RFC: What do you think about relying on vim-rplugin for keeping Vim 8 compatibility?

[lambdalisue]

Problems summary

Currently denite.vim support Vim 8 by extending vim module directly but

• vim is shared to all plugins so once your approach got famous, there would be tons of variation of vim.call() implementations and each other will be conflict
• vim.vars, vim.options or whatever returns bytes instead of str in Python 3 and it would cause Unicode encode/decode error

  RFC

Recently I made vim-rplugin to solve all problems above. So what do you think about relying on that plugin to support Vim 8? If you are OK with this idea, I will implement the feature sometime ;-)

Pros.

• You can remove most of code for Vim 8 so the code become more simple
• It wrap vim module rather than extend so that vim.call() always returns what you want.
• It automatically decode bytes to str so you don't have to change codes for Neovim and Vim 8

  Cons.

• User who want to use denite.nvim in Vim 8 need to install lambdalisue/vim-rplugin as well.
• Performance may decrease in Vim 8 while vim-rplugin use Proxy strategy

[Shougo]

I don't want to depend on vim-rplugin. But I can include vim-rplugin into denite.nvim.

[lambdalisue]

Ok. Fair enough. vim-rplugin is MIT so you can copy if you like the way :-)

[lambdalisue]

In case while I forgot to mention, vim-rplugin is only required for people who want to use the plugin in vim8 and neovim user never need that.

That why I decide to rely on that plugin for further my products while I decide to use rplugin strategy for main and vim8 support is now optional feature for me.

In case if you mis-understood and thought the vim-rplugin dependency exist also for neovim users.

[Shougo]

I have included rplugin into denite.nvim. It seems better. Thanks.