JavaScriptCore Project Files for iOS

Thank you Dominic!!! It works! 2 observations:

1) Typo: shouldn't libstc++.dylib be libstdc++.dylib?

2) I had to change all the import directives in the header files like so:

#import <JavaScriptCore/JavaScriptCore.h>
becomes
#import "JavaScriptCore.h"

Is there some build setting that will make this unnecessary?

Thanks again!

#2: Dominic – Sunday, June 19th 2011, 16:18

1) Yep, thank you. Fixed it.
2) Mh, you shouldn't need to do this. Try adding ${SOURCE_ROOT} to your projects Header Search Paths

#3: Hackerzlife – Monday, June 20th 2011, 22:33

Yes, It actually works. With this sort of simple code.
Great to see Javascript being able to be used in Appstore compatible form && semi-native. :)

- (void)drawRect:(CGRect)rect {
	JSGlobalContextRef ctx = JSGlobalContextCreate(NULL);
	//pass a javascript code
	JSStringRef scriptJS = JSStringCreateWithUTF8CString("return (\"Current time = \" + (new Date()));");
	JSObjectRef fn = JSObjectMakeFunction(ctx, NULL, 0, NULL, scriptJS, NULL, 1, NULL);
	JSValueRef result = JSObjectCallAsFunction(ctx, fn, NULL, 0, NULL, NULL);
	
	JSStringRef     jstrArg = JSValueToStringCopy(ctx, result, NULL);
	
	NSString* hello   =  (NSString*)JSStringCopyCFString(kCFAllocatorDefault, jstrArg);  
	
    JSStringRelease(jstrArg);
	JSStringRelease(scriptJS);
	
	CGPoint location = CGPointMake(10, 20);
	UIFont	*font	= [UIFont systemFontOfSize:24];
	[[UIColor whiteColor] set];
	[hello drawAtPoint:location withFont:font];
}

#4: Gustav – Tuesday, June 21st 2011, 20:34

Hi Dominic!... i really hope you keep rolling well on the industry... i played Z-type and have seen some videos about your platform-game (one of the first ones testing your impact's power).

But now going to the main thing. I came mostly because i thought you could feel like supporting this Handheld idea dedicated to indie development. the-nd.com/ this is just starting to rush from the the botton of obscurity, to the top of the enlightment.

Many Amateur developers have just paid some attention to it and show some possible project that they could made in the near future to encourage some investors. I was hoping that maybe you or some of your readers could feel attracted by the idea and get motivated to post some of her projects (new ones or old ones who could be ported) to just make this handheld itiative more solid to the public eye.

I hope i don't disrespect you or your readers by using this a medium for some sort of spam. See ya then! and i hope the best for your projects!

Many thanks Dominic!

This is fantastic, thank you so much for sharing your work!

The project works perfect in Xcode 4, just make a small change to Header Search Paths & Library Search Paths, change:
${SOURCE_ROOT}

for:
"$(SRCROOT)/"

and #import <JavaScriptCore/JavaScriptCore.h> will work

Any plans to write anything for Honeycomb / Ice cream sandwich?

Fantastic, thank you!

One small question, this download contains files ./parser/Grammar.h and ./parser/Grammar.cpp which don't appear in the current nightly build (or older, I tried 534.15). Any idea why they are appearing/necessary?

Thanks again for this making this public!

#10: FRIV – Wednesday, August 31st 2011, 05:51

#import <JavaScriptCore/JavaScriptCore.h>
unnecessary?

Hey I'm trying to use this library in my project but I realized you can only compile this with armv7? Is this what is expected? Or do you have a armv6/7 compatible binary that I could use? Thanks!

Disregard that. I took a closer look at my compiler errors and realized that I hadn't set the C/C++ compiler version in my build to LLVM GCC4.2. That fixed it for me.

Thanks again for providing the source. Any chance you could throw it up on github so I could fork it?

Thanks a lot for sharing the source. I tried to build the library from source using Xcode 4.2. But the generated libiOSJavaScriptCore.a file doesn't work properly in my test project.

I got a linker error:
Undefined symbols for architecture armv7: _WebCoreWebThreadIsLockedOrDisabled

I'm wondering if there is any tricks to build the library. The pre-compiled .a file from your website works perfectly.

Thanks in advance.

Could you please tell me where to get the original source codes of JavaScriptCore v534.27?

I tried to checkout a copy from svn.webkit.org/repository/webkit/tags/Safari-534.27/. But it seems different from the one you used.

By the way, Titanium maintains their compilable copy of JavaScriptCore at github.com/appcelerator/tijscore, which is using the same version of JSC as iOS 4.3.3

good job. is it possible to do the same for webcore? what do you think is needed?

One note: my understanding of LGPL is that it isn't permissible to statically link code under another licence (except GPL) to it unless you make it possible for users to update the LGPL library themselves (e.g. to fix a bug or enhance it). You can provide either source code or object code (or a mix) for the rest of the program along with suitable build instructions/scripts/resources.

This might make JavaScriptCore tricky to use in this way in a commercial iOS app.

I was wondering about the icucore library which you describe as being private:

"I'm just not allowed to use any functions of it. So I compiled JavaScriptCore again, this time setting the UCONFIG_NO_COLLATION preprocessor macro to disable unicode sorting."

However I cannot build my project using the libiOSJavaScriptCore.a downloaded from the above link without linking with -licucore option. Also you say to include libicucore.dylib. Why are these steps necessary?