jint | Javascript Interpreter for .NET | Interpreter library

 by   sebastienros C# Version: v3.0.0-beta-2049 License: BSD-2-Clause

kandi X-RAY | jint Summary

kandi X-RAY | jint Summary

jint is a C# library typically used in Utilities, Interpreter applications. jint has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Jint is a Javascript interpreter for .NET which can run on any modern .NET platform as it supports .NET Standard 2.0 and .NET 4.6.1 targets (and up). Because Jint neither generates any .NET bytecode nor uses the DLR it runs relatively small scripts really fast. You should prefer 3.x beta over the 2.x legacy version as all new features and improvements are targeted against version 3.x.
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            kandi-support Support

              jint has a medium active ecosystem.
              It has 3358 star(s) with 510 fork(s). There are 142 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 8 open issues and 635 have been closed. On average issues are closed in 240 days. There are 7 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of jint is v3.0.0-beta-2049

            kandi-Quality Quality

              jint has 0 bugs and 0 code smells.

            kandi-Security Security

              jint has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              jint code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              jint is licensed under the BSD-2-Clause License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              jint releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.

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            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of jint
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            jint Key Features

            No Key Features are available at this moment for jint.

            jint Examples and Code Snippets

            No Code Snippets are available at this moment for jint.

            Community Discussions

            QUESTION

            Pass js object to C# function
            Asked 2022-Apr-05 at 10:55

            I'm trying out Jint and want to implement the fetch api to use from js. The second argument is a nested js object that is passed in:

            ...

            ANSWER

            Answered 2022-Apr-05 at 10:55

            Some choices:

            • JsValue

              The object is passed as is.

              You can't use any other derived type because jint only checks JsValue. To use ObjectInstance, cast it on C# side.

            • dynamic

              This is the equivalent of ExpandoObject.

              Jint will convert an ObjectInstance to an ExpandoObject first if the parameter type is other than JsValue.

            • IDictionary or any other generic interface that ExpandoObject implemented

              Same as dynamic.

            • A custom type that the input object is able to convert to.

              You could define the object as class or struct, and define the entries as field or property. The name of the member can be capitalized. Notice that this way uses reflection, so it's not effcient.

              For instance, you can define it like this:

            Source https://stackoverflow.com/questions/71747794

            QUESTION

            Unity + ClearScript - Importing DLL
            Asked 2022-Mar-16 at 17:07

            I'm trying to use ClearScript in Unity, but fail because Unity does not see the DLL. To be sure, I cloned the project and had the DLLs built. I did this using the instructions from ClearScript.

            The goal is to use the DLL on HoloLens, which in turn means I have UWP as the platform and ARM64 as the architecture. But I also want to have valid references during the implementation in Unity and not have constantly grayed out code because of the scripting symbols (such as UNITY_WSA).

            So what did I do?

            1. Screenshot - I took the dlls out of the output-net4.5-folder and set the api compatibility level in unity to .NET 4.x. The red ones are the dlls that I need and the blue ones only if I realy need to use V8, like already mentioned by the instruction from ClearScript.
            2. All the dlls, except "..win-x64|86.dll", are managed dlls and should work out of the box in unity. So this are the import settings for the managed dlls and the settings for the unmanaged|native dlls.

            So what did I miss or what did I do wrong? I used in the past for example another javascript interpreter, called Jint, where I also just took the managed dll out of the .net-4.5-build folder, imported it under Assets/Plugins/Jint and used it in my code just by adding the using in my classes.

            ...

            ANSWER

            Answered 2022-Mar-16 at 17:07

            I'm not sure if I should actually be happy or sad. Unity does what it feels like doing. The whole time (2 days) it didn't want to load the DLL for me. Just now I opened Unity for the 30th time and suddenly Unity recognized the DLL and listed it under references in the vs-unity-project.

            So I doubted whether Unity, after making changes in Unity, actually reassembles the VS project.
            What did I do to confirm the guess and what do you need to do to solve the problem?
            I added a new DLL, this of course was not seen by unity and not referenced in the vs-unity-project. Then I deleted the solution file and the C# project file from the Unity project and restarted Unity. And when I reopened the VS Unity project (by opening a c# script), all the DLLs including the new DLL were suddenly referenced and the usings worked!

            Source https://stackoverflow.com/questions/71485085

            QUESTION

            How do I return a value from a C# function using jint?
            Asked 2022-Mar-15 at 20:44

            I'm currently using Jint (https://github.com/sebastienros/jint) to process JavaScript.

            I would like to be able to use a custom function in JavaScript that will execute a function created in C# and then return a value to the JavaScript.

            For example if the JavaScript was:

            ...

            ANSWER

            Answered 2022-Mar-15 at 16:08

            You can certainly reference a class, which can involve setting properties, and methods can return values. For example:

            Source https://stackoverflow.com/questions/71484948

            QUESTION

            GetMethodID of constructor of Java object
            Asked 2022-Mar-03 at 08:29

            I have a short question related to the GetMethodID() function of C++. I have been searching for the answer here on StackOverflow, but could not find it. My main code is in Java, but for some parts I would need C++. The code below is a simplification of what I intend to implement, to test out how to retrieve and pass objects between Java and C++. The final issue is presented at the end of this pos. First, I present the implementation.

            ...

            ANSWER

            Answered 2022-Mar-03 at 08:29

            thisObject is a ExampleJNI not a Order so GetObjectClass will return ExampleJNI which doesn't have the constructor you are looking for. Change GetObjectClass to env->FindClass("Order").

            Source https://stackoverflow.com/questions/71333649

            QUESTION

            POST request from Salesforce Marketing Cloud cloudpage to Twilio using SSJS
            Asked 2022-Feb-14 at 01:01

            I am trying to send a POST request to Twilio's SMS API from Marketing Cloud's cloudpage using SSJS. I am getting a 401 unauthorized access even though I have added ACCOUNT_SID AND AUTH_TOKEN in the URL.

            ...

            ANSWER

            Answered 2022-Feb-14 at 01:01

            Twilio developer evangelist here.

            I'm not familiar with SSJS and I'm finding it hard to connect the documentation(?) with what you've written. If this documentation refers to the same HTTP.Post method you are using then try something like this:

            Source https://stackoverflow.com/questions/71105937

            QUESTION

            ReleaseStringUTFChars with non-original jstring argument?
            Asked 2021-Dec-20 at 10:12

            In order to minimize JNI marshalling, I want to store some strings on the C++ side as static variables via a setup method, use them in a different JNI method call rather than passing them each time, and then release the strings later with yet another JNI method call. For example,

            C++ code:

            ...

            ANSWER

            Answered 2021-Dec-20 at 10:12

            Yes, the documentation states

            This array is valid until it is released by ReleaseStringUTFChars().

            This is corroborated by the implementation in Hotspot, which just allocates off-heap memory for a copy.

            Source https://stackoverflow.com/questions/70417048

            QUESTION

            JVMTI class not prepared
            Asked 2021-Dec-09 at 21:29

            I'm writing a native Java agent using JVMTI that goes over all the methods of all the loaded classes. Unfortunately many classes seem not yet prepared and therefore GetClassMethods returns JVMTI_ERROR_CLASS_NOT_PREPARED. I am registering a ClassPrepare event callback but that seem to be called only for very few classes. Simplified (minus all the error handling and deallocation) my code looks like this

            ...

            ANSWER

            Answered 2021-Dec-08 at 23:41

            This is a normal situation when some classes are loaded but not linked. You don't need to do anything to prepare classes manually - JVM does this automatically when needed. JVM Specification guarantees the classes is completely prepared before it is initialized. As soon as it happens, JVM TI ClassPrepare event is fired.

            So in order to get all available jmethodIDs you'll need:

            1. Iterate over all loaded classes, ignoring possible JVMTI_ERROR_CLASS_NOT_PREPARED.
            2. Set ClassPrepare event callback and call GetClassMethods in it.

            Source https://stackoverflow.com/questions/70235772

            QUESTION

            Structure Core Depth Camera Android App UnsatisfiedLinkError: cannot locate symbol "__sfp_handle_exceptions"
            Asked 2021-Nov-30 at 08:32

            I am trying to create an android application for the depth camera Structure Core. This product comes with an Android API but the problem is that the api documentation is very short and not very helpful. It has one prebuilt Android app in the form of an APK file, and sample project codes for Windows, Linux and Android. The problem is the sample Android project is very old. I managed to build it and install to a device, but the app does not launch with the error java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "__sfp_handle_exceptions". Therefore I tried to make a very simple application of mine from scratch, but in the end the same error keeps popping up (the application builds and installs successfully):

            ...

            ANSWER

            Answered 2021-Nov-30 at 08:32

            From a bit of searching it looks like __sfp_handle_exceptions is part of libstdc++ (from GCC), while modern Android NDKs ship with libc++ (Clang). Your best bet is to ask the vendor for a library compiled against libc++.

            If they cannot or will not provide such a thing, you could try stubbing the function or copying its implementation from here, but I do not know if the latter is allowed license-wise. Even so, no guarantees that you will end up with a working app.

            Source https://stackoverflow.com/questions/70166181

            QUESTION

            stack corruption detected when use memset in c++ from JNI Android
            Asked 2021-Nov-16 at 05:53

            I am developing an Android application using C++ native code.

            I have C++ code (XTTEA Algorithm in C++ native) which perfectly runs online with C++ compiler and I can get the output, but when I try to use that class method using JNI cpp class, it give me the error below:

            ...

            ANSWER

            Answered 2021-Nov-16 at 05:53

            Your input array is 8 bytes. The data parameter is a pointer to input, and the data_size parameter is 8, so theblock_size variable is calculated as 12. Your memset() is writing 4 0x00 bytes to &data[data_size], aka &input[8], which is out of bounds of the input array. So, you have a buffer overflow that is corrupting stack memory surrounding the input array.

            The subsequent for loop after the memset() is also accessing the input array's elements out of bounds, too.

            input is a fixed sized array. Accessing elements outside of its bounds does not make it grow larger.

            Source https://stackoverflow.com/questions/69984034

            QUESTION

            Full Native Implementation
            Asked 2021-Oct-24 at 21:00

            I am designing an application through JNI in order to prevent third party edits. I have moved forth towards registering native methods in order to remove jni bridge linkages, but as you can see, methods with override attribute still need to exist within the java code as native linked. Is there a way to fully port the remaining java code for this specific file?

            Java:

            ...

            ANSWER

            Answered 2021-Oct-24 at 21:00

            It does seem quite silly to think I can simply remove the native linkage between the activity and lib. Instead, I will be utilizing BaseDexClassLoader to sideload my dex file during runtime. I will not be giving up my code, but further information about this can be founded at: https://developer.android.com/reference/dalvik/system/BaseDexClassLoader

            Source https://stackoverflow.com/questions/69682525

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install jint

            You can download it from GitHub.

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