Chapter 8: Add blocks and scopes

1 files changed, 13 insertions, 0 deletions

diff --git a/src/com/craftinginterpreters/lox/Parser.java b/src/com/craftinginterpreters/lox/Parser.java
index 9e76a54..f044feb 100644
--- a/src/com/craftinginterpreters/lox/Parser.java
+++ b/src/com/craftinginterpreters/lox/Parser.java
@@ -45,6 +45,8 @@ class Parser {
     private Stmt statement() {
         if (match(PRINT))
             return printStatement();
+        if (match(LEFT_BRACE))
+            return new Stmt.Block(block());
 
         return expressionStatement();
     }
@@ -73,6 +75,17 @@ class Parser {
         return new Stmt.Expression(expr);
     }
 
+    private List<Stmt> block() {
+        List<Stmt> statements = new ArrayList<>();
+
+        while (!check(RIGHT_BRACE) && !isAtEnd()) {
+            statements.add(declaration());
+        }
+
+        consume(RIGHT_BRACE, "Expect '}' after block.");
+        return statements;
+    }
+
     private Expr assignment() {
         Expr expr = equality();