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      1 """
      2 Tests that C++ member and static variables are available where they should be.
      3 """
      4 import lldb
      5 from lldbtest import *
      6 import lldbutil
      7 
      8 class CPPThisTestCase(TestBase):
      9     
     10     mydir = os.path.join("lang", "cpp", "this")
     11     
     12     @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
     13     #rdar://problem/9962849
     14     #@expectedFailureClang
     15     @dsym_test
     16     def test_with_dsym_and_run_command(self):
     17         """Test that the appropriate member variables are available when stopped in C++ static, inline, and const methods"""
     18         self.buildDsym()
     19         self.static_method_commands()
     20 
     21     #rdar://problem/9962849
     22     @expectedFailureFreeBSD('llvm.org/pr16697') # Expression fails with 'there is no JIT compiled function'
     23     @expectedFailureGcc # llvm.org/pr15439 The 'this' pointer isn't available during expression evaluation when stopped in an inlined member function.
     24     @expectedFailureIcc # ICC doesn't emit correct DWARF inline debug info for inlined member functions
     25     @dwarf_test
     26     def test_with_dwarf_and_run_command(self):
     27         """Test that the appropriate member variables are available when stopped in C++ static, inline, and const methods"""
     28         self.buildDwarf()
     29         self.static_method_commands()
     30 
     31     def setUp(self):
     32         TestBase.setUp(self)
     33     
     34     def set_breakpoint(self, line):
     35         lldbutil.run_break_set_by_file_and_line (self, "main.cpp", line, num_expected_locations=1, loc_exact=False)
     36 
     37     def static_method_commands(self):
     38         """Test that the appropriate member variables are available when stopped in C++ static, inline, and const methods"""
     39         self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
     40 
     41         self.set_breakpoint(line_number('main.cpp', '// breakpoint 1'))
     42         self.set_breakpoint(line_number('main.cpp', '// breakpoint 2'))
     43         self.set_breakpoint(line_number('main.cpp', '// breakpoint 3'))
     44         self.set_breakpoint(line_number('main.cpp', '// breakpoint 4'))
     45 
     46         self.runCmd("process launch", RUN_SUCCEEDED)
     47 
     48         self.expect("expression -- m_a = 2",
     49                     startstr = "(int) $0 = 2")
     50         
     51         self.runCmd("process continue")
     52         
     53         # This would be disallowed if we enforced const.  But we don't.
     54         self.expect("expression -- m_a = 2",
     55                     startstr = "(int) $1 = 2")
     56         
     57         self.expect("expression -- (int)getpid(); m_a", 
     58                     startstr = "(int) $2 = 2")
     59 
     60         self.runCmd("process continue")
     61 
     62         self.expect("expression -- s_a",
     63                     startstr = "(int) $3 = 5")
     64 
     65         self.runCmd("process continue")
     66 
     67         self.expect("expression -- m_a",
     68                     startstr = "(int) $4 = 2")
     69 
     70 if __name__ == '__main__':
     71     import atexit
     72     lldb.SBDebugger.Initialize()
     73     atexit.register(lambda: lldb.SBDebugger.Terminate())
     74     unittest2.main()
     75