transform.py 文件源码

def _(item, body=None, top=False):
    new_body = []
    if scan(item.body, _ast.Break):
        body.extend(transform_break(item))
        return True
    elif scan(item.body, _ast.Continue):
        body.extend(transform_continue(item))
        return True
    elif _transform(item.body, body=new_body, top=True):
        item.body = new_body
        body.append(item)
        return True
    elif not isinstance(item.iter, _ast.Name):
        syntax = ast.parse('tmpfor{} = _'.format(randint(0, 2**32))).body[0]
        syntax.value = item.iter
        item.iter = syntax.targets[0]
        body.extend((syntax, item))
        return True
    elif top:
        body.append(item)
        return False