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"""
Test that the expression parser accounts for the underlying type of bitfield
enums when looking for matching values.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestBitfieldEnum(TestBase):
# Prior to clang-19, clang's DWARF v2 is missing missing DW_AT_type which
# causes unsigned_max to appear as -1 instead of the "max" enumerator, whose
# value is 3. From 19 onward, DW_AT_type is added as long as strict DWARF
# is not enabled.
@skipIf(dwarf_version=["<", "3"], compiler="clang", compiler_version=["<", "19.0"])
def test_bitfield_enums(self):
self.build()
lldbutil.run_to_source_breakpoint(
self, "// break here", lldb.SBFileSpec("main.cpp", False)
)
self.expect_expr(
"bfs",
result_type="BitfieldStruct",
result_children=[
ValueCheck(name="signed_min", value="min"),
ValueCheck(name="signed_other", value="-1"),
ValueCheck(name="signed_max", value="max"),
ValueCheck(name="unsigned_min", value="min"),
ValueCheck(name="unsigned_other", value="1"),
ValueCheck(name="unsigned_max", value="max"),
],
)
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