view tests/mini/nested16.d @ 1275:bedf0bfb8fdb

Implement first D-specific optimization pass: -simplify-drtcalls. It uses the machinery of the standard -simplify-libcalls pass, but optimizes calls to the D runtime instead of calls to C libraries. At the moment, these optimizations are implemented by this pass: - Avoid the runtime call for `arr.length = newlen` if it can determine that the new length isn't longer than the old one. - Ditto for `cast(T[]) arr` if it will clearly always succeed. (e.g. if the length of the original array is zero, or if the old element size is a multiple of the new element size)
author Frits van Bommel <fvbommel wxs.nl>
date Tue, 28 Apr 2009 21:58:06 +0200
parents a34078905d01
children
line wrap: on
line source

module mini.nested16;

void main()
{
    int idx = 123;
    int func(int* idp)
    {
        void foo()
        {
            void bar(int* idp)
            {
                auto c = new class
                {
                    void mem()
                    {
                        scope(exit) ++*idp;
                    }
                };
                auto dg = () {
                    c.mem();
                };
                dg();
            }
            bar(idp);
            ++*idp;
        }
        foo();
        return ++*idp;
    }
    assert(func(&idx) == 126);
}