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llvm-project/clang/test/Modules/implicit-private-canonical.m

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[Modules] Change private modules rules and warnings We used to advertise private modules to be declared as submodules (Foo.Private). This has proven to not scale well since private headers might carry several dependencies, introducing unwanted content into the main module and often causing dep cycles. Change the canonical way to name it to Foo_Private, forcing private modules as top level ones, and provide warnings under -Wprivate-module to suggest fixes for other private naming. Update documentation to reflect that. rdar://problem/31173501 llvm-svn: 321337
2017-12-22 10:53:30 +08:00
// RUN: rm -rf %t
// Build PCH using A, with adjacent private module APrivate, which winds up being implicitly referenced
// RUN: %clang_cc1 -verify -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -F %S/Inputs/implicit-private-canonical -emit-pch -o %t-A.pch %s -Wprivate-module -DNO_AT_IMPORT
// Use the PCH with no explicit way to resolve APrivate, still pick it up by automatic second-chance search for "A" with "Private" appended
// RUN: %clang_cc1 -verify -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -F %S/Inputs/implicit-private-canonical -include-pch %t-A.pch %s -fsyntax-only -Wprivate-module -DNO_AT_IMPORT
// RUN: rm -rf %t
// RUN: %clang_cc1 -verify -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -F %S/Inputs/implicit-private-canonical -emit-pch -o %t-A.pch %s -Wprivate-module -DUSE_AT_IMPORT_PRIV
// RUN: %clang_cc1 -verify -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -F %S/Inputs/implicit-private-canonical -include-pch %t-A.pch %s -fsyntax-only -Wprivate-module -DUSE_AT_IMPORT_PRIV
// RUN: rm -rf %t
// RUN: %clang_cc1 -verify -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -F %S/Inputs/implicit-private-canonical -emit-pch -o %t-A.pch %s -Wprivate-module -DUSE_AT_IMPORT_BOTH
// RUN: %clang_cc1 -verify -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -F %S/Inputs/implicit-private-canonical -include-pch %t-A.pch %s -fsyntax-only -Wprivate-module -DUSE_AT_IMPORT_BOTH
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
#ifdef NO_AT_IMPORT
#import "A/aprivate.h"
#endif
#ifdef USE_AT_IMPORT_PRIV
@import A_Private;
#endif
#ifdef USE_AT_IMPORT_BOTH
@import A;
@import A_Private;
#endif
const int *y = &APRIVATE;
#endif