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Kha/Tools/macos/std/haxe/ds/HashMap.hx

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+/*
+ * Copyright (C)2005-2019 Haxe Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+package haxe.ds;
+
+import haxe.iterators.HashMapKeyValueIterator;
+
+/**
+	HashMap allows mapping of hashable objects to arbitrary values.
+
+	See `Map` for documentation details.
+
+	@see https://haxe.org/manual/std-Map.html
+**/
+abstract HashMap<K:{function hashCode():Int;}, V>(HashMapData<K, V>) {
+	/**
+		Creates a new HashMap.
+	**/
+	public inline function new() {
+		this = new HashMapData();
+	}
+
+	/**
+		See `Map.set`
+	**/
+	@:arrayAccess public inline function set(k:K, v:V) {
+		this.keys.set(k.hashCode(), k);
+		this.values.set(k.hashCode(), v);
+	}
+
+	/**
+		See `Map.get`
+	**/
+	@:arrayAccess public inline function get(k:K) {
+		return this.values.get(k.hashCode());
+	}
+
+	/**
+		See `Map.exists`
+	**/
+	public inline function exists(k:K) {
+		return this.values.exists(k.hashCode());
+	}
+
+	/**
+		See `Map.remove`
+	**/
+	public inline function remove(k:K) {
+		this.values.remove(k.hashCode());
+		return this.keys.remove(k.hashCode());
+	}
+
+	/**
+		See `Map.keys`
+	**/
+	public inline function keys() {
+		return this.keys.iterator();
+	}
+
+	/**
+		See `Map.copy`
+	**/
+	public function copy():HashMap<K, V> {
+		var copied = new HashMapData();
+		copied.keys = this.keys.copy();
+		copied.values = this.values.copy();
+		return cast copied;
+	}
+
+	/**
+		See `Map.iterator`
+	**/
+	public inline function iterator() {
+		return this.values.iterator();
+	}
+
+	/**
+		See `Map.keyValueIterator`
+	**/
+	public inline function keyValueIterator():HashMapKeyValueIterator<K, V> {
+		return new HashMapKeyValueIterator(cast this);
+	}
+
+	/**
+		See `Map.clear`
+	**/
+	public inline function clear():Void {
+		this.keys.clear();
+		this.values.clear();
+	}
+}
+
+private class HashMapData<K:{function hashCode():Int;}, V> {
+	public var keys:IntMap<K>;
+	public var values:IntMap<V>;
+
+	public inline function new() {
+		keys = new IntMap();
+		values = new IntMap();
+	}
+}