Dear,

why this code fail to build http://dpaste.dzfl.pl/8ef3898b05d2 ?

I try to have a structure which is used to fill information from
a file.
And I use UDA to tell : to get this field you need to read from x
to y using a delegate.


thanks for your advise

On Monday, 3 November 2014 at 23:53:53 UTC, bioinfornatics wrote:
> Dear,
>
> why this code fail to build http://dpaste.dzfl.pl/8ef3898b05d2 ?
>
> I try to have a structure which is used to fill information from
> a file.
> And I use UDA to tell : to get this field you need to read from x
> to y using a delegate.
>
>
> thanks for your advise

with ldc and dmdfe 2.066 i got:

$ ldc2 test.d
test.d(40): Error: type Section!((letter) => letter == '>',
(letter) => letter == '\x0a') has no value
tuple((Section!((letter) => letter == '>', (letter) => letter ==
'\x0a')))
Section!((letter) => letter == '>', (letter) => letter == '\x0a')
test.d(92): Error: this for countUntil needs to be type Fasta not
type Parser!(Fasta, ByChunk)
test.d(99): Error: this for countUntil needs to be type Fasta not
type Parser!(Fasta, ByChunk)
test.d(101): Error: this for countUntil needs to be type Fasta
not type Parser!(Fasta, ByChunk)
test.d(109): Error: this for countUntil needs to be type Fasta
not type Parser!(Fasta, ByChunk)
test.d(43): Error: type Section!((letter) => letter >= 'A' &&
letter <= 'z', (letter) => letter == '\x0a') has no value
tuple((Section!((letter) => letter >= 'A' && letter <= 'z',
(letter) => letter == '\x0a')))
Section!((letter) => letter >= 'A' && letter <= 'z', (letter) =>
letter == '\x0a')
test.d(92): Error: this for countUntil needs to be type Fasta not
type Parser!(Fasta, ByChunk)
test.d(99): Error: this for countUntil needs to be type Fasta not
type Parser!(Fasta, ByChunk)
test.d(101): Error: this for countUntil needs to be type Fasta
not type Parser!(Fasta, ByChunk)
test.d(109): Error: this for countUntil needs to be type Fasta
not type Parser!(Fasta, ByChunk)
test.d(7): Error: template instance test.Parser!(Fasta, ByChunk)
error instantiating

On Tuesday, 4 November 2014 at 00:32:52 UTC, bioinfornatics wrote:
> On Monday, 3 November 2014 at 23:53:53 UTC, bioinfornatics wrote:
>> Dear,
>>
>> why this code fail to build http://dpaste.dzfl.pl/8ef3898b05d2 ?
>>
>> I try to have a structure which is used to fill information from
>> a file.
>> And I use UDA to tell : to get this field you need to read from x
>> to y using a delegate.
>>
>>
>> thanks for your advise
>
> with ldc and dmdfe 2.066 i got:
>
> $ ldc2 test.d
> test.d(40): Error: type Section!((letter) => letter == '>',
> (letter) => letter == '\x0a') has no value
> tuple((Section!((letter) => letter == '>', (letter) => letter ==
> '\x0a')))
> Section!((letter) => letter == '>', (letter) => letter == '\x0a')
> test.d(92): Error: this for countUntil needs to be type Fasta not
> type Parser!(Fasta, ByChunk)
> test.d(99): Error: this for countUntil needs to be type Fasta not
> type Parser!(Fasta, ByChunk)
> test.d(101): Error: this for countUntil needs to be type Fasta
> not type Parser!(Fasta, ByChunk)
> test.d(109): Error: this for countUntil needs to be type Fasta
> not type Parser!(Fasta, ByChunk)
> test.d(43): Error: type Section!((letter) => letter >= 'A' &&
> letter <= 'z', (letter) => letter == '\x0a') has no value
> tuple((Section!((letter) => letter >= 'A' && letter <= 'z',
> (letter) => letter == '\x0a')))
> Section!((letter) => letter >= 'A' && letter <= 'z', (letter) =>
> letter == '\x0a')
> test.d(92): Error: this for countUntil needs to be type Fasta not
> type Parser!(Fasta, ByChunk)
> test.d(99): Error: this for countUntil needs to be type Fasta not
> type Parser!(Fasta, ByChunk)
> test.d(101): Error: this for countUntil needs to be type Fasta
> not type Parser!(Fasta, ByChunk)
> test.d(109): Error: this for countUntil needs to be type Fasta
> not type Parser!(Fasta, ByChunk)
> test.d(7): Error: template instance test.Parser!(Fasta, ByChunk)
> error instantiating


No one can to help about uda?

On 11/04/2014 01:58 PM, bioinfornatics wrote:

>> test.d(40): Error: type Section!((letter) => letter == '>',
>> (letter) => letter == '\x0a') has no value

You have this line:

    @Section!(/* ... */)

Although that is a type name, there is a bug somewhere and sometimes you have to use a 'value' as a UDA. (We talked about this recently but I don't remember the details.) So make it an object so that it is a 'value':

    @Section!(/* ... */)()

(You have another instance of that.)

You will have to deal with the next set of error messages now. :-/

Ali

On Tuesday, 4 November 2014 at 22:06:03 UTC, Ali Çehreli wrote:
> On 11/04/2014 01:58 PM, bioinfornatics wrote:
>
> >> test.d(40): Error: type Section!((letter) => letter == '>',
> >> (letter) => letter == '\x0a') has no value
>
> You have this line:
>
>     @Section!(/* ... */)
>
> Although that is a type name, there is a bug somewhere and sometimes you have to use a 'value' as a UDA. (We talked about this recently but I don't remember the details.) So make it an object so that it is a 'value':
>
>     @Section!(/* ... */)()
>
> (You have another instance of that.)
>
> You will have to deal with the next set of error messages now. :-/
>
> Ali

Thanks Ali

If i understand well, that is a dmdfe bug ?

i yes that is weird as using @Section!(/* ... */)() give to me
something type of void then I can't filter to the desired  uda

On Wednesday, 5 November 2014 at 21:57:42 UTC, bioinfornatics
wrote:
> On Tuesday, 4 November 2014 at 22:06:03 UTC, Ali Çehreli wrote:
>> On 11/04/2014 01:58 PM, bioinfornatics wrote:
>>
>> >> test.d(40): Error: type Section!((letter) => letter == '>',
>> >> (letter) => letter == '\x0a') has no value
>>
>> You have this line:
>>
>>    @Section!(/* ... */)
>>
>> Although that is a type name, there is a bug somewhere and sometimes you have to use a 'value' as a UDA. (We talked about this recently but I don't remember the details.) So make it an object so that it is a 'value':
>>
>>    @Section!(/* ... */)()
>>
>> (You have another instance of that.)
>>
>> You will have to deal with the next set of error messages now. :-/
>>
>> Ali
>
> Thanks Ali
>
> If i understand well, that is a dmdfe bug ?
>
> i yes that is weird as using @Section!(/* ... */)() give to me
> something type of void then I can't filter to the desired  uda

Oh that is ok, I replaced

static if(is(attr : Section!T, T...))
by
static if(is(Section!(T, T)))