dd060bdede
With this commit, we also hide the implementation details of `std::invoke`. To do so, the `LibCXXFrameRecognizer` got a couple more regular expressions. The regular expression passed into `AddRecognizer` became problematic, as it was evaluated on the demangled name. Those names also included result types for C++ symbols. For `std::__invoke` the return type is a huge `decltype(...)`, making the regular expresison really hard to write. Instead, I added support to `AddRecognizer` for matching on the demangled names without result type and argument types. By hiding the implementation details of `invoke`, also the back traces for `std::function` become even nicer, because `std::function` is using `__invoke` internally. Co-authored-by: Adrian Prantl <aprantl@apple.com>
45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class LibCxxStdFunctionRecognizerTestCase(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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@add_test_categories(["libc++"])
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def test_frame_recognizer(self):
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"""Test that implementation details of `std::invoke` are hidden"""
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self.build()
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(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
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self, "break here", lldb.SBFileSpec("main.cpp")
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)
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stop_cnt = 0
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while process.GetState() != lldb.eStateExited:
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stop_cnt += 1
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self.assertTrue(
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any(
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f in thread.GetFrameAtIndex(0).GetFunctionName()
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for f in ["consume_number", "add", "Callable"]
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)
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)
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# Skip all hidden frames
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frame_id = 1
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while (
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frame_id < thread.GetNumFrames()
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and thread.GetFrameAtIndex(frame_id).IsHidden()
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):
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frame_id = frame_id + 1
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# Expect `std::invoke` to be the direct parent
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self.assertIn(
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"::invoke", thread.GetFrameAtIndex(frame_id).GetFunctionName()
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)
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# And right above that, there should be the `main` frame
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self.assertIn(
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"main", thread.GetFrameAtIndex(frame_id + 1).GetFunctionName()
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)
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process.Continue()
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self.assertEqual(stop_cnt, 4)
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