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#!/usr/bin/env python3
#
# Copyright (c) 2014, 2015 Apple Inc. All rights reserved.
# Copyright (c) 2014 University of Washington. 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.
# This script generates C++ bindings for JavaScript builtins.
# Generators for individual files are located in the builtins/ directory.
import fnmatch
import logging
import optparse
import os
import sys
sys.path.append(os.path.join(os.path.dirname(__file__), 'wkbuiltins'))
logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.ERROR)
log = logging.getLogger('global')
from lazywriter import LazyFileWriter
from wkbuiltins import *
def concatenated_output_filename(builtins_files, framework_name, generate_only_wrapper_files):
if generate_only_wrapper_files:
return framework_name + 'JSBuiltins.h-result'
return os.path.basename(builtins_files[0]) + '-result'
def do_open(file, mode):
return open(file, mode, encoding="UTF-8")
def generate_bindings_for_builtins_files(builtins_files=[],
output_path=None,
concatenate_output=False,
combined_output=False,
generate_only_wrapper_files=False,
framework_name="",
force_output=False):
generators = []
model = BuiltinsCollection(framework_name=framework_name)
for filepath in builtins_files:
with do_open(filepath, "r") as file:
file_text = file.read()
file_name = os.path.basename(filepath)
# If this is a test file, then rewrite the filename to remove the
# test running options encoded into the filename.
if file_name.startswith(framework_name):
(_, object_name, _) = file_name.split('-')
file_name = object_name + '.js'
model.parse_builtins_file(file_name, file_text)
if combined_output:
log.debug("Using generator style: combined files for all builtins.")
generators.append(BuiltinsCombinedHeaderGenerator(model))
generators.append(BuiltinsCombinedImplementationGenerator(model))
else:
log.debug("Using generator style: single files for each builtin.")
if generate_only_wrapper_files:
generators.append(BuiltinsWrapperHeaderGenerator(model))
generators.append(BuiltinsWrapperImplementationGenerator(model))
generators.append(BuiltinsInternalsWrapperHeaderGenerator(model))
generators.append(BuiltinsInternalsWrapperImplementationGenerator(model))
else:
for object in model.objects:
generators.append(BuiltinsSeparateHeaderGenerator(model, object))
generators.append(BuiltinsSeparateImplementationGenerator(model, object))
log.debug("")
log.debug("Generating bindings for builtins.")
test_result_file_contents = []
for generator in generators:
output_filepath = os.path.join(output_path, generator.output_filename())
log.debug("Generating output file: %s" % generator.output_filename())
output = generator.generate_output()
log.debug("---")
log.debug("\n" + output)
log.debug("---")
if concatenate_output:
test_result_file_contents.append('### Begin File: %s' % generator.output_filename())
test_result_file_contents.append(output)
test_result_file_contents.append('### End File: %s' % generator.output_filename())
test_result_file_contents.append('')
else:
log.debug("Writing file: %s" % output_filepath)
output_file = LazyFileWriter(output_filepath, force_output)
output_file.write(output)
output_file.close()
if concatenate_output:
filename = concatenated_output_filename(builtins_files, framework_name, generate_only_wrapper_files)
output_filepath = os.path.join(output_path, filename)
log.debug("Writing file: %s" % output_filepath)
output_file = LazyFileWriter(output_filepath, force_output)
output_file.write('\n'.join(test_result_file_contents))
output_file.close()
if __name__ == '__main__':
allowed_framework_names = ['JavaScriptCore', 'WebCore']
cli_parser = optparse.OptionParser(usage="usage: %prog [options] Builtin1.js [, Builtin2.js, ...]")
cli_parser.add_option("-i", "--input-directory", help="If specified, generates builtins from all JavaScript files in the specified directory in addition to specific files passed as arguments.")
cli_parser.add_option("-o", "--output-directory", help="Directory where generated files should be written.")
cli_parser.add_option("--framework", type="choice", choices=allowed_framework_names, help="Destination framework for generated files.")
cli_parser.add_option("--force", action="store_true", help="Force output of generated scripts, even if nothing changed.")
cli_parser.add_option("--combined", action="store_true", help="Produce one .h/.cpp file instead of producing one per builtin object.")
cli_parser.add_option("--wrappers-only", action="store_true", help="Produce .h/.cpp wrapper files to ease integration of the builtins.")
cli_parser.add_option("-v", "--debug", action="store_true", help="Log extra output for debugging the generator itself.")
cli_parser.add_option("-t", "--test", action="store_true", help="Enable test mode.")
arg_options, arg_values = cli_parser.parse_args()
if len(arg_values) == 0 and not arg_options.input_directory:
raise ParseException("At least one input file or directory expected.")
if not arg_options.output_directory:
raise ParseException("Missing output directory.")
if arg_options.debug:
log.setLevel(logging.DEBUG)
input_filepaths = arg_values[:]
if arg_options.input_directory:
for filepath in os.listdir(arg_options.input_directory):
input_filepaths.append(os.path.join(arg_options.input_directory, filepath))
input_filepaths = sorted([name for name in input_filepaths if fnmatch.fnmatch(name, '*.js')])
options = {
'output_path': arg_options.output_directory,
'framework_name': arg_options.framework,
'combined_output': arg_options.combined,
'generate_only_wrapper_files': arg_options.wrappers_only,
'force_output': arg_options.force,
'concatenate_output': arg_options.test,
}
log.debug("Generating code for builtins.")
log.debug("Parsed options:")
for option, value in list(options.items()):
log.debug(" %s: %s" % (option, value))
log.debug("")
log.debug("Input files:")
for filepath in input_filepaths:
log.debug(" %s" % filepath)
log.debug("")
try:
generate_bindings_for_builtins_files(builtins_files=input_filepaths, **options)
except ParseException as e:
if arg_options.test:
log.error(str(e))
else:
raise # Force the build to fail.
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