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[modules] Allow frameworks to have only a private module without a public one. 

Support only preferred spelling 'Modules/module.private.modulemap' and
not the deprecated 'module_private.map'.

rdar://problem/57715533

Reviewed By: bruno

Differential Revision: https://reviews.llvm.org/D75311
This commit is contained in:
Volodymyr Sapsai 2020-02-27 15:51:24 -08:00
parent 7d973307d5
commit 4069dd1412
6 changed files with 31 additions and 0 deletions
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10
clang/lib/Lex/HeaderSearch.cpp
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@ -1568,6 +1568,16 @@ HeaderSearch::lookupModuleMapFile(const DirectoryEntry *Dir, bool IsFramework) {
llvm::sys::path::append(ModuleMapFileName, "module.map");
if (auto F = FileMgr.getFile(ModuleMapFileName))
return *F;
// For frameworks, allow to have a private module map with a preferred
// spelling when a public module map is absent.
if (IsFramework) {
ModuleMapFileName = Dir->getName();
llvm::sys::path::append(ModuleMapFileName, "Modules",
"module.private.modulemap");
if (auto F = FileMgr.getFile(ModuleMapFileName))
return *F;
}
return nullptr;
}

1
clang/test/Modules/Inputs/implicit-private-without-public/DeprecatedModuleMapLocation.framework/PrivateHeaders/A.h Normal file
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@ -0,0 +1 @@
void a(void);

4
clang/test/Modules/Inputs/implicit-private-without-public/DeprecatedModuleMapLocation.framework/module_private.map Normal file
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@ -0,0 +1,4 @@
framework module DeprecatedModuleMapLocation_Private {
header "A.h"
export *
}

4
clang/test/Modules/Inputs/implicit-private-without-public/Foo.framework/Modules/module.private.modulemap Normal file
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@ -0,0 +1,4 @@
framework module Foo_Private {
header "Foo_Priv.h"
export *
}

1
clang/test/Modules/Inputs/implicit-private-without-public/Foo.framework/PrivateHeaders/Foo_Priv.h Normal file
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@ -0,0 +1 @@
void foo_private(void);

11
clang/test/Modules/implicit-private-without-public.m Normal file
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@ -0,0 +1,11 @@
// REQUIRES: shell
// RUN: rm -rf %t
// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t \
// RUN: -F%S/Inputs/implicit-private-without-public \
// RUN: -fsyntax-only %s -verify
@import Foo_Private;
// Private module map without a public one isn't supported for deprecated module map locations.
@import DeprecatedModuleMapLocation_Private;
// expected-error@-1{{module 'DeprecatedModuleMapLocation_Private' not found}}