009d110de4
* Use the frame's context (instead of just the target's) when evaluating, so that the language of the frame's CU can be used to select the compiler and/or compiler options to use when parsing the expression. This allows for modules built with mixed languages to be parsed in the context of their frame. * Add all C and C++ language variants when determining the language options to set. * Enable C++ language options when language is C or ObjC as a workaround since the expression parser uses features of C++ to capture values. * Enable ObjC language options when language is C++ as a workaround for ObjC requirements. * Disable C++11 language options when language is C++03. * Add test TestMixedLanguages.py to check that the language being used for evaluation is that of the frame. * Fix test TestExprOptions.py to check for C++11 instead of C++ since C++ has to be enabled for C, and remove redundant expr --language test for ObjC. * Fix TestPersistentPtrUpdate.py to not require C++11 in C. Reviewed by: clayborg, spyffe, jingham Subscribers: lldb-commits Differential Revision: http://reviews.llvm.org/D11102 llvm-svn: 246829
80 lines
2.5 KiB
Python
80 lines
2.5 KiB
Python
"""
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Test expression command options.
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Test cases:
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o test_expr_options:
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Test expression command options.
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"""
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import os, time
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import unittest2
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import lldb
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import lldbutil
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from lldbtest import *
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class ExprOptionsTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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self.main_source = "main.cpp"
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self.main_source_spec = lldb.SBFileSpec (self.main_source)
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self.line = line_number('main.cpp', '// breakpoint_in_main')
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self.exe = os.path.join(os.getcwd(), "a.out")
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def test_expr_options(self):
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"""These expression command options should work as expected."""
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self.buildDefault()
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# Set debugger into synchronous mode
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self.dbg.SetAsync(False)
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(self.exe)
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self.assertTrue(target, VALID_TARGET)
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# Set breakpoints inside main.
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breakpoint = target.BreakpointCreateBySourceRegex('// breakpoint_in_main', self.main_source_spec)
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self.assertTrue(breakpoint)
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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threads = lldbutil.get_threads_stopped_at_breakpoint(process, breakpoint)
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self.assertEqual(len(threads), 1)
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frame = threads[0].GetFrameAtIndex(0)
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options = lldb.SBExpressionOptions()
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# test --language on C++ expression using the SB API's
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# Make sure we can evaluate 'ns::func'.
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val = frame.EvaluateExpression('foo != nullptr')
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self.assertTrue(val.IsValid())
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self.assertTrue(val.GetError().Success())
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self.DebugSBValue(val)
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# Make sure it still works if language is set to C++11:
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options.SetLanguage(lldb.eLanguageTypeC_plus_plus_11)
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val = frame.EvaluateExpression('foo != nullptr', options)
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self.assertTrue(val.IsValid())
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self.assertTrue(val.GetError().Success())
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self.DebugSBValue(val)
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# Make sure it fails if language is set to C:
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options.SetLanguage(lldb.eLanguageTypeC)
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val = frame.EvaluateExpression('foo != nullptr', options)
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self.assertTrue(val.IsValid())
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self.assertFalse(val.GetError().Success())
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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