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f61768107e
This implements a limited exception mechanism for find_package() via the UNWIND_INCLUDE keyword. When package discovery via find_package(UNWIND_INCLUDE) fails the StateSnapshot is updated to an UNWINDING state. In this state further calls to find_package() and include() are forbidden. While in the UNWINDING state, the include() command immediately calls SetReturnInvoked() whenever it is reached. The UNWINDING state is reset when a parent call to find_package() is reached. Fixes: #26897
21 lines
384 B
CMake
21 lines
384 B
CMake
cmake_policy(SET CMP0140 NEW)
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function(f)
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find_package(foo UNWIND_INCLUDE)
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endfunction()
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function(g)
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set(FUNC_CALLED true)
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set(PrimaryUnwind_FOUND false)
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return(PROPAGATE func_called PrimaryUnwind_FOUND)
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endfunction()
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set(RunCMake_TEST_FAILED "Failed to observe side effects of function() calls during unwind")
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f()
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g()
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if(FUNC_CALLED)
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set(RunCMake_TEST_FAILED)
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endif()
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