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codeql-action/node_modules/diff/lib/util/distance-iterator.js
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/*istanbul ignore start*/ | |
"use strict"; | |
Object.defineProperty(exports, "__esModule", { | |
value: true | |
}); | |
exports["default"] = _default; | |
/*istanbul ignore end*/ | |
// Iterator that traverses in the range of [min, max], stepping | |
// by distance from a given start position. I.e. for [0, 4], with | |
// start of 2, this will iterate 2, 3, 1, 4, 0. | |
function | |
/*istanbul ignore start*/ | |
_default | |
/*istanbul ignore end*/ | |
(start, minLine, maxLine) { | |
var wantForward = true, | |
backwardExhausted = false, | |
forwardExhausted = false, | |
localOffset = 1; | |
return function iterator() { | |
if (wantForward && !forwardExhausted) { | |
if (backwardExhausted) { | |
localOffset++; | |
} else { | |
wantForward = false; | |
} // Check if trying to fit beyond text length, and if not, check it fits | |
// after offset location (or desired location on first iteration) | |
if (start + localOffset <= maxLine) { | |
return localOffset; | |
} | |
forwardExhausted = true; | |
} | |
if (!backwardExhausted) { | |
if (!forwardExhausted) { | |
wantForward = true; | |
} // Check if trying to fit before text beginning, and if not, check it fits | |
// before offset location | |
if (minLine <= start - localOffset) { | |
return -localOffset++; | |
} | |
backwardExhausted = true; | |
return iterator(); | |
} // We tried to fit hunk before text beginning and beyond text length, then | |
// hunk can't fit on the text. Return undefined | |
}; | |
} | |
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