A new class -->String
David B. Held
dheld at codelogicconsulting.com
Thu Apr 5 01:03:13 PDT 2007
Jari-Matti Mäkelä wrote:
> David B. Held wrote:
>> jinheking wrote:
>>> I want to make a Class like java's String Class.
>>> [...]
>> Well, I believe the intention is that when 'invariant' gets added to the
>> language, we will get string thusly:
>>
>> alias invariant char[] string;
>>
>> Note that this leaves out all of the member functions that one expects
>> from String. However, with immutable strings, it is perfectly safe
>> (and, perhaps, preferable) to implement all that functionality as free
>> functions. If there were a way to switch between method call and free
>> function syntax, then this distinction would become moot (and maybe we
>> will get that as well...).
>
> D has that already :)
>
> char[] moo;
>
> void doSomething(char[] baa) {
> ...
> }
>
> void main() {
> moo.doSomething();
> }
Well, it isn't general:
void foo(int x) { int y = x; }
unittest
{
int z = 5;
z.foo();
}
test.d(43): Error: no property 'foo' for type 'int'
test.d(43): Error: function expected before (), not 1 of type int
Dave
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