|  | // RUN: rm -rf %t | 
|  | // RUN: split-file %s %t | 
|  | // RUN: cd %t | 
|  | // | 
|  | // RUN: %clang_cc1 -std=c++20 -I %t %t/A.cppm -emit-module-interface -o %t/A.pcm -verify | 
|  | // RUN: %clang_cc1 -std=c++20 -I %t %t/B.cpp -fmodule-file=A=%t/A.pcm -fsyntax-only -verify -ast-dump-all -ast-dump-filter baz | FileCheck %s | 
|  |  | 
|  | //--- foo.h | 
|  | namespace baz { | 
|  | using foo = char; | 
|  | using baz::foo; | 
|  | } | 
|  |  | 
|  | //--- A.cppm | 
|  | // expected-no-diagnostics | 
|  | module; | 
|  | #include "foo.h" | 
|  | export module A; | 
|  |  | 
|  | //--- B.cpp | 
|  | // expected-no-diagnostics | 
|  | #include "foo.h" | 
|  | import A; | 
|  | // Since modules are loaded lazily, force loading by performing a lookup. | 
|  | using xxx = baz::foo; | 
|  |  | 
|  | // CHECK-LABEL: Dumping baz: | 
|  | // CHECK-NEXT: NamespaceDecl 0x[[BAZ_REDECL_ADDR:[^ ]*]] prev 0x[[BAZ_ADDR:[^ ]*]] | 
|  | // CHECK:      TypeAliasDecl 0x[[ALIAS_REDECL_ADDR:[^ ]*]] prev 0x[[ALIAS_ADDR:[^ ]*]] | 
|  | // FIXME: UsingShadowDecl should have been merged | 
|  | // CHECK:      UsingShadowDecl 0x{{[^ ]*}} prev 0x[[SHADOW_ADDR:[^ ]*]] {{.*}} imported in A.<global> {{.*}} 'foo' | 
|  |  | 
|  | // CHECK-LABEL: Dumping baz: | 
|  | // CHECK-NEXT: NamespaceDecl 0x[[BAZ_ADDR]] <{{.*}}> line:{{.*}} baz | 
|  | // CHECK:      UsingShadowDecl 0x[[SHADOW_ADDR]] {{.*}} 'foo' |