Add ImMap.Add or GetOrAdd method

dadhi / ImTools

Fast and memory-efficient immutable collections and helper data structures

MIT License

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Closed dadhi closed 5 years ago

dadhi commented 5 years ago

public static ImMap<T> GetOrAdd<T>(
    this ImMap<T> map,
    int key, out T value
) where T : class, new()
{}

dadhi commented 5 years ago

Ended up with AddOrKeep method. Returning out value is as perf hit :/