if __name__ == '__main__':
parser = argparse.ArgumentParser(description='AST optimizer')
parser.add_argument('input',
type=str,
metavar='Input_File',
help='Input .c file path')
parser.add_argument('output',
type=str,
metavar='Output_File',
help='Output .c file path')
parser.add_argument('--debug', action='store_true')
args = parser.parse_args()
src_path = args.input
target_path = args.output
parser = Parser(debug=args.debug)
ast = parser.run(src_path)
if args.debug:
printVisitor = PrintVisitor()
ast.accept(printVisitor)
print(printVisitor)
constantFoldingVisitor = ConstantFoldingVisitor(debug=args.debug,
mark_used=True)
ast.accept(constantFoldingVisitor)
ast.accept(constantFoldingVisitor)
writeVisitor = WriteVisitor(dead_code_elimination=True)
s = ast.accept(writeVisitor)
f = open(target_path, 'w')
f.write(s)
f.close()
LINE_RGEX = re.compile('^\d+$')
VARIABLE_RGEX = re.compile('^[a-zA-Z_$][a-zA-Z_$0-9]*$')
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='AST optimizer')
parser.add_argument('input',
type=str,
metavar='Input_File',
help='Input .c file path')
parser.add_argument('--debug', action='store_true')
args = parser.parse_args()
sys.setrecursionlimit(2**16)
try:
parser = Parser(debug=args.debug)
ast = parser.run(args.input)
if args.debug:
printVisitor = PrintVisitor()
ast.accept(printVisitor)
print(printVisitor)
flowVisitor = InterpreterVisitor(debug=args.debug)
ast.accept(flowVisitor)
while True:
input_str = input(
str(flowVisitor.linenos) + '>>' if args.debug else '>>')
if CLI_NEXT_REGEX.search(input_str):
m = CLI_NEXT_REGEX.match(input_str)
lines_str = m.groups()[0]
if lines_str is not None and LINE_RGEX.search(
lines_str) is None:
print('Incorrect command usage : try ‘next [lines]')
