gecko/dom/bindings/ExampleGen.py
Boris Zbarsky ac7e3e09f9 Bug 796983 part 2. Add a way to generate an example class declaration for a given WebIDL interface. r=jst
We mark constructors as static in the parser because they are.  This
allows us to just use the isStatic() for the IDLMember to mark our
declarations static.

To generate an example interface implementation, just "make
interfacename-example" in $objdir/dom/bindings.  This will place files
called interfacename-example.h and interfacename-example.cpp in that
directory.  For example, "make XMLHttpRequest-example" will get you
$objdir/dom/bindings/XMLHttpRequest-example.h and
$objdir/dom/bindings/XMLHttpRequest-example.cpp.

Attribute getters currently default to const methods, while setters
and operations default to non-const methods.

--HG--
rename : dom/bindings/BindingGen.py => dom/bindings/ExampleGen.py
2012-10-17 17:01:55 -04:00

53 lines
1.6 KiB
Python

# 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/.
import os
import cPickle
import WebIDL
from Configuration import *
from Codegen import CGExampleRoot, replaceFileIfChanged
# import Codegen in general, so we can set a variable on it
import Codegen
def generate_interface_example(config, interfaceName):
"""
|config| Is the configuration object.
|interfaceName| is the name of the interface we're generating an example for.
"""
root = CGExampleRoot(config, interfaceName)
exampleHeader = interfaceName + "-example.h"
exampleImpl = interfaceName + "-example.cpp"
replaceFileIfChanged(exampleHeader, root.declare())
replaceFileIfChanged(exampleImpl, root.define())
def main():
# Parse arguments.
from optparse import OptionParser
usagestring = "usage: %prog configFile interfaceName"
o = OptionParser(usage=usagestring)
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 = os.path.normpath(args[0])
interfaceName = args[1]
# Load the parsing results
f = open('ParserResults.pkl', 'rb')
parserData = cPickle.load(f)
f.close()
# Create the configuration data.
config = Configuration(configFile, parserData)
# Generate the example class.
generate_interface_example(config, interfaceName)
if __name__ == '__main__':
main()