2 files changed, 3 insertions, 5 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 52603a1..2f1a0d2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2018"
 crate-type = ["cdylib", "rlib"]
 
 [features]
-default = ["console_error_panic_hook"]
+default = ["console_error_panic_hook", "wee_alloc"]
 
 [dependencies]
 wasm-bindgen = "0.2.63"
@@ -22,4 +22,5 @@ wasm-bindgen-test = "0.3.13"
 
 [profile.release]
 # Tell `rustc` to optimize for small code size.
-opt-level = "s"
+opt-level = "z"
+lto = true
diff --git a/src/lib.rs b/src/lib.rs
index 9593d68..ba431d0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,7 +1,6 @@
 mod utils;
 
 use js_sys::Array;
-
 use syntax::{
     ast::{self, AstNode},
     NodeOrToken, SourceFile, SyntaxElement, SyntaxError, SyntaxNode,
@@ -10,8 +9,6 @@ use wasm_bindgen::prelude::*;
 
 use std::{convert::From, str::FromStr};
 
-// When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
-// allocator.
 #[cfg(feature = "wee_alloc")]
 #[global_allocator]
 static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;