Enum wast::HeapType

pub enum HeapType<'a> {
    Func,
    Extern,
    Any,
    Exn,
    Eq,
    I31,
    Index(Index<'a>),
}

A heap type for a reference type

Variants

Func

An untyped function reference: funcref. This is part of the reference types proposal.

Extern

A reference to any host value: externref. This is part of the reference types proposal.

Any

A reference to any reference value: anyref. This is part of the GC proposal.

Exn

A reference to an exception: exnref. This is part of the exception handling proposal.

Eq

A reference that has an identity that can be compared: eqref. This is part of the GC proposal.

I31

An unboxed 31-bit integer: i31ref. This may be going away if there is no common supertype of all reference types. Part of the GC proposal.

Index(Index<'a>)

A reference to a function, struct, or array: ref T. This is part of the GC proposal.

Trait Implementations

impl<'a> Clone for HeapType<'a>

fn clone(&self) -> HeapType<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for HeapType<'a>

impl<'a> Debug for HeapType<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for HeapType<'a>

impl<'a> Hash for HeapType<'a>

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl<'a> Parse<'a> for HeapType<'a>

fn parse(parser: Parser<'a>) -> Result<Self>

Attempts to parse Self from parser, returning an error if it could not be parsed.

impl<'a> PartialEq<HeapType<'a>> for HeapType<'a>

fn eq(&self, other: &HeapType<'a>) -> bool

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

fn ne(&self, other: &HeapType<'a>) -> bool

This method tests for !=.

impl<'a> Peek for HeapType<'a>

fn peek(cursor: Cursor<'_>) -> bool

Tests to see whether this token is the first token within the Cursor specified.

fn display() -> &'static str

Returns a human-readable name of this token to display when generating errors about this token missing.

fn peek2(cursor: Cursor<'_>) -> bool

The same as peek, except it checks the token immediately following the current token.

impl<'a> StructuralEq for HeapType<'a>

impl<'a> StructuralPartialEq for HeapType<'a>