73 lines
3 KiB
Fennel
73 lines
3 KiB
Fennel
;; Based on https://github.com/nvim-lua/lsp-status.nvim
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(let [mod {}
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current-function-symbols {:Class ""
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:Enum "ﴳ"
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:Function ""
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:Interface ""
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:Method ""
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:Module ""
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:Namespace ""
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:Package ""
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:Struct "ﴳ"}
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lsp-proto vim.lsp.protocol
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set-bufvar vim.api.nvim_buf_set_var
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augroup (vim.api.nvim_create_augroup :NifocLsp {:clear true})
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aucmd vim.api.nvim_create_autocmd]
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(fn extract-symbols [acc items]
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(if (= items nil)
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acc
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(do
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(each [_ item (ipairs items)]
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(local kind (or (. lsp-proto.SymbolKind item.kind) :Unknown))
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(var sym-range nil)
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(if item.location (set sym-range item.location.range)
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item.range (set sym-range item.range))
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(when sym-range
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(do
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(set sym-range.start.line (+ sym-range.start.line 1))
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(set sym-range.end.line (+ sym-range.end.line 1))))
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(table.insert acc {:range sym-range : kind :text item.name})
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(when item.children
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(extract-symbols item.children acc)))
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acc)))
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(fn current-function-symbol? [item]
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(and item.range (not= (. current-function-symbols item.kind) nil)))
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(fn cursor-in-range? [cursor sym]
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(let [line (. cursor 1)
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char (. cursor 2)]
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(if (or (< line sym.start.line) (> line sym.end.line)) false
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(and (= line sym.start.line) (< char sym.start.character)) false
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(and (= line sym.end.line) (> char sym.end.character)) false
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true)))
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(fn handle-update-current-context [err result ctx config]
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(set-bufvar ctx.bufnr :nifoc_lsp_current_context "")
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(when (and (= err nil) (= (type result) :table))
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(let [filtered-symbols (->> result (extract-symbols [])
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(vim.tbl_filter current-function-symbol?))
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cursor-pos (vim.api.nvim_win_get_cursor 0)]
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(for [i (length filtered-symbols) 1 -1]
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(local sym (. filtered-symbols i))
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(when (cursor-in-range? cursor-pos sym.range)
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(let [current-context (.. (. current-function-symbols sym.kind) " "
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sym.text)]
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(set-bufvar ctx.bufnr :nifoc_lsp_current_context current-context)))))))
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(fn update-current-context [bufnr]
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(let [params {:textDocument (vim.lsp.util.make_text_document_params bufnr)}]
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(vim.lsp.buf_request bufnr :textDocument/documentSymbol params
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handle-update-current-context)))
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(fn mod.on-attach [client bufnr]
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(when client.server_capabilities.documentSymbolProvider
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(aucmd [:CursorHold]
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{:callback #(update-current-context bufnr)
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:buffer bufnr
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:group augroup
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:desc "Update current function variable"})))
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mod)
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