diff options
Diffstat (limited to 'src/com/craftinginterpreters/lox/Environment.java')
-rw-r--r-- | src/com/craftinginterpreters/lox/Environment.java | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/com/craftinginterpreters/lox/Environment.java b/src/com/craftinginterpreters/lox/Environment.java index 634659b..8d8a374 100644 --- a/src/com/craftinginterpreters/lox/Environment.java +++ b/src/com/craftinginterpreters/lox/Environment.java @@ -14,6 +14,15 @@ class Environment { throw new RuntimeError(name, "Undefined variable '" + name.lexeme + "'."); } + void assign(Token name, Object value) { + if (values.containsKey(name.lexeme)) { + values.put(name.lexeme, value); + return; + } + + throw new RuntimeError(name, "Undefined variable '" + name.lexeme + "'."); + } + void define(String name, Object value) { values.put(name, value); } |