import sys
import ply.yacc as yacc
from Cparser import Cparser
from TypeChecker import TypeChecker
from Interpreter import Interpreter
if __name__ == '__main__':
try:
filename = sys.argv[1] if len(sys.argv) > 1 else "example.txt"
input_file = open(filename, "r")
except IOError:
print("Cannot open {0} file".format(filename))
sys.exit(0)
Cparser = Cparser()
parser = yacc.yacc(module=Cparser)
text = input_file.read()
ast = parser.parse(text, lexer=Cparser.scanner)
checker = TypeChecker()
types_ok = checker.generic_visit(ast)
#~ print(ast)
if(types_ok):
interpreter = Interpreter()
interpreter.generic_execute(ast)
