1 files changed, 82 insertions, 0 deletions
diff --git a/src/bun.js/builtins/js/ReadableStreamDefaultController.js b/src/bun.js/builtins/js/ReadableStreamDefaultController.js
new file mode 100644
index 000000000..07fc65cb1
--- /dev/null
+++ b/src/bun.js/builtins/js/ReadableStreamDefaultController.js
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2015 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.
+ */
+
+function initializeReadableStreamDefaultController(stream, underlyingSource, size, highWaterMark)
+{
+    "use strict";
+
+    if (arguments.length !== 5 && arguments[4] !== @isReadableStream)
+        @throwTypeError("ReadableStreamDefaultController constructor should not be called directly");
+
+    return @privateInitializeReadableStreamDefaultController.@call(this, stream, underlyingSource, size, highWaterMark);
+}
+
+function enqueue(chunk)
+{
+    "use strict";
+
+    if (!@isReadableStreamDefaultController(this))
+        throw @makeThisTypeError("ReadableStreamDefaultController", "enqueue");
+
+    if (!@readableStreamDefaultControllerCanCloseOrEnqueue(this))
+        @throwTypeError("ReadableStreamDefaultController is not in a state where chunk can be enqueued");
+
+    return @readableStreamDefaultControllerEnqueue(this, chunk);
+}
+
+function error(error)
+{
+    "use strict";
+
+    if (!@isReadableStreamDefaultController(this))
+        throw @makeThisTypeError("ReadableStreamDefaultController", "error");
+
+    @readableStreamDefaultControllerError(this, error);
+}
+
+function close()
+{
+    "use strict";
+
+    if (!@isReadableStreamDefaultController(this))
+        throw @makeThisTypeError("ReadableStreamDefaultController", "close");
+
+    if (!@readableStreamDefaultControllerCanCloseOrEnqueue(this))
+        @throwTypeError("ReadableStreamDefaultController is not in a state where it can be closed");
+
+    @readableStreamDefaultControllerClose(this);
+}
+
+@getter
+function desiredSize()
+{
+    "use strict";
+
+    if (!@isReadableStreamDefaultController(this))
+        throw @makeGetterTypeError("ReadableStreamDefaultController", "desiredSize");
+
+    return @readableStreamDefaultControllerGetDesiredSize(this);
+}
+