Core (LV::Singleton): Add const_instance() to return instance as const.

kaixiong · kaixiong · commit 64c6a75a6c4f · 2023-02-24T23:42:25.000+08:00
diff --git a/libvisual/libvisual/lv_singleton.hpp b/libvisual/libvisual/lv_singleton.hpp
@@ -31,6 +31,14 @@ namespace LV {
           return m_instance.get ();
       }
 
+      //! Returns the singleton instance as const.
+      //!
+      //! @return Singleton instance.
+      static T const* const_instance ()
+      {
+          return m_instance.get ();
+      }
+
       //! Destroys the singleton instance
       static void destroy ()
       {

Original file line number	Diff line number	Diff line change
`@@ -31,6 +31,14 @@ namespace LV {`
`31`	`31`	`return m_instance.get ();`
`32`	`32`	`}`
`33`	`33`
	`34`	`+ //! Returns the singleton instance as const.`
	`35`	`+ //!`
	`36`	`+ //! @return Singleton instance.`
	`37`	`+ static T const* const_instance ()`
	`38`	`+ {`
	`39`	`+ return m_instance.get ();`
	`40`	`+ }`
	`41`	`+`
`34`	`42`	`//! Destroys the singleton instance`
`35`	`43`	`static void destroy ()`
`36`	`44`	`{`