1 files changed, 68 insertions, 0 deletions
diff --git a/src/javascript/jsc/bindings/webcore/ReadableStreamSink.cpp b/src/javascript/jsc/bindings/webcore/ReadableStreamSink.cpp
new file mode 100644
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--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/ReadableStreamSink.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ *
+ * 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. AND ITS CONTRIBUTORS ``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 ITS 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.
+ */
+
+#include "config.h"
+#include "ReadableStreamSink.h"
+
+#include "BufferSource.h"
+#include "DOMException.h"
+#include "ReadableStream.h"
+
+namespace WebCore {
+
+ReadableStreamToSharedBufferSink::ReadableStreamToSharedBufferSink(Callback&& callback)
+    : m_callback { WTFMove(callback) }
+{
+}
+
+void ReadableStreamToSharedBufferSink::pipeFrom(ReadableStream& stream)
+{
+    stream.pipeTo(*this);
+}
+
+void ReadableStreamToSharedBufferSink::enqueue(const BufferSource& buffer)
+{
+    if (!buffer.length())
+        return;
+
+    if (m_callback) {
+        Span chunk { buffer.data(), buffer.length() };
+        m_callback(&chunk);
+    }
+}
+
+void ReadableStreamToSharedBufferSink::close()
+{
+    if (m_callback)
+        m_callback(nullptr);
+}
+
+void ReadableStreamToSharedBufferSink::error(String&& message)
+{
+    if (auto callback = WTFMove(m_callback))
+        callback(Exception { TypeError, WTFMove(message) });
+}
+
+} // namespace WebCore