1""" 2Tests that rvalue references are supported in C++ 3""" 4 5import lldb 6from lldbsuite.test.decorators import * 7from lldbsuite.test.lldbtest import * 8from lldbsuite.test import lldbutil 9 10 11class RvalueReferencesTestCase(TestBase): 12 # rdar://problem/11479676 13 @expectedFailureAll( 14 compiler="icc", 15 bugnumber="ICC (13.1, 14-beta) do not emit DW_TAG_rvalue_reference_type.", 16 ) 17 def test_with_run_command(self): 18 """Test that rvalues are supported in the C++ expression parser""" 19 self.build() 20 self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET) 21 22 self.set_breakpoint(line_number("main.cpp", "// breakpoint 1")) 23 self.set_breakpoint(line_number("main.cpp", "// breakpoint 2")) 24 25 self.runCmd("process launch", RUN_SUCCEEDED) 26 27 # Note that clang as of r187480 doesn't emit DW_TAG_const_type, unlike gcc 4.8.1 28 # With gcc 4.8.1, lldb reports the type as (int &&const) 29 self.expect( 30 "frame variable i", startstr="(int &&", substrs=["i = 0x", "&i = 3"] 31 ) 32 33 self.expect("expression -- i", startstr="(int) ", substrs=["3"]) 34 35 self.expect("breakpoint delete 1") 36 37 self.runCmd("process continue") 38 39 self.expect("expression -- foo(2)") 40 41 self.expect("expression -- int &&j = 3; foo(j)", error=True) 42 43 self.expect("expression -- int &&k = 6; k", startstr="(int) $1 = 6") 44 45 def set_breakpoint(self, line): 46 lldbutil.run_break_set_by_file_and_line( 47 self, "main.cpp", line, num_expected_locations=1, loc_exact=True 48 ) 49