Re: Accessing __FILE__ and __LINE__ of caller in combination with varargs?
On Saturday, 16 April 2016 at 00:03:59 UTC, Jonathan M Davis wrote: Yes, you can do that, but do _not_ do that unless you really have no other choice. What you need to realize is that because the file and line number arguments will be unique for every call to this function, it will generate a new instantiation of it _every_ time it is called. So, you're going to get a lot of code bloat. There are rare cases where such bloat would be acceptable, but in the general case, it's a terrible thing to do. This particular case might be acceptable given how short it is, but in general, using __FILE__ or __LINE__ as template arguments should be avoided like the plague. yeah I know that but there is really no other way in this case because of the varargs. Also because of the varargs the function will be different most of the time when always passing different arguments. There should be some "give me location of caller" keyword in D Also, to nitpick your exact implementation, debug blocks and assertions aren't even vaguely related. debug blocks are used with the -debug flag with the intention of being used for printing out additional debug information (and getting around restrictions with pure with those messages while you're at it). They have nothing to do with -release, which is what controls assertions. What you really want to be doing is to use version(assert), not debug. right, makes sense because there is a release with assertion flags.
Re: Dlang UI - making widget extend to the bounds of the window
On Friday, 15 April 2016 at 10:33:35 UTC, Vadim Lopatin wrote:
On Friday, 15 April 2016 at 00:58:58 UTC, stunaep wrote:
I'm trying to make a gui program with dlangui, but no matter
what I do, I cannot get widgets to fill the whole window. The
window is resizable so I cannot just set the widths to static
numbers.
No layoutWidth and layoutHeight set:
http://i.imgur.com/UySt30K.png
layoutWidth/Height set to fill (left widget width 300):
http://i.imgur.com/76tMIFz.png
I need these widgets to extend the width of the window because
it is resizable
http://i.imgur.com/PiL7Y7f.png
You can see this also on DlangUI ML editor:
fill:
http://i.imgur.com/t9DsASt.png
wrap:
http://i.imgur.com/FoTS69g.png
arbitrary number:
http://i.imgur.com/voiYTWZ.png
For parent VerticalLayout, set layoutWidth: fill too
VerticalLayout {
id: main;
layoutWidth: fill;
VerticalLayout {
layoutWidth: fill;
TextWidget { text: "test"; layoutWidth: fill }
}
}
I am doing that. I think it has to do with my high dpi because
I'm using a 4k monitor.
If I use Modal window flag:
Window window = Platform.instance.createWindow("DlangUI OpenGL
Example", null, WindowFlag.Modal, 800, 700);
http://i.imgur.com/FJgPq8U.png
If I use resizable:
Window window = Platform.instance.createWindow("DlangUI OpenGL
Example", null, WindowFlag.Resizable, 800, 700);
http://i.imgur.com/PsPwoSN.jpg
Re: Dlang UI - making widget extend to the bounds of the window
And no matter what window size I put when using Modal or Fullscreen, it always shows that same sized window
Re: Dlang UI - making widget extend to the bounds of the window
On Saturday, 16 April 2016 at 08:20:33 UTC, stunaep wrote:
On Friday, 15 April 2016 at 10:33:35 UTC, Vadim Lopatin wrote:
[...]
I am doing that. I think it has to do with my high dpi because
I'm using a 4k monitor.
If I use Modal window flag:
[...]
http://i.imgur.com/FJgPq8U.png
If I use resizable:
[...]
http://i.imgur.com/PsPwoSN.jpg
Actually, that is with the opengl area set to a specific size.
Here is using fill:
Window window = Platform.instance.createWindow("DlangUI OpenGL
Example", null, WindowFlag.Modal, 1250, 1250);
http://i.imgur.com/exAyjI0.png
Window window = Platform.instance.createWindow("DlangUI
OpenGL Example", null, WindowFlag.Resizable, 1250, 1250);
http://i.imgur.com/R7oxBa0.jpg
http://pastebin.com/qqbfQLvN
.opAssign disabled without @disable
Hi! DMD and LDC2 complain about disabled opAssign, but I am not used @disable and depend package "gfm" also isn't uses @disable. Steps to reproduce: git clone https://github.com/denizzzka/r-tree.git cd r-tree git checkout 803eed22 dub test Fetching gfm 6.0.0 (getting selected version)... Placing gfm 6.0.0 to /home/denizzz/.dub/packages/... Generating test runner configuration '__test__library__' for 'library' (sourceLibrary). Performing "unittest" build using dmd for x86_64. gfm:math 6.0.0: building configuration "library"... r-tree ~master: building configuration "__test__library__"... source/package.d(109,31): Error: function rtree.RAMNode!(Box!(int, 2), ubyte).RAMNode.opAssign is not callable because it is annotated with @disable source/package.d(110,26): Error: function rtree.RAMNode!(Box!(int, 2), ubyte).RAMNode.opAssign is not callable because it is annotated with @disable source/package.d(330,25): Error: template instance rtree.RTree!(RAMNode!(Box!(int, 2), ubyte), true) error instantiating dmd failed with exit code 1. If I am try to add opAssign to struct RAMNode manually it is compiles. (But there is enough postblit constructor.)
Re: Accessing __FILE__ and __LINE__ of caller in combination with varargs?
On Saturday, 16 April 2016 at 00:03:59 UTC, Jonathan M Davis
wrote:
On Friday, April 15, 2016 20:52:42 WebFreak001 via
Digitalmars-d-learn wrote:
void assertf(string file = __FILE__, size_t line = __LINE__,
Args...)(lazy bool condition, in string message, Args args) {
Yes, you can do that, but do _not_ do that unless you really
have no other choice. What you need to realize is that because
the file and line number arguments will be unique for every
call to this function, it will generate a new instantiation of
it _every_ time it is called. So, you're going to get a lot of
code bloat. There are rare cases where such bloat would be
acceptable, but in the general case, it's a terrible thing to
do. This particular case might be acceptable given how short it
is, but in general, using __FILE__ or __LINE__ as template
arguments should be avoided like the plague.
A few tricks to reduce this bloat:
- Write a small wrapper. This will still give bloat, but only of
small functions:
void assertf(string file = __FILE__, size_t line = __LINE__,
Args...)(lazy bool condition, in string message, Args args) {
assertfImpl(file, line, condition, message, args);
}
- Only care about line numbers in debug mode. Makes debug more
bloated, code less readable, and you lose out on line numbers in
release. Still worth it occasionally:
version (debug) {
void foo(string file = __FILE__, size_t line = __LINE__,
Args...)(Args args) {
// Stuffs.
}
} else {
void assertf(Args...)(Args args) {
// Stuffs.
}
}
I'd love to have a way to pass the file and line number info as
regular parameters, though. Something like:
void foo(Args...)(Args args, string file = __FILE__, int line =
__LINE__) {}
Sadly, currently not possible. Maybe we could overload @disable
for this purpose?
void foo(Args...)(Args args, @disable string file = __FILE__,
@disable int line = __LINE__) {}
--
Simen
Re: Why does Reggae use mixins?
On Friday, 15 April 2016 at 13:18:46 UTC, Nordlöw wrote: Why does the build system Reggae use mixins everywhere in the D examples? https://github.com/atilaneves/reggae Correction, it can do stuff either at CT or run-time as show here: https://github.com/atilaneves/reggae/blob/master/doc/basics.md Could somebody highlight when either is adviced?
Re: Why does Reggae use mixins?
On Saturday, 16 April 2016 at 13:04:24 UTC, Nordlöw wrote:
On Friday, 15 April 2016 at 13:18:46 UTC, Nordlöw wrote:
Why does the build system Reggae use mixins everywhere in the
D examples?
https://github.com/atilaneves/reggae
Correction, it can do stuff either at CT or run-time as show
here:
https://github.com/atilaneves/reggae/blob/master/doc/basics.md
Could somebody highlight when either is adviced?
Mixins are used so a D build description can be written at
module-scope, thereby looking like a scripting language. The only
reason this is important is to enable builds that have run-time
logic, which is pretty much all of the high-level rules (since
they have to read the file system).
the build template mixin doesn't have to be used, the only thing
reggae wants from a build description written in D is that there
be one and exactly one function with the signature:
Build func();
That's the function that gets called to generate the build. Since
I'm lazy I created a template mixin to write the function for me,
which again means that all definitions can be at module-scope.
Basically it's so that the file looks like:
alias exe = executable!(...);
mixin build!(exe);
Instead of:
Build myBuild() {
auto exe = executable(...);
return Build(exe);
}
Atila
Which application is much suited and which is not.
Let's say you have decided to use D programming language. For what kind of applications would you choose D programming language and For what kind of applications you won't choose D programming.
Re: .opAssign disabled without @disable
On Saturday, 16 April 2016 at 11:48:56 UTC, denizzzka wrote: source/package.d(109,31): Error: function rtree.RAMNode!(Box!(int, 2), ubyte).RAMNode.opAssign is not callable because it is annotated with @disable source/package.d(110,26): Error: function rtree.RAMNode!(Box!(int, 2), ubyte).RAMNode.opAssign is not callable because it is annotated with @disable source/package.d(330,25): Error: template instance rtree.RTree!(RAMNode!(Box!(int, 2), ubyte), true) error instantiating Perhaps I should explain that struct RAMNode placed in repository above. (And it isn't contains any @disable)
Re: .opAssign disabled without @disable
On Saturday, 16 April 2016 at 11:48:56 UTC, denizzzka wrote: Hi! DMD and LDC2 complain about disabled opAssign, but I am not used @disable and depend package "gfm" also isn't uses @disable. ... Try removing the const from this line: debug private const bool isLeafNode = false; I suspect that D is disabling whole-structure assignment since allowing it would mean that the constant `isLeafNode` could be changed.
Re: .opAssign disabled without @disable
On Saturday, 16 April 2016 at 15:15:18 UTC, Alex Parrill wrote: Try removing the const from this line: debug private const bool isLeafNode = false; I suspect that D is disabling whole-structure assignment since allowing it would mean that the constant `isLeafNode` could be changed. Tried - is no avail.
Re: Which application is much suited and which is not.
I use D for everything unless I cannot by some exterior constraint.
Re: Which application is much suited and which is not.
On Saturday, 16 April 2016 at 14:08:05 UTC, newB wrote: Let's say you have decided to use D programming language. For what kind of applications would you choose D programming language and For what kind of applications you won't choose D programming. I use D for pretty much everything. I use for a new website I'm working on using D and my own custom template engine for rendering websites similar to asp.net,'s mvc and razor. I use it for most applications I do, small or big. The only time I don't use D is when I'm at work since I work with a lot of already existing .net code but I'd never start a new project not written in D. The reason is pretty simply; D had everything that could ever need and things it lacks has never been things I couldn't do myself. By using D I have achieved and accomplished things much faster than any other languages that I use/used and it's been performing better too. I haven't had a reason not to use D yet.
Re: Which application is much suited and which is not.
On Saturday, 16 April 2016 at 14:08:05 UTC, newB wrote: Let's say you have decided to use D programming language. For what kind of applications would you choose D programming language and For what kind of applications you won't choose D programming. I would use D for web programming and for desktop applications, system programs. Though D website says, D can be used for scripting, I would never choose D for scripting. Programs that relies on a lot of system programs or that should call other shell scripts, I would write in bash.
Using -J with dub
Is there a way to achieve using -J through dub, preferable through dub.json I can't seem to find anything through the dub.json docs on how to pass regular dmd flags.
Re: Using -J with dub
On Saturday, 16 April 2016 at 20:57:10 UTC, Bauss wrote: Is there a way to achieve using -J through dub, preferable through dub.json I can't seem to find anything through the dub.json docs on how to pass regular dmd flags. For just -J option use stringImportPaths "". For other commands use the dflags option.
Re: Using -J with dub
On Saturday, 16 April 2016 at 23:46:58 UTC, Zekereth wrote: On Saturday, 16 April 2016 at 20:57:10 UTC, Bauss wrote: Is there a way to achieve using -J through dub, preferable through dub.json I can't seem to find anything through the dub.json docs on how to pass regular dmd flags. For just -J option use stringImportPaths "". For other commands use the dflags option. Thank you
Re: .opAssign disabled without @disable
Tried to build small test app - is not reproduced.
