94 lines
1.6 KiB
JavaScript
94 lines
1.6 KiB
JavaScript
if (!String.prototype.size) {
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Object.defineProperty(String.prototype, 'size', {
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get() {
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var n = 0
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for (let it of this) {
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n++
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}
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return n
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}
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})
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Object.defineProperty(String.prototype, 'at16', {
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value(n) {
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var tmp = []
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for (let it of this) {
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tmp.push(it)
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}
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return tmp[n]
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}
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})
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}
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export class Enum {
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#dict_k = Object.create(null)
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#dict_v = Object.create(null)
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length = 0
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constructor(obj = {}) {
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for (let k in obj) {
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this.add(k, obj[k])
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}
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}
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add(k, v) {
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if (this.#dict_k[k]) {
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var _v = this.#dict_k[k]
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for (let t of _v) {
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this.#dict_v[t] = this.#dict_v[t].filter(i => i !== k)
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}
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} else {
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this.#dict_k[k] = Array.isArray(v) ? v : [v]
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this.length++
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}
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if (Array.isArray(v)) {
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for (let t of v) {
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if (this.#dict_v[t]) {
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this.#dict_v[t].push(k)
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} else {
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this.#dict_v[t] = [k]
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}
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}
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} else {
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this.#dict_v[v] = [k]
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}
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}
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remove(k) {
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var v = this.#dict_k[k]
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if (v) {
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delete this.#dict_k[k]
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if (Array.isArray(v)) {
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for (let t of v) {
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delete this.#dict_v[t]
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}
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}
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this.length--
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}
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}
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get(k) {
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if (this.#dict_k[k]) {
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return this.#dict_k[k]
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} else if (this.#dict_v[k]) {
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return this.#dict_v[k]
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}
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}
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forEach(callback, forV) {
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var dict = forV ? this.#dict_v : this.#dict_k
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for (let k in dict) {
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if (callback(k, dict[k]) === false) {
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break
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}
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}
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return this
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}
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toString() {
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return JSON.stringify(this.#dict_k)
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}
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}
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