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Kha/Tools/macos/std/lua/Coroutine.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 lua;
+
+import haxe.extern.Rest;
+import haxe.Constraints.Function;
+
+/**
+	Externs for native Lua coroutines.
+**/
+@:native("_G.coroutine")
+extern class Coroutine<T:Function> extends Thread {
+	/**
+		Creates a new coroutine, with body `f`. `f` must be a Lua function.
+	**/
+	static function create<T:Function>(f:T):Coroutine<T>;
+
+	/**
+		Returns the running coroutine plus a boolean, true when the running coroutine is the main one.
+	**/
+	static function running():CoroutineRunning;
+
+	/**
+		Returns the status of coroutine.
+	**/
+	static function status(c:Coroutine<Dynamic>):CoroutineState;
+
+	/**
+		Starts or continues the execution of coroutine.
+		The first time you resume a coroutine, it starts running its body.
+		The values `args` are passed as the arguments to the body function.
+		If the coroutine has yielded, `resume` restarts it;
+		the values `args` are passed as the results from the yield.
+
+		If the coroutine runs without any errors, `resume` returns `true` plus any
+		values passed to `yield` (if the coroutine yields) or any values returned
+		by the body function (if the coroutine terminates). If there is any error,
+		`resume` returns `false` plus the error message.
+	**/
+	static function resume<A, B>(c:Coroutine<Dynamic>, args:Rest<A>):CoroutineResume<B>;
+
+	/**
+		Suspends the execution of the calling coroutine.
+		The coroutine cannot be running a C function, a metamethod, or an iterator.
+		Any arguments to `yield` are passed as extra results to `resume`.
+	**/
+	static function yield<T>(args:Rest<Dynamic>):T;
+
+	/**
+		Creates a new coroutine, with body `f`.
+		Returns a function that resumes the coroutine each time it is called.
+		Any arguments passed to the function behave as the extra arguments to `resume`.
+		Returns the same values returned by `resume`, except the first boolean.
+		In case of error, propagates the error.
+	**/
+	static function wrap<T:Function>(f:T):T;
+}
+
+/**
+	A enumerator that describes the output of `Coroutine.status()`.
+**/
+enum abstract CoroutineState(String) {
+	/**
+		If the coroutine is suspended in a call to yield, or if it has not started
+		running yet.
+	**/
+	var Suspended = "suspended";
+
+	/**
+		If the coroutine is running.
+	**/
+	var Running = "running";
+
+	/**
+		If the coroutine is active but not running. That is, it has resumed another
+		coroutine.
+	**/
+	var Normal = "normal";
+
+	/**
+		If the coroutine has finished its body function or if it has stopped with
+		an error.
+	**/
+	var Dead = "dead";
+}
+
+@:multiReturn
+extern class CoroutineResume<T> {
+	var success:Bool;
+	var result:T;
+}
+
+@:multiReturn
+extern class CoroutineRunning {
+	var coroutine:Coroutine<Dynamic>;
+	var status:Bool;
+}