132 lines · python
1"""Test printing ivars and ObjC objects captured in blocks that are made in methods of an ObjC class."""2 3import lldb4from lldbsuite.test.decorators import *5from lldbsuite.test.lldbtest import *6from lldbsuite.test import lldbutil7 8 9class TestObjCIvarsInBlocks(TestBase):10 def setUp(self):11 # Call super's setUp().12 TestBase.setUp(self)13 # Find the line numbers to break inside main().14 self.main_source = "main.m"15 self.class_source = "ivars-in-blocks.m"16 self.class_source_file_spec = lldb.SBFileSpec(self.class_source)17 18 @add_test_categories(["pyapi"])19 @skipIf(dwarf_version=["<", "4"])20 @expectedFailureAll(21 archs=["i[3-6]86"],22 bugnumber="This test requires the 2.0 runtime, so it will fail on i386",23 )24 def test_with_python_api(self):25 """Test printing the ivars of the self when captured in blocks"""26 self.build()27 exe = self.getBuildArtifact("a.out")28 29 target = self.dbg.CreateTarget(exe)30 self.assertTrue(target, VALID_TARGET)31 32 breakpoint = target.BreakpointCreateBySourceRegex(33 "// Break here inside the block.", self.class_source_file_spec34 )35 self.assertTrue(breakpoint, VALID_BREAKPOINT)36 37 breakpoint_two = target.BreakpointCreateBySourceRegex(38 "// Break here inside the class method block.", self.class_source_file_spec39 )40 self.assertTrue(breakpoint, VALID_BREAKPOINT)41 42 process = target.LaunchSimple(None, None, self.get_process_working_directory())43 self.assertTrue(process, "Created a process.")44 self.assertEqual(process.GetState(), lldb.eStateStopped, "Stopped it too.")45 46 self.runCmd("settings set target.prefer-dynamic-value no-dynamic-values")47 48 thread_list = lldbutil.get_threads_stopped_at_breakpoint(process, breakpoint)49 self.assertEqual(len(thread_list), 1)50 thread = thread_list[0]51 52 frame = thread.GetFrameAtIndex(0)53 self.assertTrue(frame, "frame 0 is valid")54 55 # First use the FindVariable API to see if we can find the ivar by56 # undecorated name:57 direct_blocky = frame.GetValueForVariablePath("blocky_ivar")58 self.assertTrue(direct_blocky, "Found direct access to blocky_ivar.")59 60 # Now get it as a member of "self" and make sure the two values are61 # equal:62 self_var = frame.GetValueForVariablePath("self")63 self.assertTrue(self_var, "Found self in block.")64 indirect_blocky = self_var.GetChildMemberWithName("blocky_ivar")65 self.assertTrue(indirect_blocky, "Found blocky_ivar through self")66 67 error = lldb.SBError()68 direct_value = direct_blocky.GetValueAsSigned(error)69 self.assertSuccess(error, "Got direct value for blocky_ivar")70 71 indirect_value = indirect_blocky.GetValueAsSigned(error)72 self.assertSuccess(error, "Got indirect value for blocky_ivar")73 74 self.assertEqual(75 direct_value, indirect_value, "Direct and indirect values are equal."76 )77 78 # Now make sure that we can get at the captured ivar through the expression parser.79 # Doing a little trivial math will force this into the real expression80 # parser:81 direct_expr = frame.EvaluateExpression("blocky_ivar + 10")82 self.assertTrue(direct_expr, "Got blocky_ivar through the expression parser")83 84 # Again, get the value through self directly and make sure they are the85 # same:86 indirect_expr = frame.EvaluateExpression("self->blocky_ivar + 10")87 self.assertTrue(88 indirect_expr, "Got blocky ivar through expression parser using self."89 )90 91 direct_value = direct_expr.GetValueAsSigned(error)92 self.assertTrue(93 error.Success(), "Got value from direct use of expression parser"94 )95 96 indirect_value = indirect_expr.GetValueAsSigned(error)97 self.assertTrue(98 error.Success(),99 "Got value from indirect access using the expression parser",100 )101 102 self.assertEqual(103 direct_value,104 indirect_value,105 "Direct ivar access and indirect through expression parser produce same value.",106 )107 108 process.Continue()109 self.assertEqual(110 process.GetState(), lldb.eStateStopped, "Stopped at the second breakpoint."111 )112 113 thread_list = lldbutil.get_threads_stopped_at_breakpoint(114 process, breakpoint_two115 )116 self.assertEqual(len(thread_list), 1)117 thread = thread_list[0]118 119 frame = thread.GetFrameAtIndex(0)120 self.assertTrue(frame, "frame 0 is valid")121 122 expr = frame.EvaluateExpression("(ret)")123 self.assertTrue(124 expr, "Successfully got a local variable in a block in a class method."125 )126 127 ret_value_signed = expr.GetValueAsSigned(error)128 self.trace("ret_value_signed = %i" % (ret_value_signed))129 self.assertEqual(130 ret_value_signed, 5, "The local variable in the block was what we expected."131 )132