String mixin syntax sugar

[Mantis]

21.03.2012 13:35, kennytm пишет:
> Mantis<mail.mantis.88 at gmail.com>  wrote:
>> [...]
>> # identifier statement
>>
> You mean 'declaration'.

Not necessarily, this could be used anywhere a mixin can be.
>> [...]
> The syntax may conflict with '#line'.

I didn't know. The choice for the symbol is not that important however.

> What to do where there are multiple attributes? E.g.
>
> #license!"BSD" @safe #memoize pure nothrow auto invertMatrix(T)(T[]
> elements) if (isArithmetic!T) { ... }

Evaluation order stays the same as in this example, the improvement is 
purely syntactical:
//
import std.stdio, std.array;

string m1( string s ) { return replace( s, "foo", "bar" ); }
string m2( string s ) { return replace( s, "bar", "baz" ); }

mixin( m1( q{ mixin( m2( q{ void foo( int i ) {
     writeln( i );
}}));}));

void main() {
     baz( 42 );
}
//
> What to do with .di files?
>
> // in .di
> #handler void onLoad();
> // in .d
> #handler void onLoad() { .... }

Since the function receives a string, it can deal with declarations 
differently from definitions, it's only a matter of parser.
> Besides, what's wrong with using '@'?
>
> @serialize int a;
Builtin annotations' names are not reserved keywords, so this would be 
possible and ambiguous:

string safe( string s );
@safe void foo(); // what @safe stands for?