Revert expr mapping handling

lua/cmp/utils/keymap.lua

@@ -1,4 +1,3 @@
-local cache = require('cmp.utils.cache')
 local misc = require('cmp.utils.misc')
 local api = require('cmp.utils.api')
 
@@ -102,16 +101,15 @@ keymap.listen = function(mode, lhs, callback)
   end
 
   local bufnr = existing.buffer and vim.api.nvim_get_current_buf() or -1
-  local fallback = keymap.evacuate(bufnr, mode, existing)
   keymap.set_map(bufnr, mode, lhs, function()
     if mode == 'c' and vim.fn.getcmdtype() == '=' then
-      return vim.api.nvim_feedkeys(keymap.t(fallback), 'it', true)
+      return keymap.feed_map(existing)
     end
 
     callback(
       lhs,
       misc.once(function()
-        return vim.api.nvim_feedkeys(keymap.t(fallback), 'it', true)
+        keymap.feed_map(existing)
       end)
     )
   end, {
@@ -121,59 +119,6 @@ keymap.listen = function(mode, lhs, callback)
   })
 end
 
----Evacuate existing keymapping.
----@param bufnr number
----@param mode string
----@param existing table
----@return string
-keymap.evacuate = setmetatable({
-  cache = cache.new(),
-}, {
-  __call = function(self, bufnr, mode, existing)
-    local fallback = self.cache:ensure({ bufnr, mode, existing.lhs }, function()
-      return string.format('<Plug>(cmp.u.k.evacuate:%s)', misc.id('cmp.utils.keymap.evacuate'))
-    end)
-
-    local callback = not existing.expr and existing.callback
-    keymap.set_map(bufnr, mode, fallback, function()
-      -- Make resolved key sequence.
-      local lhs = keymap.t(existing.lhs)
-      local rhs
-      if existing.callback then
-        rhs = existing.callback()
-      elseif existing.expr then
-        rhs = vim.api.nvim_eval(keymap.t(existing.rhs))
-      else
-        rhs = keymap.t(existing.rhs)
-      end
-
-      -- Resolve recursive mapping. See `:help recursive_mapping`.
-      if not existing.noremap then
-        if string.find(rhs, lhs, 1, true) == 1 then
-          rhs = string.gsub(rhs, '^' .. vim.pesc(lhs), string.format(keymap.t([[<C-r>=v:lua.vim.json.decode(%s)<CR>]]), vim.fn.string(vim.json.encode(lhs))))
-        end
-      end
-
-      return rhs
-    end, callback and {
-      expr = false,
-      callback = callback,
-      noremap = existing.noremap,
-      script = existing.script,
-      silent = mode ~= 'c',
-      nowait = existing.nowait,
-    } or {
-      expr = true,
-      noremap = existing.noremap,
-      script = existing.script,
-      silent = mode ~= 'c',
-      nowait = existing.nowait,
-    })
-
-    return fallback
-  end,
-})
-
 ---Get map
 ---@param mode string
 ---@param lhs string
@@ -220,12 +165,40 @@ keymap.get_map = function(mode, lhs)
     callback = nil,
     noremap = true,
     script = false,
-    silent = true,
+    silent = false,
     nowait = false,
     buffer = false,
   }
 end
 
+---Feed mapping object.
+---@param map table
+keymap.feed_map = function(map)
+  local lhs = keymap.t(map.lhs)
+  local rhs
+  if map.callback and not map.expr then
+    return map.callback()
+  elseif map.callback and map.expr then
+    rhs = map.callback()
+  elseif map.expr then
+    rhs = vim.api.nvim_eval(keymap.t(map.rhs))
+  else
+    rhs = keymap.t(map.rhs)
+  end
+
+  if map.noremap then
+    vim.api.nvim_feedkeys(rhs, 'itn', true)
+  else
+    if string.find(rhs, lhs, 1, true) == 1 then
+      rhs = string.gsub(rhs, '^' .. vim.pesc(lhs), '')
+      vim.api.nvim_feedkeys(rhs, 'itm', true)
+      vim.api.nvim_feedkeys(lhs, 'itn', true)
+    else
+      vim.api.nvim_feedkeys(rhs, 'itm', true)
+    end
+  end
+end
+
 ---Set keymapping
 keymap.set_map = setmetatable({
   callbacks = {},