Struct wasmtime_environ::wasmparser::BrTable

pub struct BrTable<'a> { /* private fields */ }

A br_table entries representation.

Implementations

impl<'a> BrTable<'a>

pub fn len(&self) -> u32

Returns the number of br_table entries, not including the default label

pub fn is_empty(&self) -> bool

Returns whether BrTable doesn’t have any labels apart from the default one.

pub fn default(&self) -> u32

Returns the default target of this br_table instruction.

pub fn targets(&self) -> BrTableTargets<'_>

Returns the list of targets that this br_table instruction will be jumping to.

This method will return an iterator which parses each target of this br_table except the default target. The returned iterator will yield self.len() elements.

Examples

use wasmparser::{BinaryReader, Operator};

let buf = [0x0e, 0x02, 0x01, 0x02, 0x00];
let mut reader = BinaryReader::new(&buf, 0);
let op = reader.read_operator().unwrap();
if let Operator::BrTable { targets } = op {
    let targets = targets.targets().collect::<Result<Vec<_>, _>>().unwrap();
    assert_eq!(targets, [1, 2]);
}

Trait Implementations

impl<'a> Clone for BrTable<'a>

fn clone(&self) -> BrTable<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BrTable<'_>

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

Formats the value using the given formatter.

impl PartialEq for BrTable<'_>

fn eq(&self, other: &BrTable<'_>) -> 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 Eq for BrTable<'_>