"""
Tests that C++ member and static variables have correct layout and scope.
"""
import lldb
from lldbtest import *
import lldbutil

class CPPStaticMembersTestCase(TestBase):
    
    mydir = os.path.join("lang", "cpp", "static_members")
    
    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
    @unittest2.expectedFailure # llvm.org/pr15401
    @dsym_test
    def test_with_dsym_and_run_command(self):
        """Test that member variables have the correct layout, scope and qualifiers when stopped inside and outside C++ methods"""
        self.buildDsym()
        self.static_member_commands()

    @unittest2.expectedFailure # llvm.org/pr15401
    @dwarf_test
    def test_with_dwarf_and_run_command(self):
        """Test that member variables have the correct layout, scope and qualifiers when stopped inside and outside C++ methods"""
        self.buildDwarf()
        self.static_member_commands()

    def setUp(self):
        TestBase.setUp(self)
    
    def set_breakpoint(self, line):
        lldbutil.run_break_set_by_file_and_line (self, "main.cpp", line, num_expected_locations=1, loc_exact=False)

    def static_member_commands(self):
        """Test that member variables have the correct layout, scope and qualifiers when stopped inside and outside C++ methods"""
        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)

        self.set_breakpoint(line_number('main.cpp', '// breakpoint 1'))
        self.set_breakpoint(line_number('main.cpp', '// breakpoint 2'))

        self.runCmd("process launch", RUN_SUCCEEDED)
        self.expect("expression my_a.access()",
                    startstr = "(long) $0 = 10")
        
        self.expect("expression my_a.m_a",
                    startstr = "(short) $1 = 1")
        
        # Note: SymbolFileDWARF::ParseChildMembers doesn't call AddFieldToRecordType, consistent with clang's AST layout.
        self.expect("expression my_a.s_d",
                    startstr = "(int) $2 = 4")
        
        self.expect("expression my_a.s_b",
                    startstr = "(long) $3 = 2")
        
        self.expect("expression A::s_b",
                    startstr = "(long) $4 = 2")

        # should not be available in global scope 
        self.expect("expression s_d",
                    startstr = "error: use of undeclared identifier 's_d'")
        
        self.runCmd("process continue")
        self.expect("expression m_c",
                    startstr = "(char) $5 = \'\\x03\'")
        
        self.expect("expression s_b",
                    startstr = "(long) $6 = 2")

        self.runCmd("process continue")
        

if __name__ == '__main__':
    import atexit
    lldb.SBDebugger.Initialize()
    atexit.register(lambda: lldb.SBDebugger.Terminate())
    unittest2.main()