| 1 | import { IterableX } from './iterablex';
|
| 2 | class GenerateIterable extends IterableX {
|
| 3 | constructor(initialState, condition, iterate, resultSelector) {
|
| 4 | super();
|
| 5 | this._initialState = initialState;
|
| 6 | this._condition = condition;
|
| 7 | this._iterate = iterate;
|
| 8 | this._resultSelector = resultSelector;
|
| 9 | }
|
| 10 | *[Symbol.iterator]() {
|
| 11 | for (let i = this._initialState; this._condition(i); i = this._iterate(i)) {
|
| 12 | yield this._resultSelector(i);
|
| 13 | }
|
| 14 | }
|
| 15 | }
|
| 16 | /**
|
| 17 | * Generates an iterable sequence by running a state-driven loop producing the sequence's elements.
|
| 18 | *
|
| 19 | * @export
|
| 20 | * @template TState The type of the state used in the generator loop.
|
| 21 | * @template TResult The type of the elements in the produced sequence.
|
| 22 | * @param {TState} initialState The initial state.
|
| 23 | * @param {((value: TState) => boolean)} condition Condition to terminate generation (upon returning false).
|
| 24 | * @param {((value: TState) => TState)} iterate Iteration step function.
|
| 25 | * @param {((value: TState) => TResult)} resultSelector Selector function for results produced in
|
| 26 | * the sequence.
|
| 27 | * @returns {IterableX<TResult>} The generated iterable sequence.
|
| 28 | */
|
| 29 | export function generate(initialState, condition, iterate, resultSelector) {
|
| 30 | return new GenerateIterable(initialState, condition, iterate, resultSelector);
|
| 31 | }
|
| 32 |
|
| 33 | //# sourceMappingURL=generate.mjs.map
|