1 files changed, 21 insertions, 0 deletions
diff --git a/src/com/craftinginterpreters/lox/Parser.java b/src/com/craftinginterpreters/lox/Parser.java
index 528326c..b6c134a 100644
--- a/src/com/craftinginterpreters/lox/Parser.java
+++ b/src/com/craftinginterpreters/lox/Parser.java
@@ -28,6 +28,8 @@ class Parser {
     }
 
     private Expr expression() {
+        if (match(FUN))
+            return lambda();
         return assignment();
     }
 
@@ -180,6 +182,25 @@ class Parser {
         return new Stmt.Function(name, parameters, body);
     }
 
+    private Expr.Lambda lambda() {
+        consume(LEFT_PAREN, "You can't see this message.");
+        List<Token> parameters = new ArrayList();
+        if (!check(RIGHT_PAREN)) {
+            do {
+                if (parameters.size() >= 255) {
+                    error(peek(), "Can't have more than 255 parameters.");
+                }
+
+                parameters.add(consume(IDENTIFIER, "Expect parameter name."));
+            } while (match(COMMA));
+        }
+        consume(RIGHT_PAREN, "Expect ')' after parameters.");
+
+        consume(LEFT_BRACE, "Expext '{' before lambda body.");
+        List<Stmt> body = block();
+        return new Expr.Lambda(parameters, body);
+    }
+
     private List<Stmt> block() {
         List<Stmt> statements = new ArrayList<>();