From 740a9a3565b3c30d8b667ff159b15d9f455e94b9 Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Thu, 14 Jan 2021 23:16:40 +0300 Subject: feat(tazjin/rlox): Implement support for closures Change-Id: I0ffc810807a1a6ec90455a4f2d2bd977833005bd Reviewed-on: https://cl.tvl.fyi/c/depot/+/2396 Reviewed-by: tazjin Tested-by: BuildkiteCI --- users/tazjin/rlox/src/interpreter/tests.rs | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'users/tazjin/rlox/src/interpreter/tests.rs') diff --git a/users/tazjin/rlox/src/interpreter/tests.rs b/users/tazjin/rlox/src/interpreter/tests.rs index 5bc9f0a0a475..875116593e44 100644 --- a/users/tazjin/rlox/src/interpreter/tests.rs +++ b/users/tazjin/rlox/src/interpreter/tests.rs @@ -76,3 +76,25 @@ add(1, 2, 3); assert_eq!(Value::Literal(Literal::Number(6.0)), result); } + +#[test] +fn test_closure() { + let result = parse_eval( + r#" +fun makeCounter() { + var i = 0; + fun count() { + i = i + 1; + } + + return count; +} + +var counter = makeCounter(); +counter(); // "1". +counter(); // "2". +"#, + ); + + assert_eq!(Value::Literal(Literal::Number(2.0)), result); +} -- cgit 1.4.1