ragnard

Arity and dispatch

• functions have a single, known arity

Given a function f, with arity 3 (lambda (a b c) ...), application can be performed in three ways:

partial application: (f 1)

• return curried function with arity 2

exact application: (f 1 2 3)

ragnard

$ time ./truffleshen '(+ 1 2)'
Loading toplevel.kl
Loading core.kl
Loading sys.kl
Loading sequent.kl
Loading yacc.kl
Loading reader.kl
Loading prolog.kl
Loading track.kl
Loading load.kl

ragnard

[20:39:21][ragnardahlen@STOLTM3227:~/projects/github/graalvm/graal-core]
$ mx build
Compiling com.oracle.mxtool.compilerserver with javac... [/Users/ragnardahlen/projects/github/graalvm/mx/mxbuild/java/com.oracle.mxtool.compilerserver/bin/com/oracle/mxtool/compilerserver/CompilerDaemon.class does not exist]
warning: [options] bootstrap class path not set in conjunction with -source 1.7
1 warning
Compiling com.oracle.truffle.api.source with javac-daemon... [/Users/ragnardahlen/projects/github/graalvm/truffle/mxbuild/truffle/com.oracle.truffle.api.source/bin/com/oracle/truffle/api/source/Content.class does not exist]
Compiling org.graalvm.compiler.nodeinfo with javac-daemon... [/Users/ragnardahlen/projects/github/graalvm/graal-core/mxbuild/graal/org.graalvm.compiler.nodeinfo/bin/org/graalvm/compiler/nodeinfo/InputType.class does not exist]
Compiling org.graalvm.util with javac-daemon... [/Users/ragnardahlen/projects/github/graalvm/graal-core/mxbuild/graal/org.graalvm.util/bin/org/graalvm/util/EconomicMap.class 

ragnard

11:22:29.363557 open("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC) = 30 <0.000029>
11:22:29.363613 ioctl(30, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig -icanon -echo ...}) = 0 <0.000021>
11:22:29.363664 writev(30, [{"[71658.329457] ", 15}, {"docker", 6}, {"[804]: ", 7}, {"{\"@timestamp\":\"2016-03-08T11:22:29.361+00:00\",\"@version\":1,\"logger_name\":\"nocrm-bigquery-transform.core\",\"thread_name\":\"main\",\"level_name\":\"INFO\",\"message\":\"inserted batch with 1000 rows\"}", 188}, {"\n", 1}], 5) = 217 <0.003830>
11:22:29.367539 close(30)               = 0 <0.000021>

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# additions

def resource_names
  ret = []
  for type in @output["resource"].keys
    for id in @output["resource"][type].keys
      ret << "#{type}.#{id}"
    end
  end
  ret

ragnard

\d+ clickouts
                                   Table "public.clickouts"
   Column   |            Type             | Modifiers | Storage  | Stats target | Description 
------------+-----------------------------+-----------+----------+--------------+-------------
 click_ref  | character varying(36)       | not null  | extended |              | 
 click_date | timestamp without time zone | not null  | plain    |              | 
 deal_id    | character varying(40)       | not null  | extended |              | 
 raw_data   | jsonb                       | not null  | extended |              | 
 user_agent | jsonb                       |           | extended |              | 
Indexes:

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.classpath: project.clj
	lein classpath \
	| tr ':' '\n' \
	| sed '/\.jar/!d' \
	> .classpath

repl: .classpath
	@java -cp $(shell cat .classpath | tr '\n' ':') clojure.main -i nrepl.clj -r
.PHONY: repl

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(require '[clj-kafka.core :refer [with-resource]]
         '[clj-kafka.consumer.zk :as kafka.consumer])

(defn deserialize-message
  [message]
  message)

(defn production-traffic?
  [event]
  true)

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/var/log/upstart/*.log {
        daily
        missingok
        rotate 7
        compress
        notifempty
	nocreate
}

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// write literal true
ByteArrayOutputStream bs1 = new ByteArrayOutputStream();
(new ObjectOutputStream(bs1)).writeObject(true);

// write Boolean.TRUE
ByteArrayOutputStream bs2 = new ByteArrayOutputStream();
(new ObjectOutputStream(bs2)).writeObject(Boolean.TRUE);

// did we write same bytes? yes.
System.out.println(Arrays.equals(bs1.toByteArray(), bs2.toByteArray())); // true