[LLVMbugs] [Bug 16046] New: Redefining an ivar contained in a class extension in implementation produces two identical invars

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=16046

            Bug ID: 16046
           Summary: Redefining an ivar contained in a class extension in
                    implementation produces two identical invars
           Product: clang
           Version: 3.1
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: negm-awad at cocoading.de
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

1. Source

@interface Person : NSObject
@end

@interface Person ()
{
    NSString *firstName;
}
@end


@implementation Person
{
    NSString *firstName;
}

2. Expected behavior

I expect an error as the ivar would be defined in the class' interface:

"Error: Instance variable is already declared"

3. Actual behavior:

No error, but two ivars with the same name.

Thanks in advance

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