Enum WriteResult

pub enum WriteResult<State, Error> {
    Success(State),
    ContractError(Error),
    RuntimeError(String),
}

Return type for ‘write’ contract method

User is responsible for providing State and Error types. To use them with #[warp_contract(write)] macro State have to implement:

• Clone - to allow safe passing of a clone of state to contract method and disallow partial state changes in case an error is returned
• Serialize, Deserialize - to pass it both ways between js and rust and Error have to implement Serialize.

Both types have to implement Debug to allow generic error message creation.

Variants

Success(State)

returned on success - State contains the updated contract state

ContractError(Error)

returned when a ‘business’ error occurred, The user-defined Error parameter is returned to the caller.

RuntimeError(String)

returned when an unexpected error occurred, The String parameter is for debugging purposes

Trait Implementations

impl<State: Debug, Error: Debug> Debug for WriteResult<State, Error>

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

Formats the value using the given formatter.