quack 0.4.0

quack

A library for enabling compile-time duck typing in D.

Duck Typing

Duck typing is a reference to the phrase "if it walks like a duck, and quacks like a duck, then it's probably a duck." The idea is that if a struct or class has all the same members as another, it should be usable as the other.

Examples

import quack;

struct A
{
  int x;
}

struct B
{
  A a;
  alias a this;
}

void someFunction( T )( T t ) if( extends!( T, A ) )
{

}

void main()
{
  B b;
  someFunction( b );
}