1 files changed, 15 insertions, 0 deletions
diff --git a/src/error.rs b/src/error.rs
index aa9e9d6..96be297 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,6 +1,10 @@
+type ParseError<'a> =
+    lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'a>, &'a str>;
+
 #[derive(Debug)]
 pub enum Error {
     IO(std::io::Error),
+    Parse(String),
 }
 
 impl std::error::Error for Error { }
@@ -9,6 +13,7 @@ impl std::fmt::Display for Error {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
             Error::IO(e) => e.fmt(f),
+            Error::Parse(e) => e.fmt(f),
         }
     }
 }
@@ -18,6 +23,9 @@ impl std::cmp::PartialEq for Error {
         match (self, other) {
             (Error::IO(_), Error::IO(_)) =>
                 false,
+            (Error::Parse(_), Error::Parse(_)) =>
+                false,
+            _  => false,
         }
     }
 }
@@ -27,3 +35,10 @@ impl From<std::io::Error> for Error {
         Error::IO(e)
     }
 }
+
+impl From<ParseError<'_>> for Error {
+    fn from(e: ParseError<'_>) -> Error {
+        Error::Parse(format!("{}", e))
+    }
+}
+