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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2017-04-29 00:34:47 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2017-04-29 00:34:47 +0000 |
| commit | c51c38b4ec63ca17f5d38ec73b218a0247b39ace (patch) | |
| tree | a2c3032fc1feb995c824e078a39c82086319a6d1 /clang/test/Preprocessor/pp-modules.c | |
| parent | 6fdcb3c2cea9af306285867f4b4132e4149af8a6 (diff) | |
| download | bcm5719-llvm-c51c38b4ec63ca17f5d38ec73b218a0247b39ace.tar.gz bcm5719-llvm-c51c38b4ec63ca17f5d38ec73b218a0247b39ace.zip | |
Add pragma to perform module import and use it in -E output.
Many of our supported configurations support modules but do not have any
first-class syntax to perform a module import. This leaves us with a problem:
there is no way to represent the expansion of a #include that imports a module
in the -E output for such languages. (We don't want to just leave it as a
#include because that requires the consumer of the preprocessed source to have
the same file system layout and include paths as the creator.)
This patch adds a new pragma:
#pragma clang module import MODULE.NAME.HERE
that imports a module, and changes -E and -frewrite-includes to use it when
rewriting a #include that maps to a module import. We don't make any attempt
to use a native language syntax import if one exists, to get more consistent
output. (If in the future, @import and #include have different semantics in
some way, the pragma will track the #include semantics.)
llvm-svn: 301725
Diffstat (limited to 'clang/test/Preprocessor/pp-modules.c')
| -rw-r--r-- | clang/test/Preprocessor/pp-modules.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/clang/test/Preprocessor/pp-modules.c b/clang/test/Preprocessor/pp-modules.c index 09f3eee193f..8c283c62713 100644 --- a/clang/test/Preprocessor/pp-modules.c +++ b/clang/test/Preprocessor/pp-modules.c @@ -3,13 +3,13 @@ // CHECK: int bar(); int bar(); -// CHECK: @import Module; /* clang -E: implicit import for "{{.*Headers[/\\]Module.h}}" */ +// CHECK: #pragma clang module import Module /* clang -E: implicit import for #include <Module/Module.h> */{{$}} #include <Module/Module.h> // CHECK: int foo(); int foo(); -// CHECK: @import Module; /* clang -E: implicit import for "{{.*Headers[/\\]Module.h}}" */ +// CHECK: #pragma clang module import Module /* clang -E: implicit import for #include <Module/Module.h> */{{$}} #include <Module/Module.h> #include "pp-modules.h" // CHECK: # 1 "{{.*}}pp-modules.h" 1 -// CHECK: @import Module; /* clang -E: implicit import for "{{.*}}Module.h" */{{$}} +// CHECK: #pragma clang module import Module /* clang -E: implicit import for #include <Module/Module.h> */{{$}} // CHECK: # 14 "{{.*}}pp-modules.c" 2 |
