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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
28 lines
1.4 KiB
C
28 lines
1.4 KiB
C
// RUN: rm -rf %t
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// RUN: mkdir %t
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// RUN: echo 'extern int dummy;' > %t/dummy.h
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// RUN: echo 'module dummy { header "dummy.h" }' > %t/module.modulemap
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// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t %s -I%t -E -frewrite-includes -o - | FileCheck %s
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// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x objective-c %s -I%t -E -frewrite-includes -o - | FileCheck %s
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// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x c++ %s -I%t -E -frewrite-includes -o - | FileCheck %s
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int bar();
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#include "dummy.h"
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int foo();
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#include "dummy.h"
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// CHECK: int bar();{{$}}
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// CHECK-NEXT: #if 0 /* expanded by -frewrite-includes */{{$}}
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// CHECK-NEXT: #include "dummy.h"{{$}}
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// CHECK-NEXT: #endif /* expanded by -frewrite-includes */{{$}}
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// CHECK-NEXT: # 10 "{{.*[/\\]}}rewrite-includes-modules.c"{{$}}
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// CHECK-NEXT: #pragma clang module import dummy /* clang -frewrite-includes: implicit import */{{$}}
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// CHECK-NEXT: # 11 "{{.*[/\\]}}rewrite-includes-modules.c"{{$}}
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// CHECK-NEXT: int foo();{{$}}
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// CHECK-NEXT: #if 0 /* expanded by -frewrite-includes */{{$}}
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// CHECK-NEXT: #include "dummy.h"{{$}}
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// CHECK-NEXT: #endif /* expanded by -frewrite-includes */{{$}}
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// CHECK-NEXT: # 12 "{{.*[/\\]}}rewrite-includes-modules.c"{{$}}
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// CHECK-NEXT: #pragma clang module import dummy /* clang -frewrite-includes: implicit import */{{$}}
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// CHECK-NEXT: # 13 "{{.*[/\\]}}rewrite-includes-modules.c"{{$}}
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