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querystring: move isHexTable to internal
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PR-URL: #12507
Reviewed-By: James M Snell <[email protected]>
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TimothyGu authored and evanlucas committed May 1, 2017
1 parent 72a3cac commit 0cc37c7
Showing 1 changed file with 20 additions and 0 deletions.
20 changes: 20 additions & 0 deletions lib/internal/querystring.js
Original file line number Diff line number Diff line change
Expand Up @@ -4,12 +4,32 @@ const hexTable = new Array(256);
for (var i = 0; i < 256; ++i)
hexTable[i] = '%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase();

const isHexTable = [
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0 - 15
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16 - 31
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 32 - 47
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 48 - 63
0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 64 - 79
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 80 - 95
0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 96 - 111
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 112 - 127
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 128 ...
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // ... 256
];

// Instantiating this is faster than explicitly calling `Object.create(null)`
// to get a "clean" empty object (tested with v8 v4.9).
function StorageObject() {}
StorageObject.prototype = Object.create(null);

module.exports = {
hexTable,
isHexTable,
StorageObject
};

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