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How to upgrade applications to version 3.X

Andrey Taritsyn edited this page Oct 17, 2017 · 11 revisions

Breaking changes

Core

Now you can implement your own version of the JsEngineSwitcher class. To do this, you must create a class, that implements the IJsEngineSwitcher interface and assign an instance of this class to the Current property (this property should be used instead of the Instance property) of JsEngineSwitcher class:

JsEngineSwitcher.Current = new MyJsEngineSwitcher();

Because of appearance of this feature, you need to make changes in the source code of your applications: change the type of variables, parameters or properties from JsEngineSwitcher to IJsEngineSwitcher.

In IJsEngine interface was added SupportsScriptInterruption property and Interrupt method. Since not all JS engines support ability to interrupt execution of the script, then before calling of Interrupt method should always check the value of SupportsScriptInterruption property:

if (engine.SupportsScriptInterruption)
{
	engine.Interrupt();
}

After calling of the Interrupt method, execution of scripts ends with an error, therefore you should catch the JsScriptInterruptedException exception (or catch a more common exception - JsException).

ChakraCore

JavaScriptEngineSwitcher.ChakraCore.Native.debian-x64 package has been replaced by the JavaScriptEngineSwitcher.ChakraCore.Native.linux-x64 package.

ICU-57 library was embedded into the libChakraCore.so and libChakraCore.dylib assemblies (because of this, assemblies sizes is increased by 2,5 times).