52 lines · python
1"""Test that lldb works correctly on compile units form different languages."""2 3 4import re5import lldb6from lldbsuite.test.lldbtest import *7 8 9class MixedLanguagesTestCase(TestBase):10 def test_language_of_frame(self):11 """Test that the language defaults to the language of the current frame."""12 self.build()13 exe = self.getBuildArtifact("a.out")14 self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)15 16 # Execute the cleanup function during test case tear down17 # to restore the frame format.18 def cleanup():19 self.runCmd(20 "settings set frame-format %s" % self.format_string, check=False21 )22 23 self.addTearDownHook(cleanup)24 self.runCmd("settings show frame-format")25 m = re.match(r'^frame-format \(format-string\) = "(.*)"$', self.res.GetOutput())26 self.assertTrue(m, "Bad settings string")27 self.format_string = m.group(1)28 29 # Change the default format to print the language.30 format_string = "frame #${frame.index}: ${frame.pc}{ ${module.file.basename}\\`${function.name}{${function.pc-offset}}}{, lang=${language}}\n"31 self.runCmd("settings set frame-format %s" % format_string)32 self.expect(33 "settings show frame-format",34 SETTING_MSG("frame-format"),35 substrs=[format_string],36 )37 38 # Run to BP at main (in main.c) and test that the language is C.39 self.runCmd("breakpoint set -n main")40 self.runCmd("run")41 self.expect("thread backtrace", substrs=["`main", "lang=c"])42 # Make sure evaluation of C++11 fails.43 self.expect("expr foo != nullptr", error=True, substrs=["error"])44 45 # Run to BP at foo (in foo.cpp) and test that the language is C++.46 self.runCmd("breakpoint set -n foo")47 self.runCmd("continue")48 self.expect("thread backtrace", substrs=["`::foo()", "lang=c++"])49 # Make sure we can evaluate an expression requiring C++1150 # (note: C++11 is enabled by default for C++).51 self.expect("expr foo != nullptr", patterns=["true"])52