2016-05-18 0:54 GMT+03:00 mister fish <[email protected]>:
> Hi, I don't have special knowledge of vimscript, but it appears to me that
> this is the expected behavior. I don't believe that the function stores the
> information about the dictionary it lives in; also, if it lives in many
> dictionaries, I would assume it's still just one function reference and not
> copies. In Javascript for example it works exactly this way.
>
Not function. `dict.func` (as well as `dict['func']`) is now a equivalent
of `function(get(dict, 'func'), dict)`: indexing a dictionary creates a
partial. So Andrey expected to store this partial in a dictionary and
retrieve as-is.
To actually do this one needs to use `get(dict, 'func')` now: this
retrieves exactly what is stored in the dictionary. In Python partials are
also not created automatically: `pyeval('vim.bindeval("dict")["func"]')`
will return a copy of original partial, not create the new one with
different binding.
> These also do what I expect:
>
> function! Callback_Test2()
> function! GetColor() dict
> return self.color
> endfunction
> let reddog = { 'color': 'red', 'get_color': function('GetColor') }
> let bluedog = { 'color': 'blue', 'get_color': function('GetColor') }
> echomsg "First dog is " . reddog.get_color()
> " --- prints blue, not red.
> echomsg "Second dog is " . bluedog.get_color()
> endfunction
>
> function! Callback_Test3()
> let reddog = { 'color': 'red' }
> function! reddog.get_color()
> return self.color
> endfunction
> let bluedog = { 'color': 'blue', 'get_color': reddog.get_color }
> echomsg "First dog is " . reddog.get_color()
> " --- and do does this:
> echomsg "Second dog is " . bluedog.get_color()
> endfunction
>
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