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main.py
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main.py
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import sys
import scanner
import parser
from TreePrinter import TreePrinter
from TypeChecker import TypeChecker, Success
import Interpreter
def run(filename, output=True):
file = open(filename, "r")
prsr = parser.parser
text = file.read()
ast = prsr.parse(text, lexer=scanner.lexer)
# if ast is not None:
# ast.printTree()
# print()
typeChecker = TypeChecker()
checkRes = typeChecker.visit(ast)
if output:
print(checkRes)
if isinstance(checkRes, Success):
return ast.accept(Interpreter.Interpreter(output))
if __name__ == '__main__':
try:
filename = sys.argv[1] if len(sys.argv) > 1 else "example1.m"
run(filename)
except IOError:
print("Cannot open {0} file".format(filename))
sys.exit(0)