[browser][MT] JSType.OneWay fire and forget

docs/workflow/debugging/mono/wasm-debugging.md

@@ -180,8 +180,8 @@ $func166 @ dotnet.wasm:0xba0a
 $func2810 @ dotnet.wasm:0xabacf
 $func1615 @ dotnet.wasm:0x6f8eb
 $func1619 @ dotnet.wasm:0x6ff58
-$mono_wasm_invoke_method @ dotnet.wasm:0x96c9
-Module._mono_wasm_invoke_method @ dotnet.6.0.1.hopd7ipo8x.js:1
+$mono_wasm_invoke_jsexport @ dotnet.wasm:0x96c9
+Module.mono_wasm_invoke_jsexport @ dotnet.6.0.1.hopd7ipo8x.js:1
 managed__Microsoft_AspNetCore_Components_WebAssembly__Microsoft_AspNetCore_Components_WebAssembly_Services_DefaultWebAssemblyJSRuntime_BeginInvokeDotNet @ managed__Microsoft_AspNetCore_Components_WebAssembly__Microsoft_AspNetCore_Components_WebAssembly_Services_DefaultWebAssemblyJSRuntime_BeginInvokeDotNet:19
 beginInvokeDotNetFromJS @ blazor.webassembly.js:1
 b @ blazor.webassembly.js:1
@@ -244,8 +244,8 @@ $mono_jit_runtime_invoke @ dotnet.wasm:0x1dec32
 $do_runtime_invoke @ dotnet.wasm:0x95fca
 $mono_runtime_try_invoke @ dotnet.wasm:0x966fe
 $mono_runtime_invoke @ dotnet.wasm:0x98982
-$mono_wasm_invoke_method @ dotnet.wasm:0x227de2
-Module._mono_wasm_invoke_method @ dotnet..y6ggkhlo8e.js:9927
+$mono_wasm_invoke_jsexport @ dotnet.wasm:0x227de2
+Module.mono_wasm_invoke_jsexport @ dotnet..y6ggkhlo8e.js:9927
 managed__Microsoft_AspNetCore_Components_WebAssembly__Microsoft_AspNetCore_Components_WebAssembly_Services_DefaultWebAssemblyJSRuntime_BeginInvokeDotNet @ managed__Microsoft_AspNetCore_Components_WebAssembly__Microsoft_AspNetCore_Components_WebAssembly_Services_DefaultWebAssemblyJSRuntime_BeginInvokeDotNet:19
 beginInvokeDotNetFromJS @ blazor.webassembly.js:1
 b @ blazor.webassembly.js:1

src/libraries/Common/src/Interop/Browser/Interop.Runtime.cs

@@ -47,11 +47,11 @@ internal static unsafe partial class Runtime
         public static extern void UninstallWebWorkerInterop();
 
         [MethodImpl(MethodImplOptions.InternalCall)]
-        public static extern void InvokeJSImportSync(nint data, nint signature);
+        public static extern void InvokeJSImportSync(nint signature, nint args);
         [MethodImpl(MethodImplOptions.InternalCall)]
-        public static extern void InvokeJSImportSyncSend(nint targetNativeTID, nint data, nint signature);
+        public static extern void InvokeJSImportSyncSend(nint targetNativeTID, nint signature, nint args);
         [MethodImpl(MethodImplOptions.InternalCall)]
-        public static extern void InvokeJSImportAsyncPost(nint targetNativeTID, nint data, nint signature);
+        public static extern void InvokeJSImportAsyncPost(nint targetNativeTID, nint signature, nint args);
         [MethodImpl(MethodImplOptions.InternalCall)]
         public static extern void CancelPromise(nint taskHolderGCHandle);
         [MethodImpl(MethodImplOptions.InternalCall)]
@@ -60,7 +60,7 @@ internal static unsafe partial class Runtime
         [MethodImpl(MethodImplOptions.InternalCall)]
         public static extern unsafe void BindJSImport(void* signature, out int is_exception, out object result);
         [MethodImpl(MethodImplOptions.InternalCall)]
-        public static extern void InvokeJSImport(int importHandle, nint data);
+        public static extern void InvokeJSImportST(int importHandle, nint args);
         [MethodImpl(MethodImplOptions.InternalCall)]
         public static extern void CancelPromise(nint gcHandle);
 #endif

src/libraries/System.Runtime.InteropServices.JavaScript/gen/JSImportGenerator/JSGeneratorFactory.cs

@@ -42,6 +42,8 @@ ResolvedGenerator fail(string failReason)
                     return ResolvedGenerator.NotSupported(new(info, context));
 
                 // void
+                case { TypeInfo: JSSimpleTypeInfo(KnownManagedType.Void), JSType: JSTypeFlags.OneWay }:
+                    return ResolvedGenerator.Resolved(new VoidGenerator(MarshalerType.OneWay));
                 case { TypeInfo: JSSimpleTypeInfo(KnownManagedType.Void), JSType: JSTypeFlags.Discard }:
                 case { TypeInfo: JSSimpleTypeInfo(KnownManagedType.Void), JSType: JSTypeFlags.Void }:
                 case { TypeInfo: JSSimpleTypeInfo(KnownManagedType.Void), JSType: JSTypeFlags.None }:
@@ -52,6 +54,10 @@ ResolvedGenerator fail(string failReason)
                 case { JSType: JSTypeFlags.Discard }:
                     return fail(SR.DiscardOnlyVoid);
 
+                // oneway no void
+                case { JSType: JSTypeFlags.OneWay }:
+                    return fail(SR.OneWayOnlyVoid);
+
                 // primitive
                 case { TypeInfo: JSSimpleTypeInfo simple }:
                     return Create(info, isToJs, simple.KnownType, Array.Empty<KnownManagedType>(), jsMarshalingInfo.JSType, Array.Empty<JSTypeFlags>(), fail);

src/libraries/System.Runtime.InteropServices.JavaScript/gen/JSImportGenerator/JSTypeFlags.cs

@@ -22,6 +22,7 @@ internal enum JSTypeFlags : int
         MemoryView = 0x800,
         Any = 0x1000,
         Discard = 0x2000,
+        OneWay = 0x4000,
         Missing = 0x4000_0000,
     }
 }

src/libraries/System.Runtime.InteropServices.JavaScript/gen/JSImportGenerator/Resources/Strings.resx

@@ -184,6 +184,9 @@
   <data name="DiscardOnlyVoid" xml:space="preserve">
     <value>'JSType.Discard' could be only used with void return argument.</value>
   </data>
+  <data name="OneWayOnlyVoid" xml:space="preserve">
+    <value>'JSType.OneWay' could be only used with void returning method.</value>
+  </data>
   <data name="FuncArgumentNotSupported" xml:space="preserve">
     <value>Type {0} is not supported as argument of marshaled function.</value>
     <comment>{0} is a type of the argument</comment>

src/libraries/System.Runtime.InteropServices.JavaScript/src/CompatibilitySuppressions.xml

@@ -12,4 +12,16 @@
     <Left>ref/net9.0/System.Runtime.InteropServices.JavaScript.dll</Left>
     <Right>runtimes/browser/lib/net9.0/System.Runtime.InteropServices.JavaScript.dll</Right>
   </Suppression>
+  <Suppression>
+    <DiagnosticId>CP0001</DiagnosticId>
+    <Target>T:System.Runtime.InteropServices.JavaScript.JSType.OneWay</Target>
+    <Left>ref/net9.0/System.Runtime.InteropServices.JavaScript.dll</Left>
+    <Right>runtimes/browser/lib/net9.0/System.Runtime.InteropServices.JavaScript.dll</Right>
+  </Suppression>
+  <Suppression>
+    <DiagnosticId>CP0002</DiagnosticId>
+    <Target>M:System.Runtime.InteropServices.JavaScript.JSMarshalerType.get_OneWay</Target>
+    <Left>ref/net9.0/System.Runtime.InteropServices.JavaScript.dll</Left>
+    <Right>runtimes/browser/lib/net9.0/System.Runtime.InteropServices.JavaScript.dll</Right>
+  </Suppression>
 </Suppressions>

src/libraries/System.Runtime.InteropServices.JavaScript/src/System/Runtime/InteropServices/JavaScript/Interop/JavaScriptExports.cs

@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System.Collections.Generic;
+using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Reflection;
 using System.Runtime.CompilerServices;
@@ -14,12 +16,11 @@ namespace System.Runtime.InteropServices.JavaScript
     // TODO: all the calls here should be running on deputy or TP in MT, not in UI thread
     internal static unsafe partial class JavaScriptExports
     {
-        // the marshaled signature is:
-        // Task<int>? CallEntrypoint(char* assemblyNamePtr, string[] args)
+        // the marshaled signature is: Task<int>? CallEntrypoint(char* assemblyNamePtr, string[] args)
         public static void CallEntrypoint(JSMarshalerArgument* arguments_buffer)
         {
             ref JSMarshalerArgument arg_exc = ref arguments_buffer[0]; // initialized by caller in alloc_stack_frame()
-            ref JSMarshalerArgument arg_result = ref arguments_buffer[1]; // initialized by caller in alloc_stack_frame()
+            ref JSMarshalerArgument arg_res = ref arguments_buffer[1]; // initialized by caller in alloc_stack_frame()
             ref JSMarshalerArgument arg_1 = ref arguments_buffer[2]; // initialized and set by caller
             ref JSMarshalerArgument arg_2 = ref arguments_buffer[3]; // initialized and set by caller
             ref JSMarshalerArgument arg_3 = ref arguments_buffer[4]; // initialized and set by caller
@@ -28,6 +29,7 @@ public static void CallEntrypoint(JSMarshalerArgument* arguments_buffer)
 #if FEATURE_WASM_MANAGED_THREADS
                 // when we arrive here, we are on the thread which owns the proxies
                 arg_exc.AssertCurrentThreadContext();
+                Debug.Assert(arg_res.slot.Type == MarshalerType.TaskPreCreated);
 #endif
 
                 arg_1.ToManaged(out IntPtr assemblyNamePtr);
@@ -36,7 +38,7 @@ public static void CallEntrypoint(JSMarshalerArgument* arguments_buffer)
 
                 Task<int>? result = JSHostImplementation.CallEntrypoint(assemblyNamePtr, args, waitForDebugger);
 
-                arg_result.ToJS(result, (ref JSMarshalerArgument arg, int value) =>
+                arg_res.ToJS(result, (ref JSMarshalerArgument arg, int value) =>
                 {
                     arg.ToJS(value);
                 });
@@ -47,6 +49,7 @@ public static void CallEntrypoint(JSMarshalerArgument* arguments_buffer)
             }
         }
 
+        // the marshaled signature is: void LoadLazyAssembly(byte[] dll, byte[] pdb)
         public static void LoadLazyAssembly(JSMarshalerArgument* arguments_buffer)
         {
             ref JSMarshalerArgument arg_exc = ref arguments_buffer[0];
@@ -70,6 +73,7 @@ public static void LoadLazyAssembly(JSMarshalerArgument* arguments_buffer)
             }
         }
 
+        // the marshaled signature is: void LoadSatelliteAssembly(byte[] dll)
         public static void LoadSatelliteAssembly(JSMarshalerArgument* arguments_buffer)
         {
             ref JSMarshalerArgument arg_exc = ref arguments_buffer[0];
@@ -91,10 +95,8 @@ public static void LoadSatelliteAssembly(JSMarshalerArgument* arguments_buffer)
             }
         }
 
-        // The JS layer invokes this method when the JS wrapper for a JS owned object
-        //  has been collected by the JS garbage collector
-        // the marshaled signature is:
-        // void ReleaseJSOwnedObjectByGCHandle(GCHandle gcHandle)
+        // The JS layer invokes this method when the JS wrapper for a JS owned object has been collected by the JS garbage collector
+        // the marshaled signature is: void ReleaseJSOwnedObjectByGCHandle(GCHandle gcHandle)
         public static void ReleaseJSOwnedObjectByGCHandle(JSMarshalerArgument* arguments_buffer)
         {
             ref JSMarshalerArgument arg_exc = ref arguments_buffer[0]; // initialized by caller in alloc_stack_frame()
@@ -112,8 +114,7 @@ public static void ReleaseJSOwnedObjectByGCHandle(JSMarshalerArgument* arguments
             }
         }
 
-        // the marshaled signature is:
-        // TRes? CallDelegate<T1,T2,T3TRes>(GCHandle callback, T1? arg1, T2? arg2, T3? arg3)
+        // the marshaled signature is: TRes? CallDelegate<T1,T2,T3TRes>(GCHandle callback, T1? arg1, T2? arg2, T3? arg3)
         public static void CallDelegate(JSMarshalerArgument* arguments_buffer)
         {
             ref JSMarshalerArgument arg_exc = ref arguments_buffer[0]; // initialized by JS caller in alloc_stack_frame()
@@ -149,8 +150,7 @@ public static void CallDelegate(JSMarshalerArgument* arguments_buffer)
             }
         }
 
-        // the marshaled signature is:
-        // void CompleteTask<T>(GCHandle holder, Exception? exceptionResult, T? result)
+        // the marshaled signature is: void CompleteTask<T>(GCHandle holder, Exception? exceptionResult, T? result)
         public static void CompleteTask(JSMarshalerArgument* arguments_buffer)
         {
             ref JSMarshalerArgument arg_exc = ref arguments_buffer[0]; // initialized by caller in alloc_stack_frame()
@@ -209,12 +209,11 @@ public static void CompleteTask(JSMarshalerArgument* arguments_buffer)
             }
         }
 
-        // the marshaled signature is:
-        // string GetManagedStackTrace(GCHandle exception)
+        // the marshaled signature is: string GetManagedStackTrace(GCHandle exception)
         public static void GetManagedStackTrace(JSMarshalerArgument* arguments_buffer)
         {
             ref JSMarshalerArgument arg_exc = ref arguments_buffer[0]; // initialized by caller in alloc_stack_frame()
-            ref JSMarshalerArgument arg_return = ref arguments_buffer[1]; // used as return value
+            ref JSMarshalerArgument arg_res = ref arguments_buffer[1]; // used as return value
             ref JSMarshalerArgument arg_1 = ref arguments_buffer[2];// initialized and set by caller
             try
             {
@@ -224,7 +223,7 @@ public static void GetManagedStackTrace(JSMarshalerArgument* arguments_buffer)
                 GCHandle exception_gc_handle = (GCHandle)arg_1.slot.GCHandle;
                 if (exception_gc_handle.Target is Exception exception)
                 {
-                    arg_return.ToJS(exception.StackTrace);
+                    arg_res.ToJS(exception.StackTrace);
                 }
                 else
                 {
@@ -241,19 +240,18 @@ public static void GetManagedStackTrace(JSMarshalerArgument* arguments_buffer)
 
         // this is here temporarily, until JSWebWorker becomes public API
         [DynamicDependency(DynamicallyAccessedMemberTypes.NonPublicMethods, "System.Runtime.InteropServices.JavaScript.JSWebWorker", "System.Runtime.InteropServices.JavaScript")]
-        // the marshaled signature is:
-        // void InstallMainSynchronizationContext(nint jsNativeTID, out GCHandle contextHandle)
+        // the marshaled signature is: GCHandle InstallMainSynchronizationContext(nint jsNativeTID)
         public static void InstallMainSynchronizationContext(JSMarshalerArgument* arguments_buffer)
         {
             ref JSMarshalerArgument arg_exc = ref arguments_buffer[0]; // initialized by caller in alloc_stack_frame()
+            ref JSMarshalerArgument arg_res = ref arguments_buffer[1];// initialized and set by caller
             ref JSMarshalerArgument arg_1 = ref arguments_buffer[2];// initialized and set by caller
-            ref JSMarshalerArgument arg_2 = ref arguments_buffer[3];// initialized and set by caller
 
             try
             {
                 var jsSynchronizationContext = JSSynchronizationContext.InstallWebWorkerInterop(true, CancellationToken.None);
                 jsSynchronizationContext.ProxyContext.JSNativeTID = arg_1.slot.IntPtrValue;
-                arg_2.slot.GCHandle = jsSynchronizationContext.ProxyContext.ContextHandle;
+                arg_res.slot.GCHandle = jsSynchronizationContext.ProxyContext.ContextHandle;
             }
             catch (Exception ex)
             {
@@ -263,12 +261,11 @@ public static void InstallMainSynchronizationContext(JSMarshalerArgument* argume
 
 #endif
 
-        // the marshaled signature is:
-        // Task BindAssemblyExports(string assemblyName)
+        // the marshaled signature is: Task BindAssemblyExports(string assemblyName)
         public static void BindAssemblyExports(JSMarshalerArgument* arguments_buffer)
         {
             ref JSMarshalerArgument arg_exc = ref arguments_buffer[0]; // initialized by caller in alloc_stack_frame()
-            ref JSMarshalerArgument arg_result = ref arguments_buffer[1]; // used as return value
+            ref JSMarshalerArgument arg_res = ref arguments_buffer[1]; // used as return value
             ref JSMarshalerArgument arg_1 = ref arguments_buffer[2];// initialized and set by caller
             try
             {
@@ -279,7 +276,7 @@ public static void BindAssemblyExports(JSMarshalerArgument* arguments_buffer)
 
                 var result = JSHostImplementation.BindAssemblyExports(assemblyName);
 
-                arg_result.ToJS(result);
+                arg_res.ToJS(result);
             }
             catch (Exception ex)
             {

src/libraries/System.Runtime.InteropServices.JavaScript/src/System/Runtime/InteropServices/JavaScript/Interop/JavaScriptImports.Generated.cs

@@ -57,6 +57,7 @@ internal static unsafe partial class JavaScriptImports
 
 #if DEBUG
         [JSImport("globalThis.console.log")]
+        [return: JSMarshalAs<JSType.OneWay>]
         public static partial void Log([JSMarshalAs<JSType.String>] string message);
 #endif
     }

src/libraries/System.Runtime.InteropServices.JavaScript/src/System/Runtime/InteropServices/JavaScript/JSFunctionBinding.cs

@@ -30,6 +30,7 @@ public sealed class JSFunctionBinding
         internal static volatile uint nextImportHandle = 1;
         internal int ImportHandle;
         internal bool IsAsync;
+        internal bool IsOneWay;
 #if DEBUG
         internal string? FunctionName;
 #endif
@@ -285,6 +286,11 @@ internal static unsafe void InvokeJSImportImpl(JSFunctionBinding signature, Span
                 arguments[1].slot.GCHandle = holder.GCHandle;
             }
 
+            if (signature.IsOneWay)
+            {
+                arguments[1].slot.Type = MarshalerType.OneWay;
+            }
+
 #if FEATURE_WASM_MANAGED_THREADS
             // if we are on correct thread already or this is synchronous call, just call it
             if (targetContext.IsCurrentThread())
@@ -299,15 +305,15 @@ internal static unsafe void InvokeJSImportImpl(JSFunctionBinding signature, Span
 #endif
 
             }
-            else if (!signature.IsAsync)
+            else if (signature.IsAsync || signature.IsOneWay)
             {
-                //sync
-                DispatchJSImportSyncSend(signature, targetContext, arguments);
+                //async
+                DispatchJSImportAsyncPost(signature, targetContext, arguments);
             }
             else
             {
-                //async
-                DispatchJSImportAsyncPost(signature, targetContext, arguments);
+                //sync
+                DispatchJSImportSyncSend(signature, targetContext, arguments);
             }
 #else
             InvokeJSImportCurrent(signature, arguments);
@@ -332,9 +338,9 @@ internal static unsafe void InvokeJSImportCurrent(JSFunctionBinding signature, S
             fixed (JSMarshalerArgument* args = arguments)
             {
 #if FEATURE_WASM_MANAGED_THREADS
-                Interop.Runtime.InvokeJSImportSync((nint)args, (nint)signature.Header);
+                Interop.Runtime.InvokeJSImportSync((nint)signature.Header, (nint)args);
 #else
-                Interop.Runtime.InvokeJSImport(signature.ImportHandle, (nint)args);
+                Interop.Runtime.InvokeJSImportST(signature.ImportHandle, (nint)args);
 #endif
             }
 
@@ -361,7 +367,7 @@ internal static unsafe void DispatchJSImportSyncSend(JSFunctionBinding signature
             // we also don't throw PNSE here, because we know that the target has JS interop installed and that it could not block
             // so it could take some time, while target is CPU busy, but not forever
             // see also https://github.com/dotnet/runtime/issues/76958#issuecomment-1921418290
-            Interop.Runtime.InvokeJSImportSyncSend(targetContext.JSNativeTID, args, sig);
+            Interop.Runtime.InvokeJSImportSyncSend(targetContext.JSNativeTID, sig, args);
 
             ref JSMarshalerArgument exceptionArg = ref arguments[0];
             if (exceptionArg.slot.Type != MarshalerType.None)
@@ -375,7 +381,10 @@ internal static unsafe void DispatchJSImportSyncSend(JSFunctionBinding signature
 #endif
         internal static unsafe void DispatchJSImportAsyncPost(JSFunctionBinding signature, JSProxyContext targetContext, Span<JSMarshalerArgument> arguments)
         {
-            // this copy is freed in mono_wasm_invoke_import_async
+            // meaning JS side needs to dispose it
+            ref JSMarshalerArgument exc = ref arguments[0];
+            exc.slot.ReceiverShouldFree = true;
+
             var bytes = sizeof(JSMarshalerArgument) * arguments.Length;
             void* cpy = (void*)Marshal.AllocHGlobal(bytes);
             void* src = Unsafe.AsPointer(ref arguments[0]);
@@ -385,7 +394,7 @@ internal static unsafe void DispatchJSImportAsyncPost(JSFunctionBinding signatur
             // we already know that we are not on the right thread
             // this will return quickly after sending the message
             // async
-            Interop.Runtime.InvokeJSImportAsyncPost(targetContext.JSNativeTID, (nint)cpy, sig);
+            Interop.Runtime.InvokeJSImportAsyncPost(targetContext.JSNativeTID, sig, (nint)cpy);
 
         }
 
@@ -431,8 +440,8 @@ internal static unsafe void ResolveOrRejectPromise(JSProxyContext targetContext,
             else
             {
                 // meaning JS side needs to dispose it
-                ref JSMarshalerArgument res = ref arguments[1];
-                res.slot.BooleanValue = true;
+                ref JSMarshalerArgument exc = ref arguments[0];
+                exc.slot.ReceiverShouldFree = true;
 
                 // this copy is freed in mono_wasm_resolve_or_reject_promise
                 var bytes = sizeof(JSMarshalerArgument) * arguments.Length;