Enum wasmer_vm::TrapCode

#[repr(u32)]pub enum TrapCode {
    StackOverflow,
    HeapSetterOutOfBounds,
    HeapAccessOutOfBounds,
    HeapMisaligned,
    TableSetterOutOfBounds,
    TableAccessOutOfBounds,
    OutOfBounds,
    IndirectCallToNull,
    BadSignature,
    IntegerOverflow,
    IntegerDivisionByZero,
    BadConversionToInteger,
    UnreachableCodeReached,
    Interrupt,
    UnalignedAtomic,
    VMOutOfMemory,
}

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.

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

HeapSetterOutOfBounds

Memory data doesn't fit the memory size.

This only can happen during instantiation.

HeapAccessOutOfBounds

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 heap_addr instruction was misaligned.

TableSetterOutOfBounds

Table Elements doesn't fit the table size.

This only can happen during instantiation.

TableAccessOutOfBounds

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

OutOfBounds

Other bounds checking 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. This trap is resumable.

UnalignedAtomic

An atomic memory access was attempted with an unaligned pointer.

VMOutOfMemory

A trap indicating that the runtime was unable to allocate sufficient memory.

Implementations

impl TrapCode

pub fn message(&self) -> &str

Gets the message for this trap code

Trait Implementations

impl Clone for TrapCode

fn clone(&self) -> TrapCode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for TrapCode

impl Debug for TrapCode

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TrapCode

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Display for TrapCode

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

Formats the value using the given formatter.

impl Eq for TrapCode

impl Error for TrapCode

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

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

pub fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

pub fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

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.

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

Feeds a slice of this type into the given Hasher.

impl PartialEq<TrapCode> for TrapCode

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

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

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Serialize for TrapCode

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralEq for TrapCode

impl StructuralPartialEq for TrapCode