_xfindIndex.js•856 B
var _curry2 = require('./_curry2');
var _reduced = require('./_reduced');
var _xfBase = require('./_xfBase');
module.exports = (function() {
function XFindIndex(f, xf) {
this.xf = xf;
this.f = f;
this.idx = -1;
this.found = false;
}
XFindIndex.prototype['@@transducer/init'] = _xfBase.init;
XFindIndex.prototype['@@transducer/result'] = function(result) {
if (!this.found) {
result = this.xf['@@transducer/step'](result, -1);
}
return this.xf['@@transducer/result'](result);
};
XFindIndex.prototype['@@transducer/step'] = function(result, input) {
this.idx += 1;
if (this.f(input)) {
this.found = true;
result = _reduced(this.xf['@@transducer/step'](result, this.idx));
}
return result;
};
return _curry2(function _xfindIndex(f, xf) { return new XFindIndex(f, xf); });
}());