kubernetes/staging/src/k8s.io/api/core/v1/taint.go

// MatchTaint checks if the taint matches taintToMatch. Taints are unique by key:effect,
// if the two taints have same key:effect, regard as they match.
func (t *Taint) MatchTaint(taintToMatch *Taint) bool { … }

// taint.ToString() converts taint struct to string in format '<key>=<value>:<effect>', '<key>=<value>:', '<key>:<effect>', or '<key>'.
func (t *Taint) ToString() string { … }