Struct rustc_ast::ast::FnHeader

pub struct FnHeader {
    pub unsafety: Unsafe,
    pub asyncness: Async,
    pub constness: Const,
    pub ext: Extern,
}

A function header.

All the information between the visibility and the name of the function is included in this struct (e.g., async unsafe fn or const extern "C" fn).

Fields

unsafety: Unsafe

The unsafe keyword, if any

asyncness: Async

The async keyword, if any

constness: Const

The const keyword, if any

ext: Extern

The extern keyword and corresponding ABI string, if any

Implementations

impl FnHeader

pub fn has_qualifiers(&self) -> bool

Does this function header have any qualifiers or is it empty?

Trait Implementations

impl Clone for FnHeader

fn clone(&self) -> FnHeader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FnHeader

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

Formats the value using the given formatter.

impl<__D: Decoder> Decodable<__D> for FnHeader

fn decode(__decoder: &mut __D) -> Self

impl Default for FnHeader

fn default() -> FnHeader

Returns the “default value” for a type.

impl<__E: Encoder> Encodable<__E> for FnHeader

fn encode(&self, __encoder: &mut __E)

impl Copy for FnHeader

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 72 bytes