if pod.Labels == nil {
		pod.Labels = map[string]string{}
	}

	overwriteClusterInfo(pod, req)

	if err := applyPrometheusMerge(pod, req.meshConfig); err != nil {
		return err
	}

	if err := applyRewrite(pod, req); err != nil {
		return err
	}

	applyMetadata(pod, injectedPod, req)

	if err := reorderPod(pod, req); err != nil {
		return err
	}

	return nil
}

type deadValueChoice bool

const (
	leaveDeadValues  deadValueChoice = false
	removeDeadValues                 = true
)

// deadcode indicates whether rewrite should try to remove any values that become dead.
func applyRewrite(f *Func, rb blockRewriter, rv valueRewriter, deadcode deadValueChoice) {
	// repeat rewrites until we find no more rewrites
	pendingLines := f.cachedLineStarts // Holds statement boundaries that need to be moved to a new value/block