Struct hir_expand::ValueResult

pub struct ValueResult<T, E> {
    pub value: T,
    pub err: Option<E>,
}

Fields

value: T

err: Option<E>

Implementations

impl<T, E> ValueResult<T, E>

pub fn new(value: T, err: E) -> ValueResult<T, E>

pub fn ok(value: T) -> ValueResult<T, E>

pub fn only_err(err: E) -> ValueResult<T, E>

where T: Default,

pub fn zip_val<U>(self, other: U) -> ValueResult<(T, U), E>

pub fn map<U>(self, f: impl FnOnce(T) -> U) -> ValueResult<U, E>

pub fn map_err<E2>(self, f: impl FnOnce(E) -> E2) -> ValueResult<T, E2>

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

Trait Implementations

impl<T, E> Clone for ValueResult<T, E>

where T: Clone, E: Clone,

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T, E> Debug for ValueResult<T, E>

where T: Debug, E: Debug,

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

Formats the value using the given formatter.

impl<T, E> Default for ValueResult<T, E>

where T: Default,

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

Returns the “default value” for a type.

impl<T, E> From<Result<T, E>> for ValueResult<T, E>

where T: Default,

fn from(result: Result<T, E>) -> ValueResult<T, E>

Converts to this type from the input type.

impl<T, E> PartialEq for ValueResult<T, E>

where T: PartialEq, E: PartialEq,

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T, E> Eq for ValueResult<T, E>

where T: Eq, E: Eq,

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