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Add filterClassHistogram() method to µBlock.staticNetFilteringEngine

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    µBlock.staticNetFilteringEngine.filterClassHistogram()
This commit is contained in:
Raymond Hill 2019-04-16 19:01:14 -04:00
parent 4940cda154
commit 34f3cfe5e7
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1 changed files with 46 additions and 0 deletions
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src/js/static-net-filtering.js
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@ -2885,6 +2885,52 @@ FilterContainer.prototype.bucketHistogram = function() {
/******************************************************************************/
FilterContainer.prototype.filterClassHistogram = function() {
const filterClassDetails = new Map();
for ( let i = 0; i < filterClasses.length; i++ ) {
filterClassDetails.set(i, { name: filterClasses[i].name, count: 0, });
}
// Artificial classes to report content of tries
filterClassDetails.set(1000, { name: 'FilterPrefix1Trie', count: 0, });
filterClassDetails.set(1001, { name: 'FilterHnAnchoredTrie', count: 0, });
const countFilter = function(f) {
if ( f instanceof Object === false ) { return; }
filterClassDetails.get(f.fid).count += 1;
if ( f.wrapped ) {
countFilter(f.wrapped);
}
};
for ( const category of this.categories.values() ) {
for ( const f of category.values() ) {
countFilter(f);
if ( f instanceof FilterBucket ) {
for ( const g of f.filters ) { countFilter(g); }
if ( f.plainPrefix1Trie !== null ) {
filterClassDetails.get(1000).count += f.plainPrefix1Trie.size;
}
if ( f.plainHnAnchoredTrie !== null ) {
filterClassDetails.get(1001).count += f.plainHnAnchoredTrie.size;
}
continue;
}
if ( f instanceof FilterPair ) {
countFilter(f.f1);
countFilter(f.f2);
continue;
}
}
}
const results = Array.from(filterClassDetails.values()).sort((a, b) => {
return b.count - a.count;
});
console.log(results);
};
/******************************************************************************/
return new FilterContainer();
/******************************************************************************/