Implement kind highlights (#584)

* Implement kind highlights

* Fix link

README.md

@@ -264,6 +264,10 @@ The source customization options. It is defined by each source.
 The priority of the source.  If you don't specify it, the source priority will
 be determined by the default algorithm (see `sorting.priority_weight`).
 
+#### sources[number].trigger_characters (type: string[])
+
+The source specific triggerCharacters for override.
+
 #### sources[number].keyword_pattern (type: string)
 
 The source specific keyword_pattern for override.
@@ -473,6 +477,18 @@ The fuzzy matched characters highlight.
 
 The kind field.
 
+#### `CmpItemKind%KIND_NAME%`
+
+The specific kind highlights.
+You can see the name on [lsp.lua#L108](./lua/cmp/types/lsp.lua#L108).
+
+For example, You can change the highlight like this if you want to override only the `Method` kind.
+
+```
+highlight! CmpItemKindMethod guibg=NONE guifg=LightYellow
+```
+
+
 #### `CmpItemMenu`
 
 The menu field.

lua/cmp/entry.lua

@@ -212,7 +212,7 @@ entry.get_view = function(self, suggest_offset)
     view.kind.text = item.kind or ''
     view.kind.bytes = #view.kind.text
     view.kind.width = vim.str_utfindex(view.kind.text)
-    view.kind.hl_group = 'CmpItemKind'
+    view.kind.hl_group = 'CmpItemKind' .. types.lsp.CompletionItemKind[self:get_kind()]
     view.menu = {}
     view.menu.text = item.menu or ''
     view.menu.bytes = #view.menu.text

plugin/cmp.lua

@@ -5,6 +5,7 @@ vim.g.loaded_cmp = true
 
 local api = require "cmp.utils.api"
 local misc = require('cmp.utils.misc')
+local types = require('cmp.types')
 local config = require('cmp.config')
 local highlight = require('cmp.utils.highlight')
 
@@ -78,6 +79,11 @@ misc.set(_G, { 'cmp', 'plugin', 'colorscheme' }, function()
     guibg = 'NONE',
     ctermbg = 'NONE',
   })
+  for name in pairs(types.lsp.CompletionItemKind) do
+    if type(name) == 'string' then
+      vim.cmd(([[highlight! default link CmpItemKind%sDefault CmpItemKindDefault]]):format(name))
+    end
+  end
   highlight.inherit('CmpItemMenuDefault', 'Pmenu', {
     guibg = 'NONE',
     ctermbg = 'NONE',
@@ -104,6 +110,14 @@ end
 if vim.fn.hlexists('CmpItemKind') ~= 1 then
   vim.cmd [[highlight! default link CmpItemKind CmpItemKindDefault]]
 end
+for name in pairs(types.lsp.CompletionItemKind) do
+  if type(name) == 'string' then
+    local hi = ('CmpItemKind%s'):format(name)
+    if vim.fn.hlexists(hi) ~= 1 then
+      vim.cmd(([[highlight! default link %s %sDefault]]):format(hi, hi))
+    end
+  end
+end
 
 if vim.fn.hlexists('CmpItemMenu') ~= 1 then
   vim.cmd [[highlight! default link CmpItemMenu CmpItemMenuDefault]]