Fix highlight errors when lsp crash or stop (#864)
* Fix highlight errors when lsp crash or stop It adds a check wether the client is still available before highlighting. If the client is not there anymore it returns `true` to unregister the autocommand This fix the `method textDocument/documentHighlight is not supported by any of the servers registered for the current buffer` errors when doing a LspRestart or the server crashes * Delete the highlight autocommands in the LspDetatch event * Only delete autocmds for the current buffer with the group name * Simplify clearing the autocommands --------- Co-authored-by: Francis Belanger <francis.belanger@ubisoft.com>
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					@ -514,13 +514,16 @@ require('lazy').setup({
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          -- When you move your cursor, the highlights will be cleared (the second autocommand).
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					          -- When you move your cursor, the highlights will be cleared (the second autocommand).
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          local client = vim.lsp.get_client_by_id(event.data.client_id)
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					          local client = vim.lsp.get_client_by_id(event.data.client_id)
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          if client and client.server_capabilities.documentHighlightProvider then
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					          if client and client.server_capabilities.documentHighlightProvider then
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					            local highlight_augroup = vim.api.nvim_create_augroup('kickstart-lsp-highlight', { clear = true })
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            vim.api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
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					            vim.api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
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              buffer = event.buf,
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					              buffer = event.buf,
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					              group = highlight_augroup,
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              callback = vim.lsp.buf.document_highlight,
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					              callback = vim.lsp.buf.document_highlight,
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            })
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					            })
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            vim.api.nvim_create_autocmd({ 'CursorMoved', 'CursorMovedI' }, {
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					            vim.api.nvim_create_autocmd({ 'CursorMoved', 'CursorMovedI' }, {
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              buffer = event.buf,
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					              buffer = event.buf,
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					              group = highlight_augroup,
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              callback = vim.lsp.buf.clear_references,
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					              callback = vim.lsp.buf.clear_references,
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            })
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					            })
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          end
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					          end
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					@ -537,6 +540,14 @@ require('lazy').setup({
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        end,
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					        end,
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      })
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					      })
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					      vim.api.nvim_create_autocmd('LspDetach', {
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					        group = vim.api.nvim_create_augroup('kickstart-lsp-detach', { clear = true }),
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					        callback = function(event)
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					          vim.lsp.buf.clear_references()
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					          vim.api.nvim_clear_autocmds { group = 'kickstart-lsp-highlight', buffer = event.buf }
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					        end,
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					      })
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      -- LSP servers and clients are able to communicate to each other what features they support.
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					      -- LSP servers and clients are able to communicate to each other what features they support.
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      --  By default, Neovim doesn't support everything that is in the LSP specification.
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					      --  By default, Neovim doesn't support everything that is in the LSP specification.
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      --  When you add nvim-cmp, luasnip, etc. Neovim now has *more* capabilities.
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					      --  When you add nvim-cmp, luasnip, etc. Neovim now has *more* capabilities.
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