ndarray-methods/dist/index.d.ts

Convenient methods for JavaScript built-in multi-dimensional arrays.

import * as Library from "./main";
export default Library;
export * from "./main";
export type Infinity = 1e600;
export type NDArray<T> = (T | NDArray<T>)[];
type ToNumberOrInfinity<M extends number> = number extends M ? Infinity : M;
type FDArray<T, U> = U extends readonly [unknown, ...infer U] ? FDArray<T[], U> : T;
export type MDArray<T, U extends readonly unknown[]> = number extends U["length"] ? NDArray<T> : FDArray<T, U>;
type _ArrayOfLength<L extends number, T extends readonly number[]> = T["length"] extends L ? T : _ArrayOfLength<L, [...T, number]>;
export type ArrayOfLength<L extends number> = L extends Infinity ? number[] : _ArrayOfLength<L, []>;
export type BuildIndices<T extends readonly unknown[]> = {
    [P in keyof T]: number;
};
type _Indices<T, U extends readonly number[], M extends number> = NDArray<T> extends T ? ArrayOfLength<M> : U["length"] extends M ? U : T extends readonly (infer T)[] ? _Indices<T, [...U, number], M> : U;
export type Indices<T, M extends number = Infinity> = _Indices<T, [], ToNumberOrInfinity<M>>;
type _Shape<T, U extends readonly number[], M extends number> = NDArray<T> extends T ? ArrayOfLength<M> : U["length"] extends M ? U : T extends readonly never[] ? [...U, number] : T extends readonly (infer T)[] ? _Shape<T, [...U, number], M> : U;
export type Shape<T, M extends number = Infinity> = _Shape<T, [], ToNumberOrInfinity<M>>;
type _Map<T, S, U extends readonly unknown[]> = NDArray<T> extends T ? MDArray<S, U> : T extends readonly unknown[] ? number extends U["length"] ? {
    [P in keyof T]: _Map<T[P], S, U>;
} : U extends readonly [unknown, ...infer U] ? {
    [P in keyof T]: _Map<T[P], S, U>;
} : S : S;
export type Map<T, S, M extends number = Infinity> = _Map<T, S, ArrayOfLength<ToNumberOrInfinity<M>>>;
type _ElementType<T, M extends number> = M extends Infinity ? T extends NDArray<infer T> | readonly (infer T)[] ? ElementType<T, M> : T : Access<T, ArrayOfLength<M>>;
export type ElementType<T, M extends number = Infinity> = _ElementType<T, ToNumberOrInfinity<M>>;
type AllElements<T, U> = T extends readonly (infer T)[] ? AllElements<T, U | T> : U;
type _Access<T, U> = U extends readonly [infer P, ...infer U] ? P extends PropertyKey ? T extends Record<P, unknown> ? _Access<T[P], U> : T : T : T;
export type Access<T, U extends readonly unknown[]> = NDArray<T> extends T ? T : number extends U["length"] ? AllElements<T, never> : _Access<T, U>;
type Pop<T> = T extends readonly [...infer T, unknown] ? T : T;
export type Parent<T, M extends number = Infinity> = Extract<Access<T, Pop<Indices<T, ToNumberOrInfinity<M>>>>, readonly unknown[]>;
export type Cast<A, B> = A extends B ? A : B;
//# sourceMappingURL=index.d.ts.map