replaced some Strings with SmolStr

interpreter/src/class.rs

@@ -29,7 +29,7 @@ impl LoxClass {
 
         // if class has an init method: insert an implicit "return this;" at its end
         if let Some(Value::Function(init)) = methods.get("init") {
-            let name = init.name().to_owned();
+            let name = init.name().clone();
             let closure = init.closure().clone();
             let param_names = init.param_names().to_vec();
             let mut body = init.body().clone();
@@ -74,7 +74,7 @@ impl LoxClass {
         self.superclass.clone()
     }
 
-    pub fn name(&self) -> &str {
+    pub fn name(&self) -> &SmolStr {
         &self.name
     }
 

interpreter/src/error.rs

@@ -28,7 +28,7 @@ pub enum RuntimeError {
     NotCallable { callee: Value },
     #[error("{name}() takes {arity} args, but {given} were given.")]
     WrongArity {
-        name: String,
+        name: SmolStr,
         arity: usize,
         given: usize,
     },

interpreter/src/function.rs

@@ -4,11 +4,10 @@ use std::rc::Rc;
 use rlox2_frontend::parser::Stmt;
 use smol_str::SmolStr;
 
-use crate::environment::{ClosureScope, HeapedValue};
-
 use super::environment::Environment;
 use super::interpreter::EvalResult;
 use super::{Runtime, Value};
+use crate::environment::{ClosureScope, HeapedValue};
 
 #[derive(Debug, Clone)]
 pub struct LoxFunction {
@@ -35,7 +34,7 @@ impl LoxFunction {
         Rc::new(fun)
     }
 
-    pub fn name(&self) -> &str {
+    pub fn name(&self) -> &SmolStr {
         &self.name
     }
 
@@ -85,13 +84,13 @@ pub type ExternFunClosure = fn(Vec<Value>, &mut Environment) -> EvalResult<Value
 
 #[derive(Clone)]
 pub struct LoxExternFunction {
-    name: String,
+    name: SmolStr,
     arity: usize,
     closure: ExternFunClosure,
 }
 
 impl LoxExternFunction {
-    pub fn new(name: impl Into<String>, arity: usize, closure: ExternFunClosure) -> Self {
+    pub fn new(name: impl Into<SmolStr>, arity: usize, closure: ExternFunClosure) -> Self {
         let name = name.into();
 
         LoxExternFunction {
@@ -101,7 +100,7 @@ impl LoxExternFunction {
         }
     }
 
-    pub fn name(&self) -> &str {
+    pub fn name(&self) -> &SmolStr {
         &self.name
     }
 

interpreter/src/interpreter.rs

@@ -215,7 +215,7 @@ impl Eval for Expr {
                     let method = method_expr.eval(env)?;
 
                     if let Value::Function(ref fun) = method {
-                        let name = fun.name().into();
+                        let name = fun.name().clone();
                         methods.insert(name, method);
                     }
                 }
@@ -322,7 +322,7 @@ pub fn call_fun(fun: Rc<LoxFunction>, env: &mut Environment) -> EvalResult<Value
 
     env.enter_scope()?;
 
-    env.define(fun.name(), Value::Function(Rc::clone(&fun)));
+    env.define(fun.name().clone(), Value::Function(Rc::clone(&fun)));
 
     env.insert_closure(fun.closure().clone());