Validate

@propertyWrapper
public struct Validate<Value> : DynamicProperty

A property wrapper that can validate the property it wraps.

When the wrapped value changes @Validate will run the provided validations against the value.

Once validated, the isValid and errors properties can provide validation results.

The Validate framwork contains a number of built in validations such as presence, count and format. All which a various array of types.

If the included validations don’t quite do what is required, new validations can be built with the Validation struct.

  • The wrapped value

    Declaration

    Swift

    public var wrappedValue: Value { get nonmutating set }

  • Undocumented

    Declaration

    Swift

    public var projectedValue: Binding<Value> { get }

  • The errors produced when validating the wrapped value.

    Declaration

    Swift

    public var errors: [Error] { get }

  • Indicates whether the wrapped value is valid.

    Declaration

    Swift

    public var isValid: Bool { get }

Initialization

  • Initialize a Validate instance.

    Declaration

    Swift

    public init(
    wrappedValue: Value,
    _ validations: Validation<Value>...
)

    Parameters

    wrappedValue

    The value to wrap.
    validations

    The validations.

  • Initialize a Validate instance where Value is optional.

    Declaration

    Swift

    public init<T>(
    wrappedValue: Value,
    _ validations: Validation<Value>...
) where Value == Optional<T>

    Parameters

    wrappedValue

    The value to wrap.
    validations

    The validations.