26 lines
868 B
JavaScript
26 lines
868 B
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.pathWalk = pathWalk;
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function produce(producer) {
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return producer();
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}
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function pathWalk(path, initialProducers, shrink) {
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const producers = initialProducers;
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const segments = path.split(':').map((text) => +text);
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if (segments.length === 0) {
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return producers.map(produce);
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}
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if (!segments.every((v) => !Number.isNaN(v))) {
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throw new Error(`Unable to replay, got invalid path=${path}`);
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}
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let values = producers.drop(segments[0]).map(produce);
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for (const s of segments.slice(1)) {
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const valueToShrink = values.getNthOrLast(0);
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if (valueToShrink === null) {
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throw new Error(`Unable to replay, got wrong path=${path}`);
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}
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values = shrink(valueToShrink).drop(s);
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}
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return values;
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}
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