added builtins.add

README.md

@@ -53,7 +53,7 @@ implemented.
  statement, functions
  - 🌕 stage 1: lazy evaluation
  - 🌘 stage 2:
- - 🌘 built-in functions (progress: 2 out of 111)
+ - 🌘 built-in functions (progress: 3 out of 111)
  - 🌑 derivations (hello world derivation)
  - 🌑 stage 3: full implementation (all derivations in nixpkgs, nice error
  messages, etc.)

rust-toolchain.toml

@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.70.0"
+channel = "1.71.0"
 components = [ "clippy", "rust-analyzer", "rustfmt" ]
 profile = "minimal"

src/eval/nix_v8.rs

@@ -1227,23 +1227,28 @@ mod tests {
  assert_eq!(eval_ok(r#"rec { a = "b"; ${a} = 1; }.b"#), Value::Int(1));
  }
 
- #[test]
- fn test_eval_builtin_head() {
- assert_eq!(eval_ok("builtins.head [ 1 2 ]"), Value::Int(1));
- }
-
  #[test]
  fn test_eval_lists_are_lazy() {
  assert_eq!(eval_ok("builtins.head [ 1 (1 / 0) ]"), Value::Int(1));
  }
 
  #[test]
- fn test_eval_abort() {
+ fn test_eval_builtin_abort() {
  let error_msg = evaluate(r#"abort "foo""#).unwrap_err();
  let expected_msg = "Evaluation aborted with the following error message: 'foo'";
  assert!(
  error_msg.contains(expected_msg),
  "Error message '{error_msg}' didn't contain '{expected_msg}'."
  );
  }
+
+ #[test]
+ fn test_eval_builtin_add() {
+ assert_eq!(eval_ok("builtins.add 1 2"), Value::Int(3));
+ }
+
+ #[test]
+ fn test_eval_builtin_head() {
+ assert_eq!(eval_ok("builtins.head [ 1 2 ]"), Value::Int(1));
+ }
 }