From 247ea628fb606a18e59b7abadc1493cde95ad98a Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Wed, 4 Jul 2018 08:50:48 -0700
Subject: [PATCH] Don't import wasm in generated JS if it's not used

Mostly just an edge case
---
 crates/cli-support/src/js/mod.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crates/cli-support/src/js/mod.rs b/crates/cli-support/src/js/mod.rs
index d9cadf02..941d7a93 100644
--- a/crates/cli-support/src/js/mod.rs
+++ b/crates/cli-support/src/js/mod.rs
@@ -410,7 +410,9 @@ impl<'a> Context<'a> {
                         .unwrap_or("wasm_bindgen"),
             )
         } else {
-            let import_wasm = if self.config.nodejs {
+            let import_wasm = if self.globals.len() == 0 {
+                String::new()
+            } else if self.config.nodejs {
                 self.footer
                     .push_str(&format!("wasm = require('./{}_bg');", module_name));
                 format!("var wasm;")