49 lines
1.8 KiB
JavaScript
49 lines
1.8 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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Object.defineProperty(exports, "__esModule", { value: true });
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var Parser_1 = require("./Parser");
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var stream_1 = require("stream");
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var string_decoder_1 = require("string_decoder");
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// Following the example in https://nodejs.org/api/stream.html#stream_decoding_buffers_in_a_writable_stream
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function isBuffer(_chunk, encoding) {
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return encoding === "buffer";
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}
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/**
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* WritableStream makes the `Parser` interface available as a NodeJS stream.
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*
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* @see Parser
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*/
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var WritableStream = /** @class */ (function (_super) {
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__extends(WritableStream, _super);
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function WritableStream(cbs, options) {
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var _this = _super.call(this, { decodeStrings: false }) || this;
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_this._decoder = new string_decoder_1.StringDecoder();
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_this._parser = new Parser_1.Parser(cbs, options);
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return _this;
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}
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WritableStream.prototype._write = function (chunk, encoding, cb) {
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if (isBuffer(chunk, encoding))
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chunk = this._decoder.write(chunk);
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this._parser.write(chunk);
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cb();
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};
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WritableStream.prototype._final = function (cb) {
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this._parser.end(this._decoder.end());
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cb();
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};
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return WritableStream;
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}(stream_1.Writable));
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exports.WritableStream = WritableStream;
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