jint | Javascript Interpreter for .NET | Interpreter library
kandi X-RAY | jint Summary
kandi X-RAY | jint Summary
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.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of jint
jint Key Features
jint Examples and Code Snippets
Community Discussions
Trending Discussions on jint
QUESTION
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 10:55Some choices:
JsValue
The object is passed as is.
You can't use any other derived type because jint only checks
JsValue
. To useObjectInstance
, cast it on C# side.dynamic
This is the equivalent of
ExpandoObject
.Jint will convert an
ObjectInstance
to anExpandoObject
first if the parameter type is other thanJsValue
.IDictionary
or any other generic interface thatExpandoObject
implementedSame 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:
QUESTION
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?
- 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.
- 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 17:07I'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!
QUESTION
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 16:08You can certainly reference a class, which can involve setting properties, and methods can return values. For example:
QUESTION
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 08:29thisObject
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")
.
QUESTION
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 01:01Twilio 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:
QUESTION
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 10:12Yes, 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.
QUESTION
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 23:41This 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 jmethodID
s you'll need:
- Iterate over all loaded classes, ignoring possible
JVMTI_ERROR_CLASS_NOT_PREPARED
. - Set
ClassPrepare
event callback and callGetClassMethods
in it.
QUESTION
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 08:32From 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.
QUESTION
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 05:53Your 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.
QUESTION
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 21:00It 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
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install jint
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page