Struct wasmtime_environ::wasmparser::ProducersSectionReader

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

A reader for the producers custom section of a WebAssembly module.

Implementations

impl<'a> ProducersSectionReader<'a>

pub fn new(
    data: &'a [u8],
    offset: usize
) -> Result<ProducersSectionReader<'a>, BinaryReaderError>

Creates reader for the producers section.

Examples

use wasmparser::{ProducersSectionReader, ProducersFieldValue, Result};
let mut reader = ProducersSectionReader::new(data, 0).expect("producers reader");
let field = reader.read().expect("producers field");
assert!(field.name == "language");
let mut values_reader = field.get_producer_field_values_reader().expect("values reader");
let value = values_reader.into_iter().collect::<Result<Vec<ProducersFieldValue>>>().expect("values");
assert!(value.len() == 2);
assert!(value[0].name == "wat" && value[0].version == "1");
assert!(value[1].name == "C" && value[1].version == "9.0");

pub fn original_position(&self) -> usize

Gets the original position of the reader.

pub fn get_count(&self) -> u32

Gets the count of items in the reader.

pub fn read<'b>(&mut self) -> Result<ProducersField<'b>, BinaryReaderError> where
    'a: 'b, 

Reads an item from the reader.

Trait Implementations

impl<'a> IntoIterator for ProducersSectionReader<'a>

type Item = Result<ProducersField<'a>, BinaryReaderError>

The type of the elements being iterated over.

type IntoIter = SectionIteratorLimited<ProducersSectionReader<'a>>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <ProducersSectionReader<'a> as IntoIterator>::IntoIter

Creates an iterator from a value.

impl<'a> SectionReader for ProducersSectionReader<'a>

type Item = ProducersField<'a>

The item returned by the reader.

fn read(
    &mut self
) -> Result<<ProducersSectionReader<'a> as SectionReader>::Item, BinaryReaderError>

Reads an item from the section.

fn eof(&self) -> bool

Determines if the reader is at end-of-section.

fn original_position(&self) -> usize

Gets the original position of the reader.

fn range(&self) -> Range<usize>

Gets the range of the reader.

fn ensure_end(&self) -> Result<(), BinaryReaderError>

Ensures the reader is at the end of the section.

impl<'a> SectionWithLimitedItems for ProducersSectionReader<'a>

fn get_count(&self) -> u32

Gets the count of the items in the section.