Struct wasmtime_runtime::Table [−][src]
pub struct Table { /* fields omitted */ }A table instance.
Implementations
impl Table[src]
impl Table[src]pub fn new(plan: &TablePlan) -> Self[src]
Create a new table instance with specified minimum and maximum number of elements.
pub fn element_type(&self) -> TableElementType[src]
Returns the type of the elements in this table.
pub fn size(&self) -> u32[src]
Returns the number of allocated elements.
pub fn fill(&self, dst: u32, val: TableElement, len: u32) -> Result<(), Trap>[src]
Fill table[dst..dst + len] with val.
Returns a trap error on out-of-bounds accesses.
pub unsafe fn grow(&self, delta: u32, init_value: TableElement) -> Option<u32>[src]
Grow table by the specified amount of elements.
Returns the previous size of the table if growth is successful.
Returns None if table can’t be grown by the specified amount of
elements, or if the init_value is the wrong kind of table element.
Unsafety
Resizing the table can reallocate its internal elements buffer. This
table’s instance’s VMContext has raw pointers to the elements buffer
that are used by Wasm, and they need to be fixed up before we call into
Wasm again. Failure to do so will result in use-after-free inside Wasm.
Generally, prefer using InstanceHandle::table_grow, which encapsulates
this unsafety.
pub fn get(&self, index: u32) -> Option<TableElement>[src]
Get reference to the specified element.
Returns None if the index is out of bounds.
pub fn set(&self, index: u32, elem: TableElement) -> Result<(), ()>[src]
Set reference to the specified element.
Errors
Returns an error if index is out of bounds or if this table type does
not match the element type.
pub fn copy(
dst_table: &Self,
src_table: &Self,
dst_index: u32,
src_index: u32,
len: u32
) -> Result<(), Trap>[src]
dst_table: &Self,
src_table: &Self,
dst_index: u32,
src_index: u32,
len: u32
) -> Result<(), Trap>
Copy len elements from src_table[src_index..] into dst_table[dst_index..].
Errors
Returns an error if the range is out of bounds of either the source or destination tables.
pub fn vmtable(&self) -> VMTableDefinition[src]
Return a VMTableDefinition for exposing the table to compiled wasm code.