| """ |
| Test calling an overriden method. |
| |
| Note: |
| This verifies that LLDB is correctly building the method overrides table. |
| If this table is not built correctly then calls to overridden methods in |
| derived classes may generate references to non-existant vtable entries, |
| as the compiler treats the overridden method as a totally new virtual |
| method definition. |
| <rdar://problem/14205774> |
| |
| """ |
| |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| class ExprCommandCallOverriddenMethod(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line number to break for main.c. |
| self.line = line_number('main.cpp', '// Set breakpoint here') |
| |
| @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr21765") |
| def test(self): |
| """Test calls to overridden methods in derived classes.""" |
| self.build() |
| |
| # Set breakpoint in main and run exe |
| self.runCmd("file " + self.getBuildArtifact("a.out"), |
| CURRENT_EXECUTABLE_SET) |
| lldbutil.run_break_set_by_file_and_line( |
| self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True) |
| |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # Test call to method in base class (this should always work as the base |
| # class method is never an override). |
| self.expect("expr b->foo()") |
| |
| # Test call to overridden method in derived class (this will fail if the |
| # overrides table is not correctly set up, as Derived::foo will be assigned |
| # a vtable entry that does not exist in the compiled program). |
| self.expect("expr d.foo()") |
