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A ‘forwarding module’ is a YAML file that’s meant to stand in for a .swiftmodule file and provide an up-to-date description of its dependencies, always using modification times. When a ‘prebuilt module’ is first loaded, we verify that it’s up-to-date by hashing all of its dependencies. Since this is orders of magnitude slower than reading mtimes, we’ll install a `forwarding module` containing the mtimes of the now-validated dependencies.
37 lines
2.7 KiB
Swift
37 lines
2.7 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %empty-directory(%t/include/Lib.swiftmodule)
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// RUN: cp %S/Inputs/prebuilt-module-cache/Lib.swiftinterface %t/include/Lib.swiftmodule/%target-cpu.swiftinterface
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// Baseline check: if the prebuilt cache path does not exist, everything should
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// still work.
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// RUN: not %target-swift-frontend -typecheck -enable-parseable-module-interface -parse-stdlib -module-cache-path %t/MCP -sdk %t/include -I %t/include/ -prebuilt-module-cache-path %t/prebuilt-cache %s 2>&1 | %FileCheck -check-prefix=FROM-INTERFACE %s
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// Baseline check: if the module is not in the prebuilt cache, build it
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// normally.
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// RUN: %empty-directory(%t/prebuilt-cache)
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// RUN: not %target-swift-frontend -typecheck -enable-parseable-module-interface -parse-stdlib -module-cache-path %t/MCP -sdk %t/include -I %t/include/ -prebuilt-module-cache-path %t/prebuilt-cache %s 2>&1 | %FileCheck -check-prefix=FROM-INTERFACE %s
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// Do a manual prebuild, and see if it gets picked up.
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// RUN: %empty-directory(%t/MCP)
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// RUN: %empty-directory(%t/prebuilt-cache/Lib.swiftmodule)
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// RUN: sed -e 's/FromInterface/FromPrebuilt/g' %S/Inputs/prebuilt-module-cache/Lib.swiftinterface | %target-swift-frontend -parse-stdlib -module-cache-path %t/MCP -emit-module-path %t/prebuilt-cache/Lib.swiftmodule/%target-swiftmodule-name - -module-name Lib
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// RUN: not %target-swift-frontend -typecheck -enable-parseable-module-interface -parse-stdlib -module-cache-path %t/MCP -sdk %t/include -I %t/include/ -prebuilt-module-cache-path %t/prebuilt-cache %s 2>&1 | %FileCheck -check-prefix=FROM-PREBUILT %s
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// Make sure we installed a forwarding module.
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// RUN: %{python} %S/Inputs/check-is-forwarding-module.py %t/MCP/Lib-*.swiftmodule
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// What if the module is invalid?
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// RUN: rm %t/prebuilt-cache/Lib.swiftmodule/%target-swiftmodule-name && touch %t/prebuilt-cache/Lib.swiftmodule/%target-swiftmodule-name
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// RUN: not %target-swift-frontend -typecheck -enable-parseable-module-interface -parse-stdlib -module-cache-path %t/MCP -sdk %t/include -I %t/include/ -prebuilt-module-cache-path %t/prebuilt-cache %s 2>&1 | %FileCheck -check-prefix=FROM-INTERFACE %s
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// What if the arch is missing?
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// RUN: rm %t/prebuilt-cache/Lib.swiftmodule/%target-swiftmodule-name
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// RUN: not %target-swift-frontend -typecheck -enable-parseable-module-interface -parse-stdlib -module-cache-path %t/MCP -sdk %t/include -I %t/include/ -prebuilt-module-cache-path %t/prebuilt-cache %s 2>&1 | %FileCheck -check-prefix=FROM-INTERFACE %s
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import Lib
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struct X {}
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let _: X = Lib.testValue
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// FROM-INTERFACE: [[@LINE-1]]:16: error: cannot convert value of type 'FromInterface' to specified type 'X'
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// FROM-PREBUILT: [[@LINE-2]]:16: error: cannot convert value of type 'FromPrebuilt' to specified type 'X'
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