Struct libflate::finish::Finish[−][src]

pub struct Finish<T, E> { /* fields omitted */ }

Expand description

Finish is a type that represents a value which may have an error occurred during the computation.

Logically, Finish<T, E> is equivalent to Result<T, (T, E)>.

Implementations

impl<T, E> Finish<T, E>

pub fn new(value: T, error: Option<E>) -> Self

Makes a new instance.

Examples

use libflate::Finish;

// The result value of a succeeded computation
let succeeded = Finish::new("value", None as Option<()>);
assert_eq!(succeeded.into_result(), Ok("value"));

// The result value of a failed computation
let failed = Finish::new("value", Some("error"));
assert_eq!(failed.into_result(), Err("error"));

pub fn unwrap(self) -> (T, Option<E>)

Unwraps the instance.

Examples

use libflate::Finish;

let succeeded = Finish::new("value", None as Option<()>);
assert_eq!(succeeded.unwrap(), ("value", None));

let failed = Finish::new("value", Some("error"));
assert_eq!(failed.unwrap(), ("value", Some("error")));

pub fn into_result(self) -> Result<T, E>

Converts from Finish<T, E> to Result<T, E>.

Examples

use libflate::Finish;

let succeeded = Finish::new("value", None as Option<()>);
assert_eq!(succeeded.into_result(), Ok("value"));

let failed = Finish::new("value", Some("error"));
assert_eq!(failed.into_result(), Err("error"));

pub fn as_result(&self) -> Result<&T, &E>

Converts from Finish<T, E> to Result<&T, &E>.

Examples

use libflate::Finish;

let succeeded = Finish::new("value", None as Option<()>);
assert_eq!(succeeded.as_result(), Ok(&"value"));

let failed = Finish::new("value", Some("error"));
assert_eq!(failed.as_result(), Err(&"error"));

Trait Implementations

impl<T: Clone, E: Clone> Clone for Finish<T, E>

fn clone(&self) -> Finish<T, E>

Returns a copy of the value. Read more

1.0.0[src]

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

Performs copy-assignment from source. Read more

impl<T: Debug, E: Debug> Debug for Finish<T, E>

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

Formats the value using the given formatter. Read more

impl<T: Default, E: Default> Default for Finish<T, E>

fn default() -> Finish<T, E>

Returns the “default value” for a type. Read more

impl<T: Hash, E: Hash> Hash for Finish<T, E>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0[src]

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

impl<T: Ord, E: Ord> Ord for Finish<T, E>

fn cmp(&self, other: &Finish<T, E>) -> Ordering

This method returns an Ordering between self and other. Read more

1.21.0[src]

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values. Read more

1.21.0[src]

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values. Read more

1.50.0[src]

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval. Read more

impl<T: PartialEq, E: PartialEq> PartialEq<Finish<T, E>> for Finish<T, E>

fn eq(&self, other: &Finish<T, E>) -> bool

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

fn ne(&self, other: &Finish<T, E>) -> bool

This method tests for !=.

impl<T: PartialOrd, E: PartialOrd> PartialOrd<Finish<T, E>> for Finish<T, E>

fn partial_cmp(&self, other: &Finish<T, E>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more

1.0.0[src]

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more

1.0.0[src]

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0[src]

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more

1.0.0[src]

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl<T: Eq, E: Eq> Eq for Finish<T, E>

impl<T, E> StructuralEq for Finish<T, E>

impl<T, E> StructuralPartialEq for Finish<T, E>

Auto Trait Implementations

impl<T, E> RefUnwindSafe for Finish<T, E> where
E: RefUnwindSafe,
T: RefUnwindSafe,

impl<T, E> Send for Finish<T, E> where
E: Send,
T: Send,

impl<T, E> Sync for Finish<T, E> where
E: Sync,
T: Sync,

impl<T, E> Unpin for Finish<T, E> where
E: Unpin,
T: Unpin,

impl<T, E> UnwindSafe for Finish<T, E> where
E: UnwindSafe,
T: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

pub fn from(t: T) -> T

Performs the conversion.

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

pub fn into(self) -> U

Performs the conversion.

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

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T

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

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

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

recently added

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.