Update Files

Kha/Tools/macos/std/php/Generator.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 php;
+
+/**
+	Generator is not a Haxe Iterable. It can be iterated one time only.
+	Unfortunately Haxe does not know that in PHP generators may have no `return` expression or `return value` with any type of `value`.
+	Use `return null` or untyped cast to workaround this issue:
+	```haxe
+	function generatorWithoutReturn():Generator {
+		php.Syntax.yield(1);
+		return null;
+	}
+
+	function generatorWithReturn():Generator {
+		php.Syntax.yield(1);
+		return cast "hello";
+	}
+
+	var g = generatorWithReturn();
+	for(i in g) {
+		trace(i);
+	}
+	trace(g.getReturn()); // "hello"
+	```
+
+	@see http://php.net/manual/en/class.generator.php
+**/
+@:native('Generator')
+extern class Generator {
+	function current():Dynamic;
+	function getReturn():Dynamic;
+	function key():Dynamic;
+	function next():Void;
+	function rewind():Void;
+	function send(value:Dynamic):Dynamic;
+	@:native('throw')
+	function throwError(exception:Throwable):Dynamic;
+	function valid():Bool;
+
+	inline function iterator():GeneratorIterator {
+		return new GeneratorIterator(this);
+	}
+}
+
+private class GeneratorIterator {
+	var generator:Generator;
+
+	/**
+		This field is required to maintain execution order of .next()/.valid()/.current() methods.
+		@see http://php.net/manual/en/class.iterator.php
+	**/
+	var first:Bool = true;
+
+	public inline function new(generator:Generator) {
+		this.generator = generator;
+	}
+
+	public inline function hasNext():Bool {
+		if (first) {
+			first = false;
+		} else {
+			generator.next();
+		}
+		return generator.valid();
+	}
+
+	public inline function next():Dynamic {
+		return generator.current();
+	}
+}