[gjs: 5/6] Gio._promisify: Avoid using a regex to guess the finish function

[Philip Chimento <pchimento src gnome org>]

commit 9bc5a6606dabb23e35b7be1de57707c51142bc50
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Fri Jul 8 05:00:10 2022 +0200

    Gio._promisify: Avoid using a regex to guess the finish function

 modules/core/overrides/Gio.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/modules/core/overrides/Gio.js b/modules/core/overrides/Gio.js
index 041002a53..1dfa54e55 100644
--- a/modules/core/overrides/Gio.js
+++ b/modules/core/overrides/Gio.js
@@ -417,11 +417,17 @@ function* _listModelIterator() {
         yield this.get_item(_index++);
 }
 
-function _promisify(proto, asyncFunc,
-    finishFunc = `${asyncFunc.replace(/_(begin|async)$/, '')}_finish`) {
+function _promisify(proto, asyncFunc, finishFunc = undefined) {
     if (proto[asyncFunc] === undefined)
         throw new Error(`${proto} has no method named ${asyncFunc}`);
 
+    if (finishFunc === undefined) {
+        if (asyncFunc.endsWith('_begin') || asyncFunc.endsWith('_async'))
+            finishFunc = `${asyncFunc.slice(0, -5)}finish`;
+        else
+            finishFunc = `${asyncFunc}_finish`;
+    }
+
     if (proto[finishFunc] === undefined)
         throw new Error(`${proto} has no method named ${finishFunc}`);