add clang-tidy support

1 files changed, 44 insertions, 0 deletions

diff --git a/nihil.core/errc.ccm b/nihil.core/errc.ccm
new file mode 100644
index 0000000..c597faf
--- /dev/null
+++ b/nihil.core/errc.ccm
@@ -0,0 +1,44 @@
+/*
+ * This source code is released into the public domain.
+ */
+
+module;
+
+#include <string>
+#include <system_error>
+
+export module nihil.core:errc;
+
+namespace nihil {
+
+export enum struct errc {
+	no_error = 0,
+
+	/*
+	 * nihil.command
+	 */
+
+	incomplete_command,
+
+	/*
+	 * nihil.util
+	 */
+
+	// Empty string is not allowed.
+	empty_string,
+
+	// Invalid unit, e.g. in parse_size()
+	invalid_unit,
+};
+
+export [[nodiscard]] auto nihil_category() noexcept -> std::error_category &;
+export [[nodiscard]] auto make_error_condition(errc ec) -> std::error_condition;
+
+} // namespace nihil
+
+namespace std {
+
+export template<>
+struct is_error_condition_enum<nihil::errc> : true_type {};
+
+} // namespace std