Hi all.
JP Moresmau писал 20.11.2012 13:01:
You may want to have a look at my little HJVM project on Github (
https://github.com/JPMoresmau/HJVM). Promise, I'll put in on Hackage
some
day. Basically it provides FFI wrappers and some c code to be able to
start
a JVM and call Java methods, etc
Hello,
I know nothing about compilers and interpreters. I checked several
books, but none of them explained why we have to translate a
high-level language into a small (core) language. Is it impossible
(very hard) to directly translate high-level language into machine
code?
Hey,
Here are some interesting links you that might help answer your question.
http://www.aosabook.org/en/ghc.html
http://www.youtube.com/watch?v=7NPBrWDzO2A
Regards,
José
On 11/20/2012 12:54 PM, c...@lavabit.com wrote:
Hello,
I know nothing about compilers and interpreters. I checked
Hi Johan.
I haven't looked in detail at the overall problem, but:
Flags chosen: base3=True, base4=True
Why is Cabal setting both base3 and base4 to True?
This looks completely fine to me.
The Cabal .cabal file is stating:
if flag(base4) { build-depends: base = 4 } else { build-depends:
They also have other comparisons at the referenced site, including for
different sizes of programs, and for counting characters or tokens instead of
lines over each of these program example groups.
The data source does include APL REBOL ( 483 different languages!), so one
could run this
Why C++ appears twice in the Overall rank?
2012/11/20 Gregory Guthrie guth...@mum.edu
There is some interesting data in the article at:
Code Length Measured in 14 Languages
http://blog.wolfram.com/2012/11/14/code-length-measured-in-14-languages/
basically comparing program lengths in
Thanks to all for the comparisons between apt cabal.
Your reply basically explains why it is broken, and gives a rationale (cost and
trouble to do it), but no prognosis for repair.
My interest is in using Haskell for teaching, and so far the package system
failures often present problems that
Le Tue, 20 Nov 2012 06:54:25 -0500 (EST),
c...@lavabit.com a écrit :
Hello,
I know nothing about compilers and interpreters. I checked several
books, but none of them explained why we have to translate a
high-level language into a small (core) language. Is it impossible
(very hard) to
Thanks to all for the comparisons between apt cabal.
Your reply basically explains why it is broken, and gives a rationale
(cost and trouble to do it), but no prognosis for repair.
It's an open problem.
I make do with disposable sand-boxes, using cabal-dev to build them. In
this way, I can
What would be the point in doing so?
Well, I don't know. Would it save some time? Why bother with a core language?
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Le Tue, 20 Nov 2012 10:49:01 -0500 (EST),
c...@lavabit.com a écrit :
What would be the point in doing so?
Well, I don't know. Would it save some time? Why bother with a core
language?
The compilation process might be slightly faster, but I guess it
wouldn't be much noticeable.
Also I
Hi,
Am Dienstag, den 20.11.2012, 06:54 -0500 schrieb c...@lavabit.com:
I know nothing about compilers and interpreters. I checked several
books, but none of them explained why we have to translate a
high-level language into a small (core) language. Is it impossible
(very hard) to directly
On 12-11-20 08:48 AM, Gregory Guthrie wrote:
It was also interesting to note a comment that most developers don't have access
to a Windows machine for testing. With Windows at 90% of the computing market
(Linux = 1.6%), this seems like a problem which might limit growth of Haskell
usage.
On Tue, Nov 20, 2012 at 6:54 AM, c...@lavabit.com wrote:
I know nothing about compilers and interpreters. I checked several
books, but none of them explained why we have to translate a
high-level language into a small (core) language. Is it impossible
(very hard) to directly translate
Is it impossible (very hard) to directly translate high-level language
into machine code?
There's a context to your question I don't understand, so let me ask:
Wouldn't it be easier to break a big step into smaller baby steps?
And if it's indeed easier why wouldn't you choose that route?
--
There has been, as Antony Courtney was using Java2D for vector
graphics called from Haskell in his Haven system.
The FFI was GCJNI (Green Card JNI) - I'm not sure where it exists now
or how much it has bit rotted.
On 20 November 2012 05:36, KC kc1...@gmail.com wrote:
Instead of Haskell running
On 12-11-20 06:54 AM, c...@lavabit.com wrote:
I know nothing about compilers and interpreters. I checked several
books, but none of them explained why we have to translate a
high-level language into a small (core) language. Is it impossible
(very hard) to directly translate high-level language
* It can also be easier to apply high level optimization techniques;
if you go straight from the highest level code to the lowest level,
you are likely to miss optimization opportunities that are only
revealed (or only sanely implementable) at intermediate levels.
Not to mention that since
The first NY Haskell Users Group meetup was a great success -- with
roughly sixty attendees and conversations that stretched far too late
for a weekday night. Video and slides are available for both the
Practical Data Processing and Cloud Haskell talks:
Video: http://vimeo.com/53906049
Slides on
I have
data Tweet = Tweet {
user :: String,
text :: String,
retweets :: Double
} deriving (Show)
data TweetSet = NoTweets | SomeTweets Tweet TweetSet TweetSet
and trying to create some generators for testing, with
instance Arbitrary Tweet where
arbitrary = liftM3 Tweet
Hmm,
Now when I tried to run Leksah, I get not only some broken packages (which I
can avoid for my current project), but:
command line: cannot satisfy -package-id
base-4.5.1.0-7c83b96f47f23db63c42a56351dcb917:
base-4.5.1.0-7c83b96f47f23db63c42a56351dcb917 is unusable due to missing or
On Tue, Nov 20, 2012 at 4:10 PM, Gregory Guthrie guth...@mum.edu wrote:
Hmm,
Now when I tried to run Leksah, I get not only some broken packages (which
I can avoid for my current project), but:
** **
command line: cannot satisfy -package-id
On 20/11/2012, at 4:55 PM, Gregory Guthrie wrote:
There is some interesting data in the article at:
Code Length Measured in 14 Languages
http://blog.wolfram.com/2012/11/14/code-length-measured-in-14-languages/
basically comparing program lengths in various languages, and some
No; the first sentence says that someone else had reported that testing on
Windows was hard to do because of (a perceived) lack of access to Windows by
Haskell developers... The implication is that Haskell developers (only/mainly)
use *nix.
I commented that if true this lack of Windows testing
On Tue, Nov 20, 2012 at 11:01 AM, Ilya Portnov port...@iportnov.ru wrote:
Please take a look at http://hackage.haskell.org/package/hs-java also. It's
an assembler/disassembler of Java bytecode and *.class files. Moreover,
there is https://github.com/MateVM/MateVM — an (experimental) Java VM on
On Tue, Nov 20, 2012 at 1:10 PM, Gregory Guthrie guth...@mum.edu wrote:
Hmm,
Now when I tried to run Leksah, I get not only some broken packages (which
I can avoid for my current project), but:
** **
command line: cannot satisfy -package-id
On 21/11/2012, at 4:49 AM, c...@lavabit.com wrote:
What would be the point in doing so?
Well, I don't know. Would it save some time? Why bother with a core language?
For a high level language (and for this purpose, even Fortran 66 counts as
high level) you really don't _want_ a direct
Hi Everyone,
I am trying to build a function to rewrite and AST. I have and AST which is
designed to represent a computation graph. I will present a simplified
version here designed to illustrate the problem. I have tried numerous ways
of rewriting it including uniplate, recursion and Edward
On 12-11-19 09:39 PM, Magicloud Magiclouds wrote:
And, the key point is that using upgrade-dependencies with
cabal-install. I am using git (current) version of cabal-install.
Without that argument, things could be fine. With it, it must fail.
Therefore, don't use upgrade-dependencies.
I have a dream of one day being able to install leksah without having
to downgrade ghc. Right now I can't even install cabal-dev with cabal.
It will break ghc if I do.
2012/11/20 Johan Tibell johan.tib...@gmail.com:
On Tue, Nov 20, 2012 at 1:10 PM, Gregory Guthrie guth...@mum.edu wrote:
Hmm,
On 12-11-20 05:37 PM, Gregory Guthrie wrote:
No; the first sentence says that someone else had reported that testing on
Windows was hard to do because of (a perceived) lack of access to Windows by
Haskell developers... The implication is that Haskell developers (only/mainly)
use *nix.
I
On Tue, Nov 20, 2012 at 5:14 PM, Albert Y. C. Lai tre...@vex.net wrote:
On 12-11-20 05:37 PM, Gregory Guthrie wrote:
No; the first sentence says that someone else had reported that testing
on Windows was hard to do because of (a perceived) lack of access to
Windows by Haskell developers...
Why not? Either way, I am chiming in as a programmer of many years. Unless
using osx I stick with windows to avoid half-day forays into nettling
technical issues that are not related to the work I am paid to perform. I
would love for Haskell to work better there.
On Nov 20, 2012 5:21 PM, Johan
On 12-11-20 08:20 PM, Johan Tibell wrote:
This logic is flawed. More than 90% of computers having Windows doesn't
imply that 90% of all computers in a given household runs Windows.
What's the probability that your household has a Windows computer if
you're a programmer that don't live with your
On Tue, Nov 20, 2012 at 5:34 PM, Albert Y. C. Lai tre...@vex.net wrote:
This counter-argument is flawed. Why limit oneself to one's own household?
(Garage? Basement?) Get out more! Visit a friend. Talk to an internet cafe
owner for a special deal to run one's own programs. Rent virtual machine
Albert Y. C. Lai wrote:
Clearly, since 90% of computers have Windows, it should be trivial to
find one to test on, if a programmer wants to. Surely every programmer
is surrounded by Windows-using family and friends? (Perhaps to the
programmer's dismay, too, because the perpetual I've got a
Albert Y. C. Lai wrote:
This counter-argument is flawed. Why limit oneself to one's own
household? (Garage? Basement?) Get out more! Visit a friend.
If that friend is not a coder, they are unlikely to have the dev tools
installed.
Talk to an
internet cafe owner for a special deal to run
+1 to this. The friction of finding, setting up, and using Windows isn't
even comparable to just sshing into another unix box and testing something
quickly.
As a university student, I also find it relatively rare that I get to test
on a Windows machine. My personal computer runs linux, my
If some person or group of people is willing to administer and maintain
windows build/testing boxes for the good of the Haskell community
(perhaps even just for core infrastructure and an extended set of
blessed libraries), I would be willing to contribute a decent sum to
the procurement of
Have you read Data types a la carte? The 'syntactic' package implements
the ideas, but it was a little dense for my purposes when I looked (I just
wanted data types, a la carte; it focuses on manipulating ASTs defined a la
carte). It might be what you need, or you can roll your own based on the
On 11/20/12 6:21 PM, Steve Severance wrote:
class (ReflectDescriptor a, Typeable a, Wire a) = ProtoBuf a
data Expression a b where
OpenTable :: (ProtoBuf b) = Int - Table - Expression () b
OpenFile :: (ProtoBuf b) = Int - String - Expression () b
WriteFile :: (Typeable a, ProtoBuf b) =
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