1 files changed, 6 insertions, 0 deletions
diff --git a/src/com/craftinginterpreters/lox/LoxFunction.java b/src/com/craftinginterpreters/lox/LoxFunction.java
index fb3e8e3..371b822 100644
--- a/src/com/craftinginterpreters/lox/LoxFunction.java
+++ b/src/com/craftinginterpreters/lox/LoxFunction.java
@@ -11,6 +11,12 @@ class LoxFunction implements LoxCallable {
         this.declaration = declaration;
     }
 
+    LoxFunction bind(LoxInstance instance) {
+        Environment environment = new Environment(closure);
+        environment.define("this", instance);
+        return new LoxFunction(declaration, environment);
+    }
+
     @Override
     public int arity() {
         return declaration.params.size();