1 files changed, 103 insertions, 0 deletions
diff --git a/include/jsoncons_ext/bson/bson_error.hpp b/include/jsoncons_ext/bson/bson_error.hpp
new file mode 100644
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--- /dev/null
+++ b/include/jsoncons_ext/bson/bson_error.hpp
@@ -0,0 +1,103 @@
+/// Copyright 2018 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_BSON_BSON_ERROR_HPP
+#define JSONCONS_BSON_BSON_ERROR_HPP
+
+#include <system_error>
+#include <jsoncons/config/jsoncons_config.hpp>
+
+namespace jsoncons { namespace bson {
+
+enum class bson_errc
+{
+    success = 0,
+    unexpected_eof = 1,
+    source_error,
+    invalid_utf8_text_string,
+    max_nesting_depth_exceeded,
+    string_length_is_non_positive,
+    length_is_negative,
+    number_too_large,
+    invalid_decimal128_string,
+    datetime_too_small,
+    datetime_too_large,
+    expected_bson_document,
+    invalid_regex_string,
+    size_mismatch,
+    unknown_type
+};
+
+class bson_error_category_impl
+   : public std::error_category
+{
+public:
+    const char* name() const noexcept override
+    {
+        return "jsoncons/bson";
+    }
+    std::string message(int ev) const override
+    {
+        switch (static_cast<bson_errc>(ev))
+        {
+            case bson_errc::unexpected_eof:
+                return "Unexpected end of file";
+            case bson_errc::source_error:
+                return "Source error";
+            case bson_errc::invalid_utf8_text_string:
+                return "Illegal UTF-8 encoding in text string";
+            case bson_errc::max_nesting_depth_exceeded:
+                return "Data item nesting exceeds limit in options";
+            case bson_errc::string_length_is_non_positive:
+                return "Request for the length of a string returned a non-positive result";
+            case bson_errc::length_is_negative:
+                return "Request for the length of a binary returned a negative result";
+            case bson_errc::unknown_type:
+                return "An unknown type was found in the stream";
+            case bson_errc::number_too_large:
+                return "Number too large";
+            case bson_errc::invalid_decimal128_string:
+                return "Invalid decimal128 string";
+            case bson_errc::datetime_too_large:
+                return "datetime too large";
+            case bson_errc::datetime_too_small:
+                return "datetime too small";
+            case bson_errc::expected_bson_document:
+                return "Expected BSON document";
+            case bson_errc::invalid_regex_string:
+                return "Invalid regex string";
+            case bson_errc::size_mismatch:
+                return "Document or array size doesn't match bytes read";
+            default:
+                return "Unknown BSON parser error";
+        }
+    }
+};
+
+inline
+const std::error_category& bson_error_category()
+{
+  static bson_error_category_impl instance;
+  return instance;
+}
+
+inline 
+std::error_code make_error_code(bson_errc result)
+{
+    return std::error_code(static_cast<int>(result),bson_error_category());
+}
+
+
+}}
+
+namespace std {
+    template<>
+    struct is_error_code_enum<jsoncons::bson::bson_errc> : public true_type
+    {
+    };
+}
+
+#endif