about summary refs log tree commit diff
path: root/users/tazjin/rlox/src/bytecode/value.rs
diff options
context:
space:
mode:
authorVincent Ambo <mail@tazj.in>2021-02-28T13·28+0200
committertazjin <mail@tazj.in>2021-02-28T14·36+0000
commit2d9456d2474116d9a42213f692b13821eb28de81 (patch)
tree38dfd4cda140ad63f0f00185d4f80605905f49ad /users/tazjin/rlox/src/bytecode/value.rs
parent47ffa8071152bcafb4b6ff87a3142bf12dbce12b (diff)
feat(tazjin/rlox): Implement unary negation operator r/2253
Change-Id: I9a5bd3581d4ed05371651697ec496341eb7971ae
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2572
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
Diffstat (limited to 'users/tazjin/rlox/src/bytecode/value.rs')
-rw-r--r--users/tazjin/rlox/src/bytecode/value.rs10
1 files changed, 10 insertions, 0 deletions
diff --git a/users/tazjin/rlox/src/bytecode/value.rs b/users/tazjin/rlox/src/bytecode/value.rs
index 88ff8a695138..dcd238a7cd39 100644
--- a/users/tazjin/rlox/src/bytecode/value.rs
+++ b/users/tazjin/rlox/src/bytecode/value.rs
@@ -4,3 +4,13 @@ pub enum Value {
     Bool(bool),
     Number(f64),
 }
+
+impl Value {
+    pub fn is_falsey(&self) -> bool {
+        match self {
+            Value::Nil => true,
+            Value::Bool(false) => true,
+            _ => false,
+        }
+    }
+}