@stryke/helpers
Version:
A package containing miscellaneous helper functions that are used across many different Storm Software projects.
67 lines (66 loc) • 3.67 kB
TypeScript
export type Resolved<T> = Equal<T, ResolvedMain<T>> extends true ? T : ResolvedMain<T>;
type Equal<X, Y> = X extends Y ? (Y extends X ? true : false) : false;
type ResolvedMain<T> = T extends [never] ? never : ValueOf<T> extends boolean | number | bigint | string ? ValueOf<T> : T extends (...args: any[]) => any ? never : T extends object ? ResolvedObject<T> : ValueOf<T>;
type ResolvedObject<T extends object> = T extends (infer U)[] ? IsTuple<T> extends true ? ResolvedTuple<T> : ResolvedMain<U>[] : T extends Set<infer U> ? Set<ResolvedMain<U>> : T extends Map<infer K, infer V> ? Map<ResolvedMain<K>, ResolvedMain<V>> : T extends WeakSet<any> | WeakMap<any, any> ? never : T extends Date | Uint8Array | Uint8ClampedArray | Uint16Array | Uint32Array | BigUint64Array | Int8Array | Int16Array | Int32Array | BigInt64Array | Float32Array | Float64Array | ArrayBuffer | SharedArrayBuffer | DataView | Blob | File ? T : {
[P in keyof T]: ResolvedMain<T[P]>;
};
type ResolvedTuple<T extends readonly any[]> = T extends [] ? [] : T extends [infer F] ? [ResolvedMain<F>] : T extends [infer F, ...infer Rest extends readonly any[]] ? [ResolvedMain<F>, ...ResolvedTuple<Rest>] : T extends [(infer F)?] ? [ResolvedMain<F>?] : T extends [(infer F)?, ...infer Rest extends readonly any[]] ? [ResolvedMain<F>?, ...ResolvedTuple<Rest>] : [];
type IsTuple<T extends readonly any[] | {
length: number;
}> = [T] extends [
never
] ? false : T extends readonly any[] ? number extends T["length"] ? false : true : false;
type ValueOf<Instance> = IsValueOf<Instance, boolean> extends true ? boolean : IsValueOf<Instance, number> extends true ? number : IsValueOf<Instance, string> extends true ? string : Instance;
type IsValueOf<Instance, O extends ValueOfInterface<any>> = Instance extends O ? O extends ValueOfInterface<infer Primitive> ? Instance extends Primitive ? false : true : false : false;
interface ValueOfInterface<T> {
valueOf: () => T;
}
/**
* Creates a deep clone of the given object.
*
* @remarks
* This function creates a deep clone of the given object, including nested objects and arrays. The resulting output will be of type `Resolved<T>`, which is a type that resolves to the most specific type possible for the given input type `T`. **If you are just looking for a way to copy an object deeply, use {@link deepCopy} instead.**
*
* @example
* ```typescript
* // Clone a primitive values
* const num = 29;
* const clonedNum = clone(num);
* console.log(clonedNum); // 29
* console.log(clonedNum === num) ; // true
*
* // Clone an array
* const arr = [1, 2, 3];
* const clonedArr = clone(arr);
* console.log(clonedArr); // [1, 2, 3]
* console.log(clonedArr === arr); // false
*
* // Clone an array with nested objects
* const arr = [1, { a: 1 }, [1, 2, 3]];
* const clonedArr = clone(arr);
* arr[1].a = 2;
* console.log(arr); // [2, { a: 2 }, [1, 2, 3]]
* console.log(clonedArr); // [1, { a: 1 }, [1, 2, 3]]
* console.log(clonedArr === arr); // false
*
* // Clone an object
* const obj = { a: 1, b: 'es-toolkit', c: [1, 2, 3] };
* const clonedObj = clone(obj);
* console.log(clonedObj); // { a: 1, b: 'es-toolkit', c: [1, 2, 3] }
* console.log(clonedObj === obj); // false
*
*
* // Clone an object with nested objects
* const obj = { a: 1, b: { c: 1 } };
* const clonedObj = clone(obj);
* obj.b.c = 2;
* console.log(obj); // { a: 1, b: { c: 2 } }
* console.log(clonedObj); // { a: 1, b: { c: 1 } }
* console.log(clonedObj === obj); // false
* ```
*
* @param obj - The object to clone.
* @returns A deep clone of the given object.
*/
export declare function deepClone<T>(obj: T): Resolved<T>;
export {};