Merge pull request #539 from brave/speedup-cosmetic-filter-matching

Speed up cosmetic filters matching

Author: boocmp

src/cosmetic_filter_cache.rs

@@ -19,6 +19,7 @@ use crate::flatbuffers::containers::flat_map::FlatMapView;
 use crate::flatbuffers::containers::flat_multimap::FlatMultiMapView;
 use crate::flatbuffers::containers::hash_map::HashMapStringView;
 use crate::flatbuffers::containers::hash_set::HashSetView;
+use crate::flatbuffers::unsafe_tools::fb_vector_to_slice;
 use crate::resources::{PermissionMask, ResourceStorage};
 
 use crate::utils::Hash;
@@ -246,15 +247,15 @@ impl CosmeticFilterCache {
 
         let cosmetic_filters = self.filter_data_context.memory.root().cosmetic_filters();
         let hostname_rules_view = FlatMapView::new(
-            cosmetic_filters.hostname_index(),
+            fb_vector_to_slice(cosmetic_filters.hostname_index()),
             cosmetic_filters.hostname_values(),
         );
         let hostname_hide_view = FlatMultiMapView::new(
-            cosmetic_filters.hostname_hide_index(),
+            fb_vector_to_slice(cosmetic_filters.hostname_hide_index()),
             cosmetic_filters.hostname_hide_values(),
         );
         let hostname_inject_script_view = FlatMultiMapView::new(
-            cosmetic_filters.hostname_inject_script_index(),
+            fb_vector_to_slice(cosmetic_filters.hostname_inject_script_index()),
             cosmetic_filters.hostname_inject_script_values(),
         );