enum OptionalIndex [src]

Index into nodes, or null.

Fields

root = 0

none = std.math.maxInt(u32)

Members

fromOptional (Function)
unwrap (Function)

Source

  pub const OptionalIndex = enum(u32) {
    root = 0,
    none = std.math.maxInt(u32),
    _,

    pub fn unwrap(oi: OptionalIndex) ?Index {
        return if (oi == .none) null else @enumFromInt(@intFromEnum(oi));
    }

    pub fn fromOptional(oi: ?Index) OptionalIndex {
        return if (oi) |i| i.toOptional() else .none;
    }
}  