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Frontend: add a frontend flag to disable building module from textual interface

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This is for testing purposes to ensure prebuilt modules are up to date.

rdar://68770805
This commit is contained in:
Xi Ge
2020-10-05 10:48:07 -07:00
parent 23dc001364
commit 00eb2e9db2
6 changed files with 44 additions and 7 deletions
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21
test/ModuleInterface/disable-building-interface.swift Normal file
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// 1. Create folders
// RUN: %empty-directory(%t/PrebuiltModule.swiftmodule)
// RUN: %empty-directory(%t/ModuleCache)
// 2. Define some public API
// RUN: echo 'public struct InPrebuiltModule {}' > %t/PrebuiltModule.swift
// 3. Compile textual interface only into a directory
// RUN: %target-swift-frontend -emit-module %t/PrebuiltModule.swift -module-name PrebuiltModule -emit-module-interface-path %t/PrebuiltModule.swiftmodule/%target-swiftinterface-name
// 4. Import this module with -disable-building-interface should fail
// RUN: not %target-swift-frontend -typecheck -I %t %s -module-cache-path %t/ModuleCache -sdk %t -disable-building-interface
// 5. Import this module without -disable-building-interface should succeed
// RUN: %target-swift-frontend -typecheck -I %t %s -module-cache-path %t/ModuleCache -sdk %t
import PrebuiltModule
func x<T>(_ x: T) {}
x(InPrebuiltModule.self)