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"""
Test expression command options.
Test cases:
o test_expr_options:
Test expression command options.
"""
from __future__ import print_function
import os
import time
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.lldbtest import *
class ExprOptionsTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
self.main_source = "main.cpp"
self.main_source_spec = lldb.SBFileSpec(self.main_source)
self.line = line_number('main.cpp', '// breakpoint_in_main')
self.exe = os.path.join(os.getcwd(), "a.out")
def test_expr_options(self):
"""These expression command options should work as expected."""
self.build()
# Set debugger into synchronous mode
self.dbg.SetAsync(False)
# Create a target by the debugger.
target = self.dbg.CreateTarget(self.exe)
self.assertTrue(target, VALID_TARGET)
# Set breakpoints inside main.
breakpoint = target.BreakpointCreateBySourceRegex(
'// breakpoint_in_main', self.main_source_spec)
self.assertTrue(breakpoint)
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple(
None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
threads = lldbutil.get_threads_stopped_at_breakpoint(
process, breakpoint)
self.assertEqual(len(threads), 1)
frame = threads[0].GetFrameAtIndex(0)
options = lldb.SBExpressionOptions()
# test --language on C++ expression using the SB API's
# Make sure we can evaluate a C++11 expression.
val = frame.EvaluateExpression('foo != nullptr')
self.assertTrue(val.IsValid())
self.assertTrue(val.GetError().Success())
self.DebugSBValue(val)
# Make sure it still works if language is set to C++11:
options.SetLanguage(lldb.eLanguageTypeC_plus_plus_11)
val = frame.EvaluateExpression('foo != nullptr', options)
self.assertTrue(val.IsValid())
self.assertTrue(val.GetError().Success())
self.DebugSBValue(val)
# Make sure it fails if language is set to C:
options.SetLanguage(lldb.eLanguageTypeC)
val = frame.EvaluateExpression('foo != nullptr', options)
self.assertTrue(val.IsValid())
self.assertFalse(val.GetError().Success())
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