Initial commit

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -0,0 +1 @@
+/target

Cargo.toml

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+[package]
+name = "dict-rs"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

flake.lock

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+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1741379970,
+        "narHash": "sha256-Wh7esNh7G24qYleLvgOSY/7HlDUzWaL/n4qzlBePpiw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "36fd87baa9083f34f7f5027900b62ee6d09b1f2f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1741486734,
+        "narHash": "sha256-3hrpyTLNmnJpioVT1DDoVgsp7fWYkuS3JWCtfHsX1rk=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "d95582a900bd0e7e516ce3bed0503f742649fffb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = { self, nixpkgs, rust-overlay }:
+  let
+    inherit (nixpkgs) lib;
+
+    systems = [
+      "x86_64-linux"
+      "aarch64-linux"
+      "x86_64-darwin"
+      "aarch64-darwin"
+    ];
+
+    forAllSystems = f: lib.genAttrs systems (system: let
+      pkgs = import nixpkgs {
+        inherit system;
+        overlays = [
+          (import rust-overlay)
+        ];
+      };
+
+      rust-bin = rust-overlay.lib.mkRustBin { } pkgs.buildPackages;
+      toolchain = rust-bin.stable.latest.default.override {
+        extensions = [ "rust-src" "rust-analyzer" "rust-std" ];
+      };
+    in f system pkgs toolchain);
+  in {
+    devShells = forAllSystems (system: pkgs: toolchain: {
+      default = pkgs.mkShell {
+        nativeBuildInputs = [
+          toolchain
+        ];
+
+        RUST_SRC_PATH = "${toolchain}/lib/rustlib/src/rust/library";
+      };
+    });
+  };
+}

src/lib.rs

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+pub fn add(left: u64, right: u64) -> u64 {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}