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/*******************************************************************************
ηMatrix - a browser extension to black/white list requests.
Copyright (C) 2014-2019 Raymond Hill
Copyright (C) 2019-2020 Alessio Vanni
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://gitlab.com/vannilla/ematrix
uMatrix Home: https://github.com/gorhill/uMatrix
*/
'use strict';
// Apparently, for this specific data structure using a constructor is
// faster than an object literal.
// I don't really believe it, but let's keep things as they are.
// Now a module to keep things more organized (might make things slower.)
var EXPORTED_SYMBOLS = ['RowSnapshot'];
var RowSnapshot = function (matrix, src, dest, domain) {
this.domain = domain;
this.temporary = matrix.tMatrix.evaluateRowZXY(src, dest);
this.permanent = matrix.pMatrix.evaluateRowZXY(src, dest);
this.counts = RowSnapshot.counts(matrix).slice();
this.totals = RowSnapshot.counts(matrix).slice();
};
RowSnapshot.memoizedCounts = undefined;
RowSnapshot.counts = function (matrix) {
if (RowSnapshot.memoizedCounts !== undefined) {
return RowSnapshot.memoizedCounts;
}
let aa = [];
let n = matrix.Matrix.columnHeaderIndices.size;
for (let i=0; i<n; ++i) {
aa[i] = 0;
}
RowSnapshot.memoizedCounts = aa;
return aa;
};
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