Struct Locator

#[repr(C)]
pub struct Locator { /* private fields */ }

A Locator allows a WASM developer located any field in any object (even nested fields) by specifying a slot_num (1 byte); a locator_field_type (1 byte); then one of an sfield (4 bytes) or an index (4 bytes).

Implementations

impl Locator

pub fn new_with_slot(slot_num: u8) -> Locator

Create a new Locator using an unsigned 8-bit slot number. Valid slots are 0 to 255.

pub fn new() -> Locator

Create a new Locator. Valid slots are 0 to 255.

pub fn pack(&mut self, sfield_or_index: i32) -> bool

pub fn get_addr(&self) -> *const u8

pub fn as_ptr(&self) -> *const u8

pub fn num_packed_bytes(&self) -> usize

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn repack_last(&mut self, sfield_or_index: i32) -> bool

Trait Implementations

impl Clone for Locator

fn clone(&self) -> Locator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Locator

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

Formats the value using the given formatter.

impl Default for Locator

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Locator

fn eq(&self, other: &Locator) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Locator

impl Eq for Locator

impl StructuralPartialEq for Locator