Unreachable statement

1 files changed, 4 insertions, 0 deletions

diff --git a/src/error.rs b/src/error.rs
index d79a5fb..abf8810 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -8,6 +8,7 @@ pub enum ErrorKind {
     TypeError(Op, Vec<Value>),
     AssertFailed(Value, Value),
     InvalidProgram,
+    Unreachable,
 
     SyntaxError(usize, Token),
 }
@@ -35,6 +36,9 @@ impl fmt::Display for ErrorKind {
             ErrorKind::SyntaxError(line, token) => {
                 write!(f, "Syntax error on line {} at token {:?}", line, token)
             }
+            ErrorKind::Unreachable => {
+                write!(f, "Reached unreachable code.")
+            }
             ErrorKind::InvalidProgram => {
                 write!(f, "[!!!] Invalid program")
             }