108 lines
2.7 KiB
JavaScript
108 lines
2.7 KiB
JavaScript
// Deprecate a method.
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const deprecate = function (oldName, newName, fn) {
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var warned
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warned = false
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return function () {
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if (!(warned || process.noDeprecation)) {
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warned = true
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deprecate.warn(oldName, newName)
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}
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return fn.apply(this, arguments)
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}
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}
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// The method is renamed.
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deprecate.rename = function (object, oldName, newName) {
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var newMethod, warned
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warned = false
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newMethod = function () {
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if (!(warned || process.noDeprecation)) {
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warned = true
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deprecate.warn(oldName, newName)
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}
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return this[newName].apply(this, arguments)
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}
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if (typeof object === 'function') {
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object.prototype[oldName] = newMethod
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} else {
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object[oldName] = newMethod
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}
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}
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// Forward the method to member.
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deprecate.member = function (object, method, member) {
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var warned
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warned = false
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object.prototype[method] = function () {
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if (!(warned || process.noDeprecation)) {
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warned = true
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deprecate.warn(method, member + '.' + method)
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}
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return this[member][method].apply(this[member], arguments)
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}
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}
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// Deprecate a property.
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deprecate.property = function (object, property, method) {
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return Object.defineProperty(object, property, {
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get: function () {
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var warned
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warned = false
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if (!(warned || process.noDeprecation)) {
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warned = true
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deprecate.warn(property + ' property', method + ' method')
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}
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return this[method]()
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}
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})
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}
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// Deprecate an event.
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deprecate.event = function (emitter, oldName, newName, fn) {
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var warned
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warned = false
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return emitter.on(newName, function (...args) {
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// there is listeners for old API.
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if (this.listenerCount(oldName) > 0) {
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if (!(warned || process.noDeprecation)) {
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warned = true
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deprecate.warn("'" + oldName + "' event", "'" + newName + "' event")
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}
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if (fn != null) {
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return fn.apply(this, arguments)
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} else {
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return this.emit.apply(this, [oldName].concat(args))
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}
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}
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})
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}
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// Print deprecation warning.
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deprecate.warn = function (oldName, newName) {
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return deprecate.log(oldName + ' is deprecated. Use ' + newName + ' instead.')
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}
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var deprecationHandler = null
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// Print deprecation message.
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deprecate.log = function (message) {
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if (typeof deprecationHandler === 'function') {
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deprecationHandler(message)
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} else if (process.throwDeprecation) {
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throw new Error(message)
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} else if (process.traceDeprecation) {
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return console.trace(message)
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} else {
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return console.warn('(electron) ' + message)
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}
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}
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deprecate.setHandler = function (handler) {
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deprecationHandler = handler
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}
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deprecate.getHandler = function () {
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return deprecationHandler
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}
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module.exports = deprecate
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