[LLVMbugs] [Bug 3234] New: Improve diagnostics for missing Obj-C properties

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3234

           Summary: Improve diagnostics for missing Obj-C properties
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Semantic Analyzer
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: andersca at mac.com
                CC: llvmbugs at cs.uiuc.edu


This:

void f(NSObject *o)
{
  o.foo;
}

results in the following error when compiled with gcc:

iMac:clang andersca$ gcc -fsyntax-only t.m
t.m: In function 'f':
t.m:5: error: request for member 'sliff' in something not a structure or union

And when compiled with clang:

iMac:clang andersca$ clang -fsyntax-only t.m
t.m:5:5: error: member reference base type 'NSObject *' is not a structure or
union
  o.sliff;
  ~ ^

It would be nice to give a better diagnostic about missing properties if we
notice that the object in question is an Objective-C object.


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