mirror of https://github.com/denoland/deno.git
50 lines
1.2 KiB
TypeScript
50 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 _toString = Object.prototype.toString;
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function resolveYamlPairs(data: Any[][]): boolean {
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const result = new Array(data.length);
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for (let index = 0; index < data.length; index++) {
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const pair = data[index];
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if (_toString.call(pair) !== "[object Object]") return false;
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const keys = Object.keys(pair);
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if (keys.length !== 1) return false;
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result[index] = [keys[0], pair[keys[0] as Any]];
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}
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return true;
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}
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function constructYamlPairs(data: string): Any[] {
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if (data === null) return [];
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const result = new Array(data.length);
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for (let index = 0; index < data.length; index += 1) {
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const pair = data[index];
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const keys = Object.keys(pair);
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result[index] = [keys[0], pair[keys[0] as Any]];
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}
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return result;
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}
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export const pairs = new Type("tag:yaml.org,2002:pairs", {
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construct: constructYamlPairs,
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kind: "sequence",
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resolve: resolveYamlPairs,
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});
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