9e6ea387c8
This relands https://github.com/llvm/llvm-project/pull/95963. It had to be reverted because the `TestEarlyProcessLaunch.py` test was failing on the incremental macOS bots. The test failed because it was relying on expression log output from the ObjC introspection routines (but was the expression was called from a C++ context). The relanded patch simply ensures that the test runs the expressions as `ObjC` expressions. When LLDB isn't able to find a `clang::Decl` in response to a `FindExternalVisibleDeclsByName`, it will fall-back to looking into the Objective-C runtime for that decl. This ends up doing a lot of work which isn't necessary when we're debugging a C++ program. This patch makes the ObjC lookup conditional on the language that the ExpressionParser deduced (which can be explicitly set using the `expr --language` option or is set implicitly if we're stopped in an ObjC frame or a C++ frame without debug-info). rdar://96236519
26 lines
788 B
Python
26 lines
788 B
Python
"""
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Test that the the expression parser enables ObjC support
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when stopped in a C++ frame without debug-info.
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"""
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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 TestObjCFromCppFramesWithoutDebugInfo(TestBase):
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def test(self):
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self.build()
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(_, process, _, _) = lldbutil.run_to_name_breakpoint(self, "main")
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self.assertState(process.GetState(), lldb.eStateStopped)
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# Tests that we can use builtin Objective-C identifiers.
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self.expect("expr id", error=False)
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# Tests that we can lookup Objective-C decls in the ObjC runtime plugin.
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self.expect_expr(
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"NSString *c; c == nullptr", result_value="true", result_type="bool"
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)
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