Enum WastRetCore 

pub enum WastRetCore<'a> {
    I32(i32),
    I64(i64),
    F32(NanPattern<F32>),
    F64(NanPattern<F64>),
    V128(V128Pattern),
    RefNull(Option<HeapType<'a>>),
    RefExtern(Option<u32>),
    RefHost(u32),
    RefFunc(Option<Index<'a>>),
    RefAny,
    RefEq,
    RefArray,
    RefStruct,
    RefI31,
    RefI31Shared,
    Either(Vec<WastRetCore<'a>>),
}

Expressions that can be used inside of assert_return to validate the return value of a core wasm function.

Variants

I32(i32)

I64(i64)

F32(NanPattern<F32>)

F64(NanPattern<F64>)

V128(V128Pattern)

RefNull(Option<HeapType<'a>>)

A null reference is expected, optionally with a specified type.

RefExtern(Option<u32>)

A non-null externref is expected which should contain the specified value.

RefHost(u32)

A non-null anyref is expected which should contain the specified host value.

RefFunc(Option<Index<'a>>)

A non-null funcref is expected.

RefAny

A non-null anyref is expected.

RefEq

A non-null eqref is expected.

RefArray

A non-null arrayref is expected.

RefStruct

A non-null structref is expected.

RefI31

A non-null i31ref is expected.

RefI31Shared

A non-null, shared i31ref is expected.

Either(Vec<WastRetCore<'a>>)

Trait Implementations

impl<'a> Debug for WastRetCore<'a>

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

Formats the value using the given formatter.

impl<'a> Parse<'a> for WastRetCore<'a>

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

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

impl Peek for WastRetCore<'_>

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

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