Edit: state.js
'use strict'; var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE; function highWaterMarkFrom(options, isDuplex, duplexKey) { return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null; } function getHighWaterMark(state, options, duplexKey, isDuplex) { var hwm = highWaterMarkFrom(options, isDuplex, duplexKey); if (hwm != null) { if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) { var name = isDuplex ? duplexKey : 'highWaterMark'; throw new ERR_INVALID_OPT_VALUE(name, hwm); } return Math.floor(hwm); } // Default value return state.objectMode ? 16 : 16 * 1024; } module.exports = { getHighWaterMark: getHighWaterMark };
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