From af300f36f11293c12f2ee01580fc749a7e114376 Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Fri, 16 Mar 2018 11:35:57 +0100
Subject: Bug 755821: Function() should use the parser's argument parsing code

---
 dom/events/EventListenerManager.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'dom')

diff --git a/dom/events/EventListenerManager.cpp b/dom/events/EventListenerManager.cpp
index c8db4f2a1..a8c48ede8 100644
--- a/dom/events/EventListenerManager.cpp
+++ b/dom/events/EventListenerManager.cpp
@@ -996,14 +996,12 @@ EventListenerManager::CompileEventHandlerInternal(Listener* aListener,
   }
   aListener = nullptr;
 
-  uint32_t lineNo = 0;
   nsAutoCString url (NS_LITERAL_CSTRING("-moz-evil:lying-event-listener"));
   MOZ_ASSERT(body);
   MOZ_ASSERT(aElement);
   nsIURI *uri = aElement->OwnerDoc()->GetDocumentURI();
   if (uri) {
     uri->GetSpec(url);
-    lineNo = 1;
   }
 
   nsCOMPtr<nsPIDOMWindowInner> win = do_QueryInterface(mTarget);
@@ -1073,8 +1071,9 @@ EventListenerManager::CompileEventHandlerInternal(Listener* aListener,
     return NS_ERROR_FAILURE;
   }
   JS::CompileOptions options(cx);
+  // Use line 0 to make the function body starts from line 1.
   options.setIntroductionType("eventHandler")
-         .setFileAndLine(url.get(), lineNo)
+         .setFileAndLine(url.get(), 0)
          .setVersion(JSVERSION_DEFAULT)
          .setElement(&v.toObject())
          .setElementAttributeName(jsStr);
-- 
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