Make calls to native constructors return intrinsic objects

src/intrinsics/node/process.js

@@ -12,7 +12,7 @@
 import invariant from "../../invariant.js";
 import type { Realm } from "../../realm.js";
 import { ConcreteValue, ArrayValue, ObjectValue, BooleanValue, NumberValue, StringValue, FunctionValue, NativeFunctionValue } from "../../values/index.js";
-import { DefinePropertyOrThrow, OrdinaryDelete, OrdinaryDefineOwnProperty, ToString, ToInteger, ToBoolean } from "../../methods/index.js";
+import { Get, DefinePropertyOrThrow, OrdinaryDelete, OrdinaryDefineOwnProperty, ToString, ToInteger, ToBoolean } from "../../methods/index.js";
 import { TypesDomain, ValuesDomain } from "../../domains/index.js";
 import buildExpressionTemplate from "../../utils/builder.js";
 import initializeBuffer from "./buffer.js";
@@ -93,14 +93,27 @@ function initializeTTYWrap(realm) {
   // let nativeTTY = nativeTTYWrap.TTY;
   let obj = new ObjectValue(realm, realm.intrinsics.ObjectPrototype, "process.binding('tty_wrap')");
 
-  let constructor = new NativeFunctionValue(realm, "process.binding('tty_wrap').TTY", "TTY", 0, (context, args) => {
+  let constructor = new NativeFunctionValue(realm, "process.binding('tty_wrap').TTY", "TTY", 0, (context, args, argCount, NewTarget) => {
     invariant(args[0] instanceof ConcreteValue);
-    // let fd = ToInteger(realm, args[0]);
+    let fd = ToInteger(realm, args[0]);
     invariant(args[1] instanceof ConcreteValue);
-    // let value =
-    ToBoolean(realm, args[1]);
-    // TODO
-    return realm.intrinsics.undefined;
+    let value = ToBoolean(realm, args[1]);
+
+    invariant(NewTarget, "TTY must be called as a constructor.");
+
+    let proto = Get(realm, NewTarget, new StringValue(realm, "prototype"));
+    if (!(proto instanceof ObjectValue)) {
+      proto = TTYPrototype;
+    }
+
+    // TODO: Store nativeTTY in an internal slot so that it can be used if this
+    // object gets passed to another native call.
+
+    return new ObjectValue(
+      realm,
+      proto,
+      `new (process.binding('tty_wrap').TTY)(${fd}, ${value.toString()})`
+    );
   });
   OrdinaryDefineOwnProperty(realm, obj, "TTY", {
     value: constructor,
@@ -121,7 +134,7 @@ function initializeTTYWrap(realm) {
     // let req = args[0];
     let content = args[1];
     invariant(content instanceof StringValue);
-    console.log('TTYwriteUtf8String:', content.value);
+    // TODO: Store this as a side-effect.
     return realm.intrinsics.undefined;
   });