luau/Analysis/include/Luau/Simplify.h

37 lines
928 B
C
Raw Normal View History

2023-05-20 02:59:59 +08:00
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#pragma once
#include "Luau/Type.h"
#include <set>
namespace Luau
{
struct TypeArena;
struct BuiltinTypes;
struct SimplifyResult
{
TypeId result;
std::set<TypeId> blockedTypes;
};
SimplifyResult simplifyIntersection(NotNull<BuiltinTypes> builtinTypes, NotNull<TypeArena> arena, TypeId ty, TypeId discriminant);
SimplifyResult simplifyUnion(NotNull<BuiltinTypes> builtinTypes, NotNull<TypeArena> arena, TypeId ty, TypeId discriminant);
enum class Relation
{
Disjoint, // No A is a B or vice versa
Coincident, // Every A is in B and vice versa
Intersects, // Some As are in B and some Bs are in A. ex (number | string) <-> (string | boolean)
Subset, // Every A is in B
Superset, // Every B is in A
};
Relation relate(TypeId left, TypeId right);
} // namespace Luau