Add &str and &[T] From conversions

It made sense to avoid these in the past because they caused allocation.
However, in order to fix conversion mismatches with serde, we had to adopt
allocation. Since we have now accepted allocation, it now makes sense to
add these conversions for ergonomics.

Author: npmccallum

src/value/mod.rs

@@ -126,6 +126,13 @@ impl_from!(Value::Integer, u64);
 impl_from!(Value::Float, f32);
 impl_from!(Value::Float, f64);
 impl_from!(Value::Text, String);
+impl_from!(Value::Text, &str);
+
+impl<T: Clone> From<&[T]> for Value where Value: From<T> {
+    fn from(value: &[T]) -> Self {
+        Value::Array(value.iter().map(|x| Value::from(x.clone())).collect())
+    }
+}
 
 impl<T> From<Vec<T>> for Value where Value: From<T> {
     fn from(mut value: Vec<T>) -> Self {