56 wiersze
1.8 KiB
JavaScript
56 wiersze
1.8 KiB
JavaScript
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var assert = require('assert');
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var ref = require('ref');
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var ffi = require('../');
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var voidPtr = ref.refType(ref.types.void);
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// these are "opaque" pointer types, so we only care about the memory addess,
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// and not the contents (which are internal to Apple). Therefore we can typedef
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// these opaque types to `void *` and it's essentially the same thing.
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var id = voidPtr;
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var SEL = voidPtr;
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var Class = voidPtr;
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if (ffi.HAS_OBJC) {
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describe('@try / @catch', function () {
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// not entirely sure why this works, but we have to load `Foundation` first,
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// otherwise Objective-C exceptions will not work. Magic!
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// https://github.com/node-ffi/node-ffi/issues/195
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var lib = ffi.DynamicLibrary('/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation')
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afterEach(gc);
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var objcLib = new ffi.Library('libobjc', {
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'objc_msgSend': [ id, [ id, SEL ] ],
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'objc_getClass': [ Class, [ 'string' ] ],
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'sel_registerName': [ SEL, [ 'string' ] ]
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});
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// create an NSAutoreleasePool instance
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var NSAutoreleasePool = objcLib.objc_getClass('NSAutoreleasePool');
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var sel_new = objcLib.sel_registerName('new');
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var pool = objcLib.objc_msgSend(NSAutoreleasePool, sel_new);
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it('should proxy @try/@catch to JavaScript via try/catch/throw', function () {
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var sel_retain = objcLib.sel_registerName('retain');
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assert.throws(function () {
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objcLib.objc_msgSend(pool, sel_retain);
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});
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});
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it('should throw a Buffer instance when an exception happens', function () {
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var sel_retain = objcLib.sel_registerName('retain');
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assert.throws(function () {
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objcLib.objc_msgSend(pool, sel_retain);
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}, function (e) {
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return Buffer.isBuffer(e)
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&& !e.isNull()
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&& e.address() > 0;
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});
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});
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});
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}
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