From 5ccc6e5ec8a433f68bfeb17e8dcedec5b62a36a9 Mon Sep 17 00:00:00 2001
From: Nathan Reiner <nathan@nathanreiner.xyz>
Date: Wed, 17 Jan 2024 18:24:21 +0100
Subject: First sketch of matheval

---
 src/operation.rs | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 src/operation.rs

(limited to 'src/operation.rs')

diff --git a/src/operation.rs b/src/operation.rs
new file mode 100644
index 0000000..861fb5a
--- /dev/null
+++ b/src/operation.rs
@@ -0,0 +1,30 @@
+
+pub type Operator = dyn Fn(f64, f64) -> f64;
+
+pub struct Operation {
+    sign: char,
+    func: Box<Operator>
+}
+
+impl Operation {
+    pub fn new(sign: char, func: Box<Operator>) -> Self {
+        Self { sign, func }
+    }
+
+    pub fn sign(&self) -> char {
+        self.sign
+    }
+
+    pub fn evaluate(&self, a: f64, b: f64) -> f64 {
+        (self.func)(a, b)
+    }
+}
+
+#[macro_export]
+macro_rules! opvec {
+    ($(($x:expr, $y:expr)), *) => {
+        vec![$(
+            Operation::new($x, Box::new($y)),
+        )*]
+    };
+}
-- 
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