dope2/structures/set.js

38 lines
895 B
JavaScript

import { setType, typedFnType } from "./types.js";
import { Bool, Type } from "../primitives/types.js";
import { makeGeneric } from "../generics/generics.js";
// 'normal' implementation
const emptySet = new Set();
const has = set => elem => set.has(elem);
const add = set => elem => new Set([...set, elem]);
export const ModuleList = {l:[
// Type -> Type
...typedFnType(setType, fnType =>
fnType
/* in */ (Type)
/* out */ (Type)
),
{i: emptySet, t: makeGeneric(a => setType(a))},
...typedFnType(has, fnType =>
makeGeneric(a =>
fnType
/* in */ (setType(a))
/* out */ (fnType
/* in */ (a)
/* out */ (Bool)
))),
...typedFnType(add, fnType =>
makeGeneric(a =>
fnType
/* in */ (setType(a))
/* out */ (fnType
/* in */ (a)
/* out */ (setType(a))
))),
]};