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Unified Diff: core/scripts/in_generator.py

Issue 9418050: IDL roll to multivm@1242 (Closed) Base URL: https://dart.googlecode.com/svn/third_party/WebCore
Patch Set: Created 10 years, 10 months ago
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Index: core/scripts/in_generator.py
diff --git a/core/scripts/in_generator.py b/core/scripts/in_generator.py
new file mode 100644
index 0000000000000000000000000000000000000000..1ee994a5b6a63c694359bcf880c8486965f3b14a
--- /dev/null
+++ b/core/scripts/in_generator.py
@@ -0,0 +1,90 @@
+# Copyright (C) 2013 Google 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:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * 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.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+# OWNER 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.
+
+import os.path
+import shutil
+
+from in_file import InFile
+
+
+class Writer(object):
+ # Subclasses should override.
+ class_name = None
+ defaults = None
+ default_parameters = None
+
+ def __init__(self, in_file_path):
+ self.in_file = InFile.load_from_path(in_file_path, self.defaults, self.default_parameters)
+
+ # Subclasses should override.
+ def generate_header(self):
+ raise NotImplementedError
+
+ # Subclasses should override.
+ def generate_implementation(self):
+ raise NotImplementedError
+
+ def _forcibly_create_text_file_at_path_with_contents(self, file_path, contents):
+ # FIXME: This method can be made less force-full anytime after 6/1/2013.
+ # A gyp error was briefly checked into the tree, causing
+ # a directory to have been generated in place of one of
+ # our output files. Clean up after that error so that
+ # all users don't need to clobber their output directories.
+ shutil.rmtree(file_path, ignore_errors=True)
+ # The build system should ensure our output directory exists, but just in case.
+ directory = os.path.dirname(file_path)
+ if not os.path.exists(directory):
+ os.makedirs(directory)
+
+ with open(file_path, "w") as file_to_write:
+ file_to_write.write(contents)
+
+ def write_header(self, output_dir):
+ header_path = os.path.join(output_dir, self.class_name + ".h")
+ self._forcibly_create_text_file_at_path_with_contents(header_path, self.generate_header())
+
+ def write_implmentation(self, output_dir):
+ implmentation_path = os.path.join(output_dir, self.class_name + ".cpp")
+ self._forcibly_create_text_file_at_path_with_contents(implmentation_path, self.generate_implementation())
+
+
+class Maker(object):
+ def __init__(self, writer_class):
+ self._writer_class = writer_class
+
+ def main(self, argv):
+ script_name = os.path.basename(argv[0])
+ args = argv[1:]
+ if len(args) < 1:
+ print "USAGE: %i INPUT_FILE [OUTPUT_DIRECTORY]" % script_name
+ exit(1)
+ output_dir = args[1] if len(args) > 1 else os.getcwd()
+
+ writer = self._writer_class(args[0])
+ writer.write_header(output_dir)
+ writer.write_implmentation(output_dir)

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