Macro branded 

macro_rules! branded {
    (
        $(#[$attr:meta])*
        $vis:vis struct $ident:ident<$($generic:ident),+ $(,)?> ( $ty:ty ) $(as $ts_name:literal)?
    ) => { ... };
    (
        $(#[$attr:meta])*
        $vis:vis struct $ident:ident ( $ty:ty ) $(as $ts_name:literal)?
    ) => { ... };
    (@brand $ident:ident $ts_name:literal) => { ... };
    (@brand $ident:ident) => { ... };
}

Create a branded tuple struct type that exports to TypeScript with a custom name.

This macro generates a single-field tuple struct and implements the Type trait for it, allowing you to create “branded” types that maintain distinct identities in TypeScript.

Examples

Basic usage:

branded!(pub struct AccountId(String));

With custom TypeScript name:

branded!(pub struct AccountId(String) as "accountId");

With attributes:

branded!(#[derive(Serialize)] pub struct UserId(String));

With generics:

branded!(pub struct Id<T>(T) as "id");

Requirements

This macro requires that the specta crate is in scope and available as a dependency.

Notes

• The struct must be a tuple struct with exactly one field
• The Type implementation is currently a todo!() placeholder
• The as "name" syntax is optional; if omitted, the struct name is used