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Store generic pattern string into bidi-trie buffer

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This commit is contained in:
Raymond Hill 2021-12-08 10:26:52 -05:00
parent 92ad101557
commit 2b2af1f20d
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GPG Key ID: 25E1490B761470C2
1 changed files with 21 additions and 15 deletions
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36
src/js/static-net-filtering.js
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@ -768,10 +768,16 @@ registerFilterClass(FilterPatternPlainX);
const FilterPatternGeneric = class {
static match(idata) {
const refs = filterRefs[filterData[idata+2]];
const refs = filterRefs[filterData[idata+4]];
if ( refs.$re === null ) {
refs.$re = new RegExp(
restrFromGenericPattern(refs.s, filterData[idata+1])
restrFromGenericPattern(
bidiTrie.extractString(
filterData[idata+1],
filterData[idata+2]
),
filterData[idata+3]
)
);
}
return refs.$re.test($requestURL);
@ -788,13 +794,12 @@ const FilterPatternGeneric = class {
}
static fromCompiled(args) {
const idata = filterDataAllocLen(3);
filterData[idata+0] = args[0]; // fid
filterData[idata+1] = args[2]; // anchor
filterData[idata+2] = filterRefAdd({
s: args[1],
$re: null,
});
const idata = filterDataAllocLen(5);
filterData[idata+0] = args[0]; // fid
filterData[idata+1] = bidiTrie.storeString(args[1]); // i
filterData[idata+2] = args[1].length; // n
filterData[idata+3] = args[2]; // anchor
filterData[idata+4] = filterRefAdd({ $re: null });
return idata;
}
@ -804,21 +809,22 @@ const FilterPatternGeneric = class {
static logData(idata, details) {
details.pattern.length = 0;
const anchor = filterData[idata+1];
const anchor = filterData[idata+3];
if ( (anchor & 0b100) !== 0 ) {
details.pattern.push('||');
} else if ( (anchor & 0b010) !== 0 ) {
details.pattern.push('|');
}
const refs = filterRefs[filterData[idata+2]];
details.pattern.push(refs.s);
const s = bidiTrie.extractString(
filterData[idata+1],
filterData[idata+2]
);
details.pattern.push(s);
if ( (anchor & 0b001) !== 0 ) {
details.pattern.push('|');
}
details.regex.length = 0;
details.regex.push(
restrFromGenericPattern(refs.s, anchor & ~0b100)
);
details.regex.push(restrFromGenericPattern(s, anchor & ~0b100));
}
};