Reducing boxing and sizes of Expr/Stmt.

2020-05-09 21:46:38 +08:00
parent 17e4adc049
commit a7bfac21bd
5 changed files with 851 additions and 891 deletions
--- a/src/token.rs
+++ b/src/token.rs
@@ -206,14 +206,14 @@ pub enum Token {

 impl Token {
    /// Get the syntax of the token.
-    pub fn syntax(&self) -> Cow<str> {
+    pub fn syntax(&self) -> Cow<'static, str> {
        use Token::*;

        match self {
            IntegerConstant(i) => i.to_string().into(),
            #[cfg(not(feature = "no_float"))]
            FloatConstant(f) => f.to_string().into(),
-            Identifier(s) => s.into(),
+            Identifier(s) => s.clone().into(),
            CharConstant(c) => c.to_string().into(),
            LexError(err) => err.to_string().into(),