Method call

modules/llrt_stream_web/src/readable/stream/algorithms.rs:30–42

(
        &self,
        ctx: Ctx<'js>,
        controller: ReadableStreamControllerClass<'js>,
    )

impl<'js> StartAlgorithm<'js> {
    pub(crate) fn call(
        &self,
        ctx: Ctx<'js>,
        controller: ReadableStreamControllerClass<'js>,
    ) -> Result<Value<'js>> {
        match self {
            StartAlgorithm::ReturnUndefined => Ok(Value::new_undefined(ctx.clone())),
            StartAlgorithm::Function {
                f,
                underlying_source,
            } => f.call::<_, Value>((This(underlying_source.clone()), controller)),
        }
    }
}

type PullRustFn<'js> =