Enum AbiValue 

pub enum AbiValue {
    C {
        unwind: bool,
    },
    System {
        unwind: bool,
    },
    Rust,
    Aapcs {
        unwind: bool,
    },
    Cdecl {
        unwind: bool,
    },
    Stdcall {
        unwind: bool,
    },
    Fastcall {
        unwind: bool,
    },
    Thiscall {
        unwind: bool,
    },
    Vectorcall {
        unwind: bool,
    },
    SysV64 {
        unwind: bool,
    },
    Win64 {
        unwind: bool,
    },
    EfiApi,
}

The abi or calling convention of a function pointer.

Variants

C

This is the same as extern fn foo(); whatever the default your C compiler supports.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

System

Usually the same as extern "C", except on Win32, in which case it’s "stdcall", or what you should use to link to the Windows API itself.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

Rust

The default abi when you write a normal fn foo() in any Rust code.

Aapcs

The default for ARM.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

Cdecl

The default for x86_32 C code.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

Stdcall

The default for the Win32 API on x86_32.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

Fastcall

The fastcall abi.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

Thiscall

The Windows C++ abi.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

Vectorcall

The vectorcall abi.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

SysV64

The default for C code on non-Windows x86_64.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

Win64

The default for C code on x86_64 Windows.

Fields

unwind: bool

Whether unwinding across this abi boundary is allowed (*-unwind).

EfiApi

UEFI ABI, usually an alias of C, but sometimes an arch-specific alias.

Implementations

impl AbiValue

pub const fn allows_unwind(&self) -> bool

Returns whether unwinding after a panic is allowed inside the called function.

pub fn canonize(self, has_c_varargs: bool) -> Option<AbiValue>

Canonicalize this abi for the current target.

Maps aliases (e.g. system, cdecl) to the concrete abi actually used on the current OS/architecture, following Rust compiler rules.

Returns None if this abi is not supported on the current target.

impl AbiValue

pub const fn to_str(&self) -> &'static str

Returns the string representation of this abi.

pub const fn from_str_const(conv: &'static str) -> Option<Self>

The same as the FromStr implementation, but (only!) for use in const contexts.

Trait Implementations

impl Clone for AbiValue

fn clone(&self) -> AbiValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AbiValue

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

Formats the value using the given formatter.

impl Display for AbiValue

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

Formats the value using the given formatter.

impl FromStr for AbiValue

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for AbiValue

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 Ord for AbiValue

fn cmp(&self, other: &AbiValue) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for AbiValue

fn eq(&self, other: &AbiValue) -> 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 PartialOrd for AbiValue

fn partial_cmp(&self, other: &AbiValue) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for AbiValue

impl Eq for AbiValue

impl StructuralPartialEq for AbiValue