@reactivex/ix-es5-esm/asynciterable/operators/buffer.js

The Interactive Extensions for JavaScript

import { __asyncGenerator, __asyncValues, __await, __extends, __generator, __values } from "tslib";
import { AsyncIterableX } from '../asynciterablex.js';
import { wrapWithAbort } from './withabort.js';
import { throwIfAborted } from '../../aborterror.js';
/** @ignore */
var BufferAsyncIterable = /** @class */ (function (_super) {
    __extends(BufferAsyncIterable, _super);
    function BufferAsyncIterable(source, count, skip) {
        var _this = _super.call(this) || this;
        _this._source = source;
        _this._count = count;
        _this._skip = skip;
        return _this;
    }
    BufferAsyncIterable.prototype[Symbol.asyncIterator] = function (signal) {
        return __asyncGenerator(this, arguments, function _a() {
            var buffers, i, _b, _c, _d, item, buffers_1, buffers_1_1, buff, e_1_1;
            var e_2, _e;
            var _f, e_1, _g, _h;
            return __generator(this, function (_j) {
                switch (_j.label) {
                    case 0:
                        throwIfAborted(signal);
                        buffers = [];
                        i = 0;
                        _j.label = 1;
                    case 1:
                        _j.trys.push([1, 9, 10, 15]);
                        _b = true, _c = __asyncValues(wrapWithAbort(this._source, signal));
                        _j.label = 2;
                    case 2: return [4 /*yield*/, __await(_c.next())];
                    case 3:
                        if (!(_d = _j.sent(), _f = _d.done, !_f)) return [3 /*break*/, 8];
                        _h = _d.value;
                        _b = false;
                        item = _h;
                        if (i % this._skip === 0) {
                            buffers.push([]);
                        }
                        try {
                            for (buffers_1 = (e_2 = void 0, __values(buffers)), buffers_1_1 = buffers_1.next(); !buffers_1_1.done; buffers_1_1 = buffers_1.next()) {
                                buff = buffers_1_1.value;
                                buff.push(item);
                            }
                        }
                        catch (e_2_1) { e_2 = { error: e_2_1 }; }
                        finally {
                            try {
                                if (buffers_1_1 && !buffers_1_1.done && (_e = buffers_1.return)) _e.call(buffers_1);
                            }
                            finally { if (e_2) throw e_2.error; }
                        }
                        if (!(buffers.length > 0 && buffers[0].length === this._count)) return [3 /*break*/, 6];
                        return [4 /*yield*/, __await(buffers.shift())];
                    case 4: return [4 /*yield*/, _j.sent()];
                    case 5:
                        _j.sent();
                        _j.label = 6;
                    case 6:
                        i++;
                        _j.label = 7;
                    case 7:
                        _b = true;
                        return [3 /*break*/, 2];
                    case 8: return [3 /*break*/, 15];
                    case 9:
                        e_1_1 = _j.sent();
                        e_1 = { error: e_1_1 };
                        return [3 /*break*/, 15];
                    case 10:
                        _j.trys.push([10, , 13, 14]);
                        if (!(!_b && !_f && (_g = _c.return))) return [3 /*break*/, 12];
                        return [4 /*yield*/, __await(_g.call(_c))];
                    case 11:
                        _j.sent();
                        _j.label = 12;
                    case 12: return [3 /*break*/, 14];
                    case 13:
                        if (e_1) throw e_1.error;
                        return [7 /*endfinally*/];
                    case 14: return [7 /*endfinally*/];
                    case 15:
                        if (!(buffers.length > 0)) return [3 /*break*/, 18];
                        return [4 /*yield*/, __await(buffers.shift())];
                    case 16: return [4 /*yield*/, _j.sent()];
                    case 17:
                        _j.sent();
                        return [3 /*break*/, 15];
                    case 18: return [2 /*return*/];
                }
            });
        });
    };
    return BufferAsyncIterable;
}(AsyncIterableX));
export { BufferAsyncIterable };
/**
 * Projects each element of an async-iterable sequence into consecutive non-overlapping
 * buffers which are produced based on element count information.
 *
 * @template TSource The type of elements in the source sequence.
 * @param {number} count The length of each buffer.
 * @param {number} [skip] An optional number of elements to skip between creation of consecutive buffers.
 * @returns {OperatorAsyncFunction<TSource, TSource[]>} An operator which returns anm async-iterable sequence with
 * consecutive non-overlapping buffers based upon element count information.
 */
export function buffer(count, skip) {
    var s = skip;
    if (s == null) {
        s = count;
    }
    return function bufferOperatorFunction(source) {
        return new BufferAsyncIterable(source, count, s);
    };
}
/**
 * Projects each element of an async-iterable sequence into consecutive non-overlapping
 * buffers which are produced based on element count information.
 * @param count Length of each buffer.
 * @param skip Number of elements to skip between creation of consecutive buffers.
 */

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