Struct wasmedge_sdk::Table

pub struct Table { /* private fields */ }

Defines a table storing the references to host functions or external objects.

Implementations

impl Table

pub fn new(ty: TableType) -> WasmEdgeResult<Self>

Creates a new wasm table instance with the given type.

Argument

• ty - The type of the table instance to be created.

Error

• If fail to create the table instance, then WasmEdgeError::Table(TableError::Create)(crate::error::TableError) is returned.

pub fn name(&self) -> Option<&str>

Returns the exported name of this table instance.

Notice that this field is meaningful only if this table is used as an exported instance.

pub fn mod_name(&self) -> Option<&str>

Returns the name of the module instance from which this table instance exports.

Notice that this field is meaningful only if this table is used as an exported instance.

pub fn ty(&self) -> &TableType

Returns a reference to the type of this table.

pub fn size(&self) -> u32

Returns the size of this Table.

pub fn grow(&mut self, delta: u32, init: Option<Val>) -> WasmEdgeResult<u32>

Grows the size of this table by delta, initializing the elements with the provided init value if init is given. Returns the previous size of the table.

Arguments

• delta - The number of elements to grow the table instance by.

• init - The value to initialize the new table slots with.

Error

If fail to grow the table, then an error is returned.

pub fn get(&self, index: u32) -> WasmEdgeResult<Val>

Returns the table element at the index.

Argument

• index - the index of the table element to get.

Error

If fail to get the table element, then an error is returned.

pub fn set(&mut self, index: u32, data: Val) -> WasmEdgeResult<()>

Stores the data at the index of this table.

Arguments

• index - the index of the table element to store.

• data - the data to store at the index of this table.

Error

If fail to store the data, then an error is returned.

Trait Implementations

impl Clone for Table

fn clone(&self) -> Table

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Table

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

Formats the value using the given formatter.