Project deployment
It's not look like question about D, but because I developing some web site on D I asking this question there. The question is about how to organize automative deployment process which include building executables, shared libraries, running unittests etc. Then I need it to place these builded files, resources (like html-templates, images, style sheets and other documents) in directories from which application will run. Also creation of documentation for libraries, aplications is needed. I have no experience in deployment process so I'll be thankful any advices how to start. It could be links for some articles, tools that helps to solve this problem. What is about *dub*? What kind of programme is it. Is it tool for only building application but not deploying? If no where I could read about these features (may be some examples exist)
Re: Project deployment
On Saturday, 1 March 2014 at 10:18:09 UTC, Uranuz wrote: It's not look like question about D, but because I developing some web site on D I asking this question there. The question is about how to organize automative deployment process which include building executables, shared libraries, running unittests etc. Then I need it to place these builded files, resources (like html-templates, images, style sheets and other documents) in directories from which application will run. Also creation of documentation for libraries, aplications is needed. I have no experience in deployment process so I'll be thankful any advices how to start. It could be links for some articles, tools that helps to solve this problem. What is about *dub*? What kind of programme is it. Is it tool for only building application but not deploying? If no where I could read about these features (may be some examples exist) If your utilising e.g. Vibe-d or templ-d for templating then templates will be compiled into the application. The raw source files are not required at runtime. It would be possible for the same thing for e.g. css files. However this is a little bit more difficult. Dub is a build manager for D. Its responsibility is to compile the executable. In other words, make it ready for deployment. It may not create e.g. .deb files but it will provide you with your executable and resources should you configure it so. Although copying directories is a little intensive with raw cli commands to do so. Dub can handle creation of documentation in the form of html files, as does dmd itself. Its just a switch you need to use. However you do need to adhere to ddoc for this. The alternative to using the import(file) syntax to load a file at compile time (do note you need to add a string import path to the compiler i.e. -J.) is to use e.g. a binary file to D file converter [0]. Which would allow you to compile in all your resources. Please note however, because of the differences in e.g. Linux distributions you will be required to compile for the target especially. So e.g. in a VM. [0] https://github.com/rikkimax/Bin2D
Strange _xopEquals function
I downloaded druntime from https://github.com/xomboverlord/xomb-bare-bones/tree/master. It's druntime made for bare bones XOmB OS. If I want to compile it to library, dmd return error undefined identifier _xopEquals. Then I looked to official druntime and I found function _xopEquals. When I add this function to XOmB druntime, nothing changed (yielding undefined identifier _xopEquals did you mean function _xopEquals? ... funny error)...And second question, is there any documentation for druntime? And I don't mean source code ...
Re: GC.BlkAttr.FINALIZE
On Saturday, 1 March 2014 at 01:28:06 UTC, Steven Schveighoffer wrote: On Fri, 28 Feb 2014 18:45:50 -0500, Namespace rswhi...@googlemail.com wrote: We need a precise GC to get struct dtors to work, the alternative would be extremely hackish. Since I expect/fear that such a implementation is not done in the next 12 months: what would be the alternative? Examine the GC code, and figure out a way to hook the finalizer. Look for FINALIZE. Another crude but effective option would be to wrap the struct in a class. May not actually be that bad, depending on the size of the struct (blocks come in chunks of 16, 32, 64, etc.). -Steve I tried to enable the printf's in rt/lifetime.d (e.g.: https://github.com/D-Programming-Language/druntime/blob/e47a00bff935c3f079bb567a6ec97663ba384487/src/rt/lifetime.d#L1125) to see what happens if I/the GC delete an array. But I see no output, no matter what I try to allocate/deallocate.
What does to!someEnum(string) lower to? Comparing speed to someEnum[string] AA lookups
In my pet project I'm casting a lot of strings to named enum
members.
enum Animal { Gorilla, Shark, Alien, Rambo, Dolphin }
auto foo = Dolphin;
auto fooAsEnum = foo.to!Animal;
While micro-optimizing because it's fun, I see that it's much
faster (by some factor of 3.5x) to do such casts as associative
array lookups rather than by using std.conv.to as above. As in,
populate an Animal[string] array with all enum members indexed by
the strings of their names, allowing you to get the Animal you
want via animalAA[foo] or (foo in animalAA).
In comparison, what code is generated from the foo.to!Animal
cast? A big final switch? A long if-else-if-else chain?
http://dpaste.dzfl.pl/7e700a1053c0
(Can the compiler not generate such code instead?)
Re: What does to!someEnum(string) lower to? Comparing speed to someEnum[string] AA lookups
enum to string uses a switch if possible (src/phobos/std/conv.d
line 844)
I think the code that does string to enum is on line 2194, which
is a foreach { if {} } loop that never breaks; it always checks
all of them.
Re: Nobody understands templates?
On Friday, 28 February 2014 at 19:06:26 UTC, Dicebot wrote: On Friday, 28 February 2014 at 18:42:57 UTC, Steve Teale wrote: Is this typical - libraries use templates, applications don't, or am I just being unimaginative? Steve Also every time you catch yourself doing any sort of copy-paste, it is quite possible that it can be replaced by mixin / template mixin instead. Application that are built in more declarative way benefit more from such tool set than traditional imperative ones. In have a couple of case that always require me to find some other instance of it, and then copy/paste, But then I need to edit the pasted code anyway because in any particular case it needs to deal with different command info, so how can mixins help me? I have already dealt with the yada-yada cases by old-fashioned OOP. From the various answers to this question I have concluded that I should not worry about it. If there's a need for a template I think I am already recognizing it. Thanks!all() Steve
Re: How to return range constructs?
Hiho, @anonimous: Thank you for that hint with rdmd, I was already wondering what that was. @Mike Parker: Thank you very much for clearing that up for me. I really needed such a clear answer about this topic. So D language is highly advanced in meta programming and I should really begin to use it. =) Robin
Re: Template error on compiling ...
Hiho, thank you for your responses. This D language meta programming sounds funny and strange to someone who has never really worked with something like this but I understand its importance and will look more into working with it. =) Robin
Re: Colons and brackets
On 2014-02-28 7:53 AM, anonymous wrote: nope nope?
Re: Colons and brackets
On 2014-03-01 4:14 PM, Etienne wrote: On 2014-02-28 7:53 AM, anonymous wrote: nope nope? Can someone refute this anonymous nope?
Re: Colons and brackets
On Saturday, 1 March 2014 at 21:14:53 UTC, Etienne wrote: On 2014-02-28 7:53 AM, anonymous wrote: nope nope? yep ;) The nope was directed at this statement specifically: On Friday, 28 February 2014 at 04:31:03 UTC, evilrat wrote: add version(all): after code where specific version ends. I.e. version(all): doesn't cancel a former version(foo):. There may or may not be a way to cancel a version(foo):. I can't think of anything. Also, I don't see the problem with brackets.
Re: Nobody understands templates?
You probably don't have a good understanding of templates if you have only used 2 in your entire codebase. Or you are talking about a very tiny codebase. n Saturday, 1 March 2014 at 18:00:21 UTC, Steve Teale wrote: On Friday, 28 February 2014 at 19:06:26 UTC, Dicebot wrote: On Friday, 28 February 2014 at 18:42:57 UTC, Steve Teale wrote: Is this typical - libraries use templates, applications don't, or am I just being unimaginative? Steve Also every time you catch yourself doing any sort of copy-paste, it is quite possible that it can be replaced by mixin / template mixin instead. Application that are built in more declarative way benefit more from such tool set than traditional imperative ones. In have a couple of case that always require me to find some other instance of it, and then copy/paste, But then I need to edit the pasted code anyway because in any particular case it needs to deal with different command info, so how can mixins help me? I have already dealt with the yada-yada cases by old-fashioned OOP. From the various answers to this question I have concluded that I should not worry about it. If there's a need for a template I think I am already recognizing it. Thanks!all() Steve
Re: D tools build problem
On Tuesday, 11 February 2014 at 23:06:27 UTC, Joseph Rushton Wakeling wrote: With these flags in place, the following error message is produced: (../dmd/src/dmd -m64 -I../druntime/import -I../phobos -L-L../phobos/generated/linux/release/64 -w -v -ofgenerated/linux/64/dget generated/linux/64/dget.o 2/dev/null | grep '\-Xlinker' | cut -f2- -d' ' ; echo -lcurl ) | xargs gcc What are the actual gcc arguments? For me running ../dmd/src/dmd -m64 -I../druntime/import -I../phobos -L-L../phobos/generated/linux/release/64 -w -v -ofgenerated/linux/64/dget generated/linux/64/dget.o 2/dev/null | grep '\-Xlinker' prints gcc generated/linux/64/dget.o -o generated/linux/64/dget -m64 -L../phobos/generated/linux/release/64 -L/usr/lib64 -Xlinker --export-dynamic -l:libphobos2.a -lpthread -lm -lrt. Also check wheter the dget.o object has a D main. nm generated/linux/64/changed.o | grep _Dmain T _Dmain
Re: D tools build problem
On 02/03/14 00:07, Joseph Rushton Wakeling wrote: config/etc/dmd.conf This is interesting. My system doesn't have an /etc/dmd.conf file: I always place dmd.conf in the same directory as the dmd binary. Could it be that people not seeing my linker errors are doing so because the tools build is picking up on flags in an /etc/dmd.conf introduced with an earlier install?
Re: Colons and brackets
On Saturday, 1 March 2014 at 21:42:56 UTC, anonymous wrote: On Saturday, 1 March 2014 at 21:14:53 UTC, Etienne wrote: On 2014-02-28 7:53 AM, anonymous wrote: nope nope? yep ;) The nope was directed at this statement specifically: On Friday, 28 February 2014 at 04:31:03 UTC, evilrat wrote: add version(all): after code where specific version ends. I.e. version(all): doesn't cancel a former version(foo):. There may or may not be a way to cancel a version(foo):. I can't think of anything. Also, I don't see the problem with brackets. of course it doesn't cancel it. it just re-enables code after descending version operator. versions can only be enabled via compiler args or CTFE.
Re: Colons and brackets
On Sunday, 2 March 2014 at 05:23:21 UTC, evilrat wrote: On Saturday, 1 March 2014 at 21:42:56 UTC, anonymous wrote: On Saturday, 1 March 2014 at 21:14:53 UTC, Etienne wrote: On 2014-02-28 7:53 AM, anonymous wrote: nope nope? yep ;) The nope was directed at this statement specifically: On Friday, 28 February 2014 at 04:31:03 UTC, evilrat wrote: add version(all): after code where specific version ends. I.e. version(all): doesn't cancel a former version(foo):. There may or may not be a way to cancel a version(foo):. I can't think of anything. Also, I don't see the problem with brackets. of course it doesn't cancel it. it just re-enables code after descending version operator. versions can only be enabled via compiler args or CTFE. oh. sorry, i remembere i have same problems with version:, back then i switched to brackets.
Re: Nobody understands templates?
On Saturday, 1 March 2014 at 22:16:54 UTC, woh wrote: You probably don't have a good understanding of templates if you have only used 2 in your entire codebase. Or you are talking about a very tiny codebase. That's just what us template-blind people want to hear - confirmation that we are in fact stupid. The project I'm talking about is about 3 loc excluding blank lines and comments. What I'd like to see is a tool, or a switch on the compiler that emits the code generated by templates. We - the template-blind - would have it sussed in a heartbeat then. Steve
