example: Add inlay hints example

Author: tjdevries

README.md

@@ -7,4 +7,7 @@ Repo to hold a bunch of info & extension callbacks for built-in LSP. Use at
 
 - Showing Line Diagnostics: https://clips.twitch.tv/ProductiveBoxyPastaCoolStoryBro
 
+- This Plugin:
+    - Lined up hints: https://clips.twitch.tv/DaintyCorrectMarjoramKeepo
+
 - N E O V I M: https://clips.twitch.tv/SmoothGoodTurnipCmonBruh

examples/inlay_hints_inline.lua

@@ -0,0 +1,20 @@
+local inlay_hints = require('lsp_extensions.inlay_hints')
+
+local M = {}
+
+-- Global function, so you can just call it on the lua side
+ShowInlineInlayHints = function()
+  vim.lsp.buf_request(0, 'rust-analyzer/inlayHints', inlay_hints.get_params(), inlay_hints.get_callback {
+    only_current_line = true
+  })
+end
+
+-- @rockerboo
+M.show_line_hints_on_cursor_events = function()
+  vim.cmd [[augroup ShowLineHints]]
+  vim.cmd [[  au!]]
+  vim.cmd [[  autocmd CursorHold,CursorHoldI,CursorMoved *.rs :lua ShowInlineInlayHints()]]
+  vim.cmd [[augroup END]]
+end
+
+return M