add hw2

node_modules/langium/lib/utils/collections.d.ts

@@ -0,0 +1,90 @@
+/******************************************************************************
+ * Copyright 2021 TypeFox GmbH
+ * This program and the accompanying materials are made available under the
+ * terms of the MIT License, which is available in the project root.
+ ******************************************************************************/
+import type { Stream } from './stream.js';
+/**
+ * A multimap is a variation of a Map that has potentially multiple values for every key.
+ */
+export declare class MultiMap<K, V> {
+    private map;
+    constructor();
+    constructor(elements: Array<[K, V]>);
+    /**
+     * The total number of values in the multimap.
+     */
+    get size(): number;
+    /**
+     * Clear all entries in the multimap.
+     */
+    clear(): void;
+    /**
+     * Operates differently depending on whether a `value` is given:
+     *  * With a value, this method deletes the specific key / value pair from the multimap.
+     *  * Without a value, all values associated with the given key are deleted.
+     *
+     * @returns `true` if a value existed and has been removed, or `false` if the specified
+     *     key / value does not exist.
+     */
+    delete(key: K, value?: V): boolean;
+    /**
+     * Returns an array of all values associated with the given key. If no value exists,
+     * an empty array is returned.
+     *
+     * _Note:_ The returned array is assumed not to be modified. Use the `set` method to add a
+     * value and `delete` to remove a value from the multimap.
+     */
+    get(key: K): readonly V[];
+    /**
+     * Operates differently depending on whether a `value` is given:
+     *  * With a value, this method returns `true` if the specific key / value pair is present in the multimap.
+     *  * Without a value, this method returns `true` if the given key is present in the multimap.
+     */
+    has(key: K, value?: V): boolean;
+    /**
+     * Add the given key / value pair to the multimap.
+     */
+    add(key: K, value: V): this;
+    /**
+     * Add the given set of key / value pairs to the multimap.
+     */
+    addAll(key: K, values: Iterable<V>): this;
+    /**
+     * Invokes the given callback function for every key / value pair in the multimap.
+     */
+    forEach(callbackfn: (value: V, key: K, map: this) => void): void;
+    /**
+     * Returns an iterator of key, value pairs for every entry in the map.
+     */
+    [Symbol.iterator](): Iterator<[K, V]>;
+    /**
+     * Returns a stream of key, value pairs for every entry in the map.
+     */
+    entries(): Stream<[K, V]>;
+    /**
+     * Returns a stream of keys in the map.
+     */
+    keys(): Stream<K>;
+    /**
+     * Returns a stream of values in the map.
+     */
+    values(): Stream<V>;
+    /**
+     * Returns a stream of key, value set pairs for every key in the map.
+     */
+    entriesGroupedByKey(): Stream<[K, V[]]>;
+}
+export declare class BiMap<K, V> {
+    private map;
+    private inverse;
+    get size(): number;
+    constructor();
+    constructor(elements: Array<[K, V]>);
+    clear(): void;
+    set(key: K, value: V): this;
+    get(key: K): V | undefined;
+    getKey(value: V): K | undefined;
+    delete(key: K): boolean;
+}
+//# sourceMappingURL=collections.d.ts.map