[Feature Request]: Custom wrappers

[Ddystopia]

It would be great to allow specifying custom wrappers. There already is -w option, but it would only remove a predetermined amount of wrappers.

[loyd]

Hi, can you provide some example? The -w option removes not some predetermined wrappers, but any types with only one non-ZST field:

top-type-sizes/src/transformer.rs

Lines 50 to 65 in 8b360dc

	fn is_wrapper(type_: &Type) -> bool {
	if type_.end_padding.is_some() {
	return false;
	}
	let pred = |type_size, items: &[FieldOrPadding]| {
	items.iter().all(|f| f.size() == type_size || f.size() == 0)
	};
	match &type_.kind {
	TypeKind::Struct(s) => pred(type_.size, &s.items),
	TypeKind::Enum(e) => {
	e.discriminant_size.is_none() && e.variants.iter().all(|v| pred(type_.size, &v.items))
	}
	}
	}