Ww/define space and dimension

Cargo.toml

@@ -6,3 +6,10 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+counter = "0.5.6"
+num-traits = "0.2.15"
+serde = { version = "1.0.145", features = ["derive"] }
+serde_json = "1.0.85"
+
+[dev-dependencies]
+rstest = "0.15.0"

src/dimension.rs

@@ -0,0 +1,20 @@
+use serde::Serialize;
+
+use crate::space::Space;
+
+#[derive(Clone, Debug, PartialEq, Serialize)]
+pub enum Dimension {
+    Integer { loc: i32 },
+    Real { loc: f64 },
+    Space(Space)
+}
+
+impl Dimension {
+    pub fn update(&self, dim: Dimension) -> Dimension {
+        match dim {
+            Dimension::Integer { loc: x } => Dimension::Integer { loc: x },
+            Dimension::Real { loc: x } => Dimension::Real { loc: x },
+            Dimension::Space(spc) => Dimension::Space(spc)
+        }
+    }
+}

src/lib.rs

@@ -0,0 +1,2 @@
+pub mod space;
+pub mod dimension;