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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Objective C - compiler error using new within the implementation when init is marked with unavailable attribute"
href="https://bugs.llvm.org/show_bug.cgi?id=40285">40285</a>
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<th>Summary</th>
<td>Objective C - compiler error using new within the implementation when init is marked with unavailable attribute
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>Macintosh
</td>
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<th>OS</th>
<td>MacOS X
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jelin@microsoft.com
</td>
</tr>
<tr>
<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=21311" name="attach_21311" title="Repro test code.">attachment 21311</a> <a href="attachment.cgi?id=21311&action=edit" title="Repro test code.">[details]</a></span>
Repro test code.
The regression was introduced sometime between 340925 and 342523.
The following code used to compile fine in 340925, but now generate the error:
#import <Foundation/Foundation.h>
@interface Test : NSObject
- (nullable instancetype)init __attribute__((unavailable("Use the
sharedInstance singleton method instead.")));
+ (nullable instancetype)sharedInstance;
@end
@implementation Test
+ (nullable instancetype)sharedInstance {
return [Test new];
}
@end
Compiled with:
clang -isysroot
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk
-c test.m
Error message:
test.m:25:18: error: 'new' is unavailable: Use the sharedInstance
singleton method instead.
return [Test new];
^
test.m:14:1: note: 'init' has been explicitly marked unavailable
here
- (nullable instancetype)init __attribute__((unavailable("Use the shared...
^
1 error generated.</pre>
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