dynamic schema: add boxed_any function

[smmoosavi]

Sometimes we have Box<dyn Any + Send + Sync>. in these cases the boxed_any function can help.

also borrowed_any changed from borrowed_any(obj: &'a (impl Any + Send + Sync)) to borrowed_any(obj: &'a (dyn Any + Send + Sync)) to remove sized constraint.

my use case:

pub enum AnyBox<'a> {
    Owned(Box<dyn Any + Send + Sync>, String),
    Borrowed(&'a (dyn Any + Send + Sync), String),
}

impl<'a> AnyBox<'a> {
    pub fn new_owned<T: Any + Send + Sync>(value: T, ty: String) -> Self {
        Self::Owned(Box::new(value), ty)
    }
    pub fn new_borrowed<T: Any + Send + Sync + Sized>(value: &'a T, ty: String) -> Self {
        Self::Borrowed(value, ty)
    }
}

impl<'a> ResolveOwned<'a> for AnyBox<'a> {
    fn resolve_owned(self, _ctx: &Context) -> async_graphql::Result<Option<FieldValue<'a>>> {
        match self {
            AnyBox::Owned(obj, name) => Ok(Some(FieldValue::boxed_any(obj).with_type(name))),
            AnyBox::Borrowed(obj, name) => Ok(Some(FieldValue::borrowed_any(obj).with_type(name))),
        }
    }
}

you can see example in here and here

[sunli829]

Thanks! 🙂