mirror of
https://github.com/Kitware/CMake.git
synced 2026-04-23 22:58:37 -05:00
Evan Wilde
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.
23 lines
855 B
CMake
23 lines
855 B
CMake
enable_language(Swift)
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# Write initial files to build directory
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# The files are generated into the build directory to avoid dirtying the source
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# directory. This is done because the source files are changed during the test
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# to ensure correct incremental build behavior.
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/a.swift
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"let number: Int = 32\n"
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"public func callA() -> Int { return number }\n")
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/b.swift
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"import A\n"
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"public func callB() -> Int { return callA() + 1 }\n")
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/exec.swift
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"import B\n"
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"print(callB())\n")
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add_library(A STATIC ${CMAKE_CURRENT_BINARY_DIR}/a.swift)
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add_library(B STATIC ${CMAKE_CURRENT_BINARY_DIR}/b.swift)
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target_link_libraries(B PRIVATE A)
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add_executable(exec ${CMAKE_CURRENT_BINARY_DIR}/exec.swift)
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target_link_libraries(exec PRIVATE B)
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