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Changeset: Check .hasNext() before calling .next()

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This commit is contained in:
Richard Hansen 2021-09-30 13:39:02 -04:00
parent 1955e7b263
commit 44d99733c6
3 changed files with 6 additions and 4 deletions
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4
src/static/js/Changeset.js
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@ -2072,7 +2072,9 @@ exports.inverse = (cs, lines, alines, pool) => {
curLineNextOp.chars = 0;
curLineOpIter = exports.opIterator(alinesGet(curLine));
}
if (!curLineNextOp.chars) curLineNextOp = curLineOpIter.next();
if (!curLineNextOp.chars) {
curLineNextOp = curLineOpIter.hasNext() ? curLineOpIter.next() : exports.newOp();
}
const charsToUse = Math.min(numChars, curLineNextOp.chars);
func(charsToUse, curLineNextOp.attribs, charsToUse === curLineNextOp.chars &&
curLineNextOp.lines > 0);