""" Tests const static data members as specified by C++11 [class.static.data]p3. """ import lldb from lldbsuite.test.decorators import * from lldbsuite.test.lldbtest import * from lldbsuite.test import lldbutil class TestCase(TestBase): def test(self): self.build() lldbutil.run_to_source_breakpoint( self, "// break here", lldb.SBFileSpec("main.cpp") ) # Test using a simple const static integer member. self.expect_expr("A::int_val", result_value="1") # Try accessing the int member via some expressions that still produce # an lvalue. self.expect_expr("a.int_val", result_value="1") self.expect_expr("(A::int_val)", result_value="1") self.expect_expr("+A::int_val", result_value="1") self.expect_expr("1,A::int_val", result_value="1") self.expect_expr("true ? A::int_val : A::int_val", result_value="1") # Test a simple integer member that was also defined in a namespace # scope and has an address. self.expect_expr("A::int_val_with_address", result_value="2") # Test a bool member. self.expect_expr("A::bool_val", result_value="true") # Test that minimum and maximum values for each data type are right. self.expect_expr("A::char_max == char_max", result_value="true") self.expect_expr("A::schar_max == schar_max", result_value="true") self.expect_expr("A::uchar_max == uchar_max", result_value="true") self.expect_expr("A::int_max == int_max", result_value="true") self.expect_expr("A::uint_max == uint_max", result_value="true") self.expect_expr("A::long_max == long_max", result_value="true") self.expect_expr("A::ulong_max == ulong_max", result_value="true") self.expect_expr("A::longlong_max == longlong_max", result_value="true") self.expect_expr("A::ulonglong_max == ulonglong_max", result_value="true") self.expect_expr("A::wchar_max == wchar_max", result_value="true") self.expect_expr("A::char_min == char_min", result_value="true") self.expect_expr("A::schar_min == schar_min", result_value="true") self.expect_expr("A::uchar_min == uchar_min", result_value="true") self.expect_expr("A::int_min == int_min", result_value="true") self.expect_expr("A::uint_min == uint_min", result_value="true") self.expect_expr("A::long_min == long_min", result_value="true") self.expect_expr("A::ulong_min == ulong_min", result_value="true") self.expect_expr("A::longlong_min == longlong_min", result_value="true") self.expect_expr("A::ulonglong_min == ulonglong_min", result_value="true") self.expect_expr("A::wchar_min == wchar_min", result_value="true") # Test an unscoped enum. self.expect_expr("A::enum_val", result_value="enum_case2") # Test an unscoped enum with bool as the underlying type. self.expect_expr("A::enum_bool_val", result_value="enum_bool_case1") # Test a scoped enum. self.expect_expr("A::scoped_enum_val", result_value="scoped_enum_case2") # Test an scoped enum with a value that isn't an enumerator. self.expect_expr( "A::not_enumerator_scoped_enum_val", result_value="scoped_enum_case1 | 0x4" ) # This time with more than one enum value plus the extra. self.expect_expr( "A::not_enumerator_scoped_enum_val_2", result_value="scoped_enum_case1 | scoped_enum_case2 | 0x4", ) # Test an enum with fixed underlying type. self.expect_expr("A::scoped_char_enum_val", result_value="case2") self.expect_expr("A::scoped_ll_enum_val_neg", result_value="case0") self.expect_expr("A::scoped_ll_enum_val", result_value="case2") # Test taking address. if lldbplatformutil.getPlatform() == "windows": # On Windows data members without the out-of-class definitions still have # valid adresses and the following expression works fine. self.expect_expr("const int *i = &A::int_val; *i", result_value="1") else: # On other platforms (Linux, macos) data members without the out-of-class # definitions don't have valid addresses and the following code produces # a linker error. self.expect( "expr const int *i = &A::int_val; *i", error=True, substrs=["Couldn't look up symbols:"], ) # This should work on all platforms. self.expect_expr( "const int *i = &A::int_val_with_address; *i", result_value="2" ) # Printing the whole type takes a slightly different code path. Check that # it does not crash. self.expect("image lookup -t A") # dsymutil strips the debug info for classes that only have const static # data members without locations. @expectedFailureAll(debug_info=["dsym"], dwarf_version=["<", "5"]) def test_class_with_only_const_static(self): self.build() lldbutil.run_to_source_breakpoint( self, "// break here", lldb.SBFileSpec("main.cpp") ) self.expect_expr("ClassWithOnlyConstStatic::member", result_value="3") def check_global_var(self, name: str, expect_type, expect_val): var_list = self.target().FindGlobalVariables(name, lldb.UINT32_MAX) self.assertGreaterEqual(len(var_list), 1) varobj = var_list[0] self.assertEqual(varobj.type.name, expect_type) self.assertEqual(varobj.value, expect_val) def check_inline_static_members(self, flags): self.build(dictionary={"CXXFLAGS_EXTRAS": flags}) lldbutil.run_to_source_breakpoint( self, "// break here", lldb.SBFileSpec("main.cpp") ) self.check_global_var("A::int_val", "const int", "1") self.check_global_var("A::int_val_with_address", "const int", "2") self.check_global_var("A::inline_int_val", "const int", "3") self.check_global_var("A::bool_val", "const bool", "true") self.check_global_var("A::enum_val", "Enum", "enum_case2") self.check_global_var("A::enum_bool_val", "EnumBool", "enum_bool_case1") self.check_global_var("A::scoped_enum_val", "ScopedEnum", "scoped_enum_case2") self.check_global_var("ClassWithOnlyConstStatic::member", "const int", "3") self.check_global_var("ClassWithConstexprs::member", "const int", "2") self.check_global_var("ClassWithConstexprs::enum_val", "Enum", "enum_case2") self.check_global_var( "ClassWithConstexprs::scoped_enum_val", "ScopedEnum", "scoped_enum_case2" ) # Fails on Windows for unknown reasons. @skipIfWindows # On linux this passes due to the manual index @expectedFailureDarwin(debug_info=no_match(["dsym"])) @skipIf(debug_info=["dsym"], compiler=["clang"], compiler_version=["<", "19.0"]) def test_inline_static_members_dwarf5(self): self.check_inline_static_members("-gdwarf-5") # On linux this passes due to the manual index @expectedFailureDarwin def test_inline_static_members_dwarf4(self): self.check_inline_static_members("-gdwarf-4") # With older versions of Clang, LLDB fails to evaluate classes with only # constexpr members when dsymutil is enabled @expectedFailureAll( debug_info=["dsym"], compiler=["clang"], compiler_version=["<", "14.0"] ) def test_class_with_only_constexpr_static(self): self.build() lldbutil.run_to_source_breakpoint( self, "// break here", lldb.SBFileSpec("main.cpp") ) # Test `constexpr static`. self.expect_expr("ClassWithConstexprs::member", result_value="2") self.expect_expr("ClassWithConstexprs::enum_val", result_value="enum_case2") self.expect_expr( "ClassWithConstexprs::scoped_enum_val", result_value="scoped_enum_case2" ) # Test an aliased enum with fixed underlying type. self.expect_expr( "ClassWithEnumAlias::enum_alias", result_value="scoped_enum_case2" ) self.expect_expr( "ClassWithEnumAlias::enum_alias_alias", result_value="scoped_enum_case1" ) def check_shadowed_static_inline_members(self, flags): """Tests that the expression evaluator and SBAPI can both correctly determine the requested inline static variable in the presence of multiple variables of the same name.""" self.build(dictionary={"CXXFLAGS_EXTRAS": flags}) lldbutil.run_to_name_breakpoint(self, "bar") self.check_global_var("ns::Foo::mem", "const int", "10") self.expect_expr("mem", result_value="10") self.expect_expr("Foo::mem", result_value="10") self.expect_expr("ns::Foo::mem", result_value="10") self.expect_expr("::Foo::mem", result_value="-29") # Fails on Windows for unknown reasons. @skipIfWindows # On linux this passes due to the manual index @expectedFailureDarwin(debug_info=no_match(["dsym"])) @skipIf(debug_info=["dsym"], compiler=["clang"], compiler_version=["<", "19.0"]) def test_shadowed_static_inline_members_dwarf5(self): self.check_shadowed_static_inline_members("-gdwarf-5") # On linux this passes due to the manual index @expectedFailureDarwin def test_shadowed_static_inline_members_dwarf4(self): self.check_shadowed_static_inline_members("-gdwarf-4") @expectedFailureAll(bugnumber="target var doesn't honour global namespace") def test_shadowed_static_inline_members_xfail(self): self.build() lldbutil.run_to_name_breakpoint(self, "bar") self.check_global_var("::Foo::mem", "const int", "-29")