Function trackStringJoinCost

ext/strings.go:1080–1084

trackStringJoinCost tracks runtime cost for string join operations, accounting for traversal and the size of the result.

(args []ref.Val, result ref.Val)

// trackStringJoinCost tracks runtime cost for string join operations,
// accounting for traversal and the size of the result.
func trackStringJoinCost(args []ref.Val, result ref.Val) *uint64 {
	traversalCost := float64(safeAdd(actualSize(args[0]), 1)) * stringCostFactor
	cost := safeAdd(callCost, uint64(math.Ceil(traversalCost)), actualSize(result))
	return &cost
}