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codeql-action/node_modules/eslint-plugin-github/lib/utils/object-map.js
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// @ts-check | |
const {isDeepStrictEqual} = require('util') | |
/** | |
* ObjectMap extends Map, but determines key equality using Node.js’ `util.isDeepStrictEqual` rather than using [SameValueZero](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#key_equality). This makes using objects as keys a bit simpler. | |
*/ | |
module.exports = class ObjectMap extends Map { | |
#data | |
constructor(iterable = []) { | |
super() | |
this.#data = iterable | |
} | |
clear() { | |
this.#data = [] | |
} | |
delete(key) { | |
if (!this.has(key)) { | |
return false | |
} | |
this.#data = this.#data.filter(([existingKey]) => !isDeepStrictEqual(existingKey, key)) | |
return true | |
} | |
entries() { | |
return this.#data[Symbol.iterator]() | |
} | |
forEach(cb) { | |
for (const [key, value] of this.#data) { | |
cb(value, key, this.#data) | |
} | |
} | |
get(key) { | |
return this.#data.find(([existingKey]) => isDeepStrictEqual(existingKey, key))?.[1] | |
} | |
has(key) { | |
return this.#data.findIndex(([existingKey]) => isDeepStrictEqual(existingKey, key)) !== -1 | |
} | |
keys() { | |
return this.#data.map(([key]) => key)[Symbol.iterator]() | |
} | |
set(key, value) { | |
this.delete(key) | |
this.#data.push([key, value]) | |
return this | |
} | |
values() { | |
return this.#data.map(([, value]) => value)[Symbol.iterator]() | |
} | |
} |