Struct SubType 

pub struct SubType {
    pub is_final: bool,
    pub supertype_idx: Option<PackedIndex>,
    pub composite_type: CompositeType,
}

Represents a subtype of possible other types in a WebAssembly module.

Fields

is_final: bool

Is the subtype final.

supertype_idx: Option<PackedIndex>

The list of supertype indexes. As of GC MVP, there can be at most one supertype.

composite_type: CompositeType

The composite type of the subtype.

Implementations

impl SubType

pub fn unwrap_array(&self) -> &ArrayType

Unwrap an ArrayType or panic.

Does not check finality or whether there is a supertype.

pub fn func(signature: FuncType, shared: bool) -> SubType

Construct a function SubType.

pub fn unwrap_func(&self) -> &FuncType

Unwrap an FuncType or panic.

Does not check finality or whether there is a supertype.

pub fn unwrap_struct(&self) -> &StructType

Unwrap an StructType or panic.

Does not check finality or whether there is a supertype.

pub fn unwrap_cont(&self) -> &ContType

Unwrap an ContType or panic.

Does not check finality or whether there is a supertype.

Trait Implementations

impl Clone for SubType

fn clone(&self) -> SubType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SubType

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

Formats the value using the given formatter.

impl Display for SubType

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

Formats the value using the given formatter.

impl<'a> FromReader<'a> for SubType

fn from_reader( reader: &mut BinaryReader<'a>, ) -> Result<SubType, BinaryReaderError>

Attempts to read Self from the provided binary reader, returning an error if it is unable to do so.

impl Hash for SubType

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SubType

fn cmp(&self, other: &SubType) -> 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 SubType

fn eq(&self, other: &SubType) -> 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 SubType

fn partial_cmp(&self, other: &SubType) -> 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 TryFrom<SubType> for SubType

type Error = Error

The type returned in the event of a conversion error.

fn try_from( sub_ty: SubType, ) -> Result<SubType, <SubType as TryFrom<SubType>>::Error>

Performs the conversion.

impl TypeData for SubType

const IS_CORE_SUB_TYPE: bool = true

Is this type a core sub type (or rec group of sub types)?

type Id = CoreTypeId

The identifier for this type data.

impl Eq for SubType

impl StructuralPartialEq for SubType