/// <summary>
/// Implementation of the argument marshaling.
/// It's used by JSImport code generator and should not be used by developers in source code.
/// </summary>
public unsafe void ToManaged(out Task?value)
{
if (slot.Type == MarshalerType.None)
{
value = null;
return;
}
GCHandle gcHandle = (GCHandle)slot.GCHandle;
JSHostImplementation.TaskCallback?holder = (JSHostImplementation.TaskCallback?)gcHandle.Target;
if (holder == null)
{
throw new NullReferenceException("JSHostImplementation.TaskCallback");
}
TaskCompletionSource tcs = new TaskCompletionSource(gcHandle);
JSHostImplementation.ToManagedCallback callback = (JSMarshalerArgument * arguments_buffer) =>
{
ref JSMarshalerArgument arg_2 = ref arguments_buffer[3]; // set by caller when this is SetException call
// arg_3 set by caller when this is SetResult call, un-used here
if (arg_2.slot.Type != MarshalerType.None)
{
arg_2.ToManaged(out Exception? fail);
tcs.SetException(fail !);
}
else
{
tcs.SetResult();
}
// eventual exception is handled by caller
};
public static void ThrowException(ref JSMarshalerArgument arg)
{
arg.ToManaged(out Exception? ex);
if (ex != null)
{
throw ex;
}
throw new InvalidProgramException();
}
[MethodImplAttribute(MethodImplOptions.NoInlining)] // https://github.com/dotnet/runtime/issues/71425
public static void MarshalPromise(Span <JSMarshalerArgument> arguments)
{
fixed(JSMarshalerArgument *ptr = arguments)
{
Interop.Runtime.MarshalPromise(ptr);
ref JSMarshalerArgument exceptionArg = ref arguments[0];
if (exceptionArg.slot.Type != MarshalerType.None)
{
JSHostImplementation.ThrowException(ref exceptionArg);
}
}
internal static unsafe void InvokeJSImpl(JSObject jsFunction, Span <JSMarshalerArgument> arguments)
{
IntPtr functionJSHandle = jsFunction.JSHandle;
fixed(JSMarshalerArgument *ptr = arguments)
{
Interop.Runtime.InvokeJSFunction(functionJSHandle, ptr);
ref JSMarshalerArgument exceptionArg = ref arguments[0];
if (exceptionArg.slot.Type != MarshalerType.None)
{
JSHostImplementation.ThrowException(ref exceptionArg);
}
}
public unsafe void ToManaged(out JSObject?[]?value)
{
if (slot.Type == MarshalerType.None)
{
value = null;
return;
}
value = new JSObject?[slot.Length];
JSMarshalerArgument *payload = (JSMarshalerArgument *)slot.IntPtrValue;
for (int i = 0; i < slot.Length; i++)
{
ref JSMarshalerArgument arg = ref payload[i];
JSObject?val;
arg.ToManaged(out val);
value[i] = val;
}
/// <summary>
/// Implementation of the argument marshaling.
/// It's used by JSImport code generator and should not be used by developers in source code.
/// </summary>
public unsafe void ToManaged(out Task?value)
{
if (slot.Type == MarshalerType.None)
{
value = null;
return;
}
GCHandle gcHandle = (GCHandle)slot.GCHandle;
JSHostImplementation.TaskCallback?holder = (JSHostImplementation.TaskCallback?)gcHandle.Target;
if (holder == null)
{
throw new NullReferenceException("JSHostImplementation.TaskCallback");
}
TaskCompletionSource tcs = new TaskCompletionSource(gcHandle);
JSHostImplementation.ToManagedCallback callback = (JSMarshalerArgument * arguments_buffer) =>
{
ref JSMarshalerArgument arg_exception = ref arguments_buffer[0];
try
{
if (arg_exception.slot.Type != MarshalerType.None)
{
arg_exception.ToManaged(out Exception? fail);
tcs.SetException(fail !);
}
else
{
tcs.SetResult();
}
arg_exception.slot.Type = MarshalerType.None;
}
catch (Exception ex)
{
arg_exception.ToJS(ex);
}
};