@aws/pdk
Version:
All documentation is located at: https://aws.github.io/aws-pdk
54 lines (43 loc) • 1.06 kB
JavaScript
var _curry2 =
/*#__PURE__*/
require("./_curry2.js");
var _xfBase =
/*#__PURE__*/
require("./_xfBase.js");
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;