wasmtime_environ::component

Struct CanonicalAbiInfo

source
pub struct CanonicalAbiInfo {
    pub size32: u32,
    pub align32: u32,
    pub size64: u32,
    pub align64: u32,
    pub flat_count: Option<u8>,
}
Expand description

Bye information about a type in the canonical ABI, with metadata for both memory32 and memory64-based types.

Fields§

§size32: u32

The byte-size of this type in a 32-bit memory.

§align32: u32

The byte-alignment of this type in a 32-bit memory.

§size64: u32

The byte-size of this type in a 64-bit memory.

§align64: u32

The byte-alignment of this type in a 64-bit memory.

§flat_count: Option<u8>

The number of types it takes to represents this type in the “flat” representation of the canonical abi where everything is passed as immediate arguments or results.

If this is None then this type is not representable in the flat ABI because it is too large.

Implementations§

source§

impl CanonicalAbiInfo

source

pub const SCALAR1: CanonicalAbiInfo = _

ABI information for one-byte scalars.

source

pub const SCALAR2: CanonicalAbiInfo = _

ABI information for two-byte scalars.

source

pub const SCALAR4: CanonicalAbiInfo = _

ABI information for four-byte scalars.

source

pub const SCALAR8: CanonicalAbiInfo = _

ABI information for eight-byte scalars.

source

pub const POINTER_PAIR: CanonicalAbiInfo = _

ABI information for lists/strings which are “pointer pairs”

source

pub fn record<'a>( fields: impl Iterator<Item = &'a CanonicalAbiInfo>, ) -> CanonicalAbiInfo

Returns the abi for a record represented by the specified fields.

source

pub const fn record_static(fields: &[CanonicalAbiInfo]) -> CanonicalAbiInfo

Same as CanonicalAbiInfo::record but in a const-friendly context.

source

pub fn next_field32(&self, offset: &mut u32) -> u32

Returns the delta from the current value of offset to align properly and read the next record field of type abi for 32-bit memories.

source

pub fn next_field32_size(&self, offset: &mut usize) -> usize

Same as next_field32, but bumps a usize pointer

source

pub fn next_field64(&self, offset: &mut u32) -> u32

Returns the delta from the current value of offset to align properly and read the next record field of type abi for 64-bit memories.

source

pub fn next_field64_size(&self, offset: &mut usize) -> usize

Same as next_field64, but bumps a usize pointer

source

pub const fn flags(count: usize) -> CanonicalAbiInfo

Returns ABI information for a structure which contains count flags.

source

pub const fn variant_static( cases: &[Option<CanonicalAbiInfo>], ) -> CanonicalAbiInfo

Same as CanonicalAbiInfo::variant but const-safe

source

pub const fn enum_(cases: usize) -> CanonicalAbiInfo

Calculates ABI information for an enum with cases cases.

source

pub fn flat_count(&self, max: usize) -> Option<usize>

Returns the flat count of this ABI information so long as the count doesn’t exceed the max specified.

Trait Implementations§

source§

impl Clone for CanonicalAbiInfo

source§

fn clone(&self) -> CanonicalAbiInfo

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for CanonicalAbiInfo

source§

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

Formats the value using the given formatter. Read more
source§

impl Default for CanonicalAbiInfo

source§

fn default() -> CanonicalAbiInfo

Returns the “default value” for a type. Read more
source§

impl<'de> Deserialize<'de> for CanonicalAbiInfo

source§

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

Deserialize this value from the given Serde deserializer. Read more
source§

impl Hash for CanonicalAbiInfo

source§

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

Feeds this value into the given Hasher. Read more
1.3.0 · source§

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

Feeds a slice of this type into the given Hasher. Read more
source§

impl PartialEq for CanonicalAbiInfo

source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

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

impl Serialize for CanonicalAbiInfo

source§

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

Serialize this value into the given Serde serializer. Read more
source§

impl Eq for CanonicalAbiInfo

source§

impl StructuralPartialEq for CanonicalAbiInfo

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> CloneToUninit for T
where T: Clone,

source§

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> ToOwned for T
where T: Clone,

source§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

source§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,