/** PURE_IMPORTS_START _Observable PURE_IMPORTS_END */
import { Observable } from '../Observable';
export function range(start, count, scheduler) {
    if (start === void 0) {
        start = 0;
    }
    if (count === void 0) {
        count = 0;
    }
    return new Observable(function (subscriber) {
        var index = 0;
        var current = start;
        if (scheduler) {
            return scheduler.schedule(dispatch, 0, {
                index: index, count: count, start: start, subscriber: subscriber
            });
        }
        else {
            do {
                if (index++ >= count) {
                    subscriber.complete();
                    break;
                }
                subscriber.next(current++);
                if (subscriber.closed) {
                    break;
                }
            } while (true);
        }
        return undefined;
    });
}
export function dispatch(state) {
    var start = state.start, index = state.index, count = state.count, subscriber = state.subscriber;
    if (index >= count) {
        subscriber.complete();
        return;
    }
    subscriber.next(start);
    if (subscriber.closed) {
        return;
    }
    state.index = index + 1;
    state.start = start + 1;
    this.schedule(state);
}
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