Enum TrapCode

pub enum TrapCode {
    StackOverflow,
    HeapOutOfBounds,
    HeapMisaligned,
    TableOutOfBounds,
    IndirectCallToNull,
    BadSignature,
    IntegerOverflow,
    IntegerDivisionByZero,
    BadConversionToInteger,
    UnreachableCodeReached,
    Interrupt,
    User(u16),
    NullReference,
    NullI31Ref,
}

A trap code describing the reason for a trap.

All trap instructions have an explicit trap code.

Variants

StackOverflow

The current stack space was exhausted.

HeapOutOfBounds

A heap_addr instruction detected an out-of-bounds error.

Note that not all out-of-bounds heap accesses are reported this way; some are detected by a segmentation fault on the heap unmapped or offset-guard pages.

HeapMisaligned

A wasm atomic operation was presented with a not-naturally-aligned linear-memory address.

TableOutOfBounds

A table_addr instruction detected an out-of-bounds error.

IndirectCallToNull

Indirect call to a null table entry.

BadSignature

Signature mismatch on indirect call.

IntegerOverflow

An integer arithmetic operation caused an overflow.

IntegerDivisionByZero

An integer division by zero.

BadConversionToInteger

Failed float-to-int conversion.

UnreachableCodeReached

Code that was supposed to have been unreachable was reached.

Interrupt

Execution has potentially run too long and may be interrupted.

User(u16)

A user-defined trap code.

NullReference

A null reference was encountered which was required to be non-null.

NullI31Ref

A null i31ref was encountered which was required to be non-null.

Implementations

impl TrapCode

pub const fn non_user_traps() -> &'static [TrapCode]

Returns a slice of all traps except TrapCode::User traps

Trait Implementations

impl Clone for TrapCode

fn clone(&self) -> TrapCode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TrapCode

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

Formats the value using the given formatter.

impl Display for TrapCode

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

Formats the value using the given formatter.

impl FromStr for TrapCode

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

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

impl Hash for TrapCode

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

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 PartialEq for TrapCode

fn eq(&self, other: &TrapCode) -> 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 Copy for TrapCode

impl Eq for TrapCode

impl StructuralPartialEq for TrapCode