Function join_all

wasm-pdk/example/src/lib.rs:25–32

(sep: String, parts: Args)

/// Variadic join over `parts`, separated by `sep`. Showcases the trailing `Args` param.
#[plugin_fn]
fn join_all(sep: String, parts: Args) -> Result<String> {
    let mut out = String::new();
    for (i, h) in parts.0.iter().enumerate() {
        if i > 0 { out.push_str(&sep); }
        out.push_str(&String::from_handle(h.raw())?);
    }
    Ok(out)
}

/// Accumulates slug parts across calls; exercises mutable state and Option/Result returns.
#[plugin_class]