First commit

node_modules/vue-router/src/util/errors.js

@@ -0,0 +1,86 @@
+// When changing thing, also edit router.d.ts
+export const NavigationFailureType = {
+  redirected: 2,
+  aborted: 4,
+  cancelled: 8,
+  duplicated: 16
+}
+
+export function createNavigationRedirectedError (from, to) {
+  return createRouterError(
+    from,
+    to,
+    NavigationFailureType.redirected,
+    `Redirected when going from "${from.fullPath}" to "${stringifyRoute(
+      to
+    )}" via a navigation guard.`
+  )
+}
+
+export function createNavigationDuplicatedError (from, to) {
+  const error = createRouterError(
+    from,
+    to,
+    NavigationFailureType.duplicated,
+    `Avoided redundant navigation to current location: "${from.fullPath}".`
+  )
+  // backwards compatible with the first introduction of Errors
+  error.name = 'NavigationDuplicated'
+  return error
+}
+
+export function createNavigationCancelledError (from, to) {
+  return createRouterError(
+    from,
+    to,
+    NavigationFailureType.cancelled,
+    `Navigation cancelled from "${from.fullPath}" to "${
+      to.fullPath
+    }" with a new navigation.`
+  )
+}
+
+export function createNavigationAbortedError (from, to) {
+  return createRouterError(
+    from,
+    to,
+    NavigationFailureType.aborted,
+    `Navigation aborted from "${from.fullPath}" to "${
+      to.fullPath
+    }" via a navigation guard.`
+  )
+}
+
+function createRouterError (from, to, type, message) {
+  const error = new Error(message)
+  error._isRouter = true
+  error.from = from
+  error.to = to
+  error.type = type
+
+  return error
+}
+
+const propertiesToLog = ['params', 'query', 'hash']
+
+function stringifyRoute (to) {
+  if (typeof to === 'string') return to
+  if ('path' in to) return to.path
+  const location = {}
+  propertiesToLog.forEach(key => {
+    if (key in to) location[key] = to[key]
+  })
+  return JSON.stringify(location, null, 2)
+}
+
+export function isError (err) {
+  return Object.prototype.toString.call(err).indexOf('Error') > -1
+}
+
+export function isNavigationFailure (err, errorType) {
+  return (
+    isError(err) &&
+    err._isRouter &&
+    (errorType == null || err.type === errorType)
+  )
+}