Struct CustomSectionReader

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

A reader for custom sections of a WebAssembly module.

Implementations

impl<'a> CustomSectionReader<'a>

pub fn new( reader: BinaryReader<'a>, ) -> Result<CustomSectionReader<'a>, BinaryReaderError>

Constructs a new CustomSectionReader for the given data and offset.

pub fn name(&self) -> &'a str

The name of the custom section.

pub fn data_offset(&self) -> usize

The offset, relative to the start of the original module or component, that the data payload for this custom section starts at.

pub fn data(&self) -> &'a [u8]

The actual contents of the custom section.

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

The range of bytes that specify this whole custom section (including both the name of this custom section and its data) specified in offsets relative to the start of the byte stream.

pub fn as_known(&self) -> KnownCustom<'a>

Attempts to match and see if this custom section is statically known to wasmparser with any known section reader.

This will inspect self.name() and return a KnownCustom if the name matches a known custom section where there is a parser available for it. This can also be used as a convenience function for creating such parsers.

If the custom section name is not known, or if a reader could not be created, then KnownCustom::Unknown is returned.

Trait Implementations

impl<'a> Clone for CustomSectionReader<'a>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for CustomSectionReader<'a>

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

Formats the value using the given formatter.