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JavaScript

/*!
* depd
* Copyright(c) 2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* Module exports.
* @public
*/
module.exports = depd
/**
* Create deprecate for namespace in caller.
*/
function depd (namespace) {
if (!namespace) {
throw new TypeError('argument namespace is required')
}
function deprecate (message) {
// no-op in browser
}
deprecate._file = undefined
deprecate._ignored = true
deprecate._namespace = namespace
deprecate._traced = false
deprecate._warned = Object.create(null)
deprecate.function = wrapfunction
deprecate.property = wrapproperty
return deprecate
}
/**
* Return a wrapped function in a deprecation message.
*
* This is a no-op version of the wrapper, which does nothing but call
* validation.
*/
function wrapfunction (fn, message) {
if (typeof fn !== 'function') {
throw new TypeError('argument fn must be a function')
}
return fn
}
/**
* Wrap property in a deprecation message.
*
* This is a no-op version of the wrapper, which does nothing but call
* validation.
*/
function wrapproperty (obj, prop, message) {
if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) {
throw new TypeError('argument obj must be object')
}
var descriptor = Object.getOwnPropertyDescriptor(obj, prop)
if (!descriptor) {
throw new TypeError('must call property on owner object')
}
if (!descriptor.configurable) {
throw new TypeError('property must be configurable')
}
}