diff options
Diffstat (limited to 'src/com/craftinginterpreters/lox/LoxFunction.java')
-rw-r--r-- | src/com/craftinginterpreters/lox/LoxFunction.java | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/src/com/craftinginterpreters/lox/LoxFunction.java b/src/com/craftinginterpreters/lox/LoxFunction.java deleted file mode 100644 index 07dd727..0000000 --- a/src/com/craftinginterpreters/lox/LoxFunction.java +++ /dev/null @@ -1,52 +0,0 @@ -package com.craftinginterpreters.lox; - -import java.util.List; - -class LoxFunction implements LoxCallable { - private final Stmt.Function declaration; - private final Environment closure; - private final boolean isInitializer; - - LoxFunction(Stmt.Function declaration, Environment closure, boolean isInitializer) { - this.isInitializer = isInitializer; - this.closure = closure; - this.declaration = declaration; - } - - LoxFunction bind(LoxInstance instance) { - Environment environment = new Environment(closure); - environment.define("this", instance); - return new LoxFunction(declaration, environment, isInitializer); - } - - @Override - public int arity() { - return declaration.params.size(); - } - - @Override - public Object call(Interpreter interpreter, List<Object> arguments) { - Environment environment = new Environment(closure); - - for (int i = 0; i < declaration.params.size(); i++) { - environment.define(declaration.params.get(i).lexeme, arguments.get(i)); - } - - try { - interpreter.executeBlock(declaration.body, environment); - } catch (Return returnValue) { - if (isInitializer) - return closure.getAt(0, "this"); - return returnValue.value; - } - - if (isInitializer) - return closure.getAt(0, "this"); - return null; - } - - @Override - public String toString() { - return "<fn " + declaration.name.lexeme + ">"; - } -} |