From 2972599ee3aa5d0a385faf2cbc043aa8a1021aa2 Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Mon, 20 Aug 2018 14:14:55 -0700
Subject: [PATCH] Fix some mistakes from `WeakRef` support

* Be sure to free the pointer, not `this.ptr` which is always 0
* Unconditionally attempt to free data and let Rust throw an exception if it's
  null
---
 crates/cli-support/src/js/mod.rs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/crates/cli-support/src/js/mod.rs b/crates/cli-support/src/js/mod.rs
index 4e4b5ca6..357c3837 100644
--- a/crates/cli-support/src/js/mod.rs
+++ b/crates/cli-support/src/js/mod.rs
@@ -650,11 +650,9 @@ impl<'a> Context<'a> {
         dst.push_str(&format!(
             "
             free() {{
-                if (this.ptr === 0)
-                    return;
                 const ptr = this.ptr;
                 this.ptr = 0;
-                free{}(this.ptr);
+                free{}(ptr);
             }}
             ",
             name,