Add lexer

1 files changed, 18 insertions, 0 deletions

diff --git a/compiler/src/lexer/error.rs b/compiler/src/lexer/error.rs
new file mode 100644
index 0000000..f251167
--- /dev/null
+++ b/compiler/src/lexer/error.rs
@@ -0,0 +1,18 @@
+use std::{error, fmt, result};
+
+pub type Result<T> = result::Result<T, Error>;
+
+#[derive(Debug, PartialEq, Eq)]
+pub enum Error {
+    UnclosedString,
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Error::UnclosedString => write!(f, "unclosed string literal"),
+        }
+    }
+}
+
+impl error::Error for Error {}