From 24610688d30d4467b02b8c247bde6405f1b13577 Mon Sep 17 00:00:00 2001
From: Stephen Chung <Stephen.Chung@intexact.com>
Date: Thu, 20 Aug 2020 17:02:25 +0800
Subject: [PATCH] Fix no_std build.

---
 src/api.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/api.rs b/src/api.rs
index 8b91cd2a..852fd2a7 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -34,6 +34,7 @@ use crate::optimize::optimize_into_ast;
 use crate::stdlib::{
     any::{type_name, TypeId},
     boxed::Box,
+    string::ToString,
 };
 
 #[cfg(not(feature = "no_optimize"))]