Struct wasmer_runtime::WasmPtr

#[repr(transparent)]
pub struct WasmPtr<T, Ty = Item> where
    T: Copy,  { /* fields omitted */ }

A pointer to a Wasm item.

Methods

impl<T, Ty> WasmPtr<T, Ty> where
    T: Copy, 

pub fn new(offset: u32) -> WasmPtr<T, Ty>

Create a new WasmPtr at the given offset.

pub fn offset(self) -> u32

Get the offset for this WasmPtr.

impl<T> WasmPtr<T, Item> where
    T: ValueType + Copy, 

pub fn deref(self, memory: &'a Memory) -> Option<&'a Cell<T>>

Dereference this WasmPtr.

pub unsafe fn deref_mut(self, memory: &'a Memory) -> Option<&'a mut Cell<T>>

Mutable dereference this WasmPtr.

impl<T> WasmPtr<T, Array> where
    T: ValueType + Copy, 

pub fn deref(
    self,
    memory: &'a Memory,
    index: u32,
    length: u32
) -> Option<&'a [Cell<T>]>

Dereference this WasmPtr.

pub unsafe fn deref_mut(
    self,
    memory: &'a Memory,
    index: u32,
    length: u32
) -> Option<&'a mut [Cell<T>]>

Mutable dereference this WasmPtr.

pub fn get_utf8_string(
    self,
    memory: &'a Memory,
    str_len: u32
) -> Option<&'a str>

Get a UTF-8 string representation of this WasmPtr with the given length.

pub fn get_utf8_string_with_nul(self, memory: &'a Memory) -> Option<&'a str>

Get a UTF-8 string representation of this WasmPtr, where the string is nul-terminated. Note that this does not account for UTF-8 strings that contain nul themselves, [get_utf8_string] has to be used for those.

Trait Implementations

impl<T, Ty> Clone for WasmPtr<T, Ty> where
    T: Copy, 

fn clone(&self) -> WasmPtr<T, Ty>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T, Ty> Copy for WasmPtr<T, Ty> where
    T: Copy, 

impl<T, Ty> Debug for WasmPtr<T, Ty> where
    T: Copy, 

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

Formats the value using the given formatter.

impl<T, Ty> Eq for WasmPtr<T, Ty> where
    T: Copy, 

impl<T, Ty> PartialEq<WasmPtr<T, Ty>> for WasmPtr<T, Ty> where
    T: Copy, 

fn eq(&self, other: &WasmPtr<T, Ty>) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<T, Ty> ValueType for WasmPtr<T, Ty> where
    T: Copy, 

impl<T, Ty> WasmExternType for WasmPtr<T, Ty> where
    T: Copy, 

type Native = i32

Native wasm type for this WasmExternType.

fn to_native(self) -> <WasmPtr<T, Ty> as WasmExternType>::Native

Convert self to Native type.

fn from_native(n: <WasmPtr<T, Ty> as WasmExternType>::Native) -> WasmPtr<T, Ty>

Convert from given Native type to self.