Enum cosmwasm_std::SystemError

#[non_exhaustive]pub enum SystemError {
    InvalidRequest {
        error: String,
        request: Binary,
    },
    InvalidResponse {
        error: String,
        response: Binary,
    },
    NoSuchContract {
        addr: HumanAddr,
    },
    Unknown {},
    UnsupportedRequest {
        kind: String,
    },
}

SystemError is used for errors inside the VM and is API friendly (i.e. serializable).

This is used on return values for Querier as a nested result: Result<StdResult, SystemError> The first wrap (SystemError) will trigger if the contract address doesn't exist, the QueryRequest is malformated, etc. The second wrap will be an error message from the contract itself.

Such errors are only created by the VM. The error type is defined in the standard library, to ensure the contract understands the error format without creating a dependency on cosmwasm-vm.

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.

InvalidRequest

Fields of InvalidRequest

error: Stringrequest: Binary

InvalidResponse

Fields of InvalidResponse

error: Stringresponse: Binary

NoSuchContract

Fields of NoSuchContract

addr: HumanAddr

Unknown

Fields of Unknown

UnsupportedRequest

Fields of UnsupportedRequest

kind: String

Trait Implementations

impl Clone for SystemError

fn clone(&self) -> SystemError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SystemError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SystemError

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

Deserialize this value from the given Serde deserializer.

impl Display for SystemError

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

Formats the value using the given formatter.

impl Error for SystemError

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 1.42.0:

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 JsonSchema for SystemError

fn schema_name() -> String

The name of the generated JSON Schema.

fn json_schema(gen: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn is_referenceable() -> bool

Whether JSON Schemas generated for this type should be re-used where possible using the $ref keyword.

impl PartialEq<SystemError> for SystemError

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

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

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

This method tests for !=.

impl Serialize for SystemError

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SystemError