Rust 2021

- Consts map generated using iterators

ablescript/Cargo.toml

@@ -2,7 +2,7 @@
 name = "ablescript"
 version = "0.2.0"
 authors = ["able <abl3theabove@gmail.com>"]
-edition = "2018"
+edition = "2021"
 
 description = "The best programming language"
 license = "MIT"

ablescript/src/consts.rs

@@ -9,8 +9,7 @@ use crate::variables::{Value, Variable};
 pub fn ablescript_consts() -> HashMap<String, Variable> {
     use Value::*;
 
-    let mut map = HashMap::new();
-    for (name, value) in &[
+    [
         ("TAU", Int(6)),                  // Circumference / radius
         ("PI", Int(3)),                   // Deprecated, do not use
         ("EULER", Int(3)),                // Mathematical constant e
@@ -31,11 +30,10 @@ pub fn ablescript_consts() -> HashMap<String, Variable> {
         ),
         ("OCTOTHORPE", Str("#".to_owned())), // It's an octothorpe
         ("ANSWER", Int(ANSWER)),
-    ] {
-        map.insert((*name).to_owned(), Variable::from_value(value.to_owned()));
-    }
-
-    map
+    ]
+    .into_iter()
+    .map(|(name, value)| (name.to_owned(), Variable::from_value(value)))
+    .collect()
 }
 
 pub const ANSWER: isize = 42;

ablescript_cli/Cargo.toml

@@ -2,7 +2,7 @@
 name = "ablescript_cli"
 version = "0.2.0"
 authors = ["able <abl3theabove@gmail.com>"]
-edition = "2018"
+edition = "2021"
 
 description = "The best programming language"
 license = "MIT"