Current File : //lib/node_modules/npm/node_modules/diff/lib/util/distance-iterator.js
/*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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Mini Shell