anonymous function Access external variables have GC

Directly on the test code:

usingSystem.Collections;usingSystem.Collections.Generic;usingUnityengine; Public classteststructgc:monobehaviour{ Public structStructdef { PublicSystem.Action Act;  PublicStructdef (system.action callback) {Act=callback; }    }     Public intMembervalue; Private voidUpdate () {//using anonymous functions, not accessing external functions, 0 GC{UnityEngine.Profiling.Profiler.BeginSample ("* * * * Test1"); Structdef obj=NewStructdef (NULL);        UnityEngine.Profiling.Profiler.EndSample (); }        //use anonymous functions, access temporary variables, 112B GC        {            intTMP =1; UnityEngine.Profiling.Profiler.BeginSample ("* * * * Test2"); Structdef obj=NewStructdef (() = {varv =tmp;});        UnityEngine.Profiling.Profiler.EndSample (); }        //using anonymous functions, accessing external variables, 112B GC{UnityEngine.Profiling.Profiler.BeginSample ("* * * * TEST3"); Structdef obj=NewStructdef (() ={debug.logerror (membervalue);            });        UnityEngine.Profiling.Profiler.EndSample (); }        //do not use anonymous functions, 0 GC{UnityEngine.Profiling.Profiler.BeginSample ("* * * * TEST4"); Structdef obj=Newstructdef (Actcallback);        UnityEngine.Profiling.Profiler.EndSample (); }    }    #regionOptimize for Test4PrivateSystem.Action Actcallback;  PublicTESTSTRUCTGC () {Actcallback=Localcallback; }    Private voidLocalcallback () {debug.logerror (membervalue); }    #endregion}

Reference: https://blog.uwa4d.com/archives/Anonymous_heapmemory.html

anonymous function Access external variables have GC