EvmStack

revmc_context

Struct EvmStack 

Source 
#[repr(C)]
pub struct EvmStack(pub(crate) [MaybeUninit<EvmWord>; 1024]);
Expand description

EVM context stack.

Tuple Fields§

§0: [MaybeUninit<EvmWord>; 1024]

Implementations§

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impl EvmStack

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pub const SIZE: usize

The size of the stack in bytes.

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pub const CAPACITY: usize = 1024

The size of the stack in U256 elements.

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pub fn new() -> Self

Creates a new EVM stack, allocated on the stack.

Use EvmStack::new_heap to create a stack on the heap.

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pub fn new_heap() -> Vec<EvmWord>

Creates a vector that can be used as a stack.

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pub fn from_interpreter_stack(stack: &mut Stack) -> (&mut Self, &mut usize)

Creates a stack from the interpreter’s stack. Assumes that the stack is large enough.

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pub fn from_vec(vec: &Vec<EvmWord>) -> &Self

Creates a stack from a vector’s buffer.

§Panics

Panics if the vector’s capacity is less than the required stack capacity.

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pub fn from_mut_vec(vec: &mut Vec<EvmWord>) -> &mut Self

Creates a stack from a mutable vector’s buffer.

§Panics

Panics if the vector’s capacity is less than the required stack capacity.

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pub const unsafe fn from_ptr(ptr: *const EvmWord) -> &'static Self

Creates a stack from a pointer to a buffer.

§Safety

See from_vec.

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pub unsafe fn from_mut_ptr(ptr: *mut EvmWord) -> &'static mut Self

Creates a stack from a mutable pointer to a buffer.

§Safety

See from_mut_vec.

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pub const fn as_ptr(&self) -> *const EvmWord

Returns a pointer to the stack.

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pub fn as_mut_ptr(&mut self) -> *mut EvmWord

Returns a mutable pointer to the stack.

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pub fn as_slice(&self) -> &[EvmWord]

Returns a slice of the stack.

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pub fn as_mut_slice(&mut self) -> &mut [EvmWord]

Returns a mutable slice of the stack.

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pub fn get(&self, index: usize) -> Option<&EvmWord>

Returns the word at the given index as a reference.

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pub fn get_mut(&mut self, index: usize) -> Option<&mut EvmWord>

Returns the word at the given index as a mutable reference.

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pub unsafe fn get_unchecked(&self, index: usize) -> &EvmWord

Returns the word at the given index as a reference.

§Safety

The caller must ensure that the index is within bounds.

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pub unsafe fn get_unchecked_mut(&mut self, index: usize) -> &mut EvmWord

Returns the word at the given index as a mutable reference.

§Safety

The caller must ensure that the index is within bounds.

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pub unsafe fn push(&mut self, value: EvmWord, len: &mut usize)

Sets the value at the top of the stack to value, and grows the stack by 1.

§Safety

The caller must ensure that the stack is not full.

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pub unsafe fn top_unchecked(&self, len: usize) -> &EvmWord

Returns the value at the top of the stack.

§Safety

The caller must ensure that the stack is not empty.

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pub unsafe fn top_unchecked_mut(&mut self, len: usize) -> &mut EvmWord

Returns the value at the top of the stack as a mutable reference.

§Safety

The caller must ensure that the stack is not empty.

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pub unsafe fn from_top_unchecked(&self, len: usize, n: usize) -> &EvmWord

Returns the value at the given index from the top of the stack.

§Safety

The caller must ensure that len >= n + 1.

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pub unsafe fn from_top_unchecked_mut( &mut self, len: usize, n: usize, ) -> &mut EvmWord

Returns the value at the given index from the top of the stack as a mutable reference.

§Safety

The caller must ensure that len >= n + 1.

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pub unsafe fn set_unchecked(&mut self, index: usize, value: EvmWord)

Sets the value at the given index.

§Safety

The caller must ensure that the index is within bounds.

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Size: 32768 bytes