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   1 """
   2 This is a test to ensure that both lldb is reconstructing the right
   3 calling convention for a CXXRecordDecl as represented by:
   4
   5    DW_CC_pass_by_reference
   6    DW_CC_pass_by_value
   7
   8 and to also make sure that the ASTImporter is copying over this
   9 setting when importing the CXXRecordDecl via setArgPassingRestrictions.
  10 """
  11
  12 import lldb
  13 from lldbsuite.test.decorators import *
  14 from lldbsuite.test.lldbtest import *
  15 from lldbsuite.test import lldbutil
  16
  17
  18 class TestArgumentPassingRestrictions(TestBase):
  19
  20   mydir = TestBase.compute_mydir(__file__)
  21
  22   @skipIf(compiler="clang", compiler_version=['<', '7.0'])
  23   def test_argument_passing_restrictions(self):
  24     self.build()
  25
  26     lldbutil.run_to_source_breakpoint(self, '// break here',
  27             lldb.SBFileSpec("main.cpp"))
  28
  29     self.expect("expr returnPassByRef()",
  30             substrs=['(PassByRef)', '= 11223344'])
  31
  32     self.expect("expr takePassByRef(p)",
  33             substrs=['(int)', '= 42'])