Hello, is there way to reduce this condition:
> if (c1) {
>     foo();
> } else {
>     if (c2) {
>         bar();
>     } else {
>         if (c3) {
>         ...
>         }
>     }
> }

for instance in kotlin it can be replace with this:
> when {
>     c1 -> foo(),
>     c2 -> bar(),
>     c3 -> ...
>     else -> someDefault()
> }

On Thursday, 23 November 2017 at 05:19:27 UTC, Andrey wrote:
> Hello, is there way to reduce this condition:
>> if (c1) {
>>     foo();
>> } else {
>>     if (c2) {
>>         bar();
>>     } else {
>>         if (c3) {
>>         ...
>>         }
>>     }
>> }
>
> for instance in kotlin it can be replace with this:
>> when {
>>     c1 -> foo(),
>>     c2 -> bar(),
>>     c3 -> ...
>>     else -> someDefault()
>> }

do
{
    if (c1) { foo(); break;}
    if (c2) { bar(); break;}
    if (c3) { baz(); break;}
    someDefault();
} while (false);

On Thursday, 23 November 2017 at 05:19:27 UTC, Andrey wrote:
> Hello, is there way to reduce this condition:
>> if (c1) {
>>     foo();
>> } else {
>>     if (c2) {
>>         bar();
>>     } else {
>>         if (c3) {
>>         ...
>>         }
>>     }
>> }
>
> for instance in kotlin it can be replace with this:
>> when {
>>     c1 -> foo(),
>>     c2 -> bar(),
>>     c3 -> ...
>>     else -> someDefault()
>> }

if (c1) foo()
else if (c2) bar();
else if (c3) ...
else someDefault();

?

On Thursday, 23 November 2017 at 08:27:54 UTC, Andrea Fontana wrote:
> On Thursday, 23 November 2017 at 05:19:27 UTC, Andrey wrote:
>> Hello, is there way to reduce this condition:
>>> if (c1) {
>>>     foo();
>>> } else {
>>>     if (c2) {
>>>         bar();
>>>     } else {
>>>         if (c3) {
>>>         ...
>>>         }
>>>     }
>>> }
>>
>> for instance in kotlin it can be replace with this:
>>> when {
>>>     c1 -> foo(),
>>>     c2 -> bar(),
>>>     c3 -> ...
>>>     else -> someDefault()
>>> }
>
> if (c1) foo()
> else if (c2) bar();
> else if (c3) ...
> else someDefault();
>
> ?

haha, yes you are right, sorry for stupid question, I recently began to study Kotlin and noticed than `when` is a great feature )

On Thursday, 23 November 2017 at 05:19:27 UTC, Andrey wrote:
> for instance in kotlin it can be replace with this:
>> when {
>>     c1 -> foo(),
>>     c2 -> bar(),
>>     c3 -> ...
>>     else -> someDefault()
>> }

The `switch` statement covers some of these cases too.

On Thursday, 23 November 2017 at 13:47:37 UTC, Adam D. Ruppe wrote:
> On Thursday, 23 November 2017 at 05:19:27 UTC, Andrey wrote:
>> for instance in kotlin it can be replace with this:
>>> when {
>>>     c1 -> foo(),
>>>     c2 -> bar(),
>>>     c3 -> ...
>>>     else -> someDefault()
>>> }
>
> The `switch` statement covers some of these cases too.

Anyway you can create something like this:
https://run.dlang.io/is/7pbVXT

23.11.2017 17:16, Andrea Fontana пишет:
> On Thursday, 23 November 2017 at 13:47:37 UTC, Adam D. Ruppe wrote:
>> On Thursday, 23 November 2017 at 05:19:27 UTC, Andrey wrote:
>>> for instance in kotlin it can be replace with this:
>>>> when {
>>>>     c1 -> foo(),
>>>>     c2 -> bar(),
>>>>     c3 -> ...
>>>>     else -> someDefault()
>>>> }
>>
>> The `switch` statement covers some of these cases too.
> 
> Anyway you can create something like this:
> https://run.dlang.io/is/7pbVXT
> 
I really like Dlang very much

On Thursday, 23 November 2017 at 14:16:25 UTC, Andrea Fontana wrote:
> On Thursday, 23 November 2017 at 13:47:37 UTC, Adam D. Ruppe wrote:
>> On Thursday, 23 November 2017 at 05:19:27 UTC, Andrey wrote:
>>> for instance in kotlin it can be replace with this:
>>>> when {
>>>>     c1 -> foo(),
>>>>     c2 -> bar(),
>>>>     c3 -> ...
>>>>     else -> someDefault()
>>>> }
>>
>> The `switch` statement covers some of these cases too.
>
> Anyway you can create something like this:
> https://run.dlang.io/is/7pbVXT

Syntax #4

 // Syntax #4
    when
	(
        c1, { writeln("first"); 	},
        c2, { writeln("second"); },
        { writeln("default"); }	
    );

:)

On Thursday, 23 November 2017 at 14:16:25 UTC, Andrea Fontana wrote:
> On Thursday, 23 November 2017 at 13:47:37 UTC, Adam D. Ruppe wrote:
>> On Thursday, 23 November 2017 at 05:19:27 UTC, Andrey wrote:
>>> for instance in kotlin it can be replace with this:
>>>> when {
>>>>     c1 -> foo(),
>>>>     c2 -> bar(),
>>>>     c3 -> ...
>>>>     else -> someDefault()
>>>> }
>>
>> The `switch` statement covers some of these cases too.
>
> Anyway you can create something like this:
> https://run.dlang.io/is/7pbVXT

That's pretty cool!

On 11/23/2017 06:16 AM, Andrea Fontana wrote:
> On Thursday, 23 November 2017 at 13:47:37 UTC, Adam D. Ruppe wrote:
>> On Thursday, 23 November 2017 at 05:19:27 UTC, Andrey wrote:
>>> for instance in kotlin it can be replace with this:
>>>> when {
>>>>     c1 -> foo(),
>>>>     c2 -> bar(),
>>>>     c3 -> ...
>>>>     else -> someDefault()
>>>> }
>>
>> The `switch` statement covers some of these cases too.
> 
> Anyway you can create something like this:
> https://run.dlang.io/is/7pbVXT
> 

I tried to implement the following but gave up because I could not ensure short circuit behaviour.

    when(
        c1.then(foo()),
        c2.then(bar()),
        otherwise(zar())
    );

Possible?

Ali