Struct rustc_ast::ast::FnDecl

pub struct FnDecl {
    pub inputs: Vec<Param>,
    pub output: FnRetTy,
}

A signature (not the body) of a function declaration.

E.g., fn foo(bar: baz).

Please note that it’s different from FnHeader structure which contains metadata about function safety, asyncness, constness and ABI.

Fields

inputs: Vec<Param>

output: FnRetTy

Implementations

impl FnDecl

pub fn has_self(&self) -> bool

pub fn c_variadic(&self) -> bool

Trait Implementations

impl Clone for FnDecl

fn clone(&self) -> FnDecl

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FnDecl

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

Formats the value using the given formatter.

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

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

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

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

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: 40 bytes