1 files changed, 26 insertions, 0 deletions
diff --git a/runtime/JavaScript/src/org/antlr/runtime/UnwantedTokenException.js b/runtime/JavaScript/src/org/antlr/runtime/UnwantedTokenException.js
new file mode 100755
index 0000000..9134e16
--- /dev/null
+++ b/runtime/JavaScript/src/org/antlr/runtime/UnwantedTokenException.js
@@ -0,0 +1,26 @@
+/** An extra token while parsing a TokenStream */
+org.antlr.runtime.UnwantedTokenException = function(expecting, input) {
+    if (arguments.length>0) {
+        org.antlr.runtime.UnwantedTokenException.superclass.constructor.call(
+                this, expecting, input);
+    }
+};
+
+org.antlr.lang.extend(
+    org.antlr.runtime.UnwantedTokenException,
+    org.antlr.runtime.MismatchedTokenException, {
+    getUnexpectedToken: function() {
+        return this.token;
+    },
+    toString: function() {
+        var exp = ", expected "+this.expecting;
+        if ( this.expecting===org.antlr.runtime.Token.INVALID_TOKEN_TYPE ) {
+            exp = "";
+        }
+        if ( !org.antlr.lang.isValue(this.token) ) {
+            return "UnwantedTokenException(found="+exp+")";
+        }
+        return "UnwantedTokenException(found="+this.token.getText()+exp+")";
+    },
+    name: "org.antlr.runtime.UnwantedTokenException"
+});