Issue 2738 - Pass bit masks to matching functions

lib/filterComposer.js

Index: lib/filterComposer.js
diff --git a/lib/filterComposer.js b/lib/filterComposer.js
index 1eb31b9bc075ee67c5e6250f0089803616f155bc..12b260f76bf3c4077e53693a3295045accc4baf7 100644
--- a/lib/filterComposer.js
+++ b/lib/filterComposer.js
@@ -20,6 +20,7 @@
 let {extractHostFromFrame, stringifyURL, isThirdParty} = require("url");
 let {getKey, isFrameWhitelisted} = require("whitelisting");
 let {defaultMatcher} = require("matcher");
+let {RegExpFilter} = require("filterClasses");
 
 function escapeChar(chr)
 {
@@ -87,8 +88,9 @@ exports.composeFilters = function(details)
   let page = details.page;
   let frame = details.frame;
 
-  if (!isFrameWhitelisted(page, frame, "DOCUMENT"))
+  if (!isFrameWhitelisted(page, frame, RegExpFilter.typeMap.DOCUMENT))
   {
+    let typeMask = RegExpFilter.typeMap[details.type];
     let docDomain = extractHostFromFrame(frame);
 
     // Add a blocking filter for each URL of the element that can be blocked
@@ -98,7 +100,7 @@ exports.composeFilters = function(details)
       url = stringifyURL(urlObj);
 
       let filter = defaultMatcher.whitelist.matchesAny(
-        url, details.type, docDomain,
+        url, typeMask, docDomain,
         isThirdParty(urlObj, docDomain),
         getKey(page, frame)
       );
@@ -114,7 +116,7 @@ exports.composeFilters = function(details)
 
     // If we couldn't generate any blocking filters, fallback to element hiding
     let selectors = [];
-    if (filters.length == 0 && !isFrameWhitelisted(page, frame, "ELEMHIDE"))
+    if (filters.length == 0 && !isFrameWhitelisted(page, frame, RegExpFilter.typeMap.ELEMHIDE))
     {
       // Generate CSS selectors based on the element's "id" and "class" attribute
       if (details.id)