| """ | |
| Tests that rvalue references are supported in C++ | |
| """ | |
| import lldb | |
| from lldbsuite.test.decorators import * | |
| from lldbsuite.test.lldbtest import * | |
| from lldbsuite.test import lldbutil | |
| @skipIfWasm # no expression evaluation | |
| class RvalueReferencesTestCase(TestBase): | |
| # rdar://problem/11479676 | |
| @expectedFailureAll( | |
| compiler="icc", | |
| bugnumber="ICC (13.1, 14-beta) do not emit DW_TAG_rvalue_reference_type.", | |
| ) | |
| def test_with_run_command(self): | |
| """Test that rvalues are supported in the C++ expression parser""" | |
| self.build() | |
| self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET) | |
| self.set_breakpoint(line_number("main.cpp", "// breakpoint 1")) | |
| self.set_breakpoint(line_number("main.cpp", "// breakpoint 2")) | |
| self.runCmd("process launch", RUN_SUCCEEDED) | |
| # Note that clang as of r187480 doesn't emit DW_TAG_const_type, unlike gcc 4.8.1 | |
| # With gcc 4.8.1, lldb reports the type as (int &&const) | |
| self.expect( | |
| "frame variable i", startstr="(int &&", substrs=["i = 0x", "&i = 3"] | |
| ) | |
| self.expect("expression -- i", startstr="(int) ", substrs=["3"]) | |
| self.expect("breakpoint delete 1") | |
| self.runCmd("process continue") | |
| self.expect("expression -- foo(2)") | |
| self.expect("expression -- int &&j = 3; foo(j)", error=True) | |
| self.expect("expression -- int &&k = 6; k", startstr="(int) $1 = 6") | |
| def set_breakpoint(self, line): | |
| lldbutil.run_break_set_by_file_and_line( | |
| self, "main.cpp", line, num_expected_locations=1, loc_exact=True | |
| ) |