| """ | |
| Test that an alias can reference other aliases without crashing. | |
| """ | |
| import lldb | |
| from lldbsuite.test.decorators import skipIfWasm | |
| from lldbsuite.test.lldbtest import * | |
| import lldbsuite.test.lldbutil as lldbutil | |
| class NestedAliasTestCase(TestBase): | |
| NO_DEBUG_INFO_TESTCASE = True | |
| def setUp(self): | |
| # Call super's setUp(). | |
| TestBase.setUp(self) | |
| # Find the line number to break inside main(). | |
| self.line = line_number("main.cpp", "// break here") | |
| @skipIfWasm # the test reads memory at the address an expression computes | |
| def test_nested_alias(self): | |
| """Test that an alias can reference other aliases without crashing.""" | |
| self.build() | |
| exe = self.getBuildArtifact("a.out") | |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) | |
| # Break in main() after the variables are assigned values. | |
| 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) | |
| # The stop reason of the thread should be breakpoint. | |
| self.expect( | |
| "thread list", | |
| STOPPED_DUE_TO_BREAKPOINT, | |
| substrs=["stopped", "stop reason = breakpoint"], | |
| ) | |
| # The breakpoint should have a hit count of 1. | |
| lldbutil.check_breakpoint(self, bpno=1, expected_hit_count=1) | |
| # This is the function to remove the custom aliases in order to have a | |
| # clean slate for the next test case. | |
| def cleanup(): | |
| self.runCmd("command unalias read", check=False) | |
| self.runCmd("command unalias rd", check=False) | |
| self.runCmd("command unalias fo", check=False) | |
| self.runCmd("command unalias foself", check=False) | |
| self.runCmd("command unalias add_two", check=False) | |
| self.runCmd("command unalias two", check=False) | |
| # Execute the cleanup function during test case tear down. | |
| self.addTearDownHook(cleanup) | |
| self.runCmd("command alias read memory read -f A") | |
| self.runCmd("command alias rd read -c 3") | |
| self.expect( | |
| "memory read -f A -c 3 `&my_ptr[0]`", | |
| substrs=["deadbeef", "main.cpp:", "feedbeef"], | |
| ) | |
| self.expect("rd `&my_ptr[0]`", substrs=["deadbeef", "main.cpp:", "feedbeef"]) | |
| self.expect( | |
| "memory read -f A -c 3 `&my_ptr[0]`", substrs=["deadfeed"], matching=False | |
| ) | |
| self.expect("rd `&my_ptr[0]`", substrs=["deadfeed"], matching=False) | |
| self.runCmd("command alias fo frame variable -O --") | |
| self.runCmd("command alias foself fo self") | |
| self.expect( | |
| "help foself", | |
| substrs=["--show-all-children", "--raw-output"], | |
| matching=False, | |
| ) | |
| self.expect( | |
| "help foself", | |
| substrs=["Show variables for the current", "stack frame."], | |
| matching=True, | |
| ) | |
| # Check that foself was resolved and is now independent of 'fo'. | |
| self.runCmd("command unalias fo") | |
| self.expect( | |
| "help foself", | |
| substrs=["Show variables for the current", "stack frame."], | |
| matching=True, | |
| ) | |
| # Check that aliases can be created for raw input commands. | |
| self.expect("command alias two expr -- 2") | |
| self.expect("command alias add_two two +") | |
| self.expect("add_two 3", patterns=[" = 5$"]) | |
| # Check that aliases to aliases to raw input commands work the second | |
| # and subsequent times. | |
| self.expect("add_two 3", patterns=[" = 5$"]) | |
| self.expect("add_two 3", patterns=[" = 5$"]) |