perf(highlite): remove `vim` imports
It's slower to import large tables like `vim.api` when you can just acces them from the globally available `vim` module.
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@ -4,18 +4,10 @@
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--- @module nvim-cartographer
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--- @alias highlite table
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--[[/* IMPORTS */]]
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local vim = vim
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local api = vim.api
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local exe = api.nvim_command
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local fn = vim.fn
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local go = vim.go
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--[[/* VARS */]]
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--- Which set of colors to use.
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local _USE_256 = tonumber(go.t_Co) > 255 or string.find(vim.env.TERM, '256')
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local _USE_256 = tonumber(vim.go.t_Co) > 255 or string.find(vim.env.TERM, '256')
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--- Indicating nothing for a highlight field.
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local _NONE = 'NONE'
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@ -92,7 +84,7 @@ local function tohex(rgb) return string.format('#%06x', rgb) end
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--- @return table
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local function use_background_with(attributes)
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return setmetatable(
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attributes[go.background],
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attributes[vim.go.background],
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{__index = attributes}
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)
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end
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@ -104,7 +96,7 @@ local highlite = {}
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--- @param group_name string
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--- @return table attributes a nvim-highlite compliant table describing `group_name`
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function highlite.group(group_name)
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local no_errors, group_definition = pcall(api.nvim_get_hl_by_name, group_name, go.termguicolors)
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local no_errors, group_definition = pcall(vim.api.nvim_get_hl_by_name, group_name, vim.go.termguicolors)
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if not no_errors then group_definition = {} end
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@ -139,7 +131,7 @@ function highlite.highlight(highlight_group, attributes) -- {{{ †
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highlight_cmd[5] = attributes
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else -- The `highlight_group` is uniquely defined.
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-- Take care of special instructions for certain background colors.
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if attributes[go.background] then
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if attributes[vim.go.background] then
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attributes = use_background_with(attributes)
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end
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@ -155,14 +147,14 @@ function highlite.highlight(highlight_group, attributes) -- {{{ †
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end
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end
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exe(table.concat(highlight_cmd))
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vim.api.nvim_command(table.concat(highlight_cmd))
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end --}}} ‡
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--- Set `g:terminal_color_`s based on `terminal_colors`.
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--- @param terminal_colors table a list 1..16 of colors to use in the terminal
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function highlite:highlight_terminal(terminal_colors)
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for index, color in ipairs(terminal_colors) do vim.g['terminal_color_'..(index-1)] =
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go.termguicolors and color[_PALETTE_HEX] or color[_PALETTE_CTERM]
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vim.go.termguicolors and color[_PALETTE_HEX] or color[_PALETTE_CTERM]
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end
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end
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@ -191,14 +183,14 @@ return setmetatable(highlite, {__call = function(self, normal, highlights, termi
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local color_name = vim.g.colors_name
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-- If the syntax has been enabled, reset it.
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if fn.exists 'syntax_on' then exe 'syntax reset' end
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if vim.fn.exists 'syntax_on' then vim.api.nvim_command 'syntax reset' end
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-- replace the colors_name
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vim.g.colors_name = color_name
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color_name = nil
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-- If we aren't using hex nor 256 colorsets.
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if not (go.termguicolors or _USE_256) then go.t_Co = '16' end
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if not (vim.go.termguicolors or _USE_256) then vim.go.t_Co = '16' end
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-- Highlight the baseline.
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self.highlight('Normal', normal)
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