mirror of https://github.com/denoland/deno.git
47 lines
1.2 KiB
TypeScript
47 lines
1.2 KiB
TypeScript
// Ported from js-yaml v3.13.1:
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// https://github.com/nodeca/js-yaml/commit/665aadda42349dcae869f12040d9b10ef18d12da
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// Copyright 2011-2015 by Vitaly Puzrin. All rights reserved. MIT license.
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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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import { Type } from "../type.ts";
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import type { Any } from "../utils.ts";
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const _hasOwnProperty = Object.prototype.hasOwnProperty;
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const _toString = Object.prototype.toString;
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function resolveYamlOmap(data: Any): boolean {
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const objectKeys: string[] = [];
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let pairKey = "";
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let pairHasKey = false;
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for (const pair of data) {
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pairHasKey = false;
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if (_toString.call(pair) !== "[object Object]") return false;
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for (pairKey in pair) {
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if (_hasOwnProperty.call(pair, pairKey)) {
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if (!pairHasKey) pairHasKey = true;
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else return false;
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}
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}
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if (!pairHasKey) return false;
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if (objectKeys.indexOf(pairKey) === -1) objectKeys.push(pairKey);
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else return false;
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}
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return true;
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}
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function constructYamlOmap(data: Any): Any {
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return data !== null ? data : [];
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}
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export const omap = new Type("tag:yaml.org,2002:omap", {
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construct: constructYamlOmap,
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kind: "sequence",
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resolve: resolveYamlOmap,
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});
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