Struct MemoryRefMut

pub struct MemoryRefMut<'a>(/* private fields */);

A borrowed reference to a memory instance

Implementations

impl MemoryRefMut<'_>

pub fn load(&self, offset: usize, len: usize) -> Result<&[u8]>

Load a slice of memory

pub fn load_vec(&self, offset: usize, len: usize) -> Result<Vec<u8>>

Load a slice of memory as a vector

pub fn grow(&mut self, delta_pages: i32) -> Option<i32>

Grow the memory by the given number of pages

pub fn page_count(&mut self) -> usize

Get the current size of the memory in pages

pub fn copy_within(&mut self, src: usize, dst: usize, len: usize) -> Result<()>

Copy a slice of memory to another place in memory

pub fn fill(&mut self, offset: usize, len: usize, val: u8) -> Result<()>

Fill a slice of memory with a value

pub fn store(&mut self, offset: usize, len: usize, data: &[u8]) -> Result<()>

Store a slice of memory

Trait Implementations

impl<'a> Debug for MemoryRefMut<'a>

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

Formats the value using the given formatter.

impl MemoryStringExt for MemoryRefMut<'_>

fn load_cstr(&self, offset: usize, len: usize) -> Result<&CStr>

Load a C-style string from memory

fn load_cstr_until_nul(&self, offset: usize, max_len: usize) -> Result<&CStr>

Load a C-style string from memory, stopping at the first nul byte

fn load_string(&self, offset: usize, len: usize) -> Result<String>

Load a UTF-8 string from memory

fn load_cstring(&self, offset: usize, len: usize) -> Result<CString>

Load a C-style string from memory

fn load_cstring_until_nul( &self, offset: usize, max_len: usize, ) -> Result<CString>

Load a C-style string from memory, stopping at the first nul byte

fn load_js_string(&self, offset: usize, len: usize) -> Result<String>

Load a JavaScript-style utf-16 string from memory