1 files changed, 117 insertions, 0 deletions
diff --git a/src/bun.js/builtins/js/ReadableByteStreamController.js b/src/bun.js/builtins/js/ReadableByteStreamController.js
new file mode 100644
index 000000000..0b47d730c
--- /dev/null
+++ b/src/bun.js/builtins/js/ReadableByteStreamController.js
@@ -0,0 +1,117 @@
+/*
+ * 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.
+ */
+
+function initializeReadableByteStreamController(stream, underlyingByteSource, highWaterMark)
+{
+    "use strict";
+
+    if (arguments.length !== 4 && arguments[3] !== @isReadableStream)
+        @throwTypeError("ReadableByteStreamController constructor should not be called directly");
+
+    return @privateInitializeReadableByteStreamController.@call(this, stream, underlyingByteSource, highWaterMark);
+}
+
+function enqueue(chunk)
+{
+    "use strict";
+
+    if (!@isReadableByteStreamController(this))
+        throw @makeThisTypeError("ReadableByteStreamController", "enqueue");
+
+    if (@getByIdDirectPrivate(this, "closeRequested"))
+        @throwTypeError("ReadableByteStreamController is requested to close");
+
+    if (@getByIdDirectPrivate(@getByIdDirectPrivate(this, "controlledReadableStream"), "state") !== @streamReadable)
+        @throwTypeError("ReadableStream is not readable");
+
+    if (!@isObject(chunk) || !@ArrayBuffer.@isView(chunk))
+        @throwTypeError("Provided chunk is not a TypedArray");
+
+    return @readableByteStreamControllerEnqueue(this, chunk);
+}
+
+function error(error)
+{
+    "use strict";
+
+    if (!@isReadableByteStreamController(this))
+        throw @makeThisTypeError("ReadableByteStreamController", "error");
+
+    if (@getByIdDirectPrivate(@getByIdDirectPrivate(this, "controlledReadableStream"), "state") !== @streamReadable)
+        @throwTypeError("ReadableStream is not readable");
+
+    @readableByteStreamControllerError(this, error);
+}
+
+function close()
+{
+    "use strict";
+
+    if (!@isReadableByteStreamController(this))
+        throw @makeThisTypeError("ReadableByteStreamController", "close");
+
+    if (@getByIdDirectPrivate(this, "closeRequested"))
+        @throwTypeError("Close has already been requested");
+
+    if (@getByIdDirectPrivate(@getByIdDirectPrivate(this, "controlledReadableStream"), "state") !== @streamReadable)
+        @throwTypeError("ReadableStream is not readable");
+
+    @readableByteStreamControllerClose(this);
+}
+
+@getter
+function byobRequest()
+{
+    "use strict";
+
+    if (!@isReadableByteStreamController(this))
+        throw @makeGetterTypeError("ReadableByteStreamController", "byobRequest");
+
+    
+    var request = @getByIdDirectPrivate(this, "byobRequest");
+    if (request === @undefined) {
+        var pending = @getByIdDirectPrivate(this, "pendingPullIntos");
+        const firstDescriptor = pending.peek();
+        if (firstDescriptor) {
+            const view = new @Uint8Array(firstDescriptor.buffer,
+            firstDescriptor.byteOffset + firstDescriptor.bytesFilled,
+            firstDescriptor.byteLength - firstDescriptor.bytesFilled);
+            @putByIdDirectPrivate(this, "byobRequest", new @ReadableStreamBYOBRequest(this, view, @isReadableStream));
+        }
+    }
+
+    return @getByIdDirectPrivate(this, "byobRequest");
+}
+
+@getter
+function desiredSize()
+{
+    "use strict";
+
+    if (!@isReadableByteStreamController(this))
+        throw @makeGetterTypeError("ReadableByteStreamController", "desiredSize");
+
+    return @readableByteStreamControllerGetDesiredSize(this);
+}