1 """Test printing ivars and ObjC objects captured in blocks that are made in methods of an ObjC class.""" 2 3 import os, time 4 import unittest2 5 import lldb 6 from lldbtest import * 7 import lldbutil 8 9 class TestObjCIvarsInBlocks(TestBase): 10 11 mydir = os.path.join("lang", "objc", "blocks") 12 13 @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 14 # This test requires the 2.0 runtime, so it will fail on i386. 15 @expectedFailurei386 16 @python_api_test 17 @dsym_test 18 def test_with_dsym_and_python_api(self): 19 """Test printing the ivars of the self when captured in blocks""" 20 self.buildDsym() 21 self.ivars_in_blocks() 22 23 @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 24 @python_api_test 25 # This test requires the 2.0 runtime, so it will fail on i386. 26 @expectedFailurei386 27 @dwarf_test 28 def test_with_dwarf_and_python_api(self): 29 """Test printing the ivars of the self when captured in blocks""" 30 self.buildDwarf() 31 self.ivars_in_blocks() 32 33 def setUp(self): 34 # Call super's setUp(). 35 TestBase.setUp(self) 36 # Find the line numbers to break inside main(). 37 self.main_source = "main.m" 38 self.class_source = "ivars-in-blocks.m" 39 self.class_source_file_spec = lldb.SBFileSpec(self.class_source) 40 41 def ivars_in_blocks (self): 42 """Test printing the ivars of the self when captured in blocks""" 43 exe = os.path.join(os.getcwd(), "a.out") 44 45 target = self.dbg.CreateTarget(exe) 46 self.assertTrue(target, VALID_TARGET) 47 48 breakpoint = target.BreakpointCreateBySourceRegex ('// Break here inside the block.', self.class_source_file_spec) 49 self.assertTrue(breakpoint, VALID_BREAKPOINT) 50 51 breakpoint_two = target.BreakpointCreateBySourceRegex ('// Break here inside the class method block.', self.class_source_file_spec) 52 self.assertTrue(breakpoint, VALID_BREAKPOINT) 53 54 process = target.LaunchSimple (None, None, os.getcwd()) 55 self.assertTrue (process, "Created a process.") 56 self.assertTrue (process.GetState() == lldb.eStateStopped, "Stopped it too.") 57 58 thread_list = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint) 59 self.assertTrue (len(thread_list) == 1) 60 thread = thread_list[0] 61 62 frame = thread.GetFrameAtIndex(0) 63 self.assertTrue (frame, "frame 0 is valid") 64 65 # First use the FindVariable API to see if we can find the ivar by undecorated name: 66 direct_blocky = frame.GetValueForVariablePath ("blocky_ivar") 67 self.assertTrue(direct_blocky, "Found direct access to blocky_ivar.") 68 69 # Now get it as a member of "self" and make sure the two values are equal: 70 self_var = frame.GetValueForVariablePath ("self") 71 self.assertTrue (self_var, "Found self in block.") 72 indirect_blocky = self_var.GetChildMemberWithName ("blocky_ivar") 73 self.assertTrue (indirect_blocky, "Found blocky_ivar through self") 74 75 error = lldb.SBError() 76 direct_value = direct_blocky.GetValueAsSigned(error) 77 self.assertTrue (error.Success(), "Got direct value for blocky_ivar") 78 79 indirect_value = indirect_blocky.GetValueAsSigned (error) 80 self.assertTrue (error.Success(), "Got indirect value for blocky_ivar") 81 82 self.assertTrue (direct_value == indirect_value, "Direct and indirect values are equal.") 83 84 # Now make sure that we can get at the captured ivar through the expression parser. 85 # Doing a little trivial math will force this into the real expression parser: 86 direct_expr = frame.EvaluateExpression ("blocky_ivar + 10") 87 self.assertTrue (direct_expr, "Got blocky_ivar through the expression parser") 88 89 # Again, get the value through self directly and make sure they are the same: 90 indirect_expr = frame.EvaluateExpression ("self->blocky_ivar + 10") 91 self.assertTrue (indirect_expr, "Got blocky ivar through expression parser using self.") 92 93 direct_value = direct_expr.GetValueAsSigned (error) 94 self.assertTrue (error.Success(), "Got value from direct use of expression parser") 95 96 indirect_value = indirect_expr.GetValueAsSigned (error) 97 self.assertTrue (error.Success(), "Got value from indirect access using the expression parser") 98 99 self.assertTrue (direct_value == indirect_value, "Direct ivar access and indirect through expression parser produce same value.") 100 101 process.Continue() 102 self.assertTrue (process.GetState() == lldb.eStateStopped, "Stopped at the second breakpoint.") 103 104 thread_list = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint_two) 105 self.assertTrue (len(thread_list) == 1) 106 thread = thread_list[0] 107 108 frame = thread.GetFrameAtIndex(0) 109 self.assertTrue (frame, "frame 0 is valid") 110 111 expr = frame.EvaluateExpression("(ret)") 112 self.assertTrue (expr, "Successfully got a local variable in a block in a class method.") 113 114 ret_value_signed = expr.GetValueAsSigned (error) 115 print 'ret_value_signed = %i' % (ret_value_signed) 116 self.assertTrue (ret_value_signed == 5, "The local variable in the block was what we expected.") 117 118 if __name__ == '__main__': 119 import atexit 120 lldb.SBDebugger.Initialize() 121 atexit.register(lambda: lldb.SBDebugger.Terminate()) 122 unittest2.main() 123
