instructions.py 文件源码

def pop_assignment(stmnts, name):

    for i in range(len(stmnts)):
        stmnt = stmnts[i]
        if isinstance(stmnt, _ast.Assign) and len(stmnt.targets) == 1 \
            and isinstance(stmnt.targets[0], _ast.Name) \
            and isinstance(stmnt.targets[0].ctx, _ast.Store):
            if stmnt.targets[0].id == name:
                stmnts.pop(i)
                return stmnt.value

    return None