Add statically-typed support for wrapping JS interop calls as C# delegates #61721
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| /// <param name="jsObjectReference">The JavaScript object reference that represents the function to be invoked.</param> | ||
| /// <returns>A delegate that can be used to invoke the JavaScript function.</returns> | ||
| /// <exception cref="ArgumentNullException">Thrown when <paramref name="jsObjectReference"/> is null.</exception> | ||
| public static Func<ValueTask> AsVoidFunction(this IJSObjectReference jsObjectReference) |
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is guess ValueTask (vs Task) is here for consistency ?
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Yes, because the other Invoke* methods return ValueTask. The JSRuntime method which implements the actual call also returns ValueTask (although it creates it from a regular Task, for some reason).
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How do I Are we going to take the DX convenience to next level ? What about passing JS and C# functions as callbacks to other functions ? |
To create the delegate, you must have had the
You can now pass JS functions (as There is no special support for passing C# functions. You have to create a JS wrapper and pass it the string identifiers of the assembly/method to call a static method, or passing a |
This is a work-in-progress implementation of
AsFunctionextension methods forIJSObjectReference. These methods create C# delegates that can be used as typed wrappers for invoking referenced JS functions via interop. Currently, it adds overloads for void/value-returning functions with up to 3 arguments.This is a reflection-free alternative to #61673.
The downside for this simpler implementation is the need to introduce multiple overloads into the public API.