feat(tazjin/rlox): Global variable assignment r/2977

Needed for example code compatibility.

Change-Id: Id83210eaaad7dcfef5aa238dd3a7ec159f6935e9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3684
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>

1 files changed, 14 insertions, 1 deletions

diff --git a/users/tazjin/rlox/src/bytecode/tests.rs b/users/tazjin/rlox/src/bytecode/tests.rs
index d5b6ab020389..13e64400ade5 100644
--- a/users/tazjin/rlox/src/bytecode/tests.rs
+++ b/users/tazjin/rlox/src/bytecode/tests.rs
@@ -110,7 +110,7 @@ fn strings() {
 }
 
 #[test]
-fn variables() {
+fn global_variables() {
     expect_num("var a = 5; a;", 5.0);
     expect_num("var a = 5; var b = 2; a * b;", 10.0);
     expect_str(
@@ -118,3 +118,16 @@ fn variables() {
         "hello Zubnog",
     );
 }
+
+#[test]
+fn global_assignment() {
+    expect_str(
+        r#"
+          var breakfast = "beignets";
+          var beverage = "cafe au lait";
+          breakfast = "beignets with " + beverage;
+          breakfast;
+        "#,
+        "beignets with cafe au lait"
+    );
+}