Made it work the way it works with other languages. (Edited module.exports)

src/languages/gdscript.js

@@ -4,73 +4,65 @@ Author: Khairul Hidayat <me@khairul.my.id>, Nelson Sylvest*r Fritsch <info@nelso
 Description: Programming language for Godot Engine
 */
 
-var module = module ? module : {};     // shim for browser use
-
-function hljsDefineGDScript(hljs) {
+function GDScript(hljs) {
 	var KEYWORDS = {
 		keyword:
-			'and in not or self void as assert breakpoint class class_name ' +
-			'extends is func setget signal tool yield const enum export ' +
-			'onready static var break continue if elif else for pass return ' +
-			'match while remote sync master puppet remotesync mastersync ' +
-			'puppetsync',
+			"and in not or self void as assert breakpoint class class_name " +
+			"extends is func setget signal tool yield const enum export " +
+			"onready static var break continue if elif else for pass return " +
+			"match while remote sync master puppet remotesync mastersync " +
+			"puppetsync",
 
 		built_in:
-			'Color8 ColorN abs acos asin atan atan2 bytes2var ' +
-			'cartesian2polar ceil char clamp convert cos cosh db2linear ' +
-			'decimals dectime deg2rad dict2inst ease exp floor fmod fposmod ' +
-			'funcref get_stack hash inst2dict instance_from_id inverse_lerp ' +
-			'is_equal_approx is_inf is_instance_valid is_nan is_zero_approx ' +
-			'len lerp lerp_angle linear2db load log max min move_toward ' +
-			'nearest_po2 ord parse_json polar2cartesian posmod pow preload ' +
-			'print_stack push_error push_warning rad2deg rand_range ' +
-			'rand_seed randf randi randomize range_lerp round seed sign sin ' +
-			'sinh smoothstep sqrt step_decimals stepify str str2var tan tanh ' +
-			'to_json type_exists typeof validate_json var2bytes var2str ' +
-			'weakref wrapf wrapi bool int float String NodePath ' +
-			'Vector2 Rect2 Transform2D Vector3 Rect3 Plane ' +
-			'Quat Basis Transform Color RID Object NodePath ' +
-			'Dictionary Array PoolByteArray PoolIntArray ' +
-			'PoolRealArray PoolStringArray PoolVector2Array ' +
-			'PoolVector3Array PoolColorArray',
+			"Color8 ColorN abs acos asin atan atan2 bytes2var " +
+			"cartesian2polar ceil char clamp convert cos cosh db2linear " +
+			"decimals dectime deg2rad dict2inst ease exp floor fmod fposmod " +
+			"funcref get_stack hash inst2dict instance_from_id inverse_lerp " +
+			"is_equal_approx is_inf is_instance_valid is_nan is_zero_approx " +
+			"len lerp lerp_angle linear2db load log max min move_toward " +
+			"nearest_po2 ord parse_json polar2cartesian posmod pow preload " +
+			"print_stack push_error push_warning rad2deg rand_range " +
+			"rand_seed randf randi randomize range_lerp round seed sign sin " +
+			"sinh smoothstep sqrt step_decimals stepify str str2var tan tanh " +
+			"to_json type_exists typeof validate_json var2bytes var2str " +
+			"weakref wrapf wrapi bool int float String NodePath " +
+			"Vector2 Rect2 Transform2D Vector3 Rect3 Plane " +
+			"Quat Basis Transform Color RID Object NodePath " +
+			"Dictionary Array PoolByteArray PoolIntArray " +
+			"PoolRealArray PoolStringArray PoolVector2Array " +
+			"PoolVector3Array PoolColorArray",
 
-		literal:
-			'true false null'
+		literal: "true false null"
 	};
 
 	return {
-		aliases: ['godot', 'gdscript'],
+		aliases: ["godot", "gdscript"],
 		keywords: KEYWORDS,
 		contains: [
 			hljs.NUMBER_MODE,
 			hljs.HASH_COMMENT_MODE,
 			{
-				className: 'comment',
-				begin: /"""/, end: /"""/
+				className: "comment",
+				begin: /"""/,
+				end: /"""/
 			},
 			hljs.QUOTE_STRING_MODE,
 			{
 				variants: [
 					{
-						className: 'function',
-						beginKeywords: 'func'
+						className: "function",
+						beginKeywords: "func"
 					},
 					{
-						className: 'class',
-						beginKeywords: 'class'
+						className: "class",
+						beginKeywords: "class"
 					}
 				],
 				end: /:/,
-				contains: [
-					hljs.UNDERSCORE_TITLE_MODE
-				]
+				contains: [hljs.UNDERSCORE_TITLE_MODE]
 			}
 		]
 	};
 }
 
-module.exports = function(hljs) {
-    hljs.registerLanguage('gdscript', hljsDefineGDScript);
-};
-
-module.exports.definer = hljsDefineGDScript;
+module.exports = GDScript;