Struct FnSigKind 

pub struct FnSigKind {
    flags: u8,
}

Contains the packed non-type fields of a function signature.

Fields

flags: u8

Holds the c_variadic and safety bitflags, and 6 bits for the ExternAbi variant and unwind flag.

Implementations

impl FnSigKind

const EXTERN_ABI_MASK: u8 = 0b111111

Mask for the ExternAbi variant, including the unwind flag.

const SAFE_FLAG: u8

Bitflag for Safety::Safe. The default is Unsafe.

const C_VARIADIC_FLAG: u8

Bitflag for a trailing C-style variadic argument.

pub const fn default() -> Self

Create a new FnSigKind with the “Rust” ABI, “Unsafe” safety, and no C-style variadic argument. To modify these flags, use the set_* methods, for readability.

pub const fn set_abi(self, abi: ExternAbi) -> Self

Set the ABI, including the unwind flag.

pub const fn set_safe(self, is_safe: bool) -> Self

Set the safety flag, true is Safe.

pub const fn set_c_variadic(self, c_variadic: bool) -> Self

Set the C-style variadic argument flag.

pub const fn abi(self) -> ExternAbi

Get the ABI, including the unwind flag.

pub const fn is_safe(self) -> bool

Get the safety flag.

pub const fn c_variadic(self) -> bool

Do the function arguments end with a C-style variadic argument?

Trait Implementations

impl Clone for FnSigKind

fn clone(&self) -> FnSigKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FnSigKind

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

Formats the value using the given formatter.

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

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

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

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

impl Hash for FnSigKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<__CTX> HashStable<__CTX> for FnSigKind

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

impl PartialEq for FnSigKind

fn eq(&self, other: &FnSigKind) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for FnSigKind

impl Eq for FnSigKind

impl StructuralPartialEq for FnSigKind

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: 1 byte