Logan's point about being able to add new functions on a stopwatch is
valid. That's often the argument to why protocols are better then classic
OO. Though I still feel like in some scenarios, I think this is a good
pattern, and can serve us better, the stopwatch being one good example.
Nothing
Not sure how to exclude an imported Java class?
lein deps :tree
Possibly confusing dependencies found:
[lein-checkall "0.1.1"] -> [jonase/eastwood "0.0.2"] ->
[org.clojure/tools.namespace "0.1.2"]
overrides
[lein-checkall "0.1.1"] -> [lein-kibit "0.0.8"] -> [jonase/kibit "0.0.8"]
->
I've never worked much with Java, so dealing with stuff like Maven is the
stuff I understand least about Clojure.
I've added these 3 items to the dependencies that I list in project.clj
[org.apache.poi/poi "3.9"]
[org.apache.poi/poi-ooxml
I seem to get around this by increasing:
:jvm-opts ["-Xms300m" "-Xmx300m" "-XX:-UseCompressedOops"])
Is that possible? I didn't realize that effected "lein uberjar" I thought
it only effected my app when my app was running.
On Saturday, December 10, 2016 at 11:37:44 PM UTC-5, larry
I had a small app that was compelling, and then I added in a java class,
and now when I run "lein uberjar" I get java.lang.OutOfMemoryError.
I'm working on my MacBook Pro, 16 gigs of memory
Dependencies were:
:dependencies [
[org.clojure/clojure "1.7.0"]
You don't need mutability to represent a stopwatch.
(defn start [stopwatch]
(assoc stopwatch ::start-time (System/currentTimeMillis)))
(defn elapsed-since-started [stopwatch]
(- (System/currentTimeMillis) (::start-time stopwatch)))
(defn stop [stopwatch]
(-> stopwatch
Don't know what you mean about "swapping", but here's a solution that
generalizes to a tree of any finite depth, where each node is either a leaf
element or a seqable (say, a vector) of any length:
(defn coord-of
([elems target]
(coord-of elems target []))
([elems target indexes]
I feel like you would be better off separating functions from the data they
operate on here. In this case, you could represent the state of a stopwatch
with a map containing the start time and the time elapsed, and have
functions `stop`, `reset`, `start`, etc that take the stopwatch data
I would certainly welcome and use an `overinstrument` function if added to
schpec (or another library).
One reason spec is great because it provides "a la carte" validation: a can
add an appropriate amount of validation to the parts of my code that would
most benefit from it. In my experience
I just released the first official version of Odin (
https://github.com/halgari/odin). Odin is a declarative, extensible query
DSL for Clojure that leverages transducers to provide a high amount of
generality while still maintaining acceptable performance.
One of the biggest features of Odin is
This is exactly my use case as well. I want to provide the user a nice DSL
but make it easy to automatically generate input. The idea I had was the
user could write things in the DSL and for automatic generation you could
just generate the conformed structure.
The other thing it's made me
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