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Kha/Backends/Node/js/node/stream/Transform.hx

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+/*
+ * Copyright (C)2014-2020 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 js.node.stream;
+
+#if haxe4
+import js.lib.Error;
+#else
+import js.Error;
+#end
+
+/**
+	A `Transform` stream is a `Duplex` stream where the output is computed in some way from the input.
+	Examples include `zlib` streams or `crypto` streams that compress, encrypt, or decrypt data.
+
+	@see https://nodejs.org/api/stream.html#stream_implementing_a_transform_stream
+**/
+@:jsRequire("stream", "Transform")
+extern class Transform<TSelf:Transform<TSelf>> extends Duplex<TSelf> implements ITransform {
+	function new(?options:TransformNewOptions);
+
+	/**
+		This function **MUST NOT** be called by application code directly.
+		It should be implemented by child classes, and called by the internal `Readable` class methods only.
+
+		@see https://nodejs.org/api/stream.html#stream_transform_flush_callback
+	**/
+	private function _flush(callback:Null<Error>->Void):Void;
+
+	/**
+		This function **MUST NOT** be called by application code directly.
+		It should be implemented by child classes, and called by the internal `Readable` class methods only.
+
+		@see https://nodejs.org/api/stream.html#stream_transform_transform_chunk_encoding_callback
+	**/
+	#if haxe4
+	private function _transform(chunk:Dynamic, encoding:String, callback:(error:Null<Error>, data:Dynamic) -> Void):Void;
+	#else
+	private function _transform(chunk:Dynamic, encoding:String, callback:Null<Error>->Dynamic->Void):Void;
+	#end
+}
+
+/**
+	@see https://nodejs.org/api/stream.html#stream_new_stream_transform_options
+**/
+typedef TransformNewOptions = {
+	> Duplex.DuplexNewOptions,
+
+	/**
+		Implementation for the `stream._transform()` method.
+	**/
+	#if haxe4
+	@:optional var transform:(chunk:Dynamic, encoding:String, callback:(error:Null<Error>, data:Dynamic) -> Void) -> Void;
+	#else
+	@:optional var transform:Dynamic->String->(Null<Error>->Dynamic->Void)->Void;
+	#end
+
+	/**
+		Implementation for the `stream._flush()` method.
+	**/
+	@:optional var flush:Null<Error>->Void;
+}
+
+@:remove
+extern interface ITransform extends Duplex.IDuplex {}