1 files changed, 239 insertions, 0 deletions
diff --git a/clang-tools-extra/test/clang-tidy/modernize-deprecated-ios-base-aliases.cpp b/clang-tools-extra/test/clang-tidy/modernize-deprecated-ios-base-aliases.cpp
new file mode 100644
index 00000000000..680cb9ec40b
--- /dev/null
+++ b/clang-tools-extra/test/clang-tidy/modernize-deprecated-ios-base-aliases.cpp
@@ -0,0 +1,239 @@
+// RUN: %check_clang_tidy %s modernize-deprecated-ios-base-aliases %t
+
+namespace std {
+class ios_base {
+public:
+  typedef int io_state;
+  typedef int open_mode;
+  typedef int seek_dir;
+
+  typedef int streampos;
+  typedef int streamoff;
+};
+
+template <class CharT>
+class basic_ios : public ios_base {
+};
+} // namespace std
+
+// Test function return values (declaration)
+std::ios_base::io_state f_5();
+// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: 'std::ios_base::io_state' is deprecated; use 'std::ios_base::iostate' instead [modernize-deprecated-ios-base-aliases]
+// CHECK-FIXES: std::ios_base::iostate f_5();
+
+// Test function parameters.
+void f_6(std::ios_base::open_mode);
+// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::open_mode' is deprecated
+// CHECK-FIXES: void f_6(std::ios_base::openmode);
+void f_7(const std::ios_base::seek_dir &);
+// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 'std::ios_base::seek_dir' is deprecated
+// CHECK-FIXES: void f_7(const std::ios_base::seekdir &);
+
+// Test on record type fields.
+struct A {
+  std::ios_base::io_state field;
+  // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: std::ios_base::iostate field;
+
+  typedef std::ios_base::io_state int_ptr_type;
+  // CHECK-MESSAGES: :[[@LINE-1]]:26: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: typedef std::ios_base::iostate int_ptr_type;
+};
+
+struct B : public std::ios_base {
+  io_state a;
+  // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: iostate a;
+};
+
+struct C : public std::basic_ios<char> {
+  io_state a;
+  // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: iostate a;
+};
+
+void f_1() {
+  std::ios_base::io_state a;
+  // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: std::ios_base::iostate a;
+
+  // Check that spaces aren't modified unnecessarily.
+  std :: ios_base :: io_state b;
+  // CHECK-MESSAGES: :[[@LINE-1]]:22: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: std :: ios_base :: iostate b;
+
+  // Test construction from a temporary.
+  std::ios_base::io_state c = std::ios_base::io_state{};
+  // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-MESSAGES: :[[@LINE-2]]:46: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: std::ios_base::iostate c = std::ios_base::iostate{};
+
+  typedef std::ios_base::io_state alias1;
+  // CHECK-MESSAGES: :[[@LINE-1]]:26: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: typedef std::ios_base::iostate alias1;
+  alias1 d(a);
+
+  using alias2 = std::ios_base::io_state;
+  // CHECK-MESSAGES: :[[@LINE-1]]:33: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: using alias2 = std::ios_base::iostate;
+  alias2 e;
+
+  // Test pointers.
+  std::ios_base::io_state *f;
+  // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: std::ios_base::iostate *f;
+
+  // Test 'static' declarations.
+  static std::ios_base::io_state g;
+  // CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: static std::ios_base::iostate g;
+
+  // Test with cv-qualifiers.
+  const std::ios_base::io_state h(0);
+  // CHECK-MESSAGES: :[[@LINE-1]]:24: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: const std::ios_base::iostate h(0);
+  volatile std::ios_base::io_state i;
+  // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: volatile std::ios_base::iostate i;
+  const volatile std::ios_base::io_state j(0);
+  // CHECK-MESSAGES: :[[@LINE-1]]:33: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: const volatile std::ios_base::iostate j(0);
+
+  // Test auto and initializer-list.
+  auto k = std::ios_base::io_state{};
+  // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: auto k = std::ios_base::iostate{};
+
+  std::ios_base::io_state l{std::ios_base::io_state()};
+  // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-MESSAGES: :[[@LINE-2]]:44: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: std::ios_base::iostate l{std::ios_base::iostate()};
+
+  // Test temporaries.
+  std::ios_base::io_state();
+  // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: std::ios_base::iostate();
+
+  // Test inherited type usage
+  std::basic_ios<char>::io_state m;
+  // CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: std::basic_ios<char>::iostate m;
+
+  std::ios_base::streampos n;
+  // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::streampos' is deprecated [modernize-deprecated-ios-base-aliases]
+
+  std::ios_base::streamoff o;
+  // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::streamoff' is deprecated [modernize-deprecated-ios-base-aliases]
+}
+
+// Test without the nested name specifiers.
+void f_2() {
+  using namespace std;
+
+  ios_base::io_state a;
+  // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: ios_base::iostate a;
+}
+
+// Test messing-up with macros.
+void f_4() {
+#define MACRO_1 std::ios_base::io_state
+  // CHECK-MESSAGES: :[[@LINE-1]]:32: warning: 'std::ios_base::io_state' is deprecated
+  MACRO_1 a;
+
+#define MACRO_2 io_state
+  // CHECK-MESSAGES: :[[@LINE-1]]:17: warning: 'std::ios_base::io_state' is deprecated
+  std::ios_base::MACRO_2 b;
+
+#define MACRO_3 std::ios_base
+  MACRO_3::io_state c;
+  // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: 'std::ios_base::io_state' is deprecated
+
+#define MACRO_4(type) type::io_state
+  // CHECK-MESSAGES: :[[@LINE-1]]:29: warning: 'std::ios_base::io_state' is deprecated
+  MACRO_4(std::ios_base) d;
+
+#undef MACRO_1
+#undef MACRO_2
+#undef MACRO_3
+#undef MACRO_4
+}
+
+// Test function return values (definition).
+std::ios_base::io_state f_5()
+// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: 'std::ios_base::io_state' is deprecated
+// CHECK-FIXES: std::ios_base::iostate f_5()
+{
+  // Test constructor.
+  return std::ios_base::io_state(0);
+  // CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: return std::ios_base::iostate(0);
+}
+
+// Test that other aliases with same name aren't replaced
+struct my_ios_base {
+  typedef int io_state;
+};
+
+namespace ns_1 {
+struct my_ios_base2 {
+  typedef int io_state;
+};
+} // namespace ns_1
+
+void f_8() {
+  my_ios_base::io_state a;
+
+  ns_1::my_ios_base2::io_state b;
+}
+
+// Test templates
+template <typename X>
+void f_9() {
+  typename std::basic_ios<X>::io_state p;
+  // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 'std::ios_base::io_state' is deprecated
+  typename std::ios_base::io_state q;
+  // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: typename std::ios_base::iostate q;
+}
+
+template <typename T>
+void f_10(T arg) {
+  T x(arg);
+}
+
+template <typename T>
+void f_11() {
+  typename T::io_state x{};
+  // CHECK-MESSAGES: :[[@LINE-1]]:15: warning: 'std::ios_base::io_state' is deprecated
+}
+
+template <typename T>
+struct D : std::ios_base {
+  io_state a;
+  // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: iostate a;
+
+  typename std::basic_ios<T>::io_state b;
+  // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 'std::ios_base::io_state' is deprecated
+};
+
+template <typename T>
+struct E {
+  T t;
+};
+
+void f_12() {
+  f_9<char>();
+
+  f_10<std::ios_base::io_state>(0);
+  // CHECK-MESSAGES: :[[@LINE-1]]:23: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: f_10<std::ios_base::iostate>(0);
+
+  f_11<std::ios_base>();
+  D<char> d;
+
+  E<std::ios_base::io_state> e;
+  // CHECK-MESSAGES: :[[@LINE-1]]:20: warning: 'std::ios_base::io_state' is deprecated
+  // CHECK-FIXES: E<std::ios_base::iostate> e;
+}