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Diffstat (limited to 'node_modules/depd/lib/compat/index.js')
-rw-r--r-- | node_modules/depd/lib/compat/index.js | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/node_modules/depd/lib/compat/index.js b/node_modules/depd/lib/compat/index.js new file mode 100644 index 0000000..955b333 --- /dev/null +++ b/node_modules/depd/lib/compat/index.js @@ -0,0 +1,79 @@ +/*! + * depd + * Copyright(c) 2014-2015 Douglas Christopher Wilson + * MIT Licensed + */ + +'use strict' + +/** + * Module dependencies. + * @private + */ + +var EventEmitter = require('events').EventEmitter + +/** + * Module exports. + * @public + */ + +lazyProperty(module.exports, 'callSiteToString', function callSiteToString () { + var limit = Error.stackTraceLimit + var obj = {} + var prep = Error.prepareStackTrace + + function prepareObjectStackTrace (obj, stack) { + return stack + } + + Error.prepareStackTrace = prepareObjectStackTrace + Error.stackTraceLimit = 2 + + // capture the stack + Error.captureStackTrace(obj) + + // slice the stack + var stack = obj.stack.slice() + + Error.prepareStackTrace = prep + Error.stackTraceLimit = limit + + return stack[0].toString ? toString : require('./callsite-tostring') +}) + +lazyProperty(module.exports, 'eventListenerCount', function eventListenerCount () { + return EventEmitter.listenerCount || require('./event-listener-count') +}) + +/** + * Define a lazy property. + */ + +function lazyProperty (obj, prop, getter) { + function get () { + var val = getter() + + Object.defineProperty(obj, prop, { + configurable: true, + enumerable: true, + value: val + }) + + return val + } + + Object.defineProperty(obj, prop, { + configurable: true, + enumerable: true, + get: get + }) +} + +/** + * Call toString() on the obj + */ + +function toString (obj) { + return obj.toString() +} |