On Tue, Jul 15, 2008 at 7:20 PM, Sam Liddicott <[EMAIL PROTECTED]> wrote:
> * Sam Liddicott wrote, On 15/07/08 10:15:
>> I find this notation ugly:
>>
>> notify += (s, p) => {
>> stdout.printf("property `%s' has changed!\n",
>> p.name);
>> };
>>
>>
>> Is there a reason why the => should be required?
>>
>> notify += (s, p) {
>> stdout.printf("property `%s' has changed!\n",
>> p.name);
>> };
>>
>>
>> seems a lot more natural, all that's missing is the name cos there isn't
>> one...
>>
>> Does the => signifiy anything particular?
I don't know for sure, but my guess is that it makes parsing and parse
error recovery easier. It is also similar to the lambda expression
syntax in C#, which Vala's syntax is based on.
>>
> And in the advanced example:
> http://live.gnome.org/Vala/AdvancedSample
>
>
> what does the s signify in
>
> this.foo += s => {
> stdout.printf ("Lambda expression %s!\n", name);
> };
>
's' is the formal parameter of the function, just like s and p are
formal parameters in the first example. You could put parentheses
around it if you like, but you don't need to because in that case
there's only one parameter.
>
> Thanks
>
> Sam
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>
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