alias: Revealing Hidden Names of Superclasses
Get to learn how an alias can be used for revealing hidden names of superclasses.
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Revealing hidden names of superclasses
When the same function name appears both in the superclass and in the subclass, the matching names that are in the superclass are hidden. Even a single name in the subclass is sufficient to hide all of the names of the superclass that match that name:
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class Super {void foo(int x) {// ...}}class Sub : Super {void foo() {// ...}}void main() {auto object = new Sub;object.foo(42); // ← compilation ERRORobject.foo(67, 49); // ← compilation ERROR}
Since the argument is 42, an int value, one might expect that the Super.foo function that takes an int would be called for that use. ...