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add equality map size

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Hervé BECHER
2024-05-13 22:24:09 +02:00
parent 05390027f8
commit 35d284f030
1 changed files with 9 additions and 0 deletions
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9
src/equality-map.ts
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@@ -2,6 +2,7 @@ import { Equater, MaybeAsyncEquater } from "./types.js";
import { asAsyncGenerator } from "./utils.js"; import { asAsyncGenerator } from "./utils.js";
export interface EqualityMap<K, V> extends Iterable<[K, V]> { export interface EqualityMap<K, V> extends Iterable<[K, V]> {
readonly size: number;
get(key: K): V | undefined; get(key: K): V | undefined;
set(key: K, value: V): V | undefined; set(key: K, value: V): V | undefined;
contains(key: K): boolean; contains(key: K): boolean;
@@ -12,6 +13,10 @@ export interface EqualityMap<K, V> extends Iterable<[K, V]> {
class NativeEqualityMap<K, V> implements EqualityMap<K, V> { class NativeEqualityMap<K, V> implements EqualityMap<K, V> {
readonly #map = new Map<K, V>(); readonly #map = new Map<K, V>();
get size() {
return this.#map.size;
}
get(key: K) { get(key: K) {
return this.#map.get(key); return this.#map.get(key);
} }
@@ -49,6 +54,10 @@ class CustomEqualityMap<K, V> implements EqualityMap<K, V> {
this.#keyComparer = keyComparer; this.#keyComparer = keyComparer;
} }
get size() {
return this.#list.length;
}
get(key: K) { get(key: K) {
for (const entry of this.#list) { for (const entry of this.#list) {
if (this.#keyComparer(key, entry[0])) { if (this.#keyComparer(key, entry[0])) {