Enum concordium_std::SeekFrom

source · [−]

pub enum SeekFrom {
    Start(u32),
    End(i32),
    Current(i32),
}

Expand description

This is essentially equivalent to the SeekFrom type from the rust standard library, but reproduced here to avoid dependency on std::io, as well as to use 32-bit integers to specify positions. This saves some computation and space, and is adequate for the kind of data sizes that are possible in smart contracts.

Variants

`Start(u32)`

`End(i32)`

`Current(i32)`

Auto Trait Implementations

impl RefUnwindSafe for SeekFrom

impl Send for SeekFrom

impl Sync for SeekFrom

impl Unpin for SeekFrom

impl UnwindSafe for SeekFrom

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> 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.

impl<T, U> TryFrom<U> 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<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.

const: unstable · source

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

Performs the conversion.