pebble/third_party/jerryscript/targets/tools/js2c.py
2025-01-27 11:38:16 -08:00

156 lines
4.3 KiB
Python
Executable file

#!/usr/bin/env python
# Copyright 2015-2016 Samsung Electronics Co., Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# This file converts ./js/*.js to a C-array in ./source/jerry_targetjs.h file
import sys
import glob
import os
import re
import argparse
special_chars = re.compile(r'[-\\?\'".]')
def extractName(path):
return special_chars.sub('_', os.path.splitext(os.path.basename(path))[0])
def writeLine(fo, content, indent=0):
buf = ' ' * indent + content + '\n'
fo.write(buf)
def regroup(l, n):
return [ l[i:i+n] for i in range(0, len(l), n) ]
def removeComments(code):
pattern = r'(\".*?\"|\'.*?\')|(/\*.*?\*/|//[^\r\n]*$)'
regex = re.compile(pattern, re.MULTILINE | re.DOTALL)
def _replacer(match):
if match.group(2) is not None:
return ""
else:
return match.group(1)
return regex.sub(_replacer, code)
def removeWhitespaces(code):
return re.sub('\n+', '\n', re.sub('\n +', '\n', code))
LICENSE = '''/* Copyright 2015-2016 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the \"License\");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an \"AS IS\" BASIS
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is generated by js2c.py. Please do not modify.
*/
'''
HEADER = '''#ifndef JERRY_TARGETJS_H
#define JERRY_TARGETJS_H
'''
FOOTER = '''
#endif
'''
OUT_PATH = './source/'
SRC_PATH = './js/'
parser = argparse.ArgumentParser(description="js2c")
parser.add_argument('build_type', help='build type', default='release', nargs='?')
parser.add_argument('--ignore', help='files to ignore', dest='ignore_files', default=[], action='append')
parser.add_argument('--no-main', help='don\'t require a main.js file', dest='main', action='store_false', default=True)
args = parser.parse_args()
# argument processing
buildtype = args.build_type
ignore_files = args.ignore_files
fout = open(OUT_PATH + 'jerry_targetjs.h', 'w')
fout.write(LICENSE);
fout.write(HEADER);
def exportOneFile(path, name):
fout.write('const static char ' + name + '_n[] = "' + name + '";\n')
fout.write('const static char ' + name + '_s[] =\n{\n')
fin = open(path, 'r');
code = fin.read() + '\0'
# minimize code when release mode
if buildtype != 'debug':
code = removeComments(code)
code = removeWhitespaces(code)
for line in regroup(code, 10):
buf = ', '.join(map(lambda ch: format(ord(ch),"#04x"), line))
if line[-1] != '\0':
buf += ','
writeLine(fout, buf, 1)
writeLine(fout, '};')
writeLine(fout, 'const static int ' + name + '_l = ' + str(len(code)-1) + ';')
writeLine(fout, '')
fin.close();
def exportOneName(name):
writeLine(fout, '{ ' + name + '_n, ' + name + '_s, ' + name + '_l }, \\', 1)
files = glob.glob(SRC_PATH + '*.js')
for path in files:
name = extractName(path)
if os.path.basename(path) not in ignore_files:
exportOneFile(path, name)
NATIVE_STRUCT = '''
struct js_source_all {
const char* name;
const char* source;
const int length;
};
#define DECLARE_JS_CODES \\
struct js_source_all js_codes[] = \\
{ \\
'''
fout.write(NATIVE_STRUCT)
if args.main:
exportOneName('main')
for filename in files:
name = extractName(filename)
if name != 'main' and os.path.basename(filename) not in ignore_files:
exportOneName(name)
writeLine(fout, '{ NULL, NULL, 0 } \\', 1)
writeLine(fout, '};')
fout.write(FOOTER)
fout.close()