From 56bd0789af7b11bcc15dc901745f61b83b1f7ff3 Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott.shawcroft@gmail.com>
Date: Tue, 23 Jan 2018 15:59:26 -0800
Subject: Speed up qstr loading by using the stack to store a temporary string
 instead of the heap.

---
 py/persistentcode.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'py/persistentcode.c')

diff --git a/py/persistentcode.c b/py/persistentcode.c
index 477ba7501..ba126a3fb 100644
--- a/py/persistentcode.c
+++ b/py/persistentcode.c
@@ -124,10 +124,9 @@ STATIC size_t read_uint(mp_reader_t *reader) {
 
 STATIC qstr load_qstr(mp_reader_t *reader) {
     size_t len = read_uint(reader);
-    char *str = m_new(char, len);
+    char str[len];
     read_bytes(reader, (byte*)str, len);
     qstr qst = qstr_from_strn(str, len);
-    m_del(char, str, len);
     return qst;
 }
 
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