1 files changed, 0 insertions, 74 deletions
diff --git a/src/eval/none.rs b/src/eval/none.rs
deleted file mode 100644
index ab7644a7..00000000
--- a/src/eval/none.rs
+++ /dev/null
@@ -1,74 +0,0 @@
-use std::fmt::{self, Debug, Formatter};
-
-use super::{cast, CastInfo, FromValue, IntoValue, Reflect, Value};
-use crate::diag::StrResult;
-
-/// A value that indicates the absence of any other value.
-#[derive(Default, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
-pub struct NoneValue;
-
-impl Reflect for NoneValue {
-    fn describe() -> CastInfo {
-        CastInfo::Type("none")
-    }
-
-    fn castable(value: &Value) -> bool {
-        matches!(value, Value::None)
-    }
-}
-
-impl IntoValue for NoneValue {
-    fn into_value(self) -> Value {
-        Value::None
-    }
-}
-
-impl FromValue for NoneValue {
-    fn from_value(value: Value) -> StrResult<Self> {
-        match value {
-            Value::None => Ok(Self),
-            _ => Err(Self::error(&value)),
-        }
-    }
-}
-
-impl Debug for NoneValue {
-    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
-        f.pad("none")
-    }
-}
-
-cast! {
-    (),
-    self => Value::None,
-    _: NoneValue => (),
-}
-
-impl<T: Reflect> Reflect for Option<T> {
-    fn describe() -> CastInfo {
-        T::describe() + NoneValue::describe()
-    }
-
-    fn castable(value: &Value) -> bool {
-        NoneValue::castable(value) || T::castable(value)
-    }
-}
-
-impl<T: IntoValue> IntoValue for Option<T> {
-    fn into_value(self) -> Value {
-        match self {
-            Some(v) => v.into_value(),
-            None => Value::None,
-        }
-    }
-}
-
-impl<T: FromValue> FromValue for Option<T> {
-    fn from_value(value: Value) -> StrResult<Self> {
-        match value {
-            Value::None => Ok(None),
-            v if T::castable(&v) => Ok(Some(T::from_value(v)?)),
-            _ => Err(Self::error(&value)),
-        }
-    }
-}