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set.ts
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set.ts
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// Ported from js-yaml v3.13.1:
// https://github.com/nodeca/js-yaml/commit/665aadda42349dcae869f12040d9b10ef18d12da
// Copyright 2011-2015 by Vitaly Puzrin. All rights reserved. MIT license.
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { Type } from "../type.ts";
import type { Any } from "../utils.ts";
const _hasOwnProperty = Object.prototype.hasOwnProperty;
function resolveYamlSet(data: Any): boolean {
if (data === null) return true;
for (const key in data) {
if (_hasOwnProperty.call(data, key)) {
if (data[key] !== null) return false;
}
}
return true;
}
function constructYamlSet(data: string): Any {
return data !== null ? data : {};
}
export const set = new Type("tag:yaml.org,2002:set", {
construct: constructYamlSet,
kind: "mapping",
resolve: resolveYamlSet,
});