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aliasd

Aliasing object methods in D

Suppose I've imported std.algorithm.BinaryHeap, and want to call its removeAny method something else (for instance, delete_min). If I were importing the method from std.algorithm itself, I could write something like this:

import std.algorithm: removeAny;
alias delete_min = removeAny;

However, I obviously cannot do that, as removeAny is a method of BinaryHeap. How can I alias it to something else?

Solution

  • I think the best, if not the only way to do this is to define a short extension method:

    auto delete_min(T...)(ref BinaryHeap _this, T other_args_here) {
    return _this.removeAny(other_args_here);
}

    Then you can call that as yourthing.delete_min(other_args) and the compiler ought to inline it removing the other little layer.