R5ジェネレーターオブジェクトを使用してR5のクラスメソッドの定義を表示する公式の方法はありますか?
> cls <- setRefClass("cls", methods = list(f1 = function() {1}))
>
> # of course we can get the definition via the instance
> a1 <- new("cls")
> a1$f1
Class method definition for method f1()
function ()
{
1
}
<environment: 0x101d5d3f0>
>
> # but how to get the difinition via the generator object, i.e., cls?
> cls$f1
Error in envRefInferField(x, what, getClass(class(x)), selfEnv) :
‘f1’ is not a valid field or method name for reference class “refGeneratorSlot”
>
> # here is a workaround, but probably unofficial and no warranty for future behavior
> cls$def@refMethods$f1
Class method definition for method f1()
function ()
{
1
}