Add allocation-free 'Value::from_vec()'

minijinja/src/value/mod.rs

@@ -435,6 +435,28 @@ impl Value {
         ValueRepr::Dynamic(value as Arc<dyn Object>).into()
     }
 
+    /// Creates a value from a vector of values.
+    ///
+    /// Unlike the existing `TryFrom<Vec<T: Into<Value>>>`, this method involves
+    /// not additional allocations.
+    ///
+    /// ```rust
+    /// use std::sync::Arc;
+    /// # use minijinja::value::Value;
+    ///
+    /// let values = (0..10).into_iter()
+    ///     .map(Value::from)
+    ///     .collect::<Vec<_>>();
+    ///
+    /// let v = Value::from_vec(values);
+    ///
+    /// let values = Arc::new(vec![Value::from("hello")]);
+    /// let v = Value::from_vec(values);
+    /// ```
+    pub fn from_vec<V: Into<Arc<Vec<Value>>>>(values: V) -> Value {
+        ValueRepr::Seq(values.into()).into()
+    }
+
     /// Creates a callable value from a function.
     ///
     /// ```