@reactivex/ix-es5-esm
Version:
The Interactive Extensions for JavaScript
126 lines (124 loc) • 5.18 kB
JavaScript
import { __extends, __generator, __values } from "tslib";
import { IterableX } from '../iterablex.js';
import { isIterable } from '../../util/isiterable.js';
/** @ignore */
var FlattenIterable = /** @class */ (function (_super) {
__extends(FlattenIterable, _super);
function FlattenIterable(source, depth) {
var _this = _super.call(this) || this;
_this._source = source;
_this._depth = depth;
return _this;
}
// eslint-disable-next-line consistent-return
FlattenIterable.prototype._flatten = function (source, depth) {
var source_1, source_1_1, item, e_1_1, source_2, source_2_1, item, _a, _b, innerItem, e_2_1, e_3_1;
var e_1, _c, e_3, _d, e_2, _e;
return __generator(this, function (_f) {
switch (_f.label) {
case 0:
if (!(depth === 0)) return [3 /*break*/, 9];
_f.label = 1;
case 1:
_f.trys.push([1, 6, 7, 8]);
source_1 = __values(source), source_1_1 = source_1.next();
_f.label = 2;
case 2:
if (!!source_1_1.done) return [3 /*break*/, 5];
item = source_1_1.value;
return [4 /*yield*/, item];
case 3:
_f.sent();
_f.label = 4;
case 4:
source_1_1 = source_1.next();
return [3 /*break*/, 2];
case 5: return [3 /*break*/, 8];
case 6:
e_1_1 = _f.sent();
e_1 = { error: e_1_1 };
return [3 /*break*/, 8];
case 7:
try {
if (source_1_1 && !source_1_1.done && (_c = source_1.return)) _c.call(source_1);
}
finally { if (e_1) throw e_1.error; }
return [7 /*endfinally*/];
case 8: return [2 /*return*/, undefined];
case 9:
_f.trys.push([9, 23, 24, 25]);
source_2 = __values(source), source_2_1 = source_2.next();
_f.label = 10;
case 10:
if (!!source_2_1.done) return [3 /*break*/, 22];
item = source_2_1.value;
if (!isIterable(item)) return [3 /*break*/, 19];
_f.label = 11;
case 11:
_f.trys.push([11, 16, 17, 18]);
_a = (e_2 = void 0, __values(this._flatten(item, depth - 1))), _b = _a.next();
_f.label = 12;
case 12:
if (!!_b.done) return [3 /*break*/, 15];
innerItem = _b.value;
return [4 /*yield*/, innerItem];
case 13:
_f.sent();
_f.label = 14;
case 14:
_b = _a.next();
return [3 /*break*/, 12];
case 15: return [3 /*break*/, 18];
case 16:
e_2_1 = _f.sent();
e_2 = { error: e_2_1 };
return [3 /*break*/, 18];
case 17:
try {
if (_b && !_b.done && (_e = _a.return)) _e.call(_a);
}
finally { if (e_2) throw e_2.error; }
return [7 /*endfinally*/];
case 18: return [3 /*break*/, 21];
case 19: return [4 /*yield*/, item];
case 20:
_f.sent();
_f.label = 21;
case 21:
source_2_1 = source_2.next();
return [3 /*break*/, 10];
case 22: return [3 /*break*/, 25];
case 23:
e_3_1 = _f.sent();
e_3 = { error: e_3_1 };
return [3 /*break*/, 25];
case 24:
try {
if (source_2_1 && !source_2_1.done && (_d = source_2.return)) _d.call(source_2);
}
finally { if (e_3) throw e_3.error; }
return [7 /*endfinally*/];
case 25: return [2 /*return*/];
}
});
};
FlattenIterable.prototype[Symbol.iterator] = function () {
return this._flatten(this._source, this._depth)[Symbol.iterator]();
};
return FlattenIterable;
}(IterableX));
export { FlattenIterable };
/**
* Flattens the nested iterable by the given depth.
*
* @template T The type of elements in the source sequence.
* @param {number} [depth=Infinity] The depth to flatten the iterable sequence if specified, otherwise infinite.
* @returns {MonoTypeOperatorFunction<T>} An operator that flattens the iterable sequence.
*/
export function flat(depth) {
if (depth === void 0) { depth = Infinity; }
return function flattenOperatorFunction(source) {
return new FlattenIterable(source, depth);
};
}
//# sourceMappingURL=flat.js.map