pnpm
Version:
Fast, disk space efficient package manager
40 lines (35 loc) • 1.04 kB
JavaScript
var _curry2 = /*#__PURE__*/require('./_curry2');
var _xfBase = /*#__PURE__*/require('./_xfBase');
var XDropLast = /*#__PURE__*/function () {
function XDropLast(n, xf) {
this.xf = xf;
this.pos = 0;
this.full = false;
this.acc = new Array(n);
}
XDropLast.prototype['@@transducer/init'] = _xfBase.init;
XDropLast.prototype['@@transducer/result'] = function (result) {
this.acc = null;
return this.xf['@@transducer/result'](result);
};
XDropLast.prototype['@@transducer/step'] = function (result, input) {
if (this.full) {
result = this.xf['@@transducer/step'](result, this.acc[this.pos]);
}
this.store(input);
return result;
};
XDropLast.prototype.store = function (input) {
this.acc[this.pos] = input;
this.pos += 1;
if (this.pos === this.acc.length) {
this.pos = 0;
this.full = true;
}
};
return XDropLast;
}();
var _xdropLast = /*#__PURE__*/_curry2(function _xdropLast(n, xf) {
return new XDropLast(n, xf);
});
module.exports = _xdropLast;