view tests/mini/s.d @ 1047:6bb04dbee21f

Some calling convention work for x86-64: - Implement x86-64 extern(C), hopefully correctly. - Tried to be a bit smarter about extern(D) while I was there. Interestingly, this code seems to be generating more efficient code than gcc and llvm-gcc in some edge cases, like returning a `{ [7 x i8] }` loaded from a stack slot from an extern(C) function. (gcc generates 7 1-byte loads, while this code generates a 4-byte, a 2-byte and a 1-byte load) I also added some changes to make sure structs being returned from functions or passed in as parameters are stored in memory where the rest of the backend seems to expect them to be. These should be removed when support for first-class aggregates improves.
author Frits van Bommel <fvbommel wxs.nl>
date Fri, 06 Mar 2009 16:00:47 +0100
parents d92acb81a583
children
line wrap: on
line source

module s;

interface Inter
{
    void inter();
}

interface Inter2
{
    void inter2();
}

interface InterOne : Inter
{
    void interOne();
}

abstract class ClassAbstract : InterOne
{
    abstract void inter();
    abstract void interOne();
}

class TheClassOne : ClassAbstract
{
    void inter()
    {
    }
    void interOne()
    {
    }
}

class TheClassTwo : TheClassOne, Inter2
{
    long l;
    double d;

    void inter2()
    {
    }
}

extern(C) int printf(char*, ...);

void main()
{
    printf("classinfo test\n");
    {
        auto c = new TheClassOne;
        {
            auto ci = c.classinfo;
            printf("ci = %.*s\n", ci.name.length, ci.name.ptr);
            printf("ci.interfaces.length = %lu\n", ci.interfaces.length);
	    foreach (i, iface; ci.interfaces)
                printf("i[%d] = %.*s\n", i, iface.classinfo.name.length, iface.classinfo.name.ptr);
        }
    }
    {
        auto c = new TheClassTwo;
        {
            auto ci = c.classinfo;
            printf("ci = %.*s\n", ci.name.length, ci.name.ptr);
            printf("ci.interfaces.length = %lu\n", ci.interfaces.length);
	    foreach (i, iface; ci.interfaces)
                printf("i[%d] = %.*s\n", i, iface.classinfo.name.length, iface.classinfo.name.ptr);
        }
        InterOne i = c;
        {
            auto ci = i.classinfo;
            printf("ci = %.*s\n", ci.name.length, ci.name.ptr);
        }
        auto i2 = cast(Inter2)c;
        {
            auto ci = i2.classinfo;
            printf("ci = %.*s\n", ci.name.length, ci.name.ptr);
        }
        auto o = cast(Object)i2;
        {
            auto ci = o.classinfo;
            printf("ci = %.*s\n", ci.name.length, ci.name.ptr);
        }
    }
}