view tango/lib/compiler/llvmdc/typeinfo/ti_Ashort.d @ 314:8d98e42ece93 trunk

[svn r335] The basics of exception handling are in place. Still need to make sure calls are turned into invokes everywhere. (NewExpression for instance) Still some rough edges and corner cases to figure out. Needs testing!
author ChristianK
date Wed, 02 Jul 2008 22:20:18 +0200
parents 7816aafeea3c
children
line wrap: on
line source


module typeinfo.ti_Ashort;

private import tango.stdc.string;

// short[]

class TypeInfo_As : TypeInfo_Array
{
    char[] toString() { return "short[]"; }

    hash_t getHash(void *p)
    {   short[] s = *cast(short[]*)p;
        size_t len = s.length;
        short *str = s.ptr;
        hash_t hash = 0;

        while (1)
        {
            switch (len)
            {
                case 0:
                    return hash;

                case 1:
                    hash *= 9;
                    hash += *cast(ushort *)str;
                    return hash;

                default:
                    hash *= 9;
                    hash += *cast(uint *)str;
                    str += 2;
                    len -= 2;
                    break;
            }
        }

        return hash;
    }

    int equals(void *p1, void *p2)
    {
        short[] s1 = *cast(short[]*)p1;
        short[] s2 = *cast(short[]*)p2;

        return s1.length == s2.length &&
               memcmp(cast(void *)s1, cast(void *)s2, s1.length * short.sizeof) == 0;
    }

    int compare(void *p1, void *p2)
    {
        short[] s1 = *cast(short[]*)p1;
        short[] s2 = *cast(short[]*)p2;
        size_t len = s1.length;

        if (s2.length < len)
            len = s2.length;
        for (size_t u = 0; u < len; u++)
        {
            int result = s1[u] - s2[u];
            if (result)
                return result;
        }
        if (s1.length < s2.length)
            return -1;
        else if (s1.length > s2.length)
            return 1;
        return 0;
    }

    size_t tsize()
    {
        return (short[]).sizeof;
    }

    uint flags()
    {
        return 1;
    }

    TypeInfo next()
    {
        return typeid(short);
    }
}


// ushort[]

class TypeInfo_At : TypeInfo_As
{
    char[] toString() { return "ushort[]"; }

    int compare(void *p1, void *p2)
    {
        ushort[] s1 = *cast(ushort[]*)p1;
        ushort[] s2 = *cast(ushort[]*)p2;
        size_t len = s1.length;

        if (s2.length < len)
            len = s2.length;
        for (size_t u = 0; u < len; u++)
        {
            int result = s1[u] - s2[u];
            if (result)
                return result;
        }
        if (s1.length < s2.length)
            return -1;
        else if (s1.length > s2.length)
            return 1;
        return 0;
    }

    TypeInfo next()
    {
        return typeid(ushort);
    }
}

// wchar[]

class TypeInfo_Au : TypeInfo_At
{
    char[] toString() { return "wchar[]"; }

    TypeInfo next()
    {
        return typeid(wchar);
    }
}