Trait ExtendMayBeNull

pub trait ExtendMayBeNull<T> {
    // Required methods
    fn new(type_: T, q_mark: Option<QMark>) -> Self;
    fn new_optional(type_: T) -> Self;
    fn new_required(type_: T) -> Self;
    fn is_optional(&self) -> bool;
    fn is_required(&self) -> bool;
}

Extension methods for MayBeNull<T>

Required Methods

fn new(type_: T, q_mark: Option<QMark>) -> Self

fn new_optional(type_: T) -> Self

fn new_required(type_: T) -> Self

fn is_optional(&self) -> bool

fn is_required(&self) -> bool

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T> ExtendMayBeNull<T> for MayBeNull<T>

fn new(type_: T, q_mark: Option<QMark>) -> Self

fn new_optional(type_: T) -> Self

fn new_required(type_: T) -> Self

fn is_optional(&self) -> bool

fn is_required(&self) -> bool

Implementors