From 15a1c210d8facaefd2d0bf2efc79252b5b13dbaa Mon Sep 17 00:00:00 2001
From: Marko Lahma <marko.lahma@gmail.com>
Date: Sun, 16 Jun 2024 10:01:00 +0300
Subject: [PATCH] Update test262 suite and implement Promise.try (#1895)

---
 .../Test262Harness.settings.json              |  2 +-
 Jint/Native/Promise/PromiseConstructor.cs     | 29 ++++++++++++++++++-
 README.md                                     |  1 +
 3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/Jint.Tests.Test262/Test262Harness.settings.json b/Jint.Tests.Test262/Test262Harness.settings.json
index a4593036e8..9b8743aee2 100644
--- a/Jint.Tests.Test262/Test262Harness.settings.json
+++ b/Jint.Tests.Test262/Test262Harness.settings.json
@@ -1,5 +1,5 @@
 {
-  "SuiteGitSha": "c2ae5ed5e90d86e17730730b003e9b6fb050693e",
+  "SuiteGitSha": "9dec509c93fa9b19d46330d90a43f871bb1aaf84",
   //"SuiteDirectory": "//mnt/c/work/test262",
   "TargetPath": "./Generated",
   "Namespace": "Jint.Tests.Test262",
diff --git a/Jint/Native/Promise/PromiseConstructor.cs b/Jint/Native/Promise/PromiseConstructor.cs
index 99820f5960..219cd59925 100644
--- a/Jint/Native/Promise/PromiseConstructor.cs
+++ b/Jint/Native/Promise/PromiseConstructor.cs
@@ -40,7 +40,7 @@ protected override void Initialize()
         {
             const PropertyFlag PropertyFlags = PropertyFlag.Configurable | PropertyFlag.Writable;
             const PropertyFlag LengthFlags = PropertyFlag.Configurable;
-            var properties = new PropertyDictionary(6, checkExistingKeys: false)
+            var properties = new PropertyDictionary(8, checkExistingKeys: false)
             {
                 ["all"] = new(new PropertyDescriptor(new ClrFunction(Engine, "all", All, 1, LengthFlags), PropertyFlags)),
                 ["allSettled"] = new(new PropertyDescriptor(new ClrFunction(Engine, "allSettled", AllSettled, 1, LengthFlags), PropertyFlags)),
@@ -48,6 +48,7 @@ protected override void Initialize()
                 ["race"] = new(new PropertyDescriptor(new ClrFunction(Engine, "race", Race, 1, LengthFlags), PropertyFlags)),
                 ["reject"] = new(new PropertyDescriptor(new ClrFunction(Engine, "reject", Reject, 1, LengthFlags), PropertyFlags)),
                 ["resolve"] = new(new PropertyDescriptor(new ClrFunction(Engine, "resolve", Resolve, 1, LengthFlags), PropertyFlags)),
+                ["try"] = new(new PropertyDescriptor(new ClrFunction(Engine, "try", Try, 1, LengthFlags), PropertyFlags)),
                 ["withResolvers"] = new(new PropertyDescriptor(new ClrFunction(Engine, "withResolvers", WithResolvers , 0, LengthFlags), PropertyFlags)),
             };
             SetProperties(properties);
@@ -169,6 +170,32 @@ private JsValue Reject(JsValue thisObject, JsValue[] arguments)
             return instance;
         }
 
+        /// <summary>
+        /// https://tc39.es/proposal-promise-try/
+        /// </summary>
+        private JsValue Try(JsValue thisObject, JsValue[] arguments)
+        {
+            if (!thisObject.IsObject())
+            {
+                ExceptionHelper.ThrowTypeError(_realm, "Promise.try called on non-object");
+            }
+
+            var callbackfn = arguments.At(0);
+            var promiseCapability = NewPromiseCapability(_engine, thisObject);
+
+            try
+            {
+                var status = callbackfn.Call(Undefined, arguments.Skip(1));
+                promiseCapability.Resolve.Call(Undefined, new[] { status });
+            }
+            catch (JavaScriptException e)
+            {
+                promiseCapability.Reject.Call(Undefined, new[] { e.Error });
+            }
+
+            return promiseCapability.PromiseInstance;
+        }
+
         // This helper methods executes the first 6 steps in the specs belonging to static Promise methods like all, any etc.
         // If it returns false, that means it has an error and it is already rejected
         // If it returns true, the logic specific to the calling function should continue executing
diff --git a/README.md b/README.md
index 2b003dd43a..e2f66f7ec7 100644
--- a/README.md
+++ b/README.md
@@ -125,6 +125,7 @@ and many more.
 - ✔ Float16Array (Jint v4, requires NET 6 target or higher)
 - ✔ Import attributes
 - ✔ JSON modules
+- ✔ `Promise.try` (Jint v4)
 - ✔ `Promise.withResolvers`
 - ✔ Resizable and growable ArrayBuffers
 - ✔ Set methods (`intersection`, `union`, `difference`, `symmetricDifference`, `isSubsetOf`, `isSupersetOf`, `isDisjointFrom`)