Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/clang-tools-extra/test/change-namespace/Inputs/fake-std.h

@@ -0,0 +1,5 @@
+namespace std {
+  class STD {};
+}
+
+using namespace std;

external/llvm-project/clang-tools-extra/test/change-namespace/lambda-function.cpp

@@ -0,0 +1,37 @@
+// RUN: clang-change-namespace -old_namespace "na::nb" -new_namespace "x::y" --file_pattern ".*" %s -- -std=c++11 | sed 's,// CHECK.*,,' | FileCheck %s
+
+template <class T>
+class function;
+template <class R, class... ArgTypes>
+class function<R(ArgTypes...)> {
+public:
+  template <typename Functor>
+  function(Functor f) {}
+  R operator()(ArgTypes...) const {}
+};
+
+namespace x {
+// CHECK: namespace x {
+class X {};
+}
+
+namespace na {
+namespace nb {
+// CHECK: namespace x {
+// CHECK-NEXT: namespace y {
+void f(function<void(int)> func, int param) { func(param); }
+void g() { f([](int x) {}, 1); }
+
+// x::X in function type parameter list will have translation unit context, so
+// we simply replace it with fully-qualified name.
+using TX = function<x::X(x::X)>;
+// CHECK: using TX = function<X(x::X)>;
+
+class A {};
+using TA = function<A(A)>;
+// CHECK: using TA = function<A(A)>;
+
+// CHECK: } // namespace y
+// CHECK-NEXT: } // namespace x
+}
+}

external/llvm-project/clang-tools-extra/test/change-namespace/macro.cpp

@@ -0,0 +1,29 @@
+// RUN: cp %S/macro.cpp %T/macro.cpp
+// RUN: echo "#define USING using na::nc::X" > %T/macro.h
+//
+// RUN: clang-change-namespace -old_namespace "na::nb" -new_namespace "x::y" --file_pattern "macro.cpp" --i %T/macro.cpp --
+// RUN: FileCheck -input-file=%T/macro.cpp -check-prefix=CHECK-CC %s
+// RUN: FileCheck -input-file=%T/macro.h -check-prefix=CHECK-HEADER %s
+//
+// RUN: cp %S/macro.cpp %T/macro.cpp
+// RUN: echo "#define USING using na::nc::X" > %T/macro.h
+// RUN: clang-change-namespace -old_namespace "na::nb" -new_namespace "x::y" --file_pattern ".*" --i %T/macro.cpp --
+// RUN: FileCheck -input-file=%T/macro.cpp -check-prefix=CHECK-CC %s
+// RUN: FileCheck -input-file=%T/macro.h -check-prefix=CHECK-CHANGED-HEADER %s
+#include "macro.h"
+namespace na { namespace nc { class X{}; } }
+
+namespace na {
+namespace nb {
+USING;
+}
+}
+// CHECK-CC: namespace x {
+// CHECK-CC: namespace y {
+// CHECK-CC: USING;
+// CHECK-CC: } // namespace y
+// CHECK-CC: } // namespace x
+
+// CHECK-HEADER: #define USING using na::nc::X
+
+// CHECK-CHANGED-HEADER: #define USING using ::na::nc::X

external/llvm-project/clang-tools-extra/test/change-namespace/simple-move.cpp

@@ -0,0 +1,10 @@
+// RUN: clang-change-namespace -old_namespace "na::nb" -new_namespace "x::y" --file_pattern ".*" %s -- | sed 's,// CHECK.*,,' | FileCheck %s
+// CHECK: namespace x {
+// CHECK-NEXT: namespace y {
+namespace na {
+namespace nb {
+class A {};
+// CHECK: } // namespace y
+// CHECK-NEXT: } // namespace x
+}
+}

external/llvm-project/clang-tools-extra/test/change-namespace/white-list.cpp

@@ -0,0 +1,19 @@
+// RUN: echo "^std::.*$" > %T/white-list.txt
+// RUN: clang-change-namespace -old_namespace "na::nb" -new_namespace "x::y" --file_pattern ".*" --whitelist_file %T/white-list.txt %s -- | sed 's,// CHECK.*,,' | FileCheck %s
+
+#include "Inputs/fake-std.h"
+
+// CHECK: namespace x {
+// CHECK-NEXT: namespace y {
+namespace na {
+namespace nb {
+void f() {
+  std::STD x1;
+  STD x2;
+// CHECK: {{^}}  std::STD x1;{{$}}
+// CHECK-NEXT: {{^}}  STD x2;{{$}}
+}
+// CHECK: } // namespace y
+// CHECK-NEXT: } // namespace x
+}
+}