Enum wasmtime_environ::isa::CallConv

pub enum CallConv {
    Fast,
    Cold,
    SystemV,
    WindowsFastcall,
    AppleAarch64,
    BaldrdashSystemV,
    BaldrdashWindows,
    Baldrdash2020,
    Probestack,
    WasmtimeSystemV,
    WasmtimeFastcall,
}

Calling convention identifiers.

Variants

Fast

Best performance, not ABI-stable.

Cold

Smallest caller code size, not ABI-stable.

SystemV

System V-style convention used on many platforms.

WindowsFastcall

Windows “fastcall” convention, also used for x64 and ARM.

AppleAarch64

Mac aarch64 calling convention, which is a tweak aarch64 ABI.

BaldrdashSystemV

SpiderMonkey WebAssembly convention on systems using natively SystemV.

BaldrdashWindows

SpiderMonkey WebAssembly convention on Windows.

Baldrdash2020

SpiderMonkey WebAssembly convention for “ABI-2020”, with extra TLS register slots in the frame.

Probestack

Specialized convention for the probestack function.

WasmtimeSystemV

Wasmtime equivalent of SystemV, not ABI-stable.

Currently only differs in how multiple return values are handled, returning the first return value in a register and everything else through a return-pointer.

WasmtimeFastcall

Wasmtime equivalent of WindowsFastcall, not ABI-stable.

Differs from fastcall in the same way as WasmtimeSystemV.

Implementations

impl CallConv

pub fn triple_default(triple: &Triple) -> CallConv

Return the default calling convention for the given target triple.

pub fn for_libcall(flags: &Flags, default_call_conv: CallConv) -> CallConv

Returns the calling convention used for libcalls according to the current flags.

pub fn extends_windows_fastcall(self) -> bool

Is the calling convention extending the Windows Fastcall ABI?

pub fn extends_baldrdash(self) -> bool

Is the calling convention extending the Baldrdash ABI?

pub fn extends_wasmtime(self) -> bool

Is the calling convention extending the Wasmtime ABI?

Trait Implementations

impl Clone for CallConv

pub fn clone(&self) -> CallConv

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CallConv

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CallConv

pub fn deserialize<__D>(
    __deserializer: __D
) -> Result<CallConv, <__D as Deserializer<'de>>::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Display for CallConv

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

Formats the value using the given formatter.

impl FromStr for CallConv

type Err = ()

The associated error which can be returned from parsing.

pub fn from_str(s: &str) -> Result<CallConv, <CallConv as FromStr>::Err>

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

impl Hash for CallConv

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl PartialEq<CallConv> for CallConv

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

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

This method tests for !=.

impl Serialize for CallConv

pub fn serialize<__S>(
    &self,
    __serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl Copy for CallConv

impl Eq for CallConv

impl StructuralEq for CallConv

impl StructuralPartialEq for CallConv