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(ns no-instrument.core
  (:require[om.core :as om :include-macros true]
           [om.dom :as dom :include-macros true]))

(enable-console-print!)

;; Instrumentation
;; ===============

(defn paint-component

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(ns ^:figwheel-always local-state.core
    (:require-macros [cljs.core.async.macros :refer [go]])
    (:require [om.core :as om :include-macros true]
              [om.dom :as dom :include-macros true]
              [cljs.core.async :refer [put! chan <!]]))

(enable-console-print!)

(defonce app-state (atom {}))

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(ns react-components.core
    (:require [reagent.core :as reagent :refer [atom]]))

(enable-console-print!)

(defonce app-state
  (atom {:text "Hello world!"
         :plain {:comment "and I can take props from the atom"}}))

(defn comment-box []

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(ns notes.core
  (:import goog.History
           goog.history.EventType)
  (:require [reagent.core :as reagent :refer [atom]]
            [secretary.core :as secretary]
            [reagent.session :as session]
            [reagent-forms.core :refer [bind-fields]]
            [ajax.core :refer [POST]]
            [goog.events])
  (:require-macros [secretary.core :refer [defroute]]))

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carlos@clojurescript: ./script/test-none
Analyzing file:/home/carlos/OpenSource/clojurescript/src/cljs/cljs/core.cljs
Compiling test/cljs/baz.cljs
WARNING: baz is a single segment namespace at line 1 test/cljs/baz.cljs
Compiling test/cljs/cljs/ns_test/bar.cljs
Compiling test/cljs/cljs/binding_test_other_ns.cljs
Compiling test/cljs/cljs/binding_test.cljs
Analyzing file:/home/carlos/OpenSource/clojurescript/src/cljs/cljs/test.cljs
Analyzing file:/home/carlos/OpenSource/clojurescript/src/cljs/clojure/string.cljs
Compiling test/cljs/cljs/keyword_other.cljs

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(ns cljs.core-test
  (:refer-clojure :exclude [iter])
  (:require [cljs.test :refer-macros [deftest testing is]]))

(deftest test-atoms-and-volatile
  (let [v (volatile! 1)]
    (testing "Testing volatile"
      (is (volatile? v))
      (is (not (volatile? (atom 1))))
      (is (= 2 (vreset! v 2)))

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The minimal error (below) disappears when test-919-generic-cas is deleted. It seems to be that the Protocol clashing comes when MyCustomAtom is used, not only defined. The error also disappears if `state` inside MyCustomAtom is changed to snail. Note that Volatile in cljs.core is also defined in terms of a state attribute.

Note that even though `compare-and-set!` calls `-deref` it raises no exceptions.

ERROR in (test-919-generic-cas) (Error:NaN:NaN)
testing CLJS-919, CAS should on custom atom types
expected: (== (clojure.core/deref a0) 20)
  actual: 
#<Error: No protocol method IDeref.-deref defined for type cljs.core-test/MyCustomAtom: [object Object]>

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var goog = goog || {};

goog.typeOf = function(value) {
  var s = typeof value;
  if (s == "object") {
    if (value) {
      if (value instanceof Array) {
        return "array";
      } else {
        if (value instanceof Object) {

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This Gist shows a potential bug in nashorn 1.8.0_40/1.8.0_45. It works properly in Java 9. It was logged with Review ID: JI-9020683.

After compiling a reduced version of core.cljs (the ClojureScript language) and a minimal test, 
V8 and Spidermonkey print 1 and 10 when the compiled script runs. Nashorn prints 1 and then throws 
the custom exception "Error: No protocol method IDeref defined for type :[object Object]"

The file compiled.js is a distilled version of the real compiled file that has the minimum code to 
fail. Any of the lines marked with // X solve the problem when deleted for 1.8.0_40. Deleting the
commented function solves the problem both for 1.8.0_40 and 1.8.0_45. Said function is not referenced
in the code at all.

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java.lang.IllegalStateException
	at com.google.common.base.Preconditions.checkState(Preconditions.java:158)
	at com.google.javascript.jscomp.CollapseProperties.rewriteAliasProps(CollapseProperties.java:266)
	at com.google.javascript.jscomp.CollapseProperties.inlineGlobalAliasIfPossible(CollapseProperties.java:239)
	at com.google.javascript.jscomp.CollapseProperties.inlineAliases(CollapseProperties.java:181)
	at com.google.javascript.jscomp.CollapseProperties.process(CollapseProperties.java:116)
	at com.google.javascript.jscomp.PhaseOptimizer$NamedPass.process(PhaseOptimizer.java:285)
	at com.google.javascript.jscomp.PhaseOptimizer.process(PhaseOptimizer.java:217)
	at com.google.javascript.jscomp.Compiler.optimize(Compiler.java:1972)
	at com.google.javascript.jscomp.Compiler.compileInternal(Compiler.java:765)