Derive Macro CustomDebug

#[derive(CustomDebug)]
{
    // Attributes available to this derive:
    #[debug]
}

A procedural macro that implements the std::fmt::Debug trait for a type, with support for the #[debug(skip)] attribute to skip specific fields.

This macro derives a custom Debug implementation that behaves like the standard library’s Debug derive, but allows individual fields to be excluded from the debug output by annotating them with #[debug(skip)].

Supported Attributes

• #[debug(skip)]: Excludes the field from the debug output

Examples

Struct Example

use lombok_macros::*;

#[derive(CustomDebug)]
struct User {
    name: String,
    #[debug(skip)]
    password: String,
    email: String,
}

let user = User {
    name: "Alice".to_string(),
    password: "secret123".to_string(),
    email: "alice@example.com".to_string(),
};
println!("{:?}", user);
// Output: User { name: "Alice", email: "alice@example.com" }

Enum Example

use lombok_macros::*;

#[derive(CustomDebug)]
enum Response {
    Success { data: String },
    Error {
        message: String,
        #[debug(skip)]
        internal_code: u32,
    },
}

Parameters

• input: The input token stream representing the Rust item (struct, enum, etc.) for which the Debug implementation will be generated.

Returns

• TokenStream: The generated std::fmt::Debug implementation for the type that respects the #[debug(skip)] attribute.