69 lines
1.9 KiB
CoffeeScript
69 lines
1.9 KiB
CoffeeScript
# Deprecate a method.
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deprecate = (oldName, newName, fn) ->
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warned = false
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->
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unless warned or process.noDeprecation
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warned = true
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deprecate.warn oldName, newName
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fn.apply this, arguments
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# The method is renamed.
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deprecate.rename = (object, oldName, newName) ->
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warned = false
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newMethod = ->
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unless warned or process.noDeprecation
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warned = true
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deprecate.warn oldName, newName
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this[newName].apply this, arguments
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if typeof object is '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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# Forward the method to member.
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deprecate.member = (object, method, member) ->
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warned = false
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object.prototype[method] = ->
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unless warned or process.noDeprecation
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warned = true
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deprecate.warn method, "#{member}.#{method}"
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this[member][method].apply this[member], arguments
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# Deprecate a property.
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deprecate.property = (object, property, method) ->
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Object.defineProperty object, property,
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get: ->
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warned = false
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unless warned or process.noDeprecation
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warned = true
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deprecate.warn "#{property} property", "#{method} method"
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this[method]()
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# Deprecate an event.
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deprecate.event = (emitter, oldName, newName, fn) ->
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warned = false
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emitter.on newName, (args...) ->
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if @listenerCount(oldName) > 0 # there is listeners for old API.
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unless warned or process.noDeprecation
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warned = true
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deprecate.warn "'#{oldName}' event", "'#{newName}' event"
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if fn?
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fn.apply this, arguments
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else
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@emit oldName, args...
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# Print deprecate warning.
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deprecate.warn = (oldName, newName) ->
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deprecate.log("#{oldName} is deprecated. Use #{newName} instead.")
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# Print deprecation message
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deprecate.log = (message) ->
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if process.throwDeprecation
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throw new Error(message)
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else if process.traceDeprecation
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console.trace message
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else
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console.warn "(electron) #{message}"
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module.exports = deprecate
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