Is delegating to enum in the target range about rust-delegate HOT 4 CLOSED

Hi! I'm not sure what exactly do you mean. The code that you have posted seems to work, and expands to this:

#[inline(always)]
pub fn leading_ones(&self) -> u32 {
    match self {
        WeakRenderObject::RenderBox(o) => o,
        WeakRenderObject::RenderSliver(o) => o,
        WeakRenderObject::RenderView(o) => o,
    }.leading_ones()
}

Is there something problematic with this?

from rust-delegate.

pub enum WeakRenderObject {
    RenderBox(WeakRenderBox),
    RenderSliver(WeakRenderSliver),
    RenderView(WeakRenderView),
}

struct WeakRenderBox;
struct WeakRenderSliver;
struct WeakRenderView;

WeakRenderBox WeakRenderSliver WeakRenderView are of different types. The match expr returns different types, thus compiles error.

from rust-delegate.

I see. I'm not sure what could be the ideal way to enable this use-case though 🤔 In theory, there could be some placeholder value in the target expression and the delegation macro would replace that placeholder, like this:

impl WeakRenderObject {
    delegate::delegate!(to match self {
        WeakRenderObject::RenderBox(o) => o.$delegate,
        WeakRenderObject::RenderSliver(o) => o.$delegate,
        WeakRenderObject::RenderView(o) => o.$delegate,
    } {
        pub fn is_alive(&self) -> bool;
    });
}

but I'm not sure if I can parse the code well enough so that I can find all of the placeholders. I'll try.

from rust-delegate.

Published v0.8.0 with this feature. Thank you very much!

from rust-delegate.