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Some Java interop instructions are here: http://www.arclanguage.org/item?id=8819 http://www.arclanguage.org/item?id=8819 Arc runs on all platforms that MzSchem

Some Java interop instructions are here: http://www.arclanguage.org/item?id=8819 http://www.arclanguage.org/item?id=8819 Arc runs on all platforms that MzScheme runs on, which includes Windows.

herdrick 18y ago
Ah, so apparently PG didn't go with the unix integration he mentioned once. Your Java interop looks good, yet the code is a bit more verbose than the equivalent in Java. Also, can Arc lists and hashes be used as Java List and Map collections?
- conanite 18y ago
  rainbow converts arc lists and hashes to and from java List and Map equivalents. rainbow also uses 'defcall from anarki so you don't ever have to call java-invoke: you can put your java-object in functional position, followed by the method name, followed by the arguments. For example, (my-object 'hashCode) is the equivalent of java's myObject.hashCode(); ... essentially the same number of tokens. I expect to wrap the most popular java libraries behind arc-sounding macros/functions. rainbow comes with a tetris and a simple arc editor called welder, they both use java's Swing library, take a look if you'd like to see an example of this kind of wrapping. Or try http://www.fnargs.com/2009/01/calling-java-from-arc.html http://www.fnargs.com/2009/01/calling-java-from-arc.html I think "official arc" still assumes a unix for some functions ... I don't know what PG's final position on this is.
  - herdrick 18y ago
    Apologies for the days of delay - I'm on a reduced HN diet. So, in Clojure you can't use Java objects with the great sequence and hashmap libs: (def h (new java.util.HashMap)) (. h put :a 1) (. h put :b 2) user=> h #=(java.util.HashMap. {:b 2, :a 1}) Hashmaps in Clojure are, like Arc's, callable: user=> ({:a 1 :b 2} :b) 2 But not if they are Java Maps: user=> (h :b) java.lang.ClassCastException: java.util.HashMap (NO_SOURCE_FILE:0) So rainbow does the right thing - let's you use Arc functions on Java objects? By the way, Clojure's .. macro is pretty handy: (.. System (getProperties) (get "os.name")) expands to: (. (. System (getProperties)) (get "os.name"))

Some Java interop instructions are here: http://www.arclanguage.org/item?id=8819 http://www.arclanguage.org/item?id=8819 Arc runs on all platforms that MzScheme runs on, which includes Windows.

herdrick 18y ago

Ah, so apparently PG didn't go with the unix integration he mentioned once. Your Java interop looks good, yet the code is a bit more verbose than the equivalent in Java. Also, can Arc lists and hashes be used as Java List and Map collections?

conanite 18y ago
rainbow converts arc lists and hashes to and from java List and Map equivalents. rainbow also uses 'defcall from anarki so you don't ever have to call java-invoke: you can put your java-object in functional position, followed by the method name, followed by the arguments. For example, (my-object 'hashCode) is the equivalent of java's myObject.hashCode(); ... essentially the same number of tokens. I expect to wrap the most popular java libraries behind arc-sounding macros/functions. rainbow comes with a tetris and a simple arc editor called welder, they both use java's Swing library, take a look if you'd like to see an example of this kind of wrapping. Or try http://www.fnargs.com/2009/01/calling-java-from-arc.html http://www.fnargs.com/2009/01/calling-java-from-arc.html I think "official arc" still assumes a unix for some functions ... I don't know what PG's final position on this is.
- herdrick 18y ago
  Apologies for the days of delay - I'm on a reduced HN diet. So, in Clojure you can't use Java objects with the great sequence and hashmap libs: (def h (new java.util.HashMap)) (. h put :a 1) (. h put :b 2) user=> h #=(java.util.HashMap. {:b 2, :a 1}) Hashmaps in Clojure are, like Arc's, callable: user=> ({:a 1 :b 2} :b) 2 But not if they are Java Maps: user=> (h :b) java.lang.ClassCastException: java.util.HashMap (NO_SOURCE_FILE:0) So rainbow does the right thing - let's you use Arc functions on Java objects? By the way, Clojure's .. macro is pretty handy: (.. System (getProperties) (get "os.name")) expands to: (. (. System (getProperties)) (get "os.name"))