[Unity] Bug: Top level await: SyntaxError: Unexpected reserved word

[DoctorGester]

前置阅读 | Pre-reading

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Puer的版本 | Puer Version

2.1.0

Unity的版本 | Unity Version

2023.1.13f1

发生在哪个平台 | Platform

Editor(mac)

错误信息 | Error Message

Exception: index:2: SyntaxError: Unexpected reserved word

SyntaxError: Unexpected reserved word
Puerts.GenericDelegate.Func[T1,TResult] (T1 p1) (at /Users/kirill.artemov/workspace/donkey/external/puerts/Runtime/Src/Default/JSType/GenericDelegate.cs:565)
Puerts.JsEnv.ExecuteModule (System.String specifier) (at /Users/kirill.artemov/workspace/donkey/external/puerts/Runtime/Src/Default/JsEnv.cs:324)
Log.TestPuerTs () (at Assets/Scripts/Log.cs:72)

问题重现 | Bug reproduce

    private class TestLoader : ILoader {
        private readonly ILoader fallback = new DefaultLoader();
        
        public bool FileExists(string filepath) {
            if (filepath.StartsWith("puerts")) {
                return fallback.FileExists(filepath);
            }
            
            return true;
        }

        public string ReadFile(string filepath, out string debugpath) {
            if (filepath.StartsWith("puerts")) {
                return fallback.ReadFile(filepath, out debugpath);
            }
            
            if (filepath == "index") {
                debugpath = "";
                return @"
                        await Promise.resolve(0);
                        export {};
                        ";
            }

            debugpath = null;
            return null;
        }
    }


    [RuntimeInitializeOnLoadMethod]
    private static void TestPuerTs() {
        var env = new JsEnv(new TestLoader());

        env.ExecuteModule("index");
    }

I saw that esm top-level await should have been supported here for V8 - c333e46

But it doesn't seem that it works. I'm using the manually downloaded V8 version from releases - https://github.com/Tencent/puerts/releases/download/Unity_v2.1.0/PuerTS_V8_2.1.0.tgz

I saw #1689 but it doesn't seem like there's been a clear resolution and that issue might have been outdated.

[chexiongsheng]

Top level await disabled for some compatibility reason, may enable in the future.