Function samePointers

assert/assertions.go:584–597

samePointers checks if two generic interface objects are pointers of the same type pointing to the same object. It returns two values: same indicating if they are the same type and point to the same object, and ok indicating that both inputs are pointers.

(first, second interface{})

// they are the same type and point to the same object, and ok indicating that
// both inputs are pointers.
func samePointers(first, second interface{}) (same bool, ok bool) {
	firstPtr, secondPtr := reflect.ValueOf(first), reflect.ValueOf(second)
	if firstPtr.Kind() != reflect.Ptr || secondPtr.Kind() != reflect.Ptr {
		return false, false // not both are pointers
	}

	firstType, secondType := reflect.TypeOf(first), reflect.TypeOf(second)
	if firstType != secondType {
		return false, true // both are pointers, but of different types
	}

	// compare pointer addresses
	return first == second, true
}

// formatUnequalValues takes two values of arbitrary types and returns string
// representations appropriate to be presented to the user.