Struct LinearTable

pub struct LinearTable { /* private fields */ }

A table instance.

Implementations

impl LinearTable

pub fn new(table: &TableType, style: &TableStyle) -> Result<Self, String>

Create a new linear table instance with specified minimum and maximum number of elements.

This creates a LinearTable with metadata owned by a VM, pointed to by vm_table_location: this can be used to create a local table.

pub unsafe fn from_definition( table: &TableType, style: &TableStyle, vm_table_location: NonNull<VMTableDefinition>, ) -> Result<Self, String>

Create a new linear table instance with specified minimum and maximum number of elements.

This creates a LinearTable with metadata owned by a VM, pointed to by vm_table_location: this can be used to create a local table.

Safety

• vm_table_location must point to a valid location in VM memory.

Trait Implementations

impl Debug for LinearTable

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

Formats the value using the given formatter.

impl Table for LinearTable

fn ty(&self) -> &TableType

Returns the type for this Table.

fn style(&self) -> &TableStyle

Returns the style for this Table.

fn size(&self) -> u32

Returns the number of allocated elements.

fn grow(&self, delta: u32, init_value: TableElement) -> Option<u32>

Grow table by the specified amount of elements.

Returns None if table can’t be grown by the specified amount of elements, otherwise returns the previous size of the table.

fn get(&self, index: u32) -> Option<TableElement>

Get reference to the specified element.

Returns None if the index is out of bounds.

fn set(&self, index: u32, reference: TableElement) -> Result<(), Trap>

Set reference to the specified element.

Errors

Returns an error if the index is out of bounds.

fn vmtable(&self) -> NonNull<VMTableDefinition>

Return a VMTableDefinition for exposing the table to compiled wasm code.

fn copy( &self, src_table: &dyn Table, dst_index: u32, src_index: u32, len: u32, ) -> Result<(), Trap>

Copy len elements from src_table[src_index..] into dst_table[dst_index..].

impl Send for LinearTable

This is correct because there is no thread-specific data tied to this type.

impl Sync for LinearTable

This is correct because all internal mutability is protected by a mutex.