nylar / field-count

Derive the field count for a struct.

field_count

Derive the field count for a struct. Implements a FieldCount trait. Supports generic structs.

📦 Getting Started

# Cargo.toml

[dependencies]
field_count = "0.1"

// main.rs

use field_count::FieldCount;

#[derive(FieldCount)]
struct MyStruct {
    first_field: i32,
    second_field: String,
    third_field: u16,
}

fn main() {
    println!("{}", MyStruct::field_count()); // 3
}

🙏 Credits

This crate was inspired by the following StackOverflow answer by Lukas Kalbertodt.