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https://github.com/luau-lang/luau.git
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4a2e8013c7
* For autocomplete, additional information is included in Scope for type alias name locations and names of imported modules * Improved autocomplete suggestions in 'for' and 'while' loop headers * String match functions return types are now optional strings and numbers because match is not guaranteed at runtime * Fixed build issue on gcc 11 and up (Fixes https://github.com/Roblox/luau/issues/806)
51 lines
966 B
C++
51 lines
966 B
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 "Fixture.h"
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#include "doctest.h"
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#include "Luau/Common.h"
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#include "ScopedFlags.h"
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using namespace Luau;
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namespace
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{
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struct NegationFixture : Fixture
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{
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TypeArena arena;
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NegationFixture()
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{
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registerHiddenTypes(&frontend);
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}
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};
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} // namespace
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TEST_SUITE_BEGIN("Negations");
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TEST_CASE_FIXTURE(NegationFixture, "negated_string_is_a_subtype_of_string")
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{
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CheckResult result = check(R"(
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function foo(arg: string) end
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local a: string & Not<"Hello">
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foo(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(NegationFixture, "string_is_not_a_subtype_of_negated_string")
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{
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CheckResult result = check(R"(
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function foo(arg: string & Not<"hello">) end
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local a: string
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foo(a)
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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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