lldb/test/API/lang/cpp/crtp/TestCppCRTP.py

   1 """
   2 A test for the curiously recurring template pattern (or CRTP).
   3
   4 Note that the derived class is referenced directly from the parent class in the
   5 test. If this fails then there is a good chance that LLDB tried to eagerly
   6 resolve the definition of the derived class while constructing the base class.
   7 """
   8
   9 import lldb
  10 from lldbsuite.test.decorators import *
  11 from lldbsuite.test.lldbtest import *
  12 from lldbsuite.test import lldbutil
  13
  14
  15 class TestCase(TestBase):
  16     @no_debug_info_test
  17     def test(self):
  18         self.build()
  19         self.createTestTarget()
  20
  21         # Try using the class in the expression evaluator.
  22         self.expect_expr(
  23             "derived",
  24             result_type="Derived",
  25             result_children=[
  26                 ValueCheck(name="Base<Derived>"),
  27                 ValueCheck(name="member", value="0"),
  28             ],
  29         )
  30
  31         # Try accessing the members of the class and base class.
  32         self.expect_expr("derived.pointer", result_type="Derived *")
  33         self.expect_expr("derived.member", result_type="int", result_value="0")