digitalmars.D.learn - UDA failling to build when using delegate

bioinfornatics (7/7) Nov 03 2014 Dear,

bioinfornatics (32/40) Nov 03 2014 with ldc and dmdfe 2.066 i got:

bioinfornatics (2/54) Nov 04 2014 No one can to help about uda?

=?UTF-8?B?QWxpIMOHZWhyZWxp?= (10/12) Nov 04 2014 You have this line:

bioinfornatics (5/19) Nov 05 2014 Thanks Ali

bioinfornatics (6/33) Nov 05 2014 Oh that is ok, I replaced

"bioinfornatics" <bioinfornatics fedoraproject.org> writes:

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

Nov 03 2014

"bioinfornatics" <bioinfornatics fedoraproject.org> writes:

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

Nov 03 2014

"bioinfornatics" <bioinfornatics fedoraproject.org> writes:

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?

Nov 04 2014

=?UTF-8?B?QWxpIMOHZWhyZWxp?= <acehreli yahoo.com> writes:

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

Nov 04 2014

"bioinfornatics" <bioinfornatics fedoraproject.org> writes:

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

Nov 05 2014

"bioinfornatics" <bioinfornatics fedoraproject.org> writes:

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)))

Nov 05 2014

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digitalmars.D.learn - UDA failling to build when using delegate