bruno updated this revision to Diff 76931.
bruno marked an inline comment as done.
bruno added a comment.
Update patch after Vassil's comments!
https://reviews.llvm.org/D26267
Files:
include/clang/Lex/ModuleMap.h
lib/Frontend/FrontendActions.cpp
lib/Lex/ModuleMap.cpp
test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/cstddef
test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/math.h
test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/module.modulemap
test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/stddef.h
test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/type_traits
test/Modules/Inputs/libc-libcxx/sysroot/usr/include/module.modulemap
test/Modules/Inputs/libc-libcxx/sysroot/usr/include/stddef.h
test/Modules/Inputs/libc-libcxx/sysroot/usr/include/sys/_types/_ptrdiff_t.h
test/Modules/Inputs/libc-libcxx/sysroot/usr/include/sys/_types/_types.h
test/Modules/builtin-import.mm
Index: test/Modules/builtin-import.mm
===================================================================
--- /dev/null
+++ test/Modules/builtin-import.mm
@@ -0,0 +1,6 @@
+// REQUIRES: system-darwin
+
+// RUN: rm -rf %t
+// RUN: %clang -cc1 -fsyntax-only -nostdinc++ -isysroot %S/Inputs/libc-libcxx/sysroot -isystem %S/Inputs/libc-libcxx/sysroot/usr/include/c++/v1 -F%S/Inputs/libc-libcxx/sysroot/Frameworks -std=c++11 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x objective-c++ -fmodules-local-submodule-visibility %s
+
+#include <stdio.h>
Index: test/Modules/Inputs/libc-libcxx/sysroot/usr/include/sys/_types/_types.h
===================================================================
--- /dev/null
+++ test/Modules/Inputs/libc-libcxx/sysroot/usr/include/sys/_types/_types.h
@@ -0,0 +1,6 @@
+#ifndef _SYS_TYPES_UMBRELLA
+#define _SYS_TYPES_UMBRELLA
+
+#include "_ptrdiff_t.h"
+
+#endif
Index: test/Modules/Inputs/libc-libcxx/sysroot/usr/include/sys/_types/_ptrdiff_t.h
===================================================================
--- /dev/null
+++ test/Modules/Inputs/libc-libcxx/sysroot/usr/include/sys/_types/_ptrdiff_t.h
@@ -0,0 +1,4 @@
+#ifndef _PTRDIFF_T
+#define _PTRDIFF_T
+typedef int * ptrdiff_t;
+#endif /* _PTRDIFF_T */
Index: test/Modules/Inputs/libc-libcxx/sysroot/usr/include/stddef.h
===================================================================
--- test/Modules/Inputs/libc-libcxx/sysroot/usr/include/stddef.h
+++ test/Modules/Inputs/libc-libcxx/sysroot/usr/include/stddef.h
@@ -1 +1,6 @@
-// stddef.h
+#ifndef __STDDEF_H__
+#define __STDDEF_H__
+
+#include "sys/_types/_ptrdiff_t.h"
+
+#endif
Index: test/Modules/Inputs/libc-libcxx/sysroot/usr/include/module.modulemap
===================================================================
--- test/Modules/Inputs/libc-libcxx/sysroot/usr/include/module.modulemap
+++ test/Modules/Inputs/libc-libcxx/sysroot/usr/include/module.modulemap
@@ -5,4 +5,12 @@
module stdint { header "stdint.h" export * }
module stdio { header "stdio.h" export * }
module util { header "util.h" export * }
+ module POSIX {
+ module sys {
+ module types {
+ umbrella header "sys/_types/_types.h"
+ export *
+ }
+ }
+ }
}
Index: test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/type_traits
===================================================================
--- /dev/null
+++ test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/type_traits
@@ -0,0 +1,6 @@
+#ifndef _LIBCPP_TYPE_TRAITS
+#define _LIBCPP_TYPE_TRAITS
+
+#include <cstddef>
+
+#endif
Index: test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/stddef.h
===================================================================
--- test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/stddef.h
+++ test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/stddef.h
@@ -2,5 +2,6 @@
#define LIBCXX_STDDEF_H
#include <__config>
+#include_next <stddef.h>
#endif
Index: test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/module.modulemap
===================================================================
--- test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/module.modulemap
+++ test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/module.modulemap
@@ -6,5 +6,7 @@
// FIXME: remove "textual" from stdint module below once the issue
// between umbrella headers and builtins is resolved.
module stdint { textual header "stdint.h" export * }
+ module type_traits { header "type_traits" export * }
+ module cstddef { header "cstddef" export * }
module __config { header "__config" export * }
}
Index: test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/math.h
===================================================================
--- test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/math.h
+++ test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/math.h
@@ -4,4 +4,6 @@
#include_next <math.h>
template<typename T> T abs(T t) { return (t < 0) ? -t : t; }
+#include <type_traits>
+
#endif
Index: test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/cstddef
===================================================================
--- /dev/null
+++ test/Modules/Inputs/libc-libcxx/sysroot/usr/include/c++/v1/cstddef
@@ -0,0 +1,9 @@
+#ifndef _LIBCPP_CSTDDEF
+#define _LIBCPP_CSTDDEF
+
+#include <stddef.h>
+#include <type_traits>
+
+typedef ptrdiff_t my_ptrdiff_t;
+
+#endif
Index: lib/Lex/ModuleMap.cpp
===================================================================
--- lib/Lex/ModuleMap.cpp
+++ lib/Lex/ModuleMap.cpp
@@ -144,7 +144,7 @@
/// \brief Determine whether the given file name is the name of a builtin
/// header, supplied by Clang to replace, override, or augment existing system
/// headers.
-static bool isBuiltinHeader(StringRef FileName) {
+bool ModuleMap::isBuiltinHeader(StringRef FileName) {
return llvm::StringSwitch<bool>(FileName)
.Case("float.h", true)
.Case("iso646.h", true)
@@ -1847,7 +1847,7 @@
// supplied by Clang. Find that builtin header.
if (ActiveModule->IsSystem && LeadingToken != MMToken::UmbrellaKeyword &&
BuiltinIncludeDir && BuiltinIncludeDir != Directory &&
- isBuiltinHeader(Header.FileName)) {
+ ModuleMap::isBuiltinHeader(Header.FileName)) {
SmallString<128> BuiltinPathName(BuiltinIncludeDir->getName());
llvm::sys::path::append(BuiltinPathName, Header.FileName);
BuiltinFile = SourceMgr.getFileManager().getFile(BuiltinPathName);
Index: lib/Frontend/FrontendActions.cpp
===================================================================
--- lib/Frontend/FrontendActions.cpp
+++ lib/Frontend/FrontendActions.cpp
@@ -177,10 +177,10 @@
static void addHeaderInclude(StringRef HeaderName,
SmallVectorImpl<char> &Includes,
const LangOptions &LangOpts,
- bool IsExternC) {
+ bool IsExternC, bool AlwaysInclude = false) {
if (IsExternC && LangOpts.CPlusPlus)
Includes += "extern \"C\" {\n";
- if (LangOpts.ObjC1)
+ if (LangOpts.ObjC1 && !AlwaysInclude)
Includes += "#import \"";
else
Includes += "#include \"";
@@ -215,7 +215,17 @@
// file relative to the module build directory (the directory containing
// the module map file) so this will find the same file that we found
// while parsing the module map.
- addHeaderInclude(H.NameAsWritten, Includes, LangOpts, Module->IsExternC);
+ // Since builtins are treated as textual headers and there's no context
+ // leak in local submodule visibility, make sure we use #include
+ // instead of #import (even in ObjC/C++) and guarantee it's always
+ // included.
+ bool IsBuiltin = false;
+ if (LangOpts.ObjC1 && llvm::sys::path::is_absolute(H.NameAsWritten) &&
+ ModuleMap::isBuiltinHeader(
+ llvm::sys::path::filename(H.NameAsWritten)))
+ IsBuiltin = true;
+ addHeaderInclude(H.NameAsWritten, Includes, LangOpts, Module->IsExternC,
+ IsBuiltin /*AlwaysInclude*/);
}
}
// Note that Module->PrivateHeaders will not be a TopHeader.
Index: include/clang/Lex/ModuleMap.h
===================================================================
--- include/clang/Lex/ModuleMap.h
+++ include/clang/Lex/ModuleMap.h
@@ -311,6 +311,11 @@
BuiltinIncludeDir = Dir;
}
+ /// \brief Determine whether the given file name is the name of a builtin
+ /// header, supplied by Clang to replace, override, or augment existing system
+ /// headers.
+ static bool isBuiltinHeader(StringRef FileName);
+
/// \brief Add a module map callback.
void addModuleMapCallbacks(std::unique_ptr<ModuleMapCallbacks> Callback) {
Callbacks.push_back(std::move(Callback));
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