D vs OWKN Language at LLnagoya

D vs C pLus pLus
2011/11/5
LL #llnagoya

• @repeatedlly
• Come from Tokyo!
• I can write D Programming Language
•
• Please give me native F# compiler!
• Twitter monitored by Ganglia

http://www35.atwiki.jp/futsuu/pages/1.html

Fluent

http://atnd.org/events/21711

rdmd --eval='writeln("hoge");'

struct RedBull
{
int countPerDay = 2;
} // ← Cool!

void f(Foo* foo)
{
foo.func(0);
}

C++ 11
const auto num = foo.func();

Many signatures!

@safe @property pure nothrow
intout(int)[] func(inout(int)[] arg) const;

{}

void delegate() pure nothrow @safe

MinType!(T1, T2, T) min(T1, T2, T...)(T1 a, T2 b, T xs)

@safe int f(int a, int b) pure nothrow
{
return min(a, b);
}

pure nothrow @safe int(int a, int b, () xs)

*
int[] foo(int[] a, int x) {}

const(int)[] foo(const(int)[] a, int x) {}

immutable(int)[] foo(immutable(int)[] a, int x) {}

inout(int)[] foo(inout(int)[] a, int x) {}

CTFE

function template

foreach struct
array
associative array
if
for
new(without class) regex

ulong gen()
{
Random r;
popFrontN(r, 1000);
return r.front;
}

( )

string hogeMatch(string line)
{
enum re = ctRegex(“hoge”);
const matched = match(line, re);
return matched.hit;
}

try - catch - ﬁnally!
static assert({
int n;
try {
n = 2;
} catch (Exception e) {}
ﬁnally {

n = 3;
}
}());

Class in CTFE

https://github.com/donc/dmd/tree/ctfeclass

We will use CT Exception :)

(ry
class C
{
invariant() {}
int func(int a)
in { assert(a > 10); }
out(r) { assert(r > a * 2); }
body { /* */ }
}
Boost.Contract (ry

Orbit Package Manager

https://github.com/jacob-carlborg/orbit

Orbit Spec example
name "orbit"
summary "Orbit is a package manager"
version "0.0.1"
ﬁles Dir["**/*.{d,rb,conf}"]
executables %w[orb]
bindir "bin"
build "dsss"

Ruby like :)

Wishlist
• Compiler as a Library
• Thread Local GC
• Truly IO module
• STM
• Light-weight Thread (me!)
• Concurrent Revisions (me!)

D vs OWKN Language at LLnagoya

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