159 lines
6.3 KiB
Python
159 lines
6.3 KiB
Python
"""
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Test that C++ template classes that have integer parameters work correctly.
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We must reconstruct the types correctly so the template types are correct
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and display correctly, and also make sure the expression parser works and
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is able the find all needed functions when evaluating expressions
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"""
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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 TemplateArgsTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def prepareProcess(self):
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self.build()
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# Create a target by the debugger.
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exe = self.getBuildArtifact("a.out")
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Set breakpoints inside and outside methods that take pointers to the
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# containing struct.
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line = line_number('main.cpp', '// Breakpoint 1')
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", line, num_expected_locations=1, loc_exact=True)
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arguments = None
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environment = None
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(
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arguments, environment, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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# Get the thread of the process
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self.assertTrue(
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process.GetState() == lldb.eStateStopped,
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PROCESS_STOPPED)
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thread = lldbutil.get_stopped_thread(
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process, lldb.eStopReasonBreakpoint)
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# Get frame for current thread
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return thread.GetSelectedFrame()
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def test_integer_args(self):
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frame = self.prepareProcess()
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testpos = frame.FindVariable('testpos')
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self.assertTrue(
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testpos.IsValid(),
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'make sure we find a local variabble named "testpos"')
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self.assertEquals(testpos.GetType().GetName(), 'TestObj<1>')
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expr_result = frame.EvaluateExpression("testpos.getArg()")
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self.assertTrue(
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expr_result.IsValid(),
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'got a valid expression result from expression "testpos.getArg()"')
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self.assertEquals(expr_result.GetValue(), "1", "testpos.getArg() == 1")
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self.assertTrue(
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expr_result.GetType().GetName() == "int",
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'expr_result.GetType().GetName() == "int"')
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testneg = frame.FindVariable('testneg')
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self.assertTrue(
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testneg.IsValid(),
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'make sure we find a local variabble named "testneg"')
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self.assertEquals(testneg.GetType().GetName(), 'TestObj<-1>')
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expr_result = frame.EvaluateExpression("testneg.getArg()")
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self.assertTrue(
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expr_result.IsValid(),
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'got a valid expression result from expression "testneg.getArg()"')
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self.assertTrue(
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expr_result.GetValue() == "-1",
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"testneg.getArg() == -1")
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self.assertTrue(
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expr_result.GetType().GetName() == "int",
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'expr_result.GetType().GetName() == "int"')
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@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24489")
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def test_template_template_args(self):
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frame = self.prepareProcess()
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c1 = frame.FindVariable('c1')
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self.assertTrue(
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c1.IsValid(),
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'make sure we find a local variabble named "c1"')
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self.assertEquals(c1.GetType().GetName(), 'C<float, T1>')
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f1 = c1.GetChildMemberWithName("V").GetChildAtIndex(0).GetChildMemberWithName("f")
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self.assertEquals(f1.GetType().GetName(), 'float')
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self.assertEquals(f1.GetValue(), '1.5')
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c2 = frame.FindVariable('c2')
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self.assertTrue(
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c2.IsValid(),
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'make sure we find a local variabble named "c2"')
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self.assertEquals(c2.GetType().GetName(), 'C<double, T1, T2>')
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f2 = c2.GetChildMemberWithName("V").GetChildAtIndex(0).GetChildMemberWithName("f")
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self.assertEquals(f2.GetType().GetName(), 'double')
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self.assertEquals(f2.GetValue(), '1.5')
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f3 = c2.GetChildMemberWithName("V").GetChildAtIndex(1).GetChildMemberWithName("f")
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self.assertEquals(f3.GetType().GetName(), 'double')
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self.assertEquals(f3.GetValue(), '2.5')
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f4 = c2.GetChildMemberWithName("V").GetChildAtIndex(1).GetChildMemberWithName("i")
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self.assertEquals(f4.GetType().GetName(), 'int')
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self.assertEquals(f4.GetValue(), '42')
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# Gcc does not generate the necessary DWARF attribute for enum template
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# parameters.
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@expectedFailureAll(bugnumber="llvm.org/pr28354", compiler="gcc")
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@skipIf(dwarf_version=['<', '4'])
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def test_enum_args(self):
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frame = self.prepareProcess()
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# Make sure "member" can be displayed and also used in an expression
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# correctly
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member = frame.FindVariable('member')
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self.assertTrue(
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member.IsValid(),
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'make sure we find a local variabble named "member"')
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self.assertTrue(member.GetType().GetName() ==
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'EnumTemplate<EnumType::Member>')
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expr_result = frame.EvaluateExpression("member.getMember()")
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self.assertTrue(
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expr_result.IsValid(),
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'got a valid expression result from expression "member.getMember()"')
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self.assertTrue(
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expr_result.GetValue() == "123",
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"member.getMember() == 123")
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self.assertTrue(
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expr_result.GetType().GetName() == "int",
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'expr_result.GetType().GetName() == "int"')
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# Make sure "subclass" can be displayed and also used in an expression
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# correctly
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subclass = frame.FindVariable('subclass')
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self.assertTrue(
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subclass.IsValid(),
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'make sure we find a local variabble named "subclass"')
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self.assertTrue(subclass.GetType().GetName() ==
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'EnumTemplate<EnumType::Subclass>')
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expr_result = frame.EvaluateExpression("subclass.getMember()")
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self.assertTrue(
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expr_result.IsValid(),
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'got a valid expression result from expression "subclass.getMember()"')
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self.assertTrue(
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expr_result.GetValue() == "246",
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"subclass.getMember() == 246")
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self.assertTrue(
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expr_result.GetType().GetName() == "int",
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'expr_result.GetType().GetName() == "int"')
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