30 lines
997 B
JavaScript
30 lines
997 B
JavaScript
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.StringWriter = void 0;
|
|
const stream_1 = require("stream");
|
|
class StringWriter extends stream_1.Writable {
|
|
constructor(maxByteLength = 1 * 1024 * 1024) {
|
|
super();
|
|
this.maxByteLength = maxByteLength;
|
|
this.byteLength = 0;
|
|
this.bufs = [];
|
|
}
|
|
_write(chunk, _, callback) {
|
|
if (!(chunk instanceof Buffer)) {
|
|
callback(new Error("StringWriter: expects chunks of type 'Buffer'."));
|
|
return;
|
|
}
|
|
if (this.byteLength + chunk.byteLength > this.maxByteLength) {
|
|
callback(new Error(`StringWriter: Maximum bytes exceeded, maxByteLength=${this.maxByteLength}.`));
|
|
return;
|
|
}
|
|
this.byteLength += chunk.byteLength;
|
|
this.bufs.push(chunk);
|
|
callback(null);
|
|
}
|
|
getText(encoding) {
|
|
return Buffer.concat(this.bufs).toString(encoding);
|
|
}
|
|
}
|
|
exports.StringWriter = StringWriter;
|