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Editing: lib.rs.tt
use magnus::{function, prelude::*, Error, Ruby}; fn hello(subject: String) -> String { format!("Hello from Rust, {subject}!") } #[magnus::init] fn init(ruby: &Ruby) -> Result<(), Error> { let module = ruby.<%= config[:constant_array].map {|c| "define_module(#{c.dump})?"}.join(".") %>; module.define_singleton_method("hello", function!(hello, 1))?; Ok(()) }
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