Struct StorageSlot 

pub struct StorageSlot {
    pub previous_or_original_value: Uint<256, 4>,
    pub present_value: Uint<256, 4>,
}

This type keeps track of the current value of a storage slot.

Fields

previous_or_original_value: Uint<256, 4>

The value of the storage slot before it was changed.

When the slot is first loaded, this is the original value.

If the slot was not changed, this is equal to the present value.

present_value: Uint<256, 4>

When loaded with sload present value is set to original value

Implementations

impl StorageSlot

pub const fn new(original: Uint<256, 4>) -> StorageSlot

Creates a new unchanged StorageSlot for the given value.

pub const fn new_changed( previous_or_original_value: Uint<256, 4>, present_value: Uint<256, 4>, ) -> StorageSlot

Creates a new changed StorageSlot.

pub fn is_changed(&self) -> bool

Returns true if the present value differs from the original value

pub const fn original_value(&self) -> Uint<256, 4>

Returns the original value of the storage slot.

pub const fn present_value(&self) -> Uint<256, 4>

Returns the current value of the storage slot.

Trait Implementations

impl Clone for StorageSlot

fn clone(&self) -> StorageSlot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StorageSlot

impl Debug for StorageSlot

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

Formats the value using the given formatter.

impl Default for StorageSlot

fn default() -> StorageSlot

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for StorageSlot

fn deserialize<__D>( __deserializer: __D, ) -> Result<StorageSlot, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for StorageSlot

impl Hash for StorageSlot

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

where __H: Hasher,

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for StorageSlot

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for StorageSlot

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for StorageSlot

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 64 bytes