On Wed, 23 Feb 2011 10:34:04 -0500, spir <[email protected]> wrote:
Hello,
I have read several times that alias this is a way to implement
inheritance for structs.
I am simply unable to imagine how to use this feature that way. Has
anyone an example?
It allows *some* simulation of inheritance. However, it does not
implement polymorphism.
What it does is allow specialization and upcasts. For example:
struct S
{
int x;
void foo() {}
}
struct T
{
S s;
void foo2() {};
int y;
alias s this;
}
T t;
t.foo(); // translates to t.s.foo();
t.x = 5; // translates to t.s.x = 5;
S s = t; // translates to S s = t.s;
-Steve
