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workspace/willRenameFiles - destination file must exist before #2522

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@przepompownia

I don't know how many LSP clients can send workspace/willRenameFiles request and handle the response. Neovim comes with no handler and I didn't find any plugin for it.

On the other side I can send such request and would see the response if it worked. In

$document = $this->locator->get($file);

I get TextDocumentNotFound because the new file doesn't exist yet. Is it intentional?

I check it with

local function willRenameCurrentBuffer(newPath)
  if not vim.startswith(newPath, '/') then
    newPath = vim.fs.joinpath(vim.uv.cwd(), newPath) -- replace vim.uv with vim.loop on <=0.9
  end
  local response = vim.lsp.buf_request_sync(0, 'workspace/willRenameFiles', {files = {{
    oldUri = vim.uri_from_bufnr(0), -- the current file
    newUri = vim.uri_from_fname(newPath)
  }}})

  vim.print(response)
end

vim.api.nvim_create_user_command('WillRenameCurrentBuffer', function (opts)
  willRenameCurrentBuffer(opts.args)
end, {nargs = 1, complete = 'file'})

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