CwlCatchException.m

//
//  CwlCatchException.m
//  CwlAssertionTesting
//
//  Created by Matt Gallagher on 2016/01/10.
//  Copyright © 2016 Matt Gallagher ( http://cocoawithlove.com ). All rights reserved.
//
//  Permission to use, copy, modify, and/or distribute this software for any
//  purpose with or without fee is hereby granted, provided that the above
//  copyright notice and this permission notice appear in all copies.
//
//  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
//  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
//  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
//  SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
//  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
//  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
//  IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//

#import "CwlCatchException.h"

#if !SWIFT_PACKAGE && NON_SWIFT_PACKAGE
__attribute__((visibility("hidden")))
#endif
NSException* catchExceptionOfKind(Class __nonnull type, __attribute__((noescape)) void (^ __nonnull inBlock)(void)) {
	@try {
		inBlock();
	} @catch (NSException *exception) {
		if ([exception isKindOfClass:type]) {
			return exception;
		} else {
			@throw;
		}
	}
	return nil;
}