initial matador ng commit

source/orm/sql/error_code.cpp

@@ -0,0 +1,59 @@
+#include "matador/sql/error_code.hpp"
+
+namespace matador::sql {
+
+const char * sql_category_impl::name() const noexcept {
+  return "sql";
+}
+
+std::string sql_category_impl::message(const int ev) const {
+  switch (static_cast<error_code>(ev)) {
+    case error_code::OK:
+      return "OK";
+    case error_code::INVALID_QUERY:
+      return "Invalid query";
+    case error_code::UNKNOWN_TABLE:
+      return "Unknown table";
+    case error_code::UNKNOWN_COLUMN:
+      return "Unknown column";
+    case error_code::BIND_FAILED:
+      return "Bind failed";
+    case error_code::EXECUTE_FAILED:
+      return "Execute failed";
+    case error_code::FETCH_FAILED:
+      return "Fetch failed";
+    case error_code::PREPARE_FAILED:
+      return "Prepare failed";
+    case error_code::DESCRIBE_FAILED:
+      return "Describe failed";
+    case error_code::TABLE_EXISTS_FAILED:
+      return "Table exists failed";
+    case error_code::RETRIEVE_DATA_FAILED:
+      return "Retrieve data failed";
+    case error_code::RESET_FAILED:
+      return "Reset failed";
+    case error_code::OPEN_ERROR:
+      return "Open failed";
+    case error_code::CLOSE_ERROR:
+      return "Close failed";
+    case error_code::FAILURE:
+      return "Failure";
+    default:
+      return "Unknown error";
+  }
+}
+
+const std::error_category & sql_category() {
+  static sql_category_impl instance;
+  return instance;
+}
+
+std::error_code make_error_code(error_code e) {
+  return {static_cast<int>(e), sql_category()};
+}
+
+std::error_condition make_error_condition(error_code e) {
+  return {static_cast<int>(e), sql_category()};
+}
+
+}