[LLVMbugs] [Bug 22047] New: ObjC: Method unavailability attribute doesn't work with overloaded methods

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=22047

            Bug ID: 22047
           Summary: ObjC: Method unavailability attribute doesn't work
                    with overloaded methods
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: nicolasweber at gmx.de
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

@interface Face1
- (void)foo:(int)i __attribute__((unavailable));
@end
@interface Face0
- (void)foo:(float)i;
@end

void f(id i) {
  [i foo:4.0f];
}


$ bin/clang -c test.m
test.m:9:6: error: 'foo:' is unavailable
  [i foo:4.0f];
     ^
test.m:2:1: note: 'foo:' has been explicitly marked unavailable here
- (void)foo:(int)i __attribute__((unavailable));
^

This is incorrect, the float version of foo: is available. This is because the
warning only looks at the first overload.

If the order of Face1 and Face0 is swapped, the warning goes away.

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