obvious.py 文件源码

def Subscript_default(t, x):
    assert isinstance(x.slice, ast.Index)
    v = x.slice.value
    if isinstance(v, ast.UnaryOp) and isinstance(v.op, ast.USub):
        return JSSubscript(
            JSCall(JSAttribute(x.value, 'slice'), [v]),
            JSNum(0))
    return JSSubscript(x.value, v)