[WIP] ReadableStream V8 extension

Source/platform/streams/js2c.py

+#!/usr/bin/env python
+#
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import optparse
+import textwrap
+
+TEMPLATE = """\
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file was generated from .js source files by GYP.  If you
+// want to make changes to this file you should either change the
+// javascript source files or the GYP script.
+
+namespace %(namespace)s {
+
+const char %(var_name)s[] = {
+%(c_array)s
+};
+
+} // namespace %(namespace)s
+"""
+
+
+def ToCArray(byte_sequence):
+    result = []
+    for chr in byte_sequence:
+        result.append(str(ord(chr)))
+    joined = ", ".join(result)
+    return textwrap.fill(joined, 80)
+
+
+def JS2C(source, target, namespace, var_name):
+    input = open(source, "r")
+    source_bytes = input.read()
+
+    template_params = {
+        "namespace": namespace,
+        "var_name": var_name,
+        "c_array": ToCArray(source_bytes)
+    }
+
+    output = open(target, "wb")  # don't output CRLF on Windows
+    output.write(TEMPLATE % template_params)
+    output.close()
+
+
+parser = optparse.OptionParser()
+parser.set_usage("""js2c source.js out.cpp namespace var_name
+    sources.js: input JS file.
+    out.cpp: C++ code to be generated.
+    namespace: namespace the array will be declared in.
+    varName: the name of the variable for the array.
+    """)
+(options, args) = parser.parse_args()
+
+JS2C(args[0], args[1], args[2], args[3])