INNER CODE UNIT · Rust

fmt

jub0t/Concat · src/crates/concat-api/src/lib.rs:91

    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        f.write_str(match self {
            Holder::Window => "the window",
            Holder::Api => "the API",
        })
    }
}

/// The project folders open on this machine and who has each, shared
/// between a window and the API it embeds, so neither opens a folder the
/// other is editing and saves over its work (audit 2026-09-23, #5). Cheap
/// to clone; every clone is the same register.
#[derive(Clone, Default)]
pub struct OpenProjects(Arc<Mutex<BTreeMap<String, Holder>>>);

impl OpenProjects {
    /// Claims `path` for `holder`. Refused, naming who has it, when the
    /// other side does; claiming again what one already holds is fine.

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