Struct Table 

pub struct Table { /* private fields */ }

A WebAssembly table instance.

Implementations

impl Table

pub fn new(ty: TableType, default: Value) -> Option<Self>

Create a table with min entries of default. Dense allocation is fallible (None on allocation failure); sparse storage never allocates eagerly.

pub fn ty(&self) -> &TableType

The table’s declared type (limits + element type).

pub fn len(&self) -> u32

Current entry count.

pub fn is_empty(&self) -> bool

Whether the table has no entries.

pub fn get(&self, idx: u32) -> Option<Value>

Read the entry at idx, or None when out of bounds.

pub fn set(&mut self, idx: u32, value: Value) -> bool

Write value at idx; false on out of bounds.

pub fn grow(&mut self, delta: u32, fill: Value) -> Option<u32>

Grow by delta entries filled with fill, returning the previous length, or None when the declared max (or allocation) rejects.

pub fn fill(&mut self, start: u32, value: Value, count: u32) -> bool

Fill count entries starting at start with value; false on out of bounds.

pub fn read_slice(&self, start: u32, count: u32) -> Option<Vec<Value>>

Snapshot entries in start..start + count; None on out of bounds.

pub fn write_slice(&mut self, start: u32, values: &[Value]) -> bool

Write values starting at start; false on out of bounds.

Trait Implementations

impl Clone for Table

fn clone(&self) -> Table

Returns a duplicate 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.