Python parse示例

示例#1

文件： itInterpreter.py 项目： roflolilolmao/thirdYear

                arg1 = valueOfToken(stack.pop())
            else:
                arg1 = 0
            stack.append(operations[node.op](arg1, arg2))
        elif node.__class__ == AST.AssignNode:
            val = valueOfToken(stack.pop())
            name = stack.pop()
            vars[name] = val
        elif node.__class__ == AST.WhileNode:
            cond = valueOfToken(stack.pop())
            if cond:
                node = node.next[0]
            else:
                node = node.next[1]
            continue
        if node.next:
            node = node.next[0]
        else:
            node = None


if __name__ == "__main__":
    from parser5 import parse
    from threader import thread
    import sys
    print('hammer')
    prog = open(sys.argv[1]).read()
    ast = parse(prog)
    entry = thread(ast)

    execute(entry)

示例#2

文件： itInterpreter.py 项目： JorisMonnet/Compilator

            arg2 = valueOfToken(stack.pop())
            if node.nbargs == 2:
                arg1 = valueOfToken(stack.pop())
            else:
                arg1 = 0
            stack.append(operations[node.op](arg1, arg2))
        elif node.__class__ == AST.AssignNode:
            val = valueOfToken(stack.pop())
            name = stack.pop()
            vars[name] = val
        elif node.__class__ == AST.WhileNode:
            cond = valueOfToken(stack.pop())
            if cond:
                node = node.next[0]
            else:
                node = node.next[1]
            continue
        if node.next:
            node = node.next[0]
        else:
            node = None


if __name__ == "__main__":
    from parser5 import parse
    from thread import thread
    import sys
    prog = open(sys.argv[1]).read()
    ast = parse(prog)
    entry = thread(ast)
    execute(entry)