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'use strict';
if (!process.binding('config').hasIntl) {
return;
}
const normalizeEncoding = require('internal/util').normalizeEncoding;
const Buffer = require('buffer').Buffer;
const icu = process.binding('icu');
// Transcodes the Buffer from one encoding to another, returning a new
// Buffer instance.
exports.transcode = function transcode(source, fromEncoding, toEncoding) {
if (!Buffer.isBuffer(source))
throw new TypeError('"source" argument must be a Buffer');
if (source.length === 0) return Buffer.alloc(0);
fromEncoding = normalizeEncoding(fromEncoding) || fromEncoding;
toEncoding = normalizeEncoding(toEncoding) || toEncoding;
const result = icu.transcode(source, fromEncoding, toEncoding);
if (Buffer.isBuffer(result))
return result;
const code = icu.icuErrName(result);
const err = new Error(`Unable to transcode Buffer [${code}]`);
err.code = code;
err.errno = result;
throw err;
};
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