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refactor: start files migration nightmare

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Azgaar 2022-06-25 00:47:48 +03:00
parent c4736cc640
commit bc65e0e207
64 changed files with 1990 additions and 816 deletions
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51
utils/arrayUtils.js
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@ -7,54 +7,3 @@ function last(array) {
function unique(array) {
return [...new Set(array)];
}
// deep copy for Arrays (and other objects)
function deepCopy(obj) {
const id = x => x;
const dcTArray = a => a.map(id);
const dcObject = x => Object.fromEntries(Object.entries(x).map(([k, d]) => [k, dcAny(d)]));
const dcAny = x => (x instanceof Object ? (cf.get(x.constructor) || id)(x) : x);
// don't map keys, probably this is what we would expect
const dcMapCore = m => [...m.entries()].map(([k, v]) => [k, dcAny(v)]);
const cf = new Map([
[Int8Array, dcTArray],
[Uint8Array, dcTArray],
[Uint8ClampedArray, dcTArray],
[Int16Array, dcTArray],
[Uint16Array, dcTArray],
[Int32Array, dcTArray],
[Uint32Array, dcTArray],
[Float32Array, dcTArray],
[Float64Array, dcTArray],
[BigInt64Array, dcTArray],
[BigUint64Array, dcTArray],
[Map, m => new Map(dcMapCore(m))],
[WeakMap, m => new WeakMap(dcMapCore(m))],
[Array, a => a.map(dcAny)],
[Set, s => [...s.values()].map(dcAny)],
[Date, d => new Date(d.getTime())],
[Object, dcObject]
// ... extend here to implement their custom deep copy
]);
return dcAny(obj);
}
function getTypedArray(maxValue) {
console.assert(
Number.isInteger(maxValue) && maxValue >= 0 && maxValue <= UINT32_MAX,
`Array maxValue must be an integer between 0 and ${UINT32_MAX}, got ${maxValue}`
);
if (maxValue <= UINT8_MAX) return Uint8Array;
if (maxValue <= UINT16_MAX) return Uint16Array;
if (maxValue <= UINT32_MAX) return Uint32Array;
return Uint32Array;
}
function createTypedArray({maxValue, length, from}) {
const typedArray = getTypedArray(maxValue);
if (!from) return new typedArray(length);
return typedArray.from(from);
}