javascriptcore

问题 How do you add a JS file to the home directory so that 's' does not return 'nil'. Thanks. func analyzeText(text: String) { let homeDir = NSHomeDirectory() var err: NSError? = NSError() let s = String(contentsOfFile: homeDir + "/text.js", encoding: NSUTF8StringEncoding, error: &err) println(s) var context = JSContext(virtualMachine: JSVirtualMachine()) context.evaluateScript(s) let analyzeText = context.objectForKeyedSubscript("analyzeText") let analyzeTextVal = analyzeText.callWithArguments(

问题 Is there any way to force iOS (or Mac OS) JavaScriptCore VM garbage collector to run? I need it only to test for memory leaks, so private API would be fine. 回答1: Use following function from JSBase.h: /*! @function JSGarbageCollect @abstract Performs a JavaScript garbage collection. @param ctx The execution context to use. @discussion JavaScript values that are on the machine stack, in a register, protected by JSValueProtect, set as the global object of an execution context, or reachable from

问题 Is there any way to force iOS (or Mac OS) JavaScriptCore VM garbage collector to run? I need it only to test for memory leaks, so private API would be fine. 回答1: Use following function from JSBase.h: /*! @function JSGarbageCollect @abstract Performs a JavaScript garbage collection. @param ctx The execution context to use. @discussion JavaScript values that are on the machine stack, in a register, protected by JSValueProtect, set as the global object of an execution context, or reachable from

问题 I am working on a Mac app that uses a JSContext for some functionality. It uses a call like this (where ctx is a JSContext ): let result: JSValue? = ctx.evaluateScript("someFunction")?.call(withArguments: [someArg1!, someArg2]) Inside the someFunction script, we need to parse a directory and determine whether it exists on the filesystem. Apple's JavaScriptCore API does not have filesystem access as far as I can tell. Is there some way I can have a function like this in swift: public static

问题 I am working on a Mac app that uses a JSContext for some functionality. It uses a call like this (where ctx is a JSContext ): let result: JSValue? = ctx.evaluateScript("someFunction")?.call(withArguments: [someArg1!, someArg2]) Inside the someFunction script, we need to parse a directory and determine whether it exists on the filesystem. Apple's JavaScriptCore API does not have filesystem access as far as I can tell. Is there some way I can have a function like this in swift: public static

问题 I am working on a Mac app that uses a JSContext for some functionality. It uses a call like this (where ctx is a JSContext ): let result: JSValue? = ctx.evaluateScript("someFunction")?.call(withArguments: [someArg1!, someArg2]) Inside the someFunction script, we need to parse a directory and determine whether it exists on the filesystem. Apple's JavaScriptCore API does not have filesystem access as far as I can tell. Is there some way I can have a function like this in swift: public static

问题 The bounty expires in 4 days . Answers to this question are eligible for a +50 reputation bounty. Suge wants to draw more attention to this question. Sometime the script being evaluated should be stopped by force, but I can't find a way to achieve this. Someone pointed out JSContextGroupSetExecutionTimeLimit might work, but It doesn't in my testing, can anyone help? Another reference: https://github.com/phoboslab/JavaScriptCore-iOS/issues/14 My code: int extendTerminateCallbackCalled = 0;

问题 I'm trying to use Swift's JavaScriptCore framework to take advantage of an existing JavaScript library that uses ES6 modules. Specifically, morse-pro by Stephen C Phillips. I've added the files to an Xcode playground, then used this code to load the library and run it in the JavaScript context: import JavaScriptCore var jsContext = JSContext() // set up exception handler for javascript errors jsContext?.exceptionHandler = { context, exception in if let exc = exception { print("JS Exception:",

问题 I'm trying to use Swift's JavaScriptCore framework to take advantage of an existing JavaScript library that uses ES6 modules. Specifically, morse-pro by Stephen C Phillips. I've added the files to an Xcode playground, then used this code to load the library and run it in the JavaScript context: import JavaScriptCore var jsContext = JSContext() // set up exception handler for javascript errors jsContext?.exceptionHandler = { context, exception in if let exc = exception { print("JS Exception:",

问题 Is it possible to list / return in an array all javascript functions in my own .js file that begin with the string "_func"? Done in WebKit's JSCore. Basically, if my file has a bunch of functions, how do I enumerate those functions? 回答1: You can loop through the members of the window object and test them: var functions = []; for( var x in window) { if(typeof window[x] === "function" && x.indexOf("_func") === 0) { functions.push(x); } } 回答2: You can do it by iterating over the members of the