mirror of
https://github.com/gorhill/uBlock.git
synced 2024-09-03 09:39:38 +02:00
Avoid counting important
filters as two filters
Rearrange logic to instantiate and add `important` filters
to the block realm when compiled lists are loaded instead
of when lists are compiled.
Additionally, removed now unused properties following
commit 68e14793cc
.
This commit is contained in:
parent
6ebebbe23c
commit
54074af029
@ -619,9 +619,6 @@ registerFilterClass(FilterTrue);
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/******************************************************************************/
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// The only purpose of this class is so that the `important` filter
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// option is added to the logged raw filter.
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const FilterImportant = class {
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static match() {
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return ($isBlockImportant = true);
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@ -2633,10 +2630,8 @@ class FilterCompiler {
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this.tokenBeg = 0;
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this.typeBits = 0;
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this.notTypeBits = 0;
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this.firstWildcardPos = -1;
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this.secondWildcardPos = -1;
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this.firstCaretPos = -1;
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this.secondCaretPos = -1;
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this.wildcardPos = -1;
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this.caretPos = -1;
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return this;
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}
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@ -2941,19 +2936,11 @@ class FilterCompiler {
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}
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if ( this.parser.patternHasWildcard() ) {
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this.firstWildcardPos = pattern.indexOf('*');
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if ( this.firstWildcardPos !== -1 ) {
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this.secondWildcardPos =
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pattern.indexOf('*', this.firstWildcardPos + 1);
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}
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this.wildcardPos = pattern.indexOf('*');
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}
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if ( this.parser.patternHasCaret() ) {
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this.firstCaretPos = pattern.indexOf('^');
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if ( this.firstCaretPos !== -1 ) {
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this.secondCaretPos =
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pattern.indexOf('^', this.firstCaretPos + 1);
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}
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this.caretPos = pattern.indexOf('^');
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}
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if ( pattern.length > 1024 ) {
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@ -3252,20 +3239,6 @@ class FilterCompiler {
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: FilterCompositeAll.compile(units),
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writer
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);
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// Add block-important filters to the block realm, so as to avoid
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// to unconditionally match against the block-important realm for
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// every network request. Block-important filters are quite rare so
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// the block-important realm should be checked when and only when
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// there is a matched exception filter, which important filters are
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// meant to override.
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if ( (this.action & ActionBitsMask) === BlockImportant ) {
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this.action &= ~Important;
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this.compileToAtomicFilter(
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FilterCompositeAll.compile(units),
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writer
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);
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}
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}
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compilePattern(units) {
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@ -3281,14 +3254,14 @@ class FilterCompiler {
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units.push(FilterPatternGeneric.compile(this));
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return;
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}
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if ( this.firstWildcardPos === -1 && this.firstCaretPos === -1 ) {
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if ( this.wildcardPos === -1 && this.caretPos === -1 ) {
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units.push(FilterPatternPlain.compile(this));
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return;
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}
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// Optimize special case: plain pattern with trailing caret
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if (
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this.firstWildcardPos === -1 &&
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this.firstCaretPos === (this.pattern.length - 1)
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this.wildcardPos === -1 &&
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this.caretPos === (this.pattern.length - 1)
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) {
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this.pattern = this.pattern.slice(0, -1);
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units.push(FilterPatternPlain.compile(this));
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@ -3418,7 +3391,6 @@ FilterContainer.prototype.reset = function() {
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/******************************************************************************/
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FilterContainer.prototype.freeze = function() {
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const filterBucketId = FilterBucket.fid;
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const unserialize = CompiledListReader.unserialize;
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for ( const line of this.goodFilters ) {
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@ -3481,21 +3453,21 @@ FilterContainer.prototype.freeze = function() {
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urlTokenizer.addKnownToken(tokenHash);
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const inewunit = filterFromCompiled(fdata);
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this.addFilterUnit(bits, tokenHash, filterFromCompiled(fdata));
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if ( iunit === 0 ) {
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bucket.set(tokenHash, inewunit);
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continue;
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// Add block-important filters to the block realm, so as to avoid
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// to unconditionally match against the block-important realm for
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// every network request. Block-important filters are quite rare so
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// the block-important realm should be checked when and only when
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// there is a matched exception filter, which important filters are
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// meant to override.
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if ( (bits & ActionBitsMask) === BlockImportant ) {
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this.addFilterUnit(
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bits & ~Important,
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tokenHash,
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filterFromCompiled(fdata)
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);
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}
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if ( filterData[iunit+0] === filterBucketId ) {
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FilterBucket.unshift(iunit, inewunit);
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continue;
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}
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const ibucketunit = FilterBucket.create();
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FilterBucket.unshift(ibucketunit, iunit);
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FilterBucket.unshift(ibucketunit, inewunit);
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bucket.set(tokenHash, ibucketunit);
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this.unitsToOptimize.push({ bits, tokenHash });
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}
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this.badFilters.clear();
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@ -3517,6 +3489,35 @@ FilterContainer.prototype.freeze = function() {
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/******************************************************************************/
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FilterContainer.prototype.addFilterUnit = function(
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bits,
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tokenHash,
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inewunit
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) {
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let ibucket = this.bitsToBucketIndices[bits];
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if ( ibucket === 0 ) {
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ibucket = this.bitsToBucketIndices[bits] = this.buckets.length;
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this.buckets.push(new Map());
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}
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const bucket = this.buckets[ibucket];
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const istoredunit = bucket.get(tokenHash) || 0;
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if ( istoredunit === 0 ) {
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bucket.set(tokenHash, inewunit);
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return;
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}
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if ( filterData[istoredunit+0] === FilterBucket.fid ) {
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FilterBucket.unshift(istoredunit, inewunit);
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return;
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}
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const ibucketunit = FilterBucket.create();
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FilterBucket.unshift(ibucketunit, istoredunit);
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FilterBucket.unshift(ibucketunit, inewunit);
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bucket.set(tokenHash, ibucketunit);
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this.unitsToOptimize.push({ bits, tokenHash });
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};
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/******************************************************************************/
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FilterContainer.prototype.optimize = function(throttle = 0) {
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if ( this.optimizeTaskId !== undefined ) {
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dropTask(this.optimizeTaskId);
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