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*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
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llvm-svn: 280751
125 lines
4.3 KiB
Python
125 lines
4.3 KiB
Python
"""
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Test calling a function that throws an ObjC exception, make sure that it doesn't propagate the exception.
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"""
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from __future__ import print_function
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class ExprCommandWithThrowTestCase(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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self.main_source = "call-throws.m"
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self.main_source_spec = lldb.SBFileSpec(self.main_source)
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@skipUnlessDarwin
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def test(self):
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"""Test calling a function that throws and ObjC exception."""
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self.build()
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self.call_function()
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def check_after_call(self):
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# Check that we are back where we were before:
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frame = self.thread.GetFrameAtIndex(0)
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self.assertTrue(
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self.orig_frame_pc == frame.GetPC(),
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"Restored the zeroth frame correctly")
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def call_function(self):
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"""Test calling function that throws."""
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exe_name = "a.out"
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exe = os.path.join(os.getcwd(), exe_name)
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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(
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'I am about to throw.', self.main_source_spec)
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self.assertTrue(breakpoint.GetNumLocations() > 0, VALID_BREAKPOINT)
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# Launch the process, and do not stop at the entry point.
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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# Frame #0 should be at our breakpoint.
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threads = lldbutil.get_threads_stopped_at_breakpoint(
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process, breakpoint)
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self.assertTrue(len(threads) == 1)
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self.thread = threads[0]
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options = lldb.SBExpressionOptions()
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options.SetUnwindOnError(True)
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frame = self.thread.GetFrameAtIndex(0)
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# Store away the PC to check that the functions unwind to the right
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# place after calls
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self.orig_frame_pc = frame.GetPC()
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value = frame.EvaluateExpression("[my_class callMeIThrow]", options)
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self.assertTrue(value.IsValid())
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self.assertTrue(value.GetError().Success() == False)
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self.check_after_call()
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# Okay, now try with a breakpoint in the called code in the case where
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# we are ignoring breakpoint hits.
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handler_bkpt = target.BreakpointCreateBySourceRegex(
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"I felt like it", self.main_source_spec)
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self.assertTrue(handler_bkpt.GetNumLocations() > 0)
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options.SetIgnoreBreakpoints(True)
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options.SetUnwindOnError(True)
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value = frame.EvaluateExpression("[my_class callMeIThrow]", options)
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self.assertTrue(
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value.IsValid() and value.GetError().Success() == False)
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self.check_after_call()
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# Now set the ObjC language breakpoint and make sure that doesn't
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# interfere with the call:
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exception_bkpt = target.BreakpointCreateForException(
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lldb.eLanguageTypeObjC, False, True)
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self.assertTrue(exception_bkpt.GetNumLocations() > 0)
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options.SetIgnoreBreakpoints(True)
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options.SetUnwindOnError(True)
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value = frame.EvaluateExpression("[my_class callMeIThrow]", options)
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self.assertTrue(
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value.IsValid() and value.GetError().Success() == False)
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self.check_after_call()
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# Now turn off exception trapping, and call a function that catches the exceptions,
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# and make sure the function actually completes, and we get the right
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# value:
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options.SetTrapExceptions(False)
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value = frame.EvaluateExpression("[my_class iCatchMyself]", options)
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self.assertTrue(value.IsValid())
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self.assertTrue(value.GetError().Success())
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self.assertTrue(value.GetValueAsUnsigned() == 57)
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self.check_after_call()
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options.SetTrapExceptions(True)
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# Now set this unwind on error to false, and make sure that we stop
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# where the exception was thrown
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options.SetUnwindOnError(False)
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value = frame.EvaluateExpression("[my_class callMeIThrow]", options)
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self.assertTrue(
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value.IsValid() and value.GetError().Success() == False)
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self.check_after_call()
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