Enum lucet_runtime::Error

pub enum Error {
    InvalidArgument(&'static str),
    RegionFull(usize),
    ModuleError(ModuleError),
    LimitsExceeded(String),
    NoLinearMemory(String),
    SymbolNotFound(String),
    FuncNotFound(u32, u32),
    RuntimeFault(FaultDetails),
    RuntimeTerminated(TerminationDetails),
    DlError(Error),
    InstanceNotReturned,
    InstanceNotYielded,
    StartYielded,
    InternalError(Error),
    Unsupported(String),
}

Lucet runtime errors.

Variants

InvalidArgument(&'static str)

RegionFull(usize)

A Region cannot currently accommodate additional instances.

ModuleError(ModuleError)

A module error occurred.

LimitsExceeded(String)

A method call or module specification would exceed an instance's Limits.

NoLinearMemory(String)

A method call attempted to modify linear memory for an instance that does not have linear memory

SymbolNotFound(String)

An attempt to look up a WebAssembly function by its symbol name failed.

FuncNotFound(u32, u32)

An attempt to look up a WebAssembly function by its table index failed.

RuntimeFault(FaultDetails)

An instance aborted due to a runtime fault.

RuntimeTerminated(TerminationDetails)

An instance terminated, potentially with extra information about the termination.

This condition can arise from a hostcall explicitly calling Vmctx::terminate(), or via a custom signal handler that returns SignalBehavior::Terminate.

DlError(Error)

IO errors arising during dynamic loading with DlModule.

InstanceNotReturned

InstanceNotYielded

StartYielded

InternalError(Error)

A catch-all for internal errors that are likely unrecoverable by the runtime user.

As the API matures, these will likely become rarer, replaced by new variants of this enum, or by panics for truly unrecoverable situations.

Unsupported(String)

An unsupported feature was used.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, __formatter: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for Error

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

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

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

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

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

fn description(&self) -> &str

Deprecated since 1.41.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

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

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for Error

fn from(e: Error) -> Error

Performs the conversion.

impl From<Error> for Error

fn from(source: Error) -> Error

Performs the conversion.

impl From<Error> for Error

fn from(e: Error) -> Error

Performs the conversion.

impl From<Error> for Error

fn from(e: Error) -> Error

Performs the conversion.

impl From<IntoStringError> for Error

fn from(e: IntoStringError) -> Error

Performs the conversion.