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) {
|
let resultSelector;
|
let initialState;
|
if (arguments.length === 1) {
|
({
|
initialState,
|
condition,
|
iterate,
|
resultSelector = identity,
|
scheduler,
|
} = initialStateOrOptions);
|
}
|
else {
|
initialState = initialStateOrOptions;
|
if (!resultSelectorOrScheduler || isScheduler(resultSelectorOrScheduler)) {
|
resultSelector = identity;
|
scheduler = resultSelectorOrScheduler;
|
}
|
else {
|
resultSelector = resultSelectorOrScheduler;
|
}
|
}
|
function* gen() {
|
for (let state = initialState; !condition || condition(state); state = iterate(state)) {
|
yield resultSelector(state);
|
}
|
}
|
return defer((scheduler
|
?
|
() => scheduleIterable(gen(), scheduler)
|
:
|
gen));
|
}
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