在@TravisBrown关于使用无形的ADT枚举的令人敬畏的question之后，我留下了以下代码片段：
implicitly[EnumerableAdt[Foo]].values
我想在一个方法中封装它，这样我在每次调用后都不需要.values（这对我来说似乎是一个更干净的API）。 但是我似乎无法做对。每当我尝试封装implicitly[EnumerableAdt[Foo]]时，我都会得到隐式解析错误。
我曾经尝试过的，对我来说最有意义的是，例如：
def imply[T](implicit ev: T):Set[T] = implicitly[EnumerableAdt[T]].values
当然，ev对我来说没有任何意义。
我不是类型级编程方面的专家。
答案 0 :(得分：1)
如果你看一下implicitly[X]的定义，你可以看到在范围内需要一个类型为Function FnImageInsert(strCompleteImagePath)
' This code would be correct if you run Word from Excel
Dim objWord As Word.Application
Dim objDoc As Word.Document
Dim objSelection As Word.Object
' If you run this code from Word you don't need to declare
' the application and the objects don't need to specify Word
' Dim objDoc As Document
' Dim objSelection As Object
Dim Shp As Shape
' omit this object if you run this code from within Word
Set objWord = CreateObject("Word.Application")
Set objDoc = objWord.Documents.Open("C:\test\testimage.docx")
' it's the window you can make visible, not the application
' the application is always invisible
' objWord.Visible = True
' Selection Class: This looks like a little code from VB (this is VBA)
' I don't know if this actually works. I never saw this before.
' in fact, there is one "Selection" in Word which is the currently
' selected range in the ActiveDocument
Set objSelection = objWord.Selection
' However, since you already have the 'Selection' object, why do you need
' a copy of it in 'objSelection'?
' the parentheses are superfluous here:
objSelection.TypeText (vbCrLf & "One Picture will be inserted here...." & vbCrLf)
' Having a problem below... I get Object required error (424)
' Of course: Shp is a Shape (see the Dim statement)
' You are adding an InlineShape and assigning it to Shp, which cuses the error
Set Shp = ActiveDocument.InlineShapes.AddPicture(FileName:=strCompleteImagePath, SaveWithDocument:=True).ConvertToShape
' If you wish to convert the Inlineshape to Shape, you should do this
' by setting the WrapText property after creation.
' But why not create a shape rightaway, if you don't want an InlineShape?
' You can't "Close" the Selection object
' In fact, there always is a selection while the document is open
' and all you can do is move it or dete4rmine its size.
' Close objSelection
End Function
的隐式参数。在您的示例中，您在范围内有隐式X，这不足以调用ev: T！请改为尝试以下定义：
implicitly[EnumerableAdt[T]]