104 lines
4.7 KiB
Python
104 lines
4.7 KiB
Python
"""Test printing ivars and ObjC objects captured in blocks that are made in methods of an ObjC class."""
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from __future__ import print_function
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import os, time
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import lldb
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from lldbsuite.test.lldbtest import *
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import lldbsuite.test.lldbutil as lldbutil
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class TestObjCIvarsInBlocks(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line numbers to break inside main().
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self.main_source = "main.m"
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self.class_source = "ivars-in-blocks.m"
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self.class_source_file_spec = lldb.SBFileSpec(self.class_source)
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@skipUnlessDarwin
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@add_test_categories(['pyapi'])
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@expectedFailurei386 # This test requires the 2.0 runtime, so it will fail on i386.
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def test_with_python_api(self):
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"""Test printing the ivars of the self when captured in blocks"""
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self.build()
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exe = os.path.join(os.getcwd(), "a.out")
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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breakpoint = target.BreakpointCreateBySourceRegex ('// Break here inside the block.', self.class_source_file_spec)
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self.assertTrue(breakpoint, VALID_BREAKPOINT)
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breakpoint_two = target.BreakpointCreateBySourceRegex ('// Break here inside the class method block.', self.class_source_file_spec)
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self.assertTrue(breakpoint, VALID_BREAKPOINT)
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process = target.LaunchSimple (None, None, self.get_process_working_directory())
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self.assertTrue (process, "Created a process.")
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self.assertTrue (process.GetState() == lldb.eStateStopped, "Stopped it too.")
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thread_list = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint)
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self.assertTrue (len(thread_list) == 1)
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thread = thread_list[0]
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frame = thread.GetFrameAtIndex(0)
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self.assertTrue (frame, "frame 0 is valid")
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# First use the FindVariable API to see if we can find the ivar by undecorated name:
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direct_blocky = frame.GetValueForVariablePath ("blocky_ivar")
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self.assertTrue(direct_blocky, "Found direct access to blocky_ivar.")
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# Now get it as a member of "self" and make sure the two values are equal:
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self_var = frame.GetValueForVariablePath ("self")
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self.assertTrue (self_var, "Found self in block.")
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indirect_blocky = self_var.GetChildMemberWithName ("blocky_ivar")
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self.assertTrue (indirect_blocky, "Found blocky_ivar through self")
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error = lldb.SBError()
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direct_value = direct_blocky.GetValueAsSigned(error)
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self.assertTrue (error.Success(), "Got direct value for blocky_ivar")
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indirect_value = indirect_blocky.GetValueAsSigned (error)
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self.assertTrue (error.Success(), "Got indirect value for blocky_ivar")
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self.assertTrue (direct_value == indirect_value, "Direct and indirect values are equal.")
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# Now make sure that we can get at the captured ivar through the expression parser.
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# Doing a little trivial math will force this into the real expression parser:
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direct_expr = frame.EvaluateExpression ("blocky_ivar + 10")
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self.assertTrue (direct_expr, "Got blocky_ivar through the expression parser")
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# Again, get the value through self directly and make sure they are the same:
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indirect_expr = frame.EvaluateExpression ("self->blocky_ivar + 10")
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self.assertTrue (indirect_expr, "Got blocky ivar through expression parser using self.")
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direct_value = direct_expr.GetValueAsSigned (error)
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self.assertTrue (error.Success(), "Got value from direct use of expression parser")
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indirect_value = indirect_expr.GetValueAsSigned (error)
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self.assertTrue (error.Success(), "Got value from indirect access using the expression parser")
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self.assertTrue (direct_value == indirect_value, "Direct ivar access and indirect through expression parser produce same value.")
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process.Continue()
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self.assertTrue (process.GetState() == lldb.eStateStopped, "Stopped at the second breakpoint.")
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thread_list = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint_two)
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self.assertTrue (len(thread_list) == 1)
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thread = thread_list[0]
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frame = thread.GetFrameAtIndex(0)
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self.assertTrue (frame, "frame 0 is valid")
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expr = frame.EvaluateExpression("(ret)")
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self.assertTrue (expr, "Successfully got a local variable in a block in a class method.")
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ret_value_signed = expr.GetValueAsSigned (error)
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# print('ret_value_signed = %i' % (ret_value_signed))
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self.assertTrue (ret_value_signed == 5, "The local variable in the block was what we expected.")
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