3 files changed, 9 insertions, 10 deletions
diff --git a/modules/textadept/adeptsense.lua b/modules/textadept/adeptsense.lua
index 8f4bdacd..2898bc0c 100644
--- a/modules/textadept/adeptsense.lua
+++ b/modules/textadept/adeptsense.lua
@@ -470,7 +470,7 @@ function M.get_class(sense, symbol)
     if class then
       -- The type declaration should not be in a comment or string.
       local pos = buffer:position_from_line(i)
-      local style = buffer:get_style_name(buffer.style_at[pos + s - 1])
+      local style = buffer.style_name[buffer.style_at[pos + s - 1]]
       if style ~= 'comment' and style ~= 'string' then break end
       class = nil
     end
diff --git a/modules/textadept/file_types.lua b/modules/textadept/file_types.lua
index d4f6df57..c34ab0e3 100644
--- a/modules/textadept/file_types.lua
+++ b/modules/textadept/file_types.lua
@@ -98,17 +98,16 @@ local function set_lexer(buffer, lang)
   buffer:colourise(0, buffer:position_from_line(last_line + 1))
 end
 
--- LuaDoc is in core/.buffer.luadoc.
-local function get_style_name(buffer, style_num)
-  buffer:check_global()
-  if style_num < 0 or style_num > 255 then error('0 <= style_num < 256') end
-  return buffer:private_lexer_call(style_num)
-end
-
 -- Gives new buffers lexer-specific functions.
 local function set_lexer_functions()
   buffer.get_lexer, buffer.set_lexer = get_lexer, set_lexer
-  buffer.get_style_name = get_style_name
+  buffer.style_name = setmetatable({}, {
+    __index = function(t, style_num) -- LuaDoc is in core/.buffer.luadoc
+      if style_num < 0 or style_num > 255 then error('0 <= style_num < 256') end
+      return buffer:private_lexer_call(style_num)
+    end,
+    __newindex = function() error('read-only property') end
+  })
 end
 events.connect(events.BUFFER_NEW, set_lexer_functions, 1)
 
diff --git a/modules/textadept/keys.lua b/modules/textadept/keys.lua
index 27f44c86..3acb2a28 100644
--- a/modules/textadept/keys.lua
+++ b/modules/textadept/keys.lua
@@ -241,7 +241,7 @@ M.utils = {
     local style = buffer.style_at[buffer.current_pos]
     local text = string.format("%s %s\n%s %s (%d)", _L['Lexer'],
                                buffer:get_lexer(true), _L['Style'],
-                               buffer:get_style_name(style), style)
+                               buffer.style_name[style], style)
     buffer:call_tip_show(buffer.current_pos, text)
   end,
   set_indentation = function(i)