muonsoft / validation

// Option is used to set up validation process of a value.

type Option interface {

	// SetUp is called when the validation process is initialized

	// and can be used to gracefully handle errors when initializing constraints.

	SetUp() error

}

// internalOption is used to tune the validation scope before starting the validation process.

type internalOption interface {

	setUpOnScope(scope *Scope) error

}

// optionFunc is an adapter that allows to use ordinary functions as validation options.

type optionFunc func(scope *Scope) error

func (f optionFunc) SetUp() error {

	return nil

}

// PropertyName option adds name of the given property to current validation scope.

func PropertyName(propertyName string) Option {

	return optionFunc(func(scope *Scope) error {

		scope.propertyPath = append(scope.propertyPath, PropertyNameElement(propertyName))

		return nil

	})

}

// ArrayIndex option adds index of the given array to current validation scope.

func ArrayIndex(index int) Option {

	return optionFunc(func(scope *Scope) error {

		scope.propertyPath = append(scope.propertyPath, ArrayIndexElement(index))

		return nil

	})

}