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"""
Tests that rvalue references are supported in C++
"""
import lldb
from lldbtest import *
import lldbutil
class RvalueReferencesTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
@expectedFailureClang("rdar://problem/11479676")
@dsym_test
def test_with_dsym_and_run_command(self):
"""Test that rvalues are supported in the C++ expression parser"""
self.buildDsym()
self.static_method_commands()
#rdar://problem/11479676
@expectedFailureClang("rdar://problem/11479676 pr16762: Expression evaluation of an rvalue-reference does not show the correct type.")
@expectedFailureGcc("GCC (4.7) does not emit correct DWARF tags for rvalue-references")
@expectedFailureIcc("ICC (13.1, 14-beta) do not emit DW_TAG_rvalue_reference_type.")
@dwarf_test
def test_with_dwarf_and_run_command(self):
"""Test that rvalues are supported in the C++ expression parser"""
self.buildDwarf()
self.static_method_commands()
def setUp(self):
TestBase.setUp(self)
def set_breakpoint(self, line):
lldbutil.run_break_set_by_file_and_line (self, "main.cpp", line, num_expected_locations=1, loc_exact=True)
def static_method_commands(self):
"""Test that rvalues are supported in the C++ expression parser"""
self.runCmd("file 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")
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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