3 files changed, 49 insertions, 2 deletions
diff --git a/mingling_core/src/program/error.rs b/mingling_core/src/program/error.rs
new file mode 100644
index 0000000..5e92a42
--- /dev/null
+++ b/mingling_core/src/program/error.rs
@@ -0,0 +1,22 @@
+use std::any::Any;
+use std::fmt;
+use thiserror::Error;
+
+/// Error type returned when a panic occurs during execution.
+#[derive(Error)]
+#[error("execution panicked: {payload:?}")]
+pub struct ProgramPanic {
+    pub payload: Box<dyn Any + Send>,
+}
+
+impl ProgramPanic {
+    pub fn new(payload: Box<dyn Any + Send>) -> Self {
+        ProgramPanic { payload }
+    }
+}
+
+impl fmt::Debug for ProgramPanic {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{:?}", self.payload)
+    }
+}
diff --git a/mingling_core/src/program/exec/error.rs b/mingling_core/src/program/exec/error.rs
index b4ff378..2d806dc 100644
--- a/mingling_core/src/program/exec/error.rs
+++ b/mingling_core/src/program/exec/error.rs
@@ -1,4 +1,4 @@
-use crate::error::ChainProcessError;
+use crate::error::{ChainProcessError, ProgramPanic};
 
 #[derive(thiserror::Error, Debug)]
 pub enum ProgramExecuteError {
@@ -8,6 +8,9 @@ pub enum ProgramExecuteError {
     #[error("No Renderer (`{0}`) Found")]
     RendererNotFound(String),
 
+    #[error("Panic: {0:?}")]
+    Panic(#[from] ProgramPanic),
+
     #[error("Other error: {0}")]
     Other(String),
 }
diff --git a/mingling_core/src/program/hook.rs b/mingling_core/src/program/hook.rs
index afc253c..080c00f 100644
--- a/mingling_core/src/program/hook.rs
+++ b/mingling_core/src/program/hook.rs
@@ -1,6 +1,6 @@
 use std::any::Any;
 
-use crate::{AnyOutput, Program, ProgramCollect, RenderResult};
+use crate::{AnyOutput, Program, ProgramCollect, RenderResult, error::ProgramPanic};
 
 #[derive(Default)]
 pub struct ProgramHook<C>
@@ -30,6 +30,9 @@ where
 
     /// Executes before the program ends
     pub finish: Option<fn() -> i32>,
+
+    /// Executes when the program panics
+    pub exec_panic: Option<fn(&ProgramPanic)>,
 }
 
 impl<C> Program<C>
@@ -126,6 +129,18 @@ where
         }
     }
 
+    pub(crate) fn run_hook_exec_panic(&self, panic_info: &ProgramPanic) {
+        if !self.user_context.run_hook {
+            return;
+        }
+
+        for hook in &self.hooks {
+            if let Some(exec_panic) = hook.exec_panic {
+                exec_panic(panic_info)
+            }
+        }
+    }
+
     pub(crate) fn run_hook_finish(&self) -> i32 {
         if !self.user_context.run_hook {
             return 0;
@@ -159,6 +174,7 @@ where
             pre_render: None,
             post_render: None,
             finish: None,
+            exec_panic: None,
         }
     }
 
@@ -209,4 +225,10 @@ where
         let _ = self.finish.insert(handler);
         self
     }
+
+    /// Sets the handler for the `exec_panic` event.
+    pub fn on_exec_panic(mut self, handler: fn(&ProgramPanic)) -> Self {
+        let _ = self.exec_panic.insert(handler);
+        self
+    }
 }