https://bugs.llvm.org/show_bug.cgi?id=39655
Bug ID: 39655
Summary: Modules: Support umbrella modules with inferred
submodule declaration in -frewrite-imports
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Modules
Assignee: unassignedclangb...@nondot.org
Reporter: dblai...@gmail.com
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
foo.h:
inline void foo() {}
module.modulemap:
module dot {
umbrella "."
module * { export * }
}
use.cpp:
#include "foo.h"
int main() { foo(); }
$ clang++ -fmodules -fimplicit-module-maps -fmodules-cache-path=cache \
-I . use.cpp -frewrite-imports -E -o use-rewrite.cpp
$ clang++-tot -fmodules use-rewrite.cpp
<module-includes>:1:30: error: submodule A.'foo' not declared in module map
#pragma clang module begin A.foo
^
While building module 'A' imported from use-rewrite.cpp:1:
In file included from <module-includes>:2:
/usr/local/google/home/blaikie/dev/scratch/implicit_modules_sample/./foo.h:2:22:
error: no matching '#pragma clang module begin' for this
'#pragma clang module end'
#pragma clang module end /*A.foo*/
^
use.cpp:1:29: fatal error: module 'A' not found
#pragma clang module import A.foo /* clang -frewrite-includes: implicit import
*/
~~~~~~~^
3 errors generated.
But without the inferred-submodule-declaration, this example compiles and
rewrites-imports correctly - similarly with an explicit sudmodule declaration
seems to work correctly too.
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