1 files changed, 95 insertions, 0 deletions
diff --git a/Source/WebCore/Modules/streams/ReadableByteStreamController.js b/Source/WebCore/Modules/streams/ReadableByteStreamController.js
new file mode 100644
index 000000000..c2feb1579
--- /dev/null
+++ b/Source/WebCore/Modules/streams/ReadableByteStreamController.js
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2016 Canon Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// @conditional=ENABLE(READABLE_STREAM_API) && ENABLE(READABLE_BYTE_STREAM_API)
+
+function enqueue(chunk)
+{
+    "use strict";
+
+    if (!@isReadableByteStreamController(this))
+        throw @makeThisTypeError("ReadableByteStreamController", "enqueue");
+
+    if (this.@closeRequested)
+        @throwTypeError("ReadableByteStreamController is requested to close");
+
+    if (this.@controlledReadableStream.@state !== @streamReadable)
+        @throwTypeError("ReadableStream is not readable");
+
+    if (!@isObject(chunk))
+        @throwTypeError("Provided chunk is not an object");
+
+    if (!@ArrayBuffer.@isView(chunk))
+        @throwTypeError("Provided chunk is not an ArrayBuffer view");
+
+    return @readableByteStreamControllerEnqueue(this, chunk);
+}
+
+function error(error)
+{
+    "use strict";
+
+    if (!@isReadableByteStreamController(this))
+        throw @makeThisTypeError("ReadableByteStreamController", "error");
+
+    if (this.@controlledReadableStream.@state !== @streamReadable)
+        @throwTypeError("ReadableStream is not readable");
+
+    @readableByteStreamControllerError(this, error);
+}
+
+function close()
+{
+    "use strict";
+
+    if (!@isReadableByteStreamController(this))
+        throw @makeThisTypeError("ReadableByteStreamController", "close");
+
+    if (this.@closeRequested)
+        @throwTypeError("Close has already been requested");
+
+    if (this.@controlledReadableStream.@state !== @streamReadable)
+        @throwTypeError("ReadableStream is not readable");
+
+    @readableByteStreamControllerClose(this);
+}
+
+function byobRequest()
+{
+    "use strict";
+
+    //FIXME: Implement appropriate behavior.
+    @throwTypeError("ReadableByteStreamController byobRequest is not implemented");
+}
+
+function desiredSize()
+{
+    "use strict";
+
+    if (!@isReadableByteStreamController(this))
+        throw @makeGetterTypeError("ReadableByteStreamController", "desiredSize");
+
+    return @readableByteStreamControllerGetDesiredSize(this);
+}