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      1 // RUN: %clang_cc1 -triple i386-apple-darwin9 -analyze -analyzer-checker=core,alpha.core -analyzer-store=region -verify -fblocks -analyzer-opt-analyze-nested-blocks %s
      2 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -analyze -analyzer-checker=core,alpha.core -analyzer-store=region -verify -fblocks   -analyzer-opt-analyze-nested-blocks %s
      3 // expected-no-diagnostics
      4 
      5 //===------------------------------------------------------------------------------------------===//
      6 // This files tests our path-sensitive handling of Objective-c++ files.
      7 //===------------------------------------------------------------------------------------------===//
      8 
      9 // Test basic handling of references.
     10 char &test1_aux();
     11 char *test1() {
     12   return &test1_aux();
     13 }
     14 
     15 // Test test1_aux() evaluates to char &.
     16 char test1_as_rvalue() {
     17   return test1_aux();
     18 }
     19 
     20 // Test basic handling of references with Objective-C classes.
     21 @interface Test1
     22 - (char&) foo;
     23 @end
     24 
     25 char* Test1_harness(Test1 *p) {
     26   return &[p foo];
     27 }
     28 
     29 char Test1_harness_b(Test1 *p) {
     30   return [p foo];
     31 }
     32 
     33 // Basic test of C++ references with Objective-C pointers.
     34 @interface RDar10569024
     35 @property(readonly) int x;
     36 @end
     37 
     38 typedef RDar10569024* RDar10569024Ref;
     39 
     40 void rdar10569024_aux(RDar10569024Ref o);
     41 
     42 int rdar10569024(id p, id collection) {
     43   for (id elem in collection) {
     44     const RDar10569024Ref &o = (RDar10569024Ref) elem;
     45     rdar10569024_aux(o); // no-warning
     46     return o.x; // no-warning
     47   }
     48   return 0;
     49 }
     50