Struct externref::Function

pub struct Function<'a> {
    pub kind: FunctionKind<'a>,
    pub name: &'a str,
    pub externrefs: BitSlice<'a>,
}

Information about a function with Resource args or return type.

This information is written to a custom section of a WASM module and is then used during module post-processing.

Fields

kind: FunctionKind<'a>

Kind of this function.

name: &'a str

Name of this function.

externrefs: BitSlice<'a>

Bit slice marking Resource args / return type.

Implementations

impl<'a> Function<'a>

pub const CUSTOM_SECTION_NAME: &'static str = "__externrefs"

Name of a custom section in WASM modules where Function declarations are stored. Functions can be read from this section using Self::read_from_section().

pub fn read_from_section(buffer: &mut &'a [u8]) -> Result<Self, ReadError>

Reads function information from a WASM custom section. After reading, the buffer is advanced to trim the bytes consumed by the parser.

This crate does not provide tools to read custom sections from a WASM module; use a library like walrus or wasmparser for this purpose.

Errors

Returns an error if the custom section is malformed.

Trait Implementations

impl<'a> Debug for Function<'a>

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

Formats the value using the given formatter.