1 files changed, 22 insertions, 0 deletions
diff --git a/crates/shirabe-php-shim/src/lib.rs b/crates/shirabe-php-shim/src/lib.rs
index d1db732..a8793cf 100644
--- a/crates/shirabe-php-shim/src/lib.rs
+++ b/crates/shirabe-php-shim/src/lib.rs
@@ -65,6 +65,14 @@ pub struct Exception {
     pub code: i64,
 }
 
+impl std::fmt::Display for Exception {
+    fn fmt(&self, _f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        todo!()
+    }
+}
+
+impl std::error::Error for Exception {}
+
 #[derive(Debug)]
 pub struct RuntimeException {
     pub message: String,
@@ -77,6 +85,8 @@ impl std::fmt::Display for RuntimeException {
     }
 }
 
+impl std::error::Error for RuntimeException {}
+
 #[derive(Debug)]
 pub struct UnexpectedValueException {
     pub message: String,
@@ -89,6 +99,8 @@ impl std::fmt::Display for UnexpectedValueException {
     }
 }
 
+impl std::error::Error for UnexpectedValueException {}
+
 #[derive(Debug)]
 pub struct InvalidArgumentException {
     pub message: String,
@@ -101,6 +113,8 @@ impl std::fmt::Display for InvalidArgumentException {
     }
 }
 
+impl std::error::Error for InvalidArgumentException {}
+
 #[derive(Debug)]
 pub struct LogicException {
     pub message: String,
@@ -113,6 +127,8 @@ impl std::fmt::Display for LogicException {
     }
 }
 
+impl std::error::Error for LogicException {}
+
 #[derive(Debug)]
 pub struct BadMethodCallException {
     pub message: String,
@@ -125,6 +141,8 @@ impl std::fmt::Display for BadMethodCallException {
     }
 }
 
+impl std::error::Error for BadMethodCallException {}
+
 #[derive(Debug)]
 pub struct OutOfBoundsException {
     pub message: String,
@@ -137,6 +155,8 @@ impl std::fmt::Display for OutOfBoundsException {
     }
 }
 
+impl std::error::Error for OutOfBoundsException {}
+
 #[derive(Debug)]
 pub struct ErrorException {
     pub message: String,
@@ -152,6 +172,8 @@ impl std::fmt::Display for ErrorException {
     }
 }
 
+impl std::error::Error for ErrorException {}
+
 pub fn is_bool(_value: &PhpMixed) -> bool {
     todo!()
 }