3 var experimentalWarnings = new Set();
5 function emitExperimentalWarning(feature) {
6 if (experimentalWarnings.has(feature)) return;
7 var msg = feature + ' is an experimental feature. This feature could ' +
9 experimentalWarnings.add(feature);
10 process.emitWarning(msg, 'ExperimentalWarning');
15 module.exports.emitExperimentalWarning = process.emitWarning
16 ? emitExperimentalWarning