node_modules/rxjs/dist/esm5/internal/observable/generate.js

import { __generator } from "tslib";
import { identity } from '../util/identity';
import { isScheduler } from '../util/isScheduler';
import { defer } from './defer';
import { scheduleIterable } from '../scheduled/scheduleIterable';
export function generate(initialStateOrOptions, condition, iterate, resultSelectorOrScheduler, scheduler) {
    var _a, _b;
    var resultSelector;
    var initialState;
    if (arguments.length === 1) {
        (_a = initialStateOrOptions, initialState = _a.initialState, condition = _a.condition, iterate = _a.iterate, _b = _a.resultSelector, resultSelector = _b === void 0 ? identity : _b, scheduler = _a.scheduler);
    }
    else {
        initialState = initialStateOrOptions;
        if (!resultSelectorOrScheduler || isScheduler(resultSelectorOrScheduler)) {
            resultSelector = identity;
            scheduler = resultSelectorOrScheduler;
        }
        else {
            resultSelector = resultSelectorOrScheduler;
        }
    }
    function gen() {
        var state;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0:
                    state = initialState;
                    _a.label = 1;
                case 1:
                    if (!(!condition || condition(state))) return [3, 4];
                    return [4, resultSelector(state)];
                case 2:
                    _a.sent();
                    _a.label = 3;
                case 3:
                    state = iterate(state);
                    return [3, 1];
                case 4: return [2];
            }
        });
    }
    return defer((scheduler
        ?
            function () { return scheduleIterable(gen(), scheduler); }
        :
            gen));
}
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