Enum cosmwasm_vm::CommunicationError

#[non_exhaustive]pub enum CommunicationError {
    DerefErr {
        offset: u32,
        msg: String,
    },
    InvalidOrder {
        value: i32,
    },
    InvalidRegion {
        source: RegionValidationError,
    },
    InvalidUtf8 {
        msg: String,
    },
    RegionLengthTooBig {
        length: usize,
        max_length: usize,
    },
    RegionTooSmall {
        size: usize,
        required: usize,
    },
    ZeroAddress {},
}

An error in the communcation between contract and host. Those happen around imports and exports.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

DerefErr

Fields of DerefErr

offset: u32

the position in a Wasm linear memory

msg: String

InvalidOrder

Fields of InvalidOrder

value: i32

InvalidRegion

Fields of InvalidRegion

source: RegionValidationError

InvalidUtf8

Whenever UTF-8 bytes cannot be decoded into a unicode string, e.g. in String::from_utf8 or str::from_utf8.

Fields of InvalidUtf8

msg: String

RegionLengthTooBig

Fields of RegionLengthTooBig

length: usizemax_length: usize

RegionTooSmall

Fields of RegionTooSmall

size: usizerequired: usize

ZeroAddress

Fields of ZeroAddress

Trait Implementations

impl Debug for CommunicationError

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

Formats the value using the given formatter.

impl Display for CommunicationError

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

Formats the value using the given formatter.

impl Error for CommunicationError

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 From<CommunicationError> for VmError

pub fn from(source: CommunicationError) -> Self

Performs the conversion.

impl From<RegionValidationError> for CommunicationError

pub fn from(source: RegionValidationError) -> Self

Performs the conversion.