Struct TableType 

pub struct TableType { /* private fields */ }

A descriptor for a table in a WebAssembly module.

Tables are contiguous chunks of a specific element, typically a funcref or an externref. The most common use for tables is a function table through which call_indirect can invoke other functions.

Implementations

impl TableType

pub fn new(element: RefType, min: u32, max: Option<u32>) -> TableType

Available on crate feature runtime only.

Creates a new table descriptor which will contain the specified element and have the limits applied to its length.

pub fn new64(element: RefType, min: u64, max: Option<u64>) -> TableType

Available on crate feature runtime only.

Crates a new descriptor for a 64-bit table.

Note that 64-bit tables are part of the memory64 proposal for WebAssembly which is not standardized yet.

pub fn is_64(&self) -> bool

Available on crate feature runtime only.

Returns whether or not this table is a 64-bit table.

Note that 64-bit tables are part of the memory64 proposal for WebAssembly which is not standardized yet.

pub fn element(&self) -> &RefType

Available on crate feature runtime only.

Returns the element value type of this table.

pub fn minimum(&self) -> u64

Available on crate feature runtime only.

Returns minimum number of elements this table must have

pub fn maximum(&self) -> Option<u64>

Available on crate feature runtime only.

Returns the optionally-specified maximum number of elements this table can have.

If this returns None then the table is not limited in size.

pub fn default_value(&self, store: impl AsContextMut) -> Result<RuntimeTable>

Available on crate feature runtime only.

Construct a new table import whose entries are filled with this type’s default.

Creates a host Table in the store with its initial size and element type’s default (e.g. null_ref for nullable refs).

Trait Implementations

impl Clone for TableType

Available on crate feature runtime only.

fn clone(&self) -> TableType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableType

Available on crate feature runtime only.

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

Formats the value using the given formatter.

impl From<TableType> for ExternType

Available on crate feature runtime only.

fn from(ty: TableType) -> ExternType

Converts to this type from the input type.

impl Hash for TableType

Available on crate feature runtime only.

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.