Is anyone else getting the following error with 1.7.0 when running lein
repl? All I did was change from 1.6.0 to 1.7.0.
#error {
:cause Wrong number of args (2) passed to: StringReader
:via
[{:type clojure.lang.Compiler$CompilerException
:message clojure.lang.ArityException: Wrong number of args (2) passed
to: StringReader, compiling:(abnf.clj:189:28)
:at [clojure.lang.Compiler$InvokeExpr eval Compiler.java 3628]}
{:type clojure.lang.ArityException
:message Wrong number of args (2) passed to: StringReader
:at [clojure.lang.AFn throwArity AFn.java 429]}]
Thanks,
Robert
On Tuesday, 30 June 2015 07:35:34 UTC-7, Alex Miller wrote:
>
> We are pleased to announce the release of Clojure 1.7.
>
> - Download: https://repo1.maven.org/maven2/org/clojure/clojure/1.7.0/
> - Leiningen: [org.clojure/clojure "1.7.0"]
>
> The two headline features for 1.7 are transducers and reader conditionals.
> Also see the complete list (
> https://github.com/clojure/clojure/blob/master/changes.md) of all changes
> since Clojure 1.6 for more details.
>
> ## Transducers
>
> Transducers (http://clojure.org/transducers) are composable algorithmic
> transformations. They are independent from the context of their input and
> output sources and specify only the essence of the transformation in terms
> of an individual element. Because transducers are decoupled from input or
> output sources, they can be used in many different processes - collections,
> streams, channels, observables, etc. Transducers compose directly, without
> awareness of input or creation of intermediate aggregates.
>
> Many existing sequence functions now have a new arity (one fewer argument
> than before). This arity will return a transducer that represents the same
> logic but is independent of lazy sequence processing. Functions included
> are: map, mapcat, filter, remove, take, take-while, drop, drop-while,
> take-nth, replace, partition-by, partition-all, keep, keep-indexed,
> map-indexed, distinct, and interpose. Additionally some new transducer
> functions have been added: cat, dedupe, and random-sample.
>
> Transducers can be used in several new or existing contexts:
>
> * into - to collect the results of applying a transducer
> * sequence - to incrementally compute the result of a transducer
> * transduce - to immediately compute the result of a transducer
> * eduction - to delay computation and recompute each time
> * core.async - to apply a transducer while values traverse a channel
>
> ## Portable Clojure and Reader Conditionals
>
> It is now common to see a library or application targeting multiple
> Clojure platforms with a single codebase. Clojure 1.7 introduces a new
> extension (.cljc) for files that can be loaded by Clojure and ClojureScript
> (and other Clojure platforms).
>
> There will often be some parts of the code that vary between platforms.
> The primary mechanism for dealing with platform-specific code is to isolate
> that code into a minimal set of namespaces and then provide
> platform-specific versions (.clj/.class or .cljs) of those namespaces.
>
> To support cases where is not feasible to isolate the varying parts of the
> code, or where the code is mostly portable with only small
> platform-specific parts, 1.7 provides Reader Conditionals (
> http://clojure.org/reader#The%20Reader--Reader%20Conditionals).
>
> Reader conditionals are a new reader form that is only allowed in portable
> cljc files. A reader conditional expression is similar to a cond in that it
> specifies alternating platform identifiers and expressions. Each platform
> is checked in turn until a match is found and the expression is read. All
> expressions not selected are read but skipped. A final :default fallthrough
> can be provided. If no expressions are matched, the reader conditional will
> read nothing. The reader conditional splicing form takes a sequential
> expression and splices the result into the surrounding code.
>
> ## Contributors
>
> Thanks to all of those who contributed patches to Clojure 1.7:
>
> Timothy Baldridge
> Bozhidar Batsov
> Brandon Bloom
> Michael Blume
> Ambrose Bonnaire-Sergeant
> Aaron Cohen
> Pepijn de Vos
> Andy Fingerhut
> Gary Fredricks
> Daniel Solano Gómez
> Stuart Halloway
> Immo Heikkinen
> Andrei Kleschinsky
> Howard Lewis Ship
> Alex Miller
> Steve Miner
> Nicola Mometto
> Tomasz Nurkiewicz
> Ghadi Shayban
> Paul Stadig
> Zach Tellman
> Luke VanderHart
> Jozef Wagner
> Devin Walters
> Jason Wolfe
> Steven Yi
>
> Also, continued thanks to the total list of contributors from all releases:
> http://clojure.org/contributing#patches
>
>
> Thanks!
> Alex Miller
>
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