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"""Test that forward declaration of a data structure gets resolved correctly."""
import lldb
from lldbsuite.test.lldbtest import *
from lldbsuite.test.decorators import *
import lldbsuite.test.lldbutil as lldbutil
class ForwardDeclarationTestCase(TestBase):
def do_test(self, dictionary=None):
"""Display *bar_ptr when stopped on a function with forward declaration of struct bar."""
self.build(dictionary=dictionary)
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Break inside the foo function which takes a bar_ptr argument.
lldbutil.run_break_set_by_symbol(
self, "foo", num_expected_locations=1, sym_exact=True
)
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect(
"thread list",
STOPPED_DUE_TO_BREAKPOINT,
substrs=["stopped", "stop reason = breakpoint"],
)
# The breakpoint should have a hit count of 1.
lldbutil.check_breakpoint(self, bpno=1, expected_hit_count=1)
# This should display correctly.
# Note that the member fields of a = 1 and b = 2 is by design.
self.expect(
"frame variable --show-types *bar_ptr",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["(bar) *bar_ptr = ", "(int) a = 1", "(int) b = 2"],
)
# And so should this.
self.expect(
"expression --show-types -- *bar_ptr",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=["(bar)", "(int) a = 1", "(int) b = 2"],
)
def test(self):
self.do_test()
@no_debug_info_test
@skipIfDarwin
@skipIf(compiler=no_match("clang"))
@skipIf(compiler_version=["<", "8.0"])
@expectedFailureAll(oslist=["windows"])
def test_debug_names(self):
"""Test that we are able to find complete types when using DWARF v5
accelerator tables"""
self.do_test(dict(CFLAGS_EXTRAS="-gdwarf-5 -gpubnames"))
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