Make folly.TypeError compatible with -Wdeprecated

Summary: Starting with C++11, implicit generation of copy/move constructors/operators in presence of user-defined destructors/constructors/operators is deprecated

Reviewed By: yfeldblum

Differential Revision: D6875337

fbshipit-source-id: a623a3ce2e7f5559d2de2324565c8995682085c7

folly/dynamic-inl.h

@@ -82,6 +82,16 @@ struct FOLLY_EXPORT TypeError : std::runtime_error {
       const std::string& expected,
       dynamic::Type actual1,
       dynamic::Type actual2);
+  // TODO: noexcept calculation required through gcc-v4.9; remove once upgrading
+  // to gcc-v5.
+  TypeError(const TypeError&) noexcept(
+      std::is_nothrow_copy_constructible<std::runtime_error>::value);
+  TypeError& operator=(const TypeError&) noexcept(
+      std::is_nothrow_copy_assignable<std::runtime_error>::value);
+  TypeError(TypeError&&) noexcept(
+      std::is_nothrow_move_constructible<std::runtime_error>::value);
+  TypeError& operator=(TypeError&&) noexcept(
+      std::is_nothrow_move_assignable<std::runtime_error>::value);
   ~TypeError() override;
 };
 

folly/dynamic.cpp

@@ -60,6 +60,14 @@ TypeError::TypeError(
           dynamic::typeName(actual1),
           dynamic::typeName(actual2))) {}
 
+TypeError::TypeError(const TypeError&) noexcept(
+    std::is_nothrow_copy_constructible<std::runtime_error>::value) = default;
+TypeError& TypeError::operator=(const TypeError&) noexcept(
+    std::is_nothrow_copy_assignable<std::runtime_error>::value) = default;
+TypeError::TypeError(TypeError&&) noexcept(
+    std::is_nothrow_move_constructible<std::runtime_error>::value) = default;
+TypeError& TypeError::operator=(TypeError&&) noexcept(
+    std::is_nothrow_move_assignable<std::runtime_error>::value) = default;
 TypeError::~TypeError() = default;
 
 [[noreturn]] void throwTypeError_(