1 files changed, 17 insertions, 0 deletions
diff --git a/src/errors.rs b/src/errors.rs
new file mode 100644
index 0000000..8a20863
--- /dev/null
+++ b/src/errors.rs
@@ -0,0 +1,17 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum DiceError {
+    #[error("解析错误: {0}")]
+    ParseError(String),
+    #[error("计算错误: {0}")]
+    CalculationError(String),
+    #[error("无效的骰子表达式: {0}")]
+    InvalidExpression(String),
+}
+
+impl std::convert::From<DiceError> for pyo3::PyErr {
+    fn from(err: DiceError) -> pyo3::PyErr {
+        pyo3::PyErr::new::<pyo3::exceptions::PyValueError, _>(err.to_string())
+    }
+}