Crate fast_new_type

This crate serves the purporse of implement Deref,DerefMut,AsRef,AsMut and From in new types,either for the first value of a struct,the "value" or "slot" field or the specified in the attribute.

With default-features = false you can opt-out of the From impl which in some cases is not desirable.

This crate is no_std.

Examples

use fast_new_type::new_type;

#[new_type]
struct FirstField(u32, u16);

#[new_type]
struct ValueField {
    value: u16,
    other_meta: u16,
}

#[new_type]
struct SlotField {
    slot: u16,
    other_meta: u16,
}

#[new_type(other)]
struct SpecField {
    other: u16,
    other_meta: u16,
}

Attribute Macros

new_type

Implement common traits in a wrapper for a type,with the specifie field as arg where needed.