_xfindLastIndex.js•732 B
var _curry2 = require('./_curry2');
var _xfBase = require('./_xfBase');
module.exports = (function() {
function XFindLastIndex(f, xf) {
this.xf = xf;
this.f = f;
this.idx = -1;
this.lastIdx = -1;
}
XFindLastIndex.prototype['@@transducer/init'] = _xfBase.init;
XFindLastIndex.prototype['@@transducer/result'] = function(result) {
return this.xf['@@transducer/result'](this.xf['@@transducer/step'](result, this.lastIdx));
};
XFindLastIndex.prototype['@@transducer/step'] = function(result, input) {
this.idx += 1;
if (this.f(input)) {
this.lastIdx = this.idx;
}
return result;
};
return _curry2(function _xfindLastIndex(f, xf) { return new XFindLastIndex(f, xf); });
}());