Enum cosmwasm_std::SystemResult

pub enum SystemResult<S> {
    Ok(S),
    Err(SystemError),
}

This is the outer result type returned by a querier to the contract.

We use a custom type here instead of Rust's Result because we want to be able to define the serialization, which is a public interface. Every language that compiles to Wasm and runs in the ComsWasm VM needs to create the same JSON representation.

Examples

Success:

let data = Binary::from(b"hello, world");
let result = SystemResult::Ok(ContractResult::Ok(data));
assert_eq!(to_vec(&result).unwrap(), br#"{"ok":{"ok":"aGVsbG8sIHdvcmxk"}}"#.to_vec());

Failure:

let error = SystemError::Unknown {};
let result: SystemResult<Binary> = SystemResult::Err(error);
assert_eq!(to_vec(&result).unwrap(), br#"{"error":{"unknown":{}}}"#.to_vec());

Variants

Ok(S)

Err(SystemError)

Implementations

impl<S> SystemResult<S>

pub fn into_result(self) -> Result<S, SystemError>

Converts a ContractResult<S> to a Result<S, SystemError> as a convenient way to access the full Result API.

pub fn unwrap(self) -> S

impl<S: Debug> SystemResult<S>

pub fn unwrap_err(self) -> SystemError

Trait Implementations

impl<S: Clone> Clone for SystemResult<S>

pub fn clone(&self) -> SystemResult<S>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<S: Debug> Debug for SystemResult<S>

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

Formats the value using the given formatter.

impl<'de, S> Deserialize<'de> for SystemResult<S> where
    S: Deserialize<'de>, 

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

Deserialize this value from the given Serde deserializer.

impl<S> From<Result<S, SystemError>> for SystemResult<S>

pub fn from(original: Result<S, SystemError>) -> SystemResult<S>

Performs the conversion.

impl<S: JsonSchema> JsonSchema for SystemResult<S>

pub fn schema_name() -> String

The name of the generated JSON Schema.

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

Generates a JSON Schema for this type.

pub fn is_referenceable() -> bool

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

impl<S: PartialEq> PartialEq<SystemResult<S>> for SystemResult<S>

pub fn eq(&self, other: &SystemResult<S>) -> bool

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

pub fn ne(&self, other: &SystemResult<S>) -> bool

This method tests for !=.

impl<S> Serialize for SystemResult<S> where
    S: Serialize, 

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

Serialize this value into the given Serde serializer.

impl<S> StructuralPartialEq for SystemResult<S>