forked from xuos/xiuos
127 lines
3.9 KiB
Python
127 lines
3.9 KiB
Python
#!/usr/bin/env python
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# Copyright JS Foundation and other contributors, http://js.foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# This file converts ./js/*.js to a C-array in ./source/jerry-targetjs.h file
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import argparse
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import glob
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import os
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import re
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from gen_c_source import LICENSE, format_code
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HEADER = '''#ifndef JERRY_TARGETJS_H
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#define JERRY_TARGETJS_H
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'''
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FOOTER = '''
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#endif
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'''
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NATIVE_STRUCT = '''
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struct js_source_all {
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const char* name;
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const char* source;
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const int length;
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};
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#define DECLARE_JS_CODES \\
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struct js_source_all js_codes[] = \\
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{ \\'''
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def extract_name(path):
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special_chars = re.compile(r'[-\\?\'".]')
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return special_chars.sub('_', os.path.splitext(os.path.basename(path))[0])
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def reduce_code(code):
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code = re.sub(r"/\*.*?\*/", "", code, flags=re.DOTALL) # remove all occurance streamed comments
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code = re.sub(r"//.*?\n", "", code) # remove all occurance singleline comments
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code = re.sub('\n+', '\n', re.sub('\n +', '\n', code)) # remove white spaces
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return code
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def js_to_native_code(path, name, build_type):
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with open(path, 'r') as js_source:
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code = js_source.read()
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if build_type != 'debug':
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code = reduce_code(code)
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data = format_code(code, 1, 2)
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native_code = """const static char {0}_n[] = "{0}";
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const static char {0}_s[] =
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{{
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{1}
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}};
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const static int {0}_l = {2};
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""".format(name, data, len(code))
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return native_code
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def main():
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parser = argparse.ArgumentParser(description="js2c")
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parser.add_argument('--build-type', help='build type', default='release', choices=['release', 'debug'])
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parser.add_argument('--ignore', help='files to ignore', dest='ignore_files', default=[], action='append')
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parser.add_argument('--no-main',
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help="don't require a 'main.js' file",
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dest='main',
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action='store_false',
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default=True)
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parser.add_argument('--js-source',
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dest='js_source_path',
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default='./js',
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help='Source directory of JavaScript files" (default: %(default)s)')
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parser.add_argument('--dest',
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dest='output_path',
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default='./source',
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help="Destination directory of 'jerry-targetjs.h' (default: %(default)s)")
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script_args = parser.parse_args()
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gen_line = "/* This file is generated by %s. Please do not modify. */" % os.path.basename(__file__)
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gen_output = [LICENSE, "", gen_line, "", HEADER]
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gen_structs = [NATIVE_STRUCT]
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if script_args.main:
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gen_structs.append(' {{ {0}_n, {0}_s, {0}_l }}, \\'.format("main"))
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files = glob.glob(os.path.join(script_args.js_source_path, '*.js'))
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for path in files:
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if os.path.basename(path) not in script_args.ignore_files:
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name = extract_name(path)
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gen_output.append(js_to_native_code(path, name, script_args.build_type))
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if name != 'main':
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gen_structs.append(' {{ {0}_n, {0}_s, {0}_l }}, \\'.format(name))
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gen_structs.append(' { NULL, NULL, 0 } \\\n};')
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gen_output.append("\n".join(gen_structs))
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gen_output.append(FOOTER)
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with open(os.path.join(script_args.output_path, 'jerry-targetjs.h'), 'w') as gen_file:
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gen_file.write("\n".join(gen_output))
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if __name__ == "__main__":
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main()
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