Struct MemoryType

pub struct MemoryType {
    pub minimum: u64,
    pub maximum: Option<u64>,
    pub memory64: bool,
    pub shared: bool,
    pub page_size_log2: Option<u32>,
}

A memory’s type.

Fields

minimum: u64

Minimum size, in pages, of this memory

maximum: Option<u64>

Maximum size, in pages, of this memory

memory64: bool

Whether or not this is a 64-bit memory.

shared: bool

Whether or not this memory is shared.

page_size_log2: Option<u32>

The log base 2 of a custom page size for this memory.

The default page size for Wasm memories is 64KiB, i.e. 2¹⁶ or 65536.

After the introduction of the custom-page-sizes proposal, Wasm can customize the page size. It must be a power of two that is less than or equal to 64KiB. Attempting to encode an invalid page size may panic.

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

Formats the value using the given formatter.

impl Encode for MemoryType

fn encode(&self, sink: &mut Vec<u8>)

Encode the type into the given byte sink.

impl From<MemoryType> for EntityType

fn from(t: MemoryType) -> Self

Converts to this type from the input type.

impl From<MemoryType> for MemoryType

Available on crate feature wasmparser only.

fn from(memory_ty: MemoryType) -> Self

Converts to this type from the input type.

impl Hash for MemoryType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for MemoryType

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for MemoryType

impl Eq for MemoryType

impl StructuralPartialEq for MemoryType