global object in javascrript

[Avatarchik]

detail | 详细描述

How can I specify a global object from C# so that it is available in JavaScript?
MoonSharp example
_scriptEngine.Globals["Engine"] = this;

[chexiongsheng]

There is no direct support, you can achieve this by calling js functions from c#.
ps: It is not recommended to change global, whether from C# or js.

[Avatarchik]

Can you show an example for Unity? How can I do this or how can I pass an instance object to javascript by reference
How can I do or do I want to make an API for modding the game?

[chexiongsheng]

js function

function setGlobal( key, value) {
    globalThis[key] = value;
}

Assign setGlobal to C# as a Action<string, object> variable, then call this delegate variable in C#.

[Avatarchik]

Hi! Thank you!

   private Action<string, object> setGlobal;
   
   jsEnv.Eval(@"
            global.setGlobal = function(key, value) {
                global[key] = value;
            }
               ");
               
                setGlobal = jsEnv.Eval<Action<string, object>>("setGlobal");
                
                setGlobal("Engine",this);
                
                jsEnv.Eval(@"
                  Engine.AddDATFile(""res:/main.dat"")
                ");
                

When calling a function it throws an error
jsEnv.Eval(@"
Engine.AddDATFile(""res:/main.dat"")
");

System.Exception: 👎 TypeError: not a function

[chexiongsheng]

AddDATFile is non public ?
It is ok in my project.

[Avatarchik]

yes
I'm using a dotnet project, a console application
PUERTS_GENERAL;

public void AddDatFile(string url, bool isCache = false)
{
}

Can you post your example please?

[chexiongsheng]

Add testcase to https://github.com/Tencent/puerts/blob/master/unity/test/Src/Cases/CrossLang/CrossLangTest.cs

        private string _url;
        
        public void AddDatFile(string url, bool isCache = false)
        {
            _url = url;
        }
        
        [Test]
        public void SetToGlobal()
        {
            var jsEnv = UnitTestEnv.GetEnv();

            jsEnv.Eval(@"
              global.setGlobal = function(key, value) {
                  global[key] = value;
              }
            ");

            var setGlobal = jsEnv.Eval<Action<string, object>>("setGlobal");

            setGlobal("Engine", this);

            jsEnv.Eval(@"
                  Engine.AddDatFile(""res:/main.dat"")
                ");
            Assert.AreEqual("res:/main.dat", _url);
        }

do test

cd puerts\unity\test\dotnet
node ../../cli dotnet-test v8_9.4