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https://github.com/Kitware/CMake.git
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1730d208b5
Ensure that we're actually trying to rebuild libB when the public interface for libA changes. Without handling the swiftmodule dependency edge correctly, we would only get a linker error because libA didn't have the symbol that libB depended on. With the fix, we get a proper compiler error because ninja knows to rebuild the intermediate libB when the public interface of libA changes. This is more actionable.
58 lines
2.2 KiB
CMake
58 lines
2.2 KiB
CMake
include(RunCMake)
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if(RunCMake_GENERATOR STREQUAL Xcode)
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if(XCODE_BELOW_6_1)
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run_cmake(XcodeTooOld)
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endif()
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elseif(RunCMake_GENERATOR STREQUAL Ninja)
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if(CMAKE_Swift_COMPILER)
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if (CMAKE_SYSTEM_NAME MATCHES "Windows")
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run_cmake_with_options(Win32ExecutableDisallowed)
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else()
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run_cmake_with_options(Win32ExecutableIgnored)
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set(RunCMake_TEST_OPTIONS -DCMAKE_SYSTEM_NAME=Darwin)
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run_cmake(SwiftMultiArch)
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unset(RunCMake_TEST_OPTIONS)
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endif()
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# Test that a second build with no changes does nothing.
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block()
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run_cmake(NoWorkToDo)
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set(RunCMake_TEST_NO_CLEAN 1)
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set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/NoWorkToDo-build)
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set(RunCMake_TEST_OUTPUT_MERGE 1)
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run_cmake_command(NoWorkToDo-build ${CMAKE_COMMAND} --build .)
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run_cmake_command(NoWorkToDo-nowork ${CMAKE_COMMAND} --build . -- -d explain)
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endblock()
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# Test that intermediate static libraries are rebuilt when the public
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# interface of their dependency changes
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block()
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set(IncrementalSwift_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/IncrementalSwift-build)
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set(IncrementalSwift_TEST_NO_CLEAN 1)
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set(IncrementalSwift_TEST_OUTPUT_MERGE 1)
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# Since files are modified during test, the files are created in the cmake
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# file into the build directory
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run_cmake(IncrementalSwift)
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run_cmake_command(IncrementalSwift-first ${CMAKE_COMMAND} --build ${IncrementalSwift_TEST_BINARY_DIR})
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# Modify public interface of libA requiring rebuild of libB
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file(WRITE ${IncrementalSwift_TEST_BINARY_DIR}/a.swift
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"public func callA() -> Float { return 32.0 }\n")
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# Note: We still expect this to fail, but instead of failure at link time,
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# it should fail while re-compiling libB because the function changed
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run_cmake_command(IncrementalSwift-second ${CMAKE_COMMAND} --build ${IncrementalSwift_TEST_BINARY_DIR} -- -d explain)
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endblock()
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endif()
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elseif(RunCMake_GENERATOR STREQUAL "Ninja Multi-Config")
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if(CMAKE_Swift_COMPILER)
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set(RunCMake_TEST_OPTIONS "-DCMAKE_CONFIGURATION_TYPES=Debug\\;Release")
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run_cmake(SwiftSimple)
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unset(RunCMake_TEST_OPTIONS)
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endif()
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else()
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run_cmake(NotSupported)
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endif()
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