1 files changed, 121 insertions, 0 deletions
diff --git a/include/jsoncons_ext/jsonpatch/jsonpatch_error.hpp b/include/jsoncons_ext/jsonpatch/jsonpatch_error.hpp
new file mode 100644
index 0000000..33f8007
--- /dev/null
+++ b/include/jsoncons_ext/jsonpatch/jsonpatch_error.hpp
@@ -0,0 +1,121 @@
+/// Copyright 2017 Daniel Parker
+// Distributed under the Boost license, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+// See https://github.com/danielaparker/jsoncons for latest version
+
+#ifndef JSONCONS_JSONPATCH_JSONPATCH_ERROR_HPP
+#define JSONCONS_JSONPATCH_JSONPATCH_ERROR_HPP
+
+#include <jsoncons/json_exception.hpp>
+#include <system_error>
+
+namespace jsoncons { namespace jsonpatch {
+
+    enum class jsonpatch_errc 
+    {
+        success = 0,
+        invalid_patch = 1,
+        test_failed,
+        add_failed,
+        remove_failed,
+        replace_failed,
+        move_failed,
+        copy_failed
+
+    };
+
+    class jsonpatch_error_category_impl
+       : public std::error_category
+    {
+    public:
+        const char* name() const noexcept override
+        {
+            return "jsoncons/jsonpatch";
+        }
+        std::string message(int ev) const override
+        {
+            switch (static_cast<jsonpatch_errc>(ev))
+            {
+                case jsonpatch_errc::invalid_patch:
+                    return "Invalid JSON Patch document";
+                case jsonpatch_errc::test_failed:
+                    return "JSON Patch test operation failed";
+                case jsonpatch_errc::add_failed:
+                    return "JSON Patch add operation failed";
+                case jsonpatch_errc::remove_failed:
+                    return "JSON Patch remove operation failed";
+                case jsonpatch_errc::replace_failed:
+                    return "JSON Patch replace operation failed";
+                case jsonpatch_errc::move_failed:
+                    return "JSON Patch move operation failed";
+                case jsonpatch_errc::copy_failed:
+                    return "JSON Patch copy operation failed";
+                default:
+                    return "Unknown JSON Patch error";
+            }
+        }
+    };
+
+    inline
+    const std::error_category& jsonpatch_error_category()
+    {
+      static jsonpatch_error_category_impl instance;
+      return instance;
+    }
+
+    inline 
+    std::error_code make_error_code(jsonpatch_errc result)
+    {
+        return std::error_code(static_cast<int>(result),jsonpatch_error_category());
+    }
+
+} // jsonpatch
+} // jsoncons
+
+namespace std {
+    template<>
+    struct is_error_code_enum<jsoncons::jsonpatch::jsonpatch_errc> : public true_type
+    {
+    };
+}
+
+namespace jsoncons { namespace jsonpatch {
+
+// allow to disable exceptions
+#if !defined(JSONCONS_NO_EXCEPTIONS)
+    #define JSONCONS_THROW(exception) throw exception
+    #define JSONCONS_RETHROW throw
+    #define JSONCONS_TRY try
+    #define JSONCONS_CATCH(exception) catch(exception)
+#else
+    #define JSONCONS_THROW(exception) std::terminate()
+    #define JSONCONS_RETHROW std::terminate()
+    #define JSONCONS_TRY if (true)
+    #define JSONCONS_CATCH(exception) if (false)
+#endif
+
+    class jsonpatch_error : public std::system_error, public virtual json_exception
+    {
+    public:
+        jsonpatch_error(const std::error_code& ec)
+            : std::system_error(ec)
+        {
+        }
+
+        jsonpatch_error(const jsonpatch_error& other) = default;
+
+        jsonpatch_error(jsonpatch_error&& other) = default;
+
+        jsonpatch_error& operator=(const jsonpatch_error& e) = default;
+        jsonpatch_error& operator=(jsonpatch_error&& e) = default;
+
+        const char* what() const noexcept override
+        {
+            return std::system_error::what();
+        }
+    };
+} // jsonpatch
+} // jsoncons
+
+#endif