"""
Tests using a class type that originated from a member function evaluation
with the same class type outside a member function.
When evaluating expressions in a class, LLDB modifies the type of the current
class by injecting a "$__lldb_expr" member function into the class. This
function should not cause the type to become incompatible with its original
definition without the "$__lldb_expr" member.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestCase(TestBase):
@no_debug_info_test
def test(self):
self.build()
lldbutil.run_to_source_breakpoint(
self, "// break in member function", lldb.SBFileSpec("main.cpp")
)
# Evaluate an expression in a member function. Store the type of the
# 'this' pointer in a persistent variable.
self.expect_expr("A $p = *this; $p", result_type="A")
breakpoint = self.target().BreakpointCreateBySourceRegex(
"// break in main", lldb.SBFileSpec("main.cpp")
)
self.assertNotEqual(breakpoint.GetNumResolvedLocations(), 0)
threads = lldbutil.continue_to_breakpoint(self.process(), breakpoint)
self.assertEqual(len(threads), 1)
# Evaluate expressions in the main function. Use the persistent type
# of "A" that came from an evaluation in a member function with a
# normal "A" type and make sure that LLDB can still evaluate
# expressions that reference both types at the same time.
self.expect_expr("$p.i + a.i", result_type="int", result_value="2")
self.expect_expr("a.i + $p.i", result_type="int", result_value="2")
self.expect_expr("a = $p; a.i", result_type="int", result_value="1")