3ad8657ff6
This patch adds a new API to `SBType` to retrieve the value of a template parameter given an index. We re-use the `TypeSystemClang::GetIntegralTemplateArgument` for this and thus currently only supports integral non-type template parameters. Types like float/double are not supported yet. rdar://144395216
58 lines
2.4 KiB
Python
58 lines
2.4 KiB
Python
"""
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Test that the type of arguments to C++ template classes that have variadic
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parameters can be enumerated.
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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 TemplatePackArgsTestCase(TestBase):
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def test_template_argument_pack(self):
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self.build()
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(target, _, thread, _) = lldbutil.run_to_source_breakpoint(
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self, "breakpoint here", lldb.SBFileSpec("main.cpp"), exe_name="a.out"
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)
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frame = thread.GetSelectedFrame()
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empty_pack = frame.FindVariable("emptyPack")
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self.assertTrue(
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empty_pack.IsValid(), "make sure we find the emptyPack variable"
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)
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only_pack = frame.FindVariable("onlyPack")
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self.assertTrue(only_pack.IsValid(), "make sure we find the onlyPack variable")
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self.assertEqual(only_pack.GetType().GetNumberOfTemplateArguments(), 4)
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self.assertEqual(
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only_pack.GetType().GetTemplateArgumentType(0).GetName(), "int"
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)
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self.assertEqual(
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only_pack.GetType().GetTemplateArgumentType(1).GetName(), "char"
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)
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self.assertEqual(
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only_pack.GetType().GetTemplateArgumentType(2).GetName(), "double"
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)
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nested_template = only_pack.GetType().GetTemplateArgumentType(3)
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self.assertEqual(nested_template.GetName(), "D<int, int, bool>")
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self.assertEqual(nested_template.GetNumberOfTemplateArguments(), 3)
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self.assertEqual(nested_template.GetTemplateArgumentType(0).GetName(), "int")
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self.assertEqual(nested_template.GetTemplateArgumentType(1).GetName(), "int")
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self.assertEqual(nested_template.GetTemplateArgumentType(2).GetName(), "bool")
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my_c = frame.FindVariable("myC")
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self.assertTrue(my_c.IsValid(), "make sure we find the myC variable")
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# Out of bounds index.
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self.assertFalse(my_c.GetType().GetTemplateArgumentValue(target, 3))
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# Out of bounds index.
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template_param_value = my_c.GetType().GetTemplateArgumentValue(target, 1)
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self.assertEqual(template_param_value.GetTypeName(), "int")
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self.assertEqual(template_param_value.GetValueAsSigned(), 16)
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template_param_value = my_c.GetType().GetTemplateArgumentValue(target, 2)
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self.assertEqual(template_param_value.GetTypeName(), "int")
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self.assertEqual(template_param_value.GetValueAsSigned(), 32)
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