From 854a3dff681fbc17c7d8cd9706274115efd07169 Mon Sep 17 00:00:00 2001
From: Anthony Ramine <n.oxyde@gmail.com>
Date: Sun, 28 Aug 2016 17:08:49 +0200
Subject: [PATCH] Assert that ImageData::data is not null

---
 components/script/dom/imagedata.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/script/dom/imagedata.rs b/components/script/dom/imagedata.rs
index abcb9b5640b..85376c0d4ad 100644
--- a/components/script/dom/imagedata.rs
+++ b/components/script/dom/imagedata.rs
@@ -37,6 +37,7 @@ impl ImageData {
         unsafe {
             let cx = global.get_cx();
             let js_object: *mut JSObject = JS_NewUint8ClampedArray(cx, width * height * 4);
+            assert!(!js_object.is_null());
 
             if let Some(vec) = data {
                 let mut is_shared = false;
@@ -58,6 +59,7 @@ impl ImageData {
             let mut is_shared = false;
             let data: *const uint8_t =
                 JS_GetUint8ClampedArrayData(self.Data(cx), &mut is_shared, ptr::null()) as *const uint8_t;
+            assert!(!data.is_null());
             assert!(!is_shared);
             let len = self.Width() * self.Height() * 4;
             slice::from_raw_parts(data, len as usize).to_vec()
@@ -82,6 +84,7 @@ impl ImageDataMethods for ImageData {
 
     // https://html.spec.whatwg.org/multipage/#dom-imagedata-data
     fn Data(&self, _: *mut JSContext) -> *mut JSObject {
+        assert!(!self.data.get().is_null());
         self.data.get()
     }
 }