__init__.py 文件源码

def noneSpecialFunction(cv):
    """If the old type is 'None' (which won't show up in the original), move up in the AST to get the metadata"""
    if (not isinstance(cv, AddVector)) and cv.oldSubtree == None:
        cvCopy = cv.deepcopy()
        if cv.path[0] == ('value', 'Return'):
            cv.oldSubtree = deepcopy(cvCopy.traverseTree(cv.start))
            cv.newSubtree = ast.Return(cv.newSubtree)
            cv.path = cv.path[1:]
        elif cv.path[0] == ('value', 'Name Constant'):
            cv.oldSubtree = deepcopy(cvCopy.traverseTree(cv.start))
            cv.newSubtree = ast.NameConstant(cv.newSubtree)
            cv.path = cv.path[1:]
        elif cv.path[0] in [('lower', 'Slice'), ('upper', 'Slice'), ('step', 'Slice')]:
            tmpNew = cv.newSubtree
            cvCopy = cv.deepcopy()
            cv.oldSubtree = deepcopy(cvCopy.traverseTree(cv.start))
            cv.newSubtree = deepcopy(cv.oldSubtree) # use the same slice
            if cv.path[0][0] == 'lower':
                cv.newSubtree.lower = tmpNew
            elif cv.path[0][0] == 'upper':
                cv.newSubtree.upper = tmpNew
            else:
                cv.newSubtree.step = tmpNew
            cv.path = cv.path[1:] # get rid of None and the val
        else:
            log("Individualize\tmapEdit\tMissing option in None special case 1: " + str(cv.path[0]), "bug")
    elif cv.oldSubtree == "None":
        cv.path = cv.path[1:] # get rid of None and the id
        cvCopy = cv.deepcopy()
        cv.oldSubtree = deepcopy(cvCopy.traverseTree(cv.start))
        if cv.path[0] == ('value', 'Return'):
            cv.newSubtree = ast.Return(ast.Name(cv.newSubtree, ast.Load()))
        else:
            log("Individualize\tmapEdit\tMissing option in None special case 2: " + str(cv.path[0]), "bug")
        cv.path = cv.path[1:]
    return cv