12.5 This

1 files changed, 11 insertions, 0 deletions

diff --git a/src/com/craftinginterpreters/lox/Resolver.java b/src/com/craftinginterpreters/lox/Resolver.java
index 649235a..f68e4dc 100644
--- a/src/com/craftinginterpreters/lox/Resolver.java
+++ b/src/com/craftinginterpreters/lox/Resolver.java
@@ -37,11 +37,16 @@ class Resolver implements Expr.Visitor<Void>, Stmt.Visitor<Void> {
         declare(stmt.name);
         define(stmt.name);
 
+        beginScope();
+        scopes.peek().put("this", true);
+
         for (Stmt.Function method : stmt.methods) {
             FunctionType declaration = FunctionType.METHOD;
             resolveFunction(method, declaration);
         }
 
+        endScope();
+
         return null;
     }
 
@@ -155,6 +160,12 @@ class Resolver implements Expr.Visitor<Void>, Stmt.Visitor<Void> {
     }
 
     @Override
+    public Void visitThisExpr(Expr.This expr) {
+        resolveLocal(expr, expr.keyword);
+        return null;
+    }
+
+    @Override
     public Void visitLogicalExpr(Expr.Logical expr) {
         resolve(expr.left);
         resolve(expr.right);