syscall/js: expose a scope argument in JS interop

misc/wasm/wasm_exec.js

@@ -95,7 +95,7 @@
 	globalThis.Go = class {
 		constructor() {
 			this.argv = ["js"];
-			this.env = {};
+			this.scope = globalThis;
 			this.exit = (code) => {
 				if (code !== 0) {
 					console.warn("exit code:", code);
@@ -129,6 +129,7 @@
 				}
 
 				const id = this.mem.getUint32(addr, true);
+				console.log("load value at addr", addr, id, this._values[id] == globalThis);
 				return this._values[id];
 			}
 

src/syscall/js/js.go

@@ -134,6 +134,12 @@ func Global() Value {
 	return valueGlobal
 }
 
+// Scope returns the JavaScript object attached to the Go class.
+// If nothing has been explicitely set, this is usually "window", or "global".
+func Scope() Value {
+	return jsGo.Get("scope")
+}
+
 // ValueOf returns x as a JavaScript value:
 //
 //	| Go                     | JavaScript             |