Struct wasmparser::BrTable

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

A br_table entries representation.

Implementations

impl<'a> BrTable<'a>

pub fn len(&self) -> usize

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 read_table(&self) -> Result<(Box<[u32]>, u32)>

Reads br_table entries.

Examples

let buf = vec![0x0e, 0x02, 0x01, 0x02, 0x00];
let mut reader = wasmparser::BinaryReader::new(&buf);
let op = reader.read_operator().unwrap();
if let wasmparser::Operator::BrTable { ref table } = op {
    let br_table_depths = table.read_table().unwrap();
    assert!(br_table_depths.0 == vec![1,2].into_boxed_slice() &&
            br_table_depths.1 == 0);
} else {
    unreachable!();
}

Trait Implementations

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

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for BrTable<'a>

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

Formats the value using the given formatter.

impl<'a> IntoIterator for &'a BrTable<'a>

type Item = u32

The type of the elements being iterated over.

type IntoIter = BrTableIterator<'a>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.