[clang-move] Fix not moving using-decls in global namespace in old.cc

Reviewers: ioeric

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D26844

llvm-svn: 287330

clang-tools-extra/clang-move/ClangMove.cpp

@@ -373,6 +373,7 @@ createInsertedReplacements(const std::vector<std::string> &Includes,
     }
     // If the moved declaration is in same namespace CurrentNamespace, add
     // a preceeding `\n' before the moved declaration.
+    // FIXME: Don't add empty lines between using declarations.
     if (!IsInNewNamespace)
       NewCode += "\n";
     NewCode += getDeclarationSourceText(MovedDecl.Decl, MovedDecl.SM);
@@ -453,15 +454,17 @@ void ClangMoveTool::registerMatchers(ast_matchers::MatchFinder *Finder) {
   //============================================================================
   // Matchers for old cc
   //============================================================================
-  auto InOldCCNamedNamespace =
-      allOf(hasParent(namespaceDecl(unless(isAnonymous()))), InOldCC);
-  // Matching using decls/type alias decls which are in named namespace. Those
-  // in classes, functions and anonymous namespaces are covered in other
-  // matchers.
+  auto InOldCCNamedOrGlobalNamespace =
+      allOf(hasParent(decl(anyOf(namespaceDecl(unless(isAnonymous())),
+                                 translationUnitDecl()))),
+            InOldCC);
+  // Matching using decls/type alias decls which are in named namespace or
+  // global namespace. Those in classes, functions and anonymous namespaces are
+  // covered in other matchers.
   Finder->addMatcher(
-      namedDecl(anyOf(usingDecl(InOldCCNamedNamespace),
-                      usingDirectiveDecl(InOldCC, InOldCCNamedNamespace),
-                      typeAliasDecl(InOldCC, InOldCCNamedNamespace)))
+      namedDecl(anyOf(usingDecl(InOldCCNamedOrGlobalNamespace),
+                      usingDirectiveDecl(InOldCCNamedOrGlobalNamespace),
+                      typeAliasDecl( InOldCCNamedOrGlobalNamespace)))
           .bind("using_decl"),
       this);
 
@@ -472,7 +475,7 @@ void ClangMoveTool::registerMatchers(ast_matchers::MatchFinder *Finder) {
   // Match static functions/variable definitions which are defined in named
   // namespaces.
   auto IsOldCCStaticDefinition =
-      allOf(isDefinition(), unless(InMovedClass), InOldCCNamedNamespace,
+      allOf(isDefinition(), unless(InMovedClass), InOldCCNamedOrGlobalNamespace,
             isStaticStorageClass());
   Finder->addMatcher(namedDecl(anyOf(functionDecl(IsOldCCStaticDefinition),
                                      varDecl(IsOldCCStaticDefinition)))

clang-tools-extra/test/clang-move/Inputs/multiple_class_test.cpp

 #include "multiple_class_test.h"
 
+using a::Move1;
+using namespace a;
+using A = a::Move1;
+static int g = 0;
+
 namespace a {
 int Move1::f() {
   return 0;

clang-tools-extra/test/clang-move/move-multiple-classes.cpp

 // RUN: mkdir -p %T/move-multiple-classes
 // RUN: cp %S/Inputs/multiple_class_test*  %T/move-multiple-classes/
 // RUN: cd %T/move-multiple-classes
-// RUN: clang-move -names="c::EnclosingMove5::Nested" -new_cc=%T/move-multiple-classes/new_multiple_class_test.cpp -new_header=%T/move-multiple-classes/new_multiple_class_test.h -old_cc=%T/move-multiple-classes/multiple_class_test.cpp -old_header=../move-multiple-classes/multiple_class_test.h -dump_result %T/move-multiple-classes/multiple_class_test.cpp -- | FileCheck %s -check-prefix=CHECK-EMPTY
-// RUN: clang-move -names="a::Move1, b::Move2,c::Move3,c::Move4,c::EnclosingMove5" -new_cc=%T/move-multiple-classes/new_multiple_class_test.cpp -new_header=%T/move-multiple-classes/new_multiple_class_test.h -old_cc=%T/move-multiple-classes/multiple_class_test.cpp -old_header=../move-multiple-classes/multiple_class_test.h %T/move-multiple-classes/multiple_class_test.cpp --
+// RUN: clang-move -names="c::EnclosingMove5::Nested" -new_cc=%T/move-multiple-classes/new_multiple_class_test.cpp -new_header=%T/move-multiple-classes/new_multiple_class_test.h -old_cc=%T/move-multiple-classes/multiple_class_test.cpp -old_header=../move-multiple-classes/multiple_class_test.h -dump_result %T/move-multiple-classes/multiple_class_test.cpp -- -std=c++11| FileCheck %s -check-prefix=CHECK-EMPTY
+// RUN: clang-move -names="a::Move1, b::Move2,c::Move3,c::Move4,c::EnclosingMove5" -new_cc=%T/move-multiple-classes/new_multiple_class_test.cpp -new_header=%T/move-multiple-classes/new_multiple_class_test.h -old_cc=%T/move-multiple-classes/multiple_class_test.cpp -old_header=../move-multiple-classes/multiple_class_test.h %T/move-multiple-classes/multiple_class_test.cpp -- -std=c++11
 // RUN: FileCheck -input-file=%T/move-multiple-classes/new_multiple_class_test.cpp -check-prefix=CHECK-NEW-TEST-CPP %s
 // RUN: FileCheck -input-file=%T/move-multiple-classes/new_multiple_class_test.h -check-prefix=CHECK-NEW-TEST-H %s
 // RUN: FileCheck -input-file=%T/move-multiple-classes/multiple_class_test.cpp -check-prefix=CHECK-OLD-TEST-CPP %s
@@ -18,6 +18,10 @@
 // CHECK-OLD-TEST-H: } // namespace c
 
 // CHECK-OLD-TEST-CPP: #include "{{.*}}multiple_class_test.h"
+// CHECK-OLD-TEST-CPP: using a::Move1;
+// CHECK-OLD-TEST-CPP: using namespace a;
+// CHECK-OLD-TEST-CPP: using A = a::Move1;
+// CHECK-OLD-TEST-CPP: static int g = 0;
 // CHECK-OLD-TEST-CPP: namespace {
 // CHECK-OLD-TEST-CPP: using a::Move1;
 // CHECK-OLD-TEST-CPP: using namespace a;
@@ -70,6 +74,10 @@
 // CHECK-NEW-TEST-H: #endif // {{.*}}NEW_MULTIPLE_CLASS_TEST_H
 
 // CHECK-NEW-TEST-CPP: #include "{{.*}}new_multiple_class_test.h"
+// CHECK-NEW-TEST-CPP: using a::Move1;
+// CHECK-NEW-TEST-CPP: using namespace a;
+// CHECK-NEW-TEST-CPP: using A = a::Move1;
+// CHECK-NEW-TEST-CPP: static int g = 0;
 // CHECK-NEW-TEST-CPP: namespace a {
 // CHECK-NEW-TEST-CPP: int Move1::f() { return 0; }
 // CHECK-NEW-TEST-CPP: } // namespace a