From 4c6593faafa840119bb1c9259b6677ce6d24e4ec Mon Sep 17 00:00:00 2001
From: envis10n <envis10n@protonmail.com>
Date: Tue, 29 Jan 2019 20:56:55 -0600
Subject: [PATCH] Implement duk_is_error.

---
 src/lib.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 9c8ea83..d4603b6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -38,6 +38,14 @@ extern "C" {
         message: *const i8) -> duk_idx_t;
 }
 
+extern "C" {
+    /// Returns 1 if value at idx inherits from Error, otherwise returns 0. If idx is invalid, also returns 0.
+    pub fn duk_is_error(
+        ctx: *mut duk_context,
+        idx: duk_idx_t
+    ) -> duk_bool_t;
+}
+
 #[cfg(test)]
 mod tests {
     #[test]