language-interoperability

Resolving Swift.h and Bridging-Header.h circular references involving enums

ぐ巨炮叔叔 提交于 2019-12-08 08:43:02
问题 I have an Objective-C header that has to be used by a Swift class. However, this header has to use the Swift.h file for an enum declared in a Swift file. In other words, the setup is as follows: MPViewController.h #import "MyProject-Swift.h" @interface MPViewController: UIViewController @property (nonatomic, assign) MPSomeEnum theEnum; ... @end MyProject-Bridging-Header.h ... #import "MPViewController.h" ... SomeEnum.swift @objc enum MPSomeEnum: Int { ... } When compiling the code, I get

C and Go interoperability issue involving C.free()

北战南征 提交于 2019-12-05 01:59:34
I've a Go function that wraps the proc_name(pid,...) function from lib_proc.h . This is the complete C prototype : int proc_name(int pid, void * buffer, uint32_t buffersize) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); that can be found here /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/include/libproc.h (at least on my system). It follows Go code: package goproc /* #include "libproc.h" int call_proc_name(int pid, char *name, int name_size) { return proc_name(pid, name, name_size); } */ import "C" import "unsafe" import "strings"

How to convert from from java.util.Map to a Scala Map

跟風遠走 提交于 2019-12-04 10:17:44
问题 A Java API returns a java.util.Map<java.lang.String,java.lang.Boolean> ;. I would like to put that into a Map[String,Boolean] So imagine we have: var scalaMap : Map[String,Boolean] = Map.empty val javaMap = new JavaClass().map() // Returns java.util.Map<java.lang.String,java.lang.Boolean> You can't do Map.empty ++ javaMap , because the ++ method does not know about Java maps. I tried: scalaMap = Map.empty ++ new collection.jcl.MapWrapper[String,Boolean] { override def underlying = javaMap }

haskell scala interoperability

百般思念 提交于 2019-12-04 08:24:49
I am a Scala beginner and coming from Object Oriented Paradigm. While understanding Functional programming part of Scala, I was directed to Haskell - the pure Functional programming language. Exploring SO question-answers, I found that Java - Haskell has interoperability. I am curious to know that similarly does Scala-Haskell interoperability exist or not? Can a function library written in Haskell be used in Scala application? As per answer given by Don Stewart: It is possible. Integration of Haskell Function Library in Scala application will be straight and easy or will require complicated

Use Python alongside C# in Windows UWP app

怎甘沉沦 提交于 2019-12-04 07:35:15
I started writing an application in Python, but I now want to switch to C# and UWP. I know that you cannot write a UWP app in Python, but I am trying to see if I can write some code in Python and access that code from C#. For example, writing a class in Python that C# code can access as well. Is that possible? And if so, can Python access Microsoft's UWP APIs? The main code will not be written in Python; that would be impossible. But can interoperability between C# and Python exist, perhaps with IronPython (.NET's Python)? And how would I set up such a Visual Studio project? I have Python

Is it possible to call a C++ function from JavaScript in a QWebView?

痴心易碎 提交于 2019-12-03 16:29:27
问题 I have a web page loaded in a QWebView. In there, I would like to have JavaScript call a function of my application. That function would then returns some strings that JavaScript would dynamically display. Can it be done using QWebView? Basically, is it possible to have some bridge between the application (in C++) and the QWebView control? 回答1: This is how I ended up doing it. I declared a "JavaScriptBridge" class in my header file with a Q_INVOKABLE method. Q_INVOKABLE methods can be called

Is it possible to call a C++ function from JavaScript in a QWebView?

别等时光非礼了梦想. 提交于 2019-12-03 05:38:44
I have a web page loaded in a QWebView. In there, I would like to have JavaScript call a function of my application. That function would then returns some strings that JavaScript would dynamically display. Can it be done using QWebView? Basically, is it possible to have some bridge between the application (in C++) and the QWebView control? This is how I ended up doing it. I declared a "JavaScriptBridge" class in my header file with a Q_INVOKABLE method. Q_INVOKABLE methods can be called from JavaScript: class DictionaryJavaScriptBridge : public QObject { Q_OBJECT public:

How to convert from from java.util.Map to a Scala Map

雨燕双飞 提交于 2019-12-03 05:26:59
A Java API returns a java.util.Map<java.lang.String,java.lang.Boolean> ;. I would like to put that into a Map[String,Boolean] So imagine we have: var scalaMap : Map[String,Boolean] = Map.empty val javaMap = new JavaClass().map() // Returns java.util.Map<java.lang.String,java.lang.Boolean> You can't do Map.empty ++ javaMap , because the ++ method does not know about Java maps. I tried: scalaMap = Map.empty ++ new collection.jcl.MapWrapper[String,Boolean] { override def underlying = javaMap } and: scalaMap = Map.empty ++ new collection.jcl.MapWrapper[java.lang.String,java.lang.Boolean] {

Matlab Builder JA - Compile Matlab into a Java jar - Free Version?

笑着哭i 提交于 2019-12-02 15:03:34
问题 Please keep in mind that I know nothing about Matlab. Matlab Builder JA lets developer build Matlab applications and export them into Java jars. That's great, I just have to produce a jar and I can then use it from other java code. Does anyone know how much the single jar packaging module cost? Is there any free version or similar freeware product? Is there any other way to achieve the same thing -Using Java to pass inputs to Matlab and getting an output back without worrying about anything

Matlab Builder JA - Compile Matlab into a Java jar - Free Version?

冷暖自知 提交于 2019-12-02 09:10:27
Please keep in mind that I know nothing about Matlab. Matlab Builder JA lets developer build Matlab applications and export them into Java jars. That's great, I just have to produce a jar and I can then use it from other java code. Does anyone know how much the single jar packaging module cost? Is there any free version or similar freeware product? Is there any other way to achieve the same thing -Using Java to pass inputs to Matlab and getting an output back without worrying about anything else- with standard Matlab/Java? The Matlab JA Builder (also referred to as the Matlab JA Compiler) runs