Enum wasmer_vm::TrapCode

#[repr(u32)]
pub enum TrapCode {
    StackOverflow = 0,
    HeapAccessOutOfBounds = 1,
    HeapMisaligned = 2,
    TableAccessOutOfBounds = 3,
    IndirectCallToNull = 4,
    BadSignature = 5,
    IntegerOverflow = 6,
    IntegerDivisionByZero = 7,
    BadConversionToInteger = 8,
    UnreachableCodeReached = 9,
    UnalignedAtomic = 10,
}

A trap code describing the reason for a trap.

All trap instructions have an explicit trap code.

Variants

StackOverflow = 0

The current stack space was exhausted.

On some platforms, a stack overflow may also be indicated by a segmentation fault from the stack guard page.

HeapAccessOutOfBounds = 1

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 = 2

A heap_addr instruction was misaligned.

TableAccessOutOfBounds = 3

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

IndirectCallToNull = 4

Indirect call to a null table entry.

BadSignature = 5

Signature mismatch on indirect call.

IntegerOverflow = 6

An integer arithmetic operation caused an overflow.

IntegerDivisionByZero = 7

An integer division by zero.

BadConversionToInteger = 8

Failed float-to-int conversion.

UnreachableCodeReached = 9

Code that was supposed to have been unreachable was reached.

UnalignedAtomic = 10

An atomic memory access was attempted with an unaligned pointer.

Implementations

impl TrapCode

pub fn message(&self) -> &str

Gets the message for this trap code

Trait Implementations

impl Archive for TrapCode

type Archived = TrapCode

The archived representation of this type.

type Resolver = TrapCodeResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

unsafe fn resolve( &self, pos: usize, resolver: <TrapCode as Archive>::Resolver, out: *mut <TrapCode as Archive>::Archived )

Creates the archived version of this value at the given position and writes it to the given output.

impl<__C> CheckBytes<__C> for TrapCode

where __C: ?Sized,

type Error = EnumCheckError<u32>

The error that may result from checking the type.

unsafe fn check_bytes<'__bytecheck>( value: *const TrapCode, context: &mut __C ) -> Result<&'__bytecheck TrapCode, EnumCheckError<u32>>

Checks whether the given pointer points to a valid value within the given context.

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<(), Error>

Formats the value using the given formatter.

impl<__D> Deserialize<TrapCode, __D> for <TrapCode as Archive>::Archived

where __D: Fallible + ?Sized,

fn deserialize( &self, deserializer: &mut __D ) -> Result<TrapCode, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl Display for TrapCode

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

Formats the value using the given formatter.

impl Error for TrapCode

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports.

impl FromStr for TrapCode

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<TrapCode, <TrapCode as FromStr>::Err>

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

impl Hash for TrapCode

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 PartialEq for TrapCode

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<__S> Serialize<__S> for TrapCode

where __S: Fallible + ?Sized,

fn serialize( &self, serializer: &mut __S ) -> Result<<TrapCode as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.

impl Copy for TrapCode

impl Eq for TrapCode

impl StructuralPartialEq for TrapCode