Struct revm::Stack

pub struct Stack { /* private fields */ }

EVM stack.

Implementations

impl Stack

pub fn new() -> Self

Create a new stack with given limit.

pub fn len(&self) -> usize

Stack length.

pub fn is_empty(&self) -> bool

Whether the stack is empty.

pub fn data(&self) -> &Vec<U256>

Stack data.

pub fn reduce_one(&mut self) -> Return

pub fn pop(&mut self) -> Result<U256, Return>

Pop a value from the stack. If the stack is already empty, returns the StackUnderflow error.

pub unsafe fn pop_unsafe(&mut self) -> U256

Pops a value from the stack, returning it.

Safety

The caller is responsible to check length of array

pub unsafe fn top_unsafe(&mut self) -> &mut U256

Peeks the top of the stack.

Safety

The caller is responsible to check length of array

pub unsafe fn pop_top_unsafe(&mut self) -> (U256, &mut U256)

Pop the topmost value, returning the value and the new topmost value.

Safety

The caller is responsible to check length of array

pub unsafe fn pop2_top_unsafe(&mut self) -> (U256, U256, &mut U256)

Pops 2 values from the stack and returns them, in addition to the new topmost value.

Safety

The caller is responsible to check length of array

pub unsafe fn pop2_unsafe(&mut self) -> (U256, U256)

Pops 2 alues from the stack.

Safety

The caller is responsible to check length of array

pub unsafe fn pop3_unsafe(&mut self) -> (U256, U256, U256)

Pops 3 values from the stack.

Safety

The caller is responsible to check length of array

pub unsafe fn pop4_unsafe(&mut self) -> (U256, U256, U256, U256)

Pops 4 values from the stack.

Safety

The caller is responsible to check length of array

pub fn push_h256(&mut self, value: H256) -> Result<(), Return>

Push a new value into the stack. If it will exceed the stack limit, returns StackOverflow error and leaves the stack unchanged.

pub fn push(&mut self, value: U256) -> Result<(), Return>

Push a new value into the stack. If it will exceed the stack limit, returns StackOverflow error and leaves the stack unchanged.

pub fn peek(&self, no_from_top: usize) -> Result<U256, Return>

Peek a value at given index for the stack, where the top of the stack is at index 0. If the index is too large, StackError::Underflow is returned.

pub fn dup<const N: usize>(&mut self) -> Return

pub fn swap<const N: usize>(&mut self) -> Return

pub fn push_slice<const N: usize>(&mut self, slice: &[u8]) -> Return

push slice onto memory it is expected to be max 32 bytes and be contains inside H256

pub fn set(&mut self, no_from_top: usize, val: U256) -> Result<(), Return>

Set a value at given index for the stack, where the top of the stack is at index 0. If the index is too large, StackError::Underflow is returned.

Trait Implementations

impl Clone for Stack

fn clone(&self) -> Stack

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for Stack

fn default() -> Self

Returns the “default value” for a type.

impl Display for Stack

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

Formats the value using the given formatter.