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Rhino JavaScript Java Library Source Code
Rhino JavaScript Java Library is an open-source implementation of JavaScript written entirely in Java.
Rhino JavaScript Java Library Source Code files are provided in binary package (rhino-1.7.14.zip).
You can also browse the source code below:
✍: FYIcenter.com
⏎ org/mozilla/javascript/UnhandledRejectionTracker.java
package org.mozilla.javascript; import java.util.ArrayList; import java.util.IdentityHashMap; import java.util.Iterator; import java.util.List; import java.util.function.Consumer; /** * This class is responsible for handling tracking of unhandled Promise rejections. These come up * when a Promise is either rejected or an exception is thrown and there is no "catch" handler set * up. There is one of these tracker objects for each Context class. * * <p>Different frameworks will choose different ways to handle unhandled rejections. As a result, * Rhino does nothing by default. * * <p>However, if "trackUnhandledPromiseRejections" is called on the Context object, then Rhino will * track them in this object. It is the responsibility of the product embedding Rhino to * periodically check for unhandled rejections in this class and either remove them or terminate the * script and allow the context and its tracker to be garbage- collected. * * <p>Note that if "trackUnhandledPromiseRejections" is set, and rejections are not handled, then * Promise objects will accumulate in this object and cause a memory leak. */ public class UnhandledRejectionTracker { private boolean enabled = false; private static final IdentityHashMap<NativePromise, NativePromise> unhandled = new IdentityHashMap<>(0); /** * Iterate through all the rejected promises that have not yet been handled. As each promise is * handled by this method, it is removed from this tracker and will not appear again. This is * useful for delivering unhandled promise notifications to users one time via a callback. */ public void process(Consumer<Object> handler) { Iterator<NativePromise> it = unhandled.values().iterator(); while (it.hasNext()) { try { handler.accept(it.next().getResult()); } finally { // Always remove even if handler throws it.remove(); } } } /** * Return a collection of all of the results of any unhandled rejected promises. This does not * remove unhandled promises from the collection, but reports the current state. It is useful * for command-line tools. * * @return a read-only collection of promise results. To clear them, call "process". */ public List<Object> enumerate() { ArrayList<Object> ret = new ArrayList<>(); for (NativePromise result : unhandled.values()) { ret.add(result.getResult()); } return ret; } void enable(boolean enabled) { this.enabled = enabled; } void promiseRejected(NativePromise p) { if (enabled) { unhandled.put(p, p); } } void promiseHandled(NativePromise p) { if (enabled) { unhandled.remove(p); } } }
⏎ org/mozilla/javascript/UnhandledRejectionTracker.java
Or download all of them as a single archive file:
File name: rhino-1.7.14-sources.jar File size: 1029165 bytes Release date: 2022-01-06 Download
⇒ Example code to Test rhino-runtime-1.7.14.jar
⇐ Download Rhino JavaScript Binary Package
2022-05-03, 35576👍, 1💬
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