Merge pull request #48 from Vam-Jam/decimal-deref

Decimal implements Deref

shopify_function/src/scalars/decimal.rs

@@ -1,5 +1,5 @@
 use serde::{Deserialize, Serialize};
-use std::str::FromStr;
+use std::{ops::Deref, str::FromStr};
 
 /// Convenience wrapper for converting between Shopify's `Decimal` scalar, which
 /// is serialized as a `String`, and Rust's `f64`.
@@ -15,6 +15,14 @@ impl Decimal {
     }
 }
 
+impl Deref for Decimal {
+    type Target = f64;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
 impl TryFrom<String> for Decimal {
     type Error = std::num::ParseFloatError;