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extern(C) int printf(const char*, ...);
/*******************************************/
interface D {
int foo();
}
class A : D {
int foo() { return 1; }
}
class B : A, D
{
override int foo() { return 2; }
}
class C : B, D {
override int foo() { return 3; }
}
void test1()
{
C c = new C;
A a = cast(A) c;
int j = a.foo();
printf("%d\n", j);
assert(j == 3);
B b = cast(B) c;
int k = b.foo();
printf("%d\n", k);
assert(k == 3);
D d1 = cast(D) c;
int l = d1.foo();
printf("%d\n", l);
assert(l == 3);
D d2 = cast(D) b;
int m = d2.foo();
printf("%d\n", m);
assert(m == 3);
}
/*******************************************/
interface D2 {
int foo();
}
class A2 : D2 {
int foo() { printf("A2\n"); return 1; }
}
class B2 : A2 {
override int foo() { printf("B2\n"); return 2; }
}
class C2 : B2, D2 {
override int foo() { printf("C2\n"); return 3; }
}
void test2()
{
int i;
C2 c = new C2;
D2 d = cast(D2)c;
i = c.foo();
assert(i == 3);
i = d.foo();
assert(i == 3);
B2 b = new B2;
if (cast(D2) b)
{
D2 e = cast(D2) b;
i = e.foo();
assert(i == 2);
}
else
assert(0);
A2 a;
if (cast(D2) a)
assert(0);
}
/*******************************************/
interface C3
{
int doLayout();
}
class A3
{
void print() { printf("A3::print\n"); }
}
class B3 : A3, C3
{
int doLayout() { printf( "B3::doLayout\n" ); return 17; }
}
void callLayout(A3 b)
{
printf("b = %p\n", b);
C3 cl = cast(C3)b;
printf("cl = %p\n", cl);
if (cl)
{ int i;
i = cl.doLayout();
assert(i == 17);
}
else
{ printf("the 'A3' you passed did not implement 'C3'\n" );
assert(0);
}
}
void test3()
{
callLayout(new B3());
}
/*******************************************/
template IContainer(T)
{
interface IContainer
{
alias Container!(int) selected_type;
bool isEmpty();
int enumerate();
}
}
template Container(T)
{
class Container : IContainer!(int)
{
bool isEmpty() { return false; }
int enumerate() { return 3; }
}
}
void Vector_test_IContainer_int()
{
alias IContainer!(int) icontainer_t;
}
void test4()
{
}
/*******************************************/
interface Italy(T)
{
alias Foo5!(int) selected_type;
bool isempty();
int enumerate();
}
class Foo5(T) : Italy!(int)
{
bool isempty() { return false; }
int enumerate() { return 3; }
}
void test5()
{
alias Italy!(int) Ic;
Foo5!(int) f = new Foo5!(int);
Ic i = cast(Ic)f;
assert(i.isempty() == false);
assert(i.enumerate() == 3);
}
/*******************************************/
int main (char[][] args)
{
test1();
test2();
test3();
test4();
test5();
printf("Success\n");
return 0;
}
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