()");
|
|
LUAU_REQUIRE_ERROR_COUNT(1, result);
|
|
|
|
REQUIRE(get<CannotCallNonFunction>(result.errors[0]) != nullptr);
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(Fixture, "string_length")
|
|
{
|
|
CheckResult result = check(R"(
|
|
local s = "Hello, World!"
|
|
local t = #s
|
|
)");
|
|
|
|
LUAU_REQUIRE_NO_ERRORS(result);
|
|
CHECK_EQ("number", toString(requireType("t")));
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(Fixture, "string_index")
|
|
{
|
|
CheckResult result = check(R"(
|
|
local s = "Hello, World!"
|
|
local t = s[4]
|
|
)");
|
|
|
|
LUAU_REQUIRE_ERROR_COUNT(1, result);
|
|
|
|
NotATable* nat = get<NotATable>(result.errors[0]);
|
|
REQUIRE(nat);
|
|
CHECK_EQ("string", toString(nat->ty));
|
|
|
|
CHECK_EQ("*error-type*", toString(requireType("t")));
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(Fixture, "string_method")
|
|
{
|
|
CheckResult result = check(R"(
|
|
local p = ("tacos"):len()
|
|
)");
|
|
|
|
LUAU_REQUIRE_NO_ERRORS(result);
|
|
CHECK_EQ(*requireType("p"), *typeChecker.numberType);
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(Fixture, "string_function_indirect")
|
|
{
|
|
CheckResult result = check(R"(
|
|
local s:string
|
|
local l = s.lower
|
|
local p = l(s)
|
|
)");
|
|
|
|
LUAU_REQUIRE_NO_ERRORS(result);
|
|
CHECK_EQ(*requireType("p"), *typeChecker.stringType);
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(Fixture, "string_function_other")
|
|
{
|
|
CheckResult result = check(R"(
|
|
local s:string
|
|
local p = s:match("foo")
|
|
)");
|
|
|
|
LUAU_REQUIRE_NO_ERRORS(result);
|
|
CHECK_EQ(toString(requireType("p")), "string");
|
|
}
|
|
|
|
TEST_CASE_FIXTURE(Fixture, "CheckMethodsOfNumber")
|
|
{
|
|
CheckResult result = check(R"(
|
|
local x: number = 9999
|
|
function x:y(z: number)
|
|
local s: string = z
|
|
end
|
|
)");
|
|
|
|
LUAU_REQUIRE_ERROR_COUNT(2, result);
|
|
CHECK_EQ(toString(result.errors[0]), "Cannot add method to non-table type 'number'");
|
|
CHECK_EQ(toString(result.errors[1]), "Type 'number' could not be converted into 'string'");
|
|
}
|
|
|
|
TEST_CASE("singleton_types")
|
|
{
|
|
BuiltinsFixture a;
|
|
|
|
{
|
|
BuiltinsFixture b;
|
|
}
|
|
|
|
// Check that Frontend 'a' environment wasn't modified by 'b'
|
|
CheckResult result = a.check("local s: string = 'hello' local t = s:lower()");
|
|
|
|
CHECK(result.errors.empty());
|
|
}
|
|
|
|
TEST_SUITE_END();
|