Trait tea_dtype::IsNone

pub trait IsNone: Clonewhere
    Self: Sized,{
    type Inner: IsNone<Inner = Self::Inner>;
    type Cast<U: IsNone<Inner = U>>: IsNone<Inner = U>;

Show 13 methods    // Required methods
    fn is_none(&self) -> bool;
    fn none() -> Self;
    fn to_opt(self) -> Option<Self::Inner>;
    fn as_opt(&self) -> Option<&Self::Inner>;
    fn from_inner(inner: Self::Inner) -> Self;
    fn inner_cast<U: IsNone<Inner = U>>(inner: U) -> Self::Cast<U>
       where Self::Inner: Cast<U::Inner>;

    // Provided methods
    fn from_opt(opt: Option<Self::Inner>) -> Self { ... }
    fn unwrap(self) -> Self::Inner { ... }
    fn not_none(&self) -> bool { ... }
    fn map<F, U: IsNone>(self, f: F) -> U
       where F: Fn(Self::Inner) -> U::Inner { ... }
    fn vabs(self) -> Self
       where Self::Inner: Number { ... }
    fn sort_cmp(&self, other: &Self) -> Ordering
       where Self::Inner: PartialOrd { ... }
    fn sort_cmp_rev(&self, other: &Self) -> Ordering
       where Self::Inner: PartialOrd { ... }
}

Required Associated Types§

type Inner: IsNone<Inner = Self::Inner>

type Cast<U: IsNone<Inner = U>>: IsNone<Inner = U>

Required Methods§

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U>>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

Provided Methods§

fn from_opt(opt: Option<Self::Inner>) -> Self

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

fn vabs(self) -> Self
where Self::Inner: Number,

fn sort_cmp(&self, other: &Self) -> Ordering
where Self::Inner: PartialOrd,

let None value be largest, only for sorting(from smallest to largest)

fn sort_cmp_rev(&self, other: &Self) -> Ordering
where Self::Inner: PartialOrd,

let None value be largest, only for sorting(from largest to smallest)

Object Safety§

This trait is not object safe.

Implementations on Foreign Types§

impl IsNone for bool

fn sort_cmp(&self, other: &Self) -> Ordering
where Self: PartialOrd,

only for sorting(from smallest to largest)

type Inner = bool

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl IsNone for f32

type Inner = f32

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl IsNone for f64

type Inner = f64

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl IsNone for i32

fn sort_cmp(&self, other: &Self) -> Ordering
where Self: PartialOrd,

only for sorting(from smallest to largest)

type Inner = i32

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl IsNone for i64

fn sort_cmp(&self, other: &Self) -> Ordering
where Self: PartialOrd,

only for sorting(from smallest to largest)

type Inner = i64

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl IsNone for isize

fn sort_cmp(&self, other: &Self) -> Ordering
where Self: PartialOrd,

only for sorting(from smallest to largest)

type Inner = isize

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl IsNone for u8

fn sort_cmp(&self, other: &Self) -> Ordering
where Self: PartialOrd,

only for sorting(from smallest to largest)

type Inner = u8

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl IsNone for u64

fn sort_cmp(&self, other: &Self) -> Ordering
where Self: PartialOrd,

only for sorting(from smallest to largest)

type Inner = u64

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl IsNone for usize

fn sort_cmp(&self, other: &Self) -> Ordering
where Self: PartialOrd,

only for sorting(from smallest to largest)

type Inner = usize

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl IsNone for String

type Inner = String

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl<'a> IsNone for &'a str

type Inner = &'a str

type Cast<U: IsNone<Inner = U> + Clone> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl<T: Clone> IsNone for Vec<T>

type Inner = Vec<T>

type Cast<U: IsNone<Inner = U>> = U

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn unwrap(self) -> Self::Inner

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

impl<T: IsNone<Inner = T>> IsNone for Option<T>

type Inner = T

type Cast<U: IsNone<Inner = U> + Clone> = Option<U>

fn is_none(&self) -> bool

fn none() -> Self

fn to_opt(self) -> Option<Self::Inner>

fn as_opt(&self) -> Option<&Self::Inner>

fn from_inner(inner: Self::Inner) -> Self

fn inner_cast<U: IsNone<Inner = U> + Clone>(inner: U) -> Self::Cast<U>
where Self::Inner: Cast<U::Inner>,

fn not_none(&self) -> bool

fn map<F, U: IsNone>(self, f: F) -> U
where F: Fn(Self::Inner) -> U::Inner,

Implementors§

impl IsNone for TimeDelta

type Inner = TimeDelta

type Cast<U: IsNone<Inner = U> + Clone> = U

impl<Unit: TimeUnitTrait> IsNone for DateTime<Unit>

type Inner = DateTime<Unit>

type Cast<U: IsNone<Inner = U> + Clone> = U