Hi, I'm calling a proxy from a suspend function ```suspend fun test() { o.method() }``` here, `o` ...

# coroutines

[Gilles Barbier]

Hi, I'm calling a proxy from a suspend function

suspend fun test() {
  o.method()
}

here, o is a proxy obtained by Proxy.newProxyInstance(..., proxyHandler). So this will call the invoke method of proxyHandler. My question is: how can I propagate the suspend up to proxyHandler and use a suspend function from its handle method (without having to start a runBlocking of course) ?

[jw]

The easiest way, weirdly, is to call the suspend function from Java. You can unpack the Continuation argument from the Proxy's Object[] and then invoke the suspend function from Java.

[jw]

Here's an example: https://github.com/square/retrofit/blob/2583d360fa39792f87faf7f69afefaadf3944536/retrofit/src/main/java/retrofit2/HttpServiceMethod.java#L217-L234

[jw]

Note: this only works if a.method() is a suspend fun itself. Otherwise runBlocking is your only recourse.

[Gilles Barbier]

thx, I'll check that