Method Index

cmp/path.go:90–98

Index returns the ith step in the Path and supports negative indexing. A negative index starts counting from the tail of the Path such that -1 refers to the last step, -2 refers to the second-to-last step, and so on. If index is invalid, this returns a non-nil [PathStep] that reports a nil [PathStep

(i int)

// If index is invalid, this returns a non-nil [PathStep]
// that reports a nil [PathStep.Type].
func (pa Path) Index(i int) PathStep {
	if i < 0 {
		i = len(pa) + i
	}
	if i < 0 || i >= len(pa) {
		return pathStep{}
	}
	return pa[i]
}

// String returns the simplified path to a node.
// The simplified path only contains struct field accesses.