| """ |
| Test that the type of arguments to C++ template classes that have variadic |
| parameters can be enumerated. |
| """ |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class TemplatePackArgsTestCase(TestBase): |
| def test_template_argument_pack(self): |
| self.build() |
| (_, _, thread, _) = lldbutil.run_to_source_breakpoint( |
| self, "breakpoint here", lldb.SBFileSpec("main.cpp"), exe_name="a.out" |
| ) |
| frame = thread.GetSelectedFrame() |
| |
| empty_pack = frame.FindVariable("emptyPack") |
| self.assertTrue( |
| empty_pack.IsValid(), "make sure we find the emptyPack variable" |
| ) |
| |
| only_pack = frame.FindVariable("onlyPack") |
| self.assertTrue(only_pack.IsValid(), "make sure we find the onlyPack variable") |
| self.assertEqual(only_pack.GetType().GetNumberOfTemplateArguments(), 4) |
| self.assertEqual( |
| only_pack.GetType().GetTemplateArgumentType(0).GetName(), "int" |
| ) |
| self.assertEqual( |
| only_pack.GetType().GetTemplateArgumentType(1).GetName(), "char" |
| ) |
| self.assertEqual( |
| only_pack.GetType().GetTemplateArgumentType(2).GetName(), "double" |
| ) |
| # Access the C<double, 42> template parameter. |
| nested_template = only_pack.GetType().GetTemplateArgumentType(3) |
| self.assertEqual(nested_template.GetName(), "D<int, int, bool>") |
| self.assertEqual(nested_template.GetNumberOfTemplateArguments(), 3) |
| self.assertEqual(nested_template.GetTemplateArgumentType(0).GetName(), "int") |
| self.assertEqual(nested_template.GetTemplateArgumentType(1).GetName(), "int") |
| self.assertEqual(nested_template.GetTemplateArgumentType(2).GetName(), "bool") |
