Cargoify servo

components/script/dom/bindings/codegen/GlobalGen.py

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+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this file,
+# You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# We do one global pass over all the WebIDL to generate our prototype enum
+# and generate information for subsequent phases.
+
+import sys
+sys.path.append("./parser/")
+sys.path.append("./ply/")
+import os
+import cStringIO
+import WebIDL
+import cPickle
+from Configuration import *
+from CodegenRust import GlobalGenRoots, replaceFileIfChanged
+# import Codegen in general, so we can set a variable on it
+import Codegen
+
+def generate_file(config, name, filename):
+    root = getattr(GlobalGenRoots, name)(config)
+    code = root.define()
+
+    if replaceFileIfChanged(filename, code):
+        print "Generating %s" % (filename)
+    else:
+        print "%s hasn't changed - not touching it" % (filename)
+
+def main():
+    # Parse arguments.
+    from optparse import OptionParser
+    usageString = "usage: %prog [options] webidldir [files]"
+    o = OptionParser(usage=usageString)
+    o.add_option("--cachedir", dest='cachedir', default=None,
+                 help="Directory in which to cache lex/parse tables.")
+    o.add_option("--verbose-errors", action='store_true', default=False,
+                 help="When an error happens, display the Python traceback.")
+    (options, args) = o.parse_args()
+
+    if len(args) < 2:
+        o.error(usageString)
+
+    configFile = args[0]
+    baseDir = args[1]
+    fileList = args[2:]
+
+    # Parse the WebIDL.
+    parser = WebIDL.Parser(options.cachedir)
+    for filename in fileList:
+        fullPath = os.path.normpath(os.path.join(baseDir, filename))
+        f = open(fullPath, 'rb')
+        lines = f.readlines()
+        f.close()
+        parser.parse(''.join(lines), fullPath)
+    parserResults = parser.finish()
+
+    # Write the parser results out to a pickle.
+    resultsFile = open('ParserResults.pkl', 'wb')
+    cPickle.dump(parserResults, resultsFile, -1)
+    resultsFile.close()
+
+    # Load the configuration.
+    config = Configuration(configFile, parserResults)
+
+    # Generate the prototype list.
+    generate_file(config, 'PrototypeList', 'PrototypeList.rs')
+
+    # Generate the common code.
+    generate_file(config, 'RegisterBindings', 'RegisterBindings.rs')
+
+    # Generate the type list.
+    generate_file(config, 'InterfaceTypes', 'InterfaceTypes.rs')
+
+    # Generate the type list.
+    generate_file(config, 'InheritTypes', 'InheritTypes.rs')
+
+    # Generate the module declarations.
+    generate_file(config, 'Bindings', 'Bindings/mod.rs')
+
+    generate_file(config, 'UnionTypes', 'UnionTypes.rs')
+
+if __name__ == '__main__':
+    main()