digitalmars.D - Extending UFCS
- Piotr Szturmaj (25/25) Aug 29 2012 The current possibility of UFCS is:
- Piotr Szturmaj (17/18) Aug 29 2012 Another example:
- Tommi (5/5) Aug 30 2012 A similar feature suggestion over there:
- Jacob Carlborg (4/29) Aug 29 2012 I would like to have this feature. I've asked about it before.
- Tommi (7/32) Aug 29 2012 See my suggestion for a similar feature:
The current possibility of UFCS is:
struct S { }
void func(S s) { }
S s;
s.func(); // equivalent of func(s);
why not add:
template sizeInInts(T)
{
enum sizeInInts = T.sizeof / 4;
}
S.sizeInInts // equivalent of sizeInInts!S
Is it worth it? I mean adding static members to aggregate types.
Consider another example:
struct MD5 { ... }
struct SHA1 { ... }
string hash(Digest)(const(void)[] data)
if (isDigest!Digest)
{
Digest d;
ubyte[DigestLen!Digest] h;
d.put(cast(const(ubyte)[])data);
d.finish(h);
return xformat("%(%02x%)", h);
}
and instead of writing hash!SHA1("abc"), write SHA1.hash("abc");
Aug 29 2012
Piotr Szturmaj wrote:
and instead of writing hash!SHA1("abc"), write SHA1.hash("abc");
Another example:
template MutablePointer(T)
{
alias PointerTarget!(Unqual!T) MutablePointer;
}
alias const(int) CInt;
static assert(is(MutablePointer!CInt == int*));
Alternative syntax:
template MutablePointer(T)
{
alias T.Unqual.PointerTarget MutablePointer;
}
alias const(int) CInt;
static assert(is(CInt.MutablePointer == int*));
This is just for convenience, as with UFCS. Second syntax is IMO a lot
cleaner.
Aug 29 2012
A similar feature suggestion over there: http://forum.dlang.org/thread/uufohvapbyceuaylostl forum.dlang.org Also notice the enhancement request I made, there's more discussion about it: http://d.puremagic.com/issues/show_bug.cgi?id=8381
Aug 30 2012
On 2012-08-29 22:20, Piotr Szturmaj wrote:
The current possibility of UFCS is:
struct S { }
void func(S s) { }
S s;
s.func(); // equivalent of func(s);
why not add:
template sizeInInts(T)
{
enum sizeInInts = T.sizeof / 4;
}
S.sizeInInts // equivalent of sizeInInts!S
Is it worth it? I mean adding static members to aggregate types.
Consider another example:
struct MD5 { ... }
struct SHA1 { ... }
string hash(Digest)(const(void)[] data)
if (isDigest!Digest)
{
Digest d;
ubyte[DigestLen!Digest] h;
d.put(cast(const(ubyte)[])data);
d.finish(h);
return xformat("%(%02x%)", h);
}
and instead of writing hash!SHA1("abc"), write SHA1.hash("abc");
I would like to have this feature. I've asked about it before.
--
/Jacob Carlborg
Aug 29 2012
On Wednesday, 29 August 2012 at 20:20:04 UTC, Piotr Szturmaj
wrote:
The current possibility of UFCS is:
struct S { }
void func(S s) { }
S s;
s.func(); // equivalent of func(s);
why not add:
template sizeInInts(T)
{
enum sizeInInts = T.sizeof / 4;
}
S.sizeInInts // equivalent of sizeInInts!S
Is it worth it? I mean adding static members to aggregate types.
Consider another example:
struct MD5 { ... }
struct SHA1 { ... }
string hash(Digest)(const(void)[] data)
if (isDigest!Digest)
{
Digest d;
ubyte[DigestLen!Digest] h;
d.put(cast(const(ubyte)[])data);
d.finish(h);
return xformat("%(%02x%)", h);
}
and instead of writing hash!SHA1("abc"), write SHA1.hash("abc");
See my suggestion for a similar feature:
http://forum.dlang.org/thread/uufohvapbyceuaylostl forum.dlang.org
And notice the enhancement request I made. There's more
discussion there:
http://d.puremagic.com/issues/show_bug.cgi?id=8381
Aug 29 2012









"Tommi" <tommitissari hotmail.com> 