| """ |
| Test lldb Python API SBValue::Cast(SBType) for C++ types. |
| """ |
| |
| import os, time |
| import re |
| import unittest2 |
| import lldb, lldbutil |
| from lldbtest import * |
| |
| class CppValueCastTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| # rdar://problem/10808472 SBValue::Cast test case is failing (virtual inheritance) |
| @unittest2.expectedFailure |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_value_cast_with_dsym_and_virtual_inheritance(self): |
| """Test SBValue::Cast(SBType) API for C++ types with virtual inheritance.""" |
| self.buildDsym(dictionary=self.d_virtual) |
| self.setTearDownCleanup(dictionary=self.d_virtual) |
| self.do_sbvalue_cast(self.exe_name) |
| |
| # rdar://problem/10808472 SBValue::Cast test case is failing (virtual inheritance) |
| @unittest2.expectedFailure |
| @python_api_test |
| @dwarf_test |
| def test_value_cast_with_dwarf_and_virtual_inheritance(self): |
| """Test SBValue::Cast(SBType) API for C++ types with virtual inheritance.""" |
| self.buildDwarf(dictionary=self.d_virtual) |
| self.setTearDownCleanup(dictionary=self.d_virtual) |
| self.do_sbvalue_cast(self.exe_name) |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_value_cast_with_dsym_and_regular_inheritance(self): |
| """Test SBValue::Cast(SBType) API for C++ types with regular inheritance.""" |
| self.buildDsym(dictionary=self.d_regular) |
| self.setTearDownCleanup(dictionary=self.d_regular) |
| self.do_sbvalue_cast(self.exe_name) |
| |
| @python_api_test |
| @dwarf_test |
| def test_value_cast_with_dwarf_and_regular_inheritance(self): |
| """Test SBValue::Cast(SBType) API for C++ types with regular inheritance.""" |
| self.buildDwarf(dictionary=self.d_regular) |
| self.setTearDownCleanup(dictionary=self.d_regular) |
| self.do_sbvalue_cast(self.exe_name) |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| |
| # Find the line number to break for main.c. |
| self.source = 'sbvalue-cast.cpp'; |
| self.line = line_number(self.source, '// Set breakpoint here.') |
| self.exe_name = self.testMethodName |
| self.d_virtual = {'CXX_SOURCES': self.source, 'EXE': self.exe_name, 'CFLAGS_EXTRAS': '-DDO_VIRTUAL_INHERITANCE'} |
| self.d_regular = {'CXX_SOURCES': self.source, 'EXE': self.exe_name} |
| |
| def do_sbvalue_cast (self, exe_name): |
| """Test SBValue::Cast(SBType) API for C++ types.""" |
| exe = os.path.join(os.getcwd(), exe_name) |
| |
| # Create a target from the debugger. |
| |
| target = self.dbg.CreateTarget (exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| # Set up our breakpoints: |
| |
| breakpoint = target.BreakpointCreateByLocation(self.source, self.line) |
| self.assertTrue(breakpoint, VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at the entry point. |
| process = target.LaunchSimple (None, None, self.get_process_working_directory()) |
| |
| self.assertTrue(process.GetState() == lldb.eStateStopped, |
| PROCESS_STOPPED) |
| |
| # Find DerivedA and DerivedB types. |
| typeA = target.FindFirstType('DerivedA') |
| typeB = target.FindFirstType('DerivedB') |
| self.DebugSBType(typeA) |
| self.DebugSBType(typeB) |
| self.assertTrue(typeA) |
| self.assertTrue(typeB) |
| error = lldb.SBError() |
| |
| # First stop is for DerivedA instance. |
| threads = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint) |
| self.assertTrue (len(threads) == 1) |
| thread = threads[0] |
| frame0 = thread.GetFrameAtIndex(0) |
| |
| tellerA = frame0.FindVariable('teller', lldb.eNoDynamicValues) |
| self.DebugSBValue(tellerA) |
| self.assertTrue(tellerA.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 20) |
| |
| if self.TraceOn(): |
| for child in tellerA: |
| print "child name:", child.GetName() |
| print child |
| |
| # Call SBValue.Cast() to obtain instanceA. |
| instanceA = tellerA.Cast(typeA.GetPointerType()) |
| self.DebugSBValue(instanceA) |
| |
| # Iterate through all the children and print their values. |
| if self.TraceOn(): |
| for child in instanceA: |
| print "child name:", child.GetName() |
| print child |
| a_member_val = instanceA.GetChildMemberWithName('m_a_val') |
| self.DebugSBValue(a_member_val) |
| self.assertTrue(a_member_val.GetValueAsUnsigned(error, 0) == 10) |
| |
| # Second stop is for DerivedB instance. |
| threads = lldbutil.continue_to_breakpoint (process, breakpoint) |
| self.assertTrue (len(threads) == 1) |
| thread = threads[0] |
| frame0 = thread.GetFrameAtIndex(0) |
| |
| tellerB = frame0.FindVariable('teller', lldb.eNoDynamicValues) |
| self.DebugSBValue(tellerB) |
| self.assertTrue(tellerB.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 12) |
| |
| if self.TraceOn(): |
| for child in tellerB: |
| print "child name:", child.GetName() |
| print child |
| |
| # Call SBValue.Cast() to obtain instanceB. |
| instanceB = tellerB.Cast(typeB.GetPointerType()) |
| self.DebugSBValue(instanceB) |
| |
| # Iterate through all the children and print their values. |
| if self.TraceOn(): |
| for child in instanceB: |
| print "child name:", child.GetName() |
| print child |
| b_member_val = instanceB.GetChildMemberWithName('m_b_val') |
| self.DebugSBValue(b_member_val) |
| self.assertTrue(b_member_val.GetValueAsUnsigned(error, 0) == 36) |
| |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |
