From a03b509fb85ee4fb3b397b3e279ca77d625bc5f6 Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Thu, 14 Jan 2021 03:15:25 +0300 Subject: refactor(tazjin/rlox): Constructor for interpreter with globals Change-Id: Id8242c22500c8e2781cc656d3faabb28d9bdf091 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2383 Reviewed-by: tazjin Tested-by: BuildkiteCI --- users/tazjin/rlox/src/interpreter.rs | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) (limited to 'users/tazjin/rlox/src/interpreter.rs') diff --git a/users/tazjin/rlox/src/interpreter.rs b/users/tazjin/rlox/src/interpreter.rs index 2ddbab7e1f29..5944bdfec8d9 100644 --- a/users/tazjin/rlox/src/interpreter.rs +++ b/users/tazjin/rlox/src/interpreter.rs @@ -118,12 +118,30 @@ fn identifier_str<'a>(name: &'a scanner::Token) -> Result<&'a str, Error> { } } -#[derive(Debug, Default)] +#[derive(Debug)] pub struct Interpreter { env: Rc>, } impl Interpreter { + /// Create a new interpreter and configure the initial global + /// variable set. + pub fn create() -> Self { + let mut globals = HashMap::new(); + + globals.insert( + "clock".into(), + Value::Callable(Callable::Builtin(&builtins::Clock {})), + ); + + Interpreter { + env: Rc::new(RwLock::new(Environment { + enclosing: None, + values: globals, + })), + } + } + // Environment modification helpers fn define_var(&mut self, name: &scanner::Token, value: Value) -> Result<(), Error> { self.env -- cgit 1.4.1