Struct rustc_hir::hir::FnDecl

pub struct FnDecl<'hir> {
    pub inputs: &'hir [Ty<'hir>],
    pub output: FnRetTy<'hir>,
    pub c_variadic: bool,
    pub implicit_self: ImplicitSelfKind,
    pub lifetime_elision_allowed: bool,
}

Represents the header (not the body) of a function declaration.

Fields

inputs: &'hir [Ty<'hir>]

The types of the function’s parameters.

Additional argument data is stored in the function’s body.

output: FnRetTy<'hir>

c_variadic: bool

implicit_self: ImplicitSelfKind

Does the function have an implicit self?

lifetime_elision_allowed: bool

Is lifetime elision allowed.

Trait Implementations

impl<'tcx> ArenaAllocatable<'tcx, IsNotCopy> for FnDecl<'tcx>

fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut Self

fn allocate_from_iter<'a>(
    arena: &'a Arena<'tcx>,
    iter: impl IntoIterator<Item = Self>
) -> &'a mut [Self]

impl<'hir> Debug for FnDecl<'hir>

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

Formats the value using the given formatter.

impl<'hir, __CTX> HashStable<__CTX> for FnDecl<'hir>where
    __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

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