Enum nom::Needed

source · [−]

pub enum Needed {
    Unknown,
    Size(NonZeroUsize),
}

Expand description

Contains information on needed data if a parser returned Incomplete

Variants

`Unknown`

Needs more data, but we do not know how much

`Size(NonZeroUsize)`

Contains the required data size in bytes

Implementations

source

impl Needed

source

pub fn new(s: usize) -> Self

Creates Needed instance, returns Needed::Unknown if the argument is zero

source

pub fn is_known(&self) -> bool

Indicates if we know how many bytes we need

source

pub fn map<F: Fn(NonZeroUsize) -> usize>(self, f: F) -> Needed

Maps a Needed to Needed by applying a function to a contained Size value.

Trait Implementations

source

impl Clone for Needed

source

fn clone(&self) -> Needed

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

source

impl Debug for Needed

source

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

source

impl PartialEq<Needed> for Needed

source

fn eq(&self, other: &Needed) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

source

fn ne(&self, other: &Needed) -> bool

This method tests for !=.

source

impl StructuralPartialEq for Needed

Auto Trait Implementations

impl RefUnwindSafe for Needed

impl Send for Needed

impl Sync for Needed

impl Unpin for Needed

impl UnwindSafe for Needed

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum nom::Needed

Variants

Unknown

Size(NonZeroUsize)

Implementations

impl Needed

pub fn new(s: usize) -> Self

pub fn is_known(&self) -> bool

pub fn map<F: Fn(NonZeroUsize) -> usize>(self, f: F) -> Needed

Trait Implementations

impl Clone for Needed

fn clone(&self) -> Needed

fn clone_from(&mut self, source: &Self)

impl Debug for Needed

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl PartialEq<Needed> for Needed

fn eq(&self, other: &Needed) -> bool

fn ne(&self, other: &Needed) -> bool

impl Copy for Needed

impl Eq for Needed

impl StructuralEq for Needed

impl StructuralPartialEq for Needed

Auto Trait Implementations

impl RefUnwindSafe for Needed

impl Send for Needed

impl Sync for Needed

impl Unpin for Needed

impl UnwindSafe for Needed

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`Unknown`

`Size(NonZeroUsize)`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,