bevy_mod_scripting_display 0.19.0

Traits focused on printing types with type information contained in the bevy type registry
Documentation 
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use bevy_asset::{Asset, Handle};
use std::fmt;

/// Display the path of a script or its asset ID.
#[doc(hidden)]
pub struct HandleDisplay<'a, T: Asset>(&'a Handle<T>);

impl<'a, A: Asset> fmt::Display for HandleDisplay<'a, A> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        if let Some(path) = self.0.path() {
            write!(f, "path {path}")
        } else {
            write!(f, "id {}", self.0.id())
        }
    }
}

impl<'a, A: Asset> fmt::Debug for HandleDisplay<'a, A> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        if let Some(path) = self.0.path() {
            write!(f, "path {path:?}")
        } else {
            write!(f, "id {:?}", self.0.id())
        }
    }
}

/// Make a type display-able.
pub trait DisplayProxy {
    /// The type that does the displaying.
    type D<'a>: fmt::Display + fmt::Debug
    where
        Self: 'a;
    /// Return a display-able reference.
    fn display<'a>(&'a self) -> Self::D<'a>;
}

impl<A: Asset> DisplayProxy for Handle<A> {
    type D<'a> = HandleDisplay<'a, A>;

    fn display<'a>(&'a self) -> Self::D<'a> {
        HandleDisplay(self)
    }
}