/
index.js
56 lines (44 loc) · 1.13 KB
/
index.js
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module.exports = Replay
function Replay(methods, getInstance) {
var object = {}
, calls = []
, error
, data
methods.forEach(addTrackerToObject)
getInstance(replay)
return object
function addTrackerToObject(methodName) {
object[methodName] = trackCall
function trackCall() {
calls.push({
methodName: methodName
, args: arguments
})
return object
}
}
function replay(err, object) {
error = err
if (object) {
data = object
methods.forEach(overwriteMethods)
}
calls.forEach(callOnTarget)
}
function callOnTarget(callData) {
var args = callData.args
if (error) {
var cb = args[args.length - 1]
if (typeof cb === "function") {
cb(error)
}
return
}
data[callData.methodName].apply(data, args)
}
function overwriteMethods(prop) {
if (typeof data[prop] === "function") {
object[prop] = data[prop].bind(data)
}
}
}