func()

in internal/fs/fs.go [646:684]

• 29 lines of code
• 10 McCabe index (conditional complexity)

func (fs *fileSystem) checkInvariantsForInodes() {
	// INVARIANT: For all keys k, fuseops.RootInodeID <= k < nextInodeID
	for id := range fs.inodes {
		if id < fuseops.RootInodeID || id >= fs.nextInodeID {
			panic(fmt.Sprintf("Illegal inode ID: %v", id))
		}
	}

	// INVARIANT: For all keys k, inodes[k].ID() == k
	for id, in := range fs.inodes {
		if in.ID() != id {
			panic(fmt.Sprintf("ID mismatch: %v vs. %v", in.ID(), id))
		}
	}

	// INVARIANT: inodes[fuseops.RootInodeID] is missing or of type inode.DirInode
	//
	// The missing case is when we've received a forget request for the root
	// inode, while unmounting.
	switch in := fs.inodes[fuseops.RootInodeID].(type) {
	case nil:
	case inode.DirInode:
	default:
		panic(fmt.Sprintf("Unexpected type for root: %v", reflect.TypeOf(in)))
	}

	// INVARIANT: For all v, if v.Name().IsDir() then v is inode.DirInode
	for _, in := range fs.inodes {
		if in.Name().IsDir() {
			_, ok := in.(inode.DirInode)
			if !ok {
				panic(fmt.Sprintf(
					"Unexpected inode type for name \"%s\": %v",
					in.Name(),
					reflect.TypeOf(in)))
			}
		}
	}
}