四好公路
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'use strict'
const util = require('util')
const dummyFunctions = new Map()
// Node 4 doesn’t support process.emitWarning(message, 'DeprecationWarning', code).
const warnDeprecation = (message, code) => {
let dummy = dummyFunctions.get(code)
if (dummy === undefined) {
dummy = util.deprecate(() => {}, message)
dummyFunctions.set(code, dummy)
}
dummy()
}
module.exports = warnDeprecation