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"""
Test expression command options.
Test cases:
o test_expr_options:
Test expression command options.
"""
import os, time
import unittest2
import lldb
import lldbutil
from 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")
@skipUnlessDarwin
def test_expr_options_objc_cpp(self):
self.expr_options(test_objc = True, test_cpp = True)
@skipIfDarwin # Already covered by test_expr_options_objc_cpp
def test_expr_options_cpp(self):
self.expr_options(test_objc = False, test_cpp = True)
def expr_options(self, test_objc, test_cpp):
"""These expression command options should work as expected."""
self.buildDefault()
# 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()
if test_objc:
# -- test --language on ObjC builtin type using the SB API's --
# Make sure we can evaluate the ObjC builtin type 'id':
val = frame.EvaluateExpression('id my_id = 0; my_id')
self.assertTrue(val.IsValid())
self.assertTrue(val.GetError().Success())
self.assertEqual(val.GetValueAsUnsigned(0), 0)
self.DebugSBValue(val)
# Make sure it still works if language is set to ObjC:
options.SetLanguage(lldb.eLanguageTypeObjC_plus_plus)
val = frame.EvaluateExpression('id my_id = 0; my_id', options)
self.assertTrue(val.IsValid())
self.assertTrue(val.GetError().Success())
self.assertEqual(val.GetValueAsUnsigned(0), 0)
self.DebugSBValue(val)
# Make sure it fails if language is set to C:
options.SetLanguage(lldb.eLanguageTypeC)
val = frame.EvaluateExpression('id my_id = 0; my_id', options)
self.assertTrue(val.IsValid())
self.assertFalse(val.GetError().Success())
if test_cpp:
# -- test --language on C++ expression using the SB API's --
# Make sure we can evaluate 'ns::func'.
val = frame.EvaluateExpression('ns::func')
self.assertTrue(val.IsValid())
self.assertTrue(val.GetError().Success())
self.DebugSBValue(val)
# Make sure it still works if language is set to C++:
options.SetLanguage(lldb.eLanguageTypeC_plus_plus)
val = frame.EvaluateExpression('ns::func', 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('ns::func', options)
self.assertTrue(val.IsValid())
self.assertFalse(val.GetError().Success())
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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