Struct wasmtime_environ::wasmparser::MemoryType

pub struct MemoryType {
    pub memory64: bool,
    pub shared: bool,
    pub initial: u64,
    pub maximum: Option<u64>,
}

Represents a memory’s type.

Fields

memory64: bool

Whether or not this is a 64-bit memory, using i64 as an index. If this is false it’s a 32-bit memory using i32 as an index.

This is part of the memory64 proposal in WebAssembly.

shared: bool

Whether or not this is a “shared” memory, indicating that it should be send-able across threads and the maximum field is always present for valid types.

This is part of the threads proposal in WebAssembly.

initial: u64

Initial size of this memory, in wasm pages.

For 32-bit memories (when memory64 is false) this is guaranteed to be at most u32::MAX for valid types.

maximum: Option<u64>

Optional maximum size of this memory, in wasm pages.

For 32-bit memories (when memory64 is false) this is guaranteed to be at most u32::MAX for valid types. This field is always present for valid wasm memories when shared is true.

Implementations

impl MemoryType

pub fn index_type(&self) -> ValType

Gets the index type for the memory.

Trait Implementations

impl Clone for MemoryType

fn clone(&self) -> MemoryType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryType

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

Formats the value using the given formatter.

impl From<MemoryType> for Memory

fn from(ty: MemoryType) -> Memory

Performs the conversion.

impl Hash for MemoryType

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, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<MemoryType> for MemoryType

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

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

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

This method tests for !=.

impl Copy for MemoryType

impl Eq for MemoryType

impl StructuralEq for MemoryType

impl StructuralPartialEq for MemoryType