Enum holochain_wasmer_guest::WasmErrorInner

pub enum WasmErrorInner {
    PointerMap,
    Deserialize(Vec<u8, Global>),
    Serialize(SerializedBytesError),
    ErrorWhileError,
    Memory,
    Guest(String),
    Host(String),
    HostShortCircuit(Vec<u8, Global>),
    Compile(String),
    CallError(String),
    UninitializedSerializedModuleCache,
}

Enum of all possible ERROR states that wasm can encounter.

Used in [wasm_error!] for specifying the error type and message.

Variants

PointerMap

While moving pointers and lengths across the host/guest, we hit an unsafe conversion such as a negative pointer or out of bounds value.

Deserialize(Vec<u8, Global>)

These bytes failed to deserialize. The host should provide nice debug info and context that the wasm guest won’t have.

Serialize(SerializedBytesError)

Something failed to serialize. This should be rare or impossible for almost everything that implements Serialize.

ErrorWhileError

Somehow we errored while erroring. For example, maybe we failed to serialize an error while attempting to serialize an error.

Memory

Something went wrong while writing or reading bytes to/from wasm memory. Whatever this is, it is very bad and probably not recoverable.

Guest(String)

Error with guest logic that the host doesn’t know about.

Host(String)

Error with host logic that the guest doesn’t know about.

HostShortCircuit(Vec<u8, Global>)

Something to do with host logic that the guest doesn’t know about AND wasm execution MUST immediately halt. The Vec<u8> holds the encoded data as though the guest had returned.

Compile(String)

Wasmer failed to compile machine code from wasm byte code.

CallError(String)

The host failed to call a function in the guest.

UninitializedSerializedModuleCache

Host attempted to interact with the module cache before it was initialized.

Implementations

impl WasmErrorInner

pub fn maybe_corrupt(&self) -> bool

Some errors indicate the wasm guest is potentially corrupt and so the host MUST NOT reuse it (e.g. in a cache of wasm instances). Other errors MAY NOT invalidate an instance cache on the host.

Trait Implementations

impl Clone for WasmErrorInner

fn clone(&self) -> WasmErrorInner

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WasmErrorInner

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WasmErrorInner

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

Deserialize this value from the given Serde deserializer.

impl From<&str> for WasmErrorInner

fn from(s: &str) -> WasmErrorInner

Converts to this type from the input type.

impl From<SerializedBytesError> for WasmErrorInner

fn from(error: SerializedBytesError) -> WasmErrorInner

Converts to this type from the input type.

impl From<String> for WasmErrorInner

fn from(s: String) -> WasmErrorInner

Converts to this type from the input type.

impl From<TryFromIntError> for WasmErrorInner

fn from(_: TryFromIntError) -> WasmErrorInner

Converts to this type from the input type.

impl From<TryFromSliceError> for WasmErrorInner

fn from(_: TryFromSliceError) -> WasmErrorInner

Converts to this type from the input type.

impl Hash for WasmErrorInner

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 Ord for WasmErrorInner

fn cmp(&self, other: &WasmErrorInner) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<WasmErrorInner> for WasmErrorInner

fn eq(&self, other: &WasmErrorInner) -> 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 PartialOrd<WasmErrorInner> for WasmErrorInner

fn partial_cmp(&self, other: &WasmErrorInner) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for WasmErrorInner

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

Serialize this value into the given Serde serializer.

impl Eq for WasmErrorInner

impl StructuralEq for WasmErrorInner

impl StructuralPartialEq for WasmErrorInner