Use font-lock-preprocessor-face for annotations

Author: charjr

gdscript-completion.el

@@ -45,7 +45,7 @@
 (defvar-local gdscript-completion--all-keywords
     (eval-when-compile (append gdscript-keywords gdscript-built-in-classes
                                gdscript-built-in-constants gdscript-built-in-functions
-                               gdscript-built-in-types)))
+                               gdscript-built-in-types gdscript-annotations)))
 
 (defun gdscript-completion-at-point ()
   "This is the function to be used for the hook `completion-at-point-functions'."

gdscript-keywords.el

@@ -28,29 +28,41 @@
 
 ;;; Code:
 
+(defconst gdscript-annotations
+  '("@abstract"
+    "@export" "@export_category" "@export_color_no_alpha" "@export_custom"
+    "@export_dir" "@export_enum" "@export_exp_easing"
+    "@export_file" "@export_file_path"
+    "@export_flags"
+    "@export_flags_2d_navigation" "@export_flags_2d_physics" "@export_flags_2d_render"
+    "@export_flags_3d_navigation" "@export_flags_3d_physics" "@export_flags_3d_render"
+    "@export_flags_avoidance"
+    "@export_global_dir" "@export_global_file" "@export_group" "@export_multiline"
+    "@export_node_path" "@export_placeholder"
+    "@export_range" "@export_storage" "@export_subgroup" "@export_tool_button"
+    "@icon"
+    "@onready"
+    "@rpc"
+    "@static_unload"
+    "@tool"
+    "@warning_ignore" "@warning_ignore_restore" "@warning_ignore_start"))
+
 (defconst gdscript-keywords
   '("and" "as" "assert" "await"
     "break" "breakpoint"
     "case" "class" "class_name" "const" "continue"
     "do"
     "elif" "else" "enum"
-    "export" "export_category" "export_color_no_alpha" "export_custom"
-    "export_dir" "export_enum" "export_exp_easing" "export_file"
-    "export_flags"
-    "export_flags_2d_navigation" "export_flags_2d_physics" "export_flags_2d_render"
-    "export_flags_3d_navigation" "export_flags_3d_physics" "export_flags_3d_render"
-    "export_global_dir" "export_global_file" "export_group" "export_multiline"
-    "export_node_path" "export_range" "export_storage" "export_subgroup" "export_tool_button"
     "extends"
     "false" "for" "func"
     "if" "in" "is"
     "master" "match"
     "not"
-    "onready" "or"
+    "or"
     "pass" "preload" "puppet"
     "remote" "remotesync" "return"
     "self" "setget" "signal" "super" "slave" "static" "switch" "sync"
-    "tool" "true"
+    "true"
     "var"
     "while"
     "yield"))

gdscript-syntax.el

@@ -71,6 +71,9 @@
                                    (1+ space)
                                    (group (1+ (or word ?_))))
                               (1 font-lock-function-name-face))
+                             (,(regexp-opt gdscript-annotations 'non-nil)
+                              1
+                              font-lock-preprocessor-face)
                              (,(rx symbol-start
                                    (or "var" "const")
                                    (1+ space)