Enum DaoError

pub enum DaoError {
    InvalidHeader,
    InvalidOutPoint,
    InvalidDaoFormat,
    Overflow,
    ZeroC,
}

Errors due to the fact that the NervosDAO rules are not respected.

Variants

InvalidHeader

This error occurs during calculating the dao field for a block, which broadly indicates that it cannot find a required block.

InvalidOutPoint

When withdraws from NervosDAO, it requires the deposited header and withdrawing header to help calculating interest. This error occurs at withdrawing phase 2 for the below cases:

• The HeaderDeps does not include the withdrawing block hash. The withdrawing block hash indicates the block which packages the target transaction at withdrawing phase 1.
• The HeaderDeps does not include the deposited block hash. The deposited block hash indicates the block which packages the target transaction at deposit phase. Please see withdrawing phase 2 for more details.

InvalidDaoFormat

When withdraws from NervosDAO, the deposited header should be specified via witness. This error indicates the corresponding witness is unexpected. See the code for more detail.

See also:

• 0023-dao-deposit-withdraw

Overflow

Calculation overflow

ZeroC

ZeroC

Trait Implementations

impl Clone for DaoError

fn clone(&self) -> DaoError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DaoError

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

Formats the value using the given formatter.

impl Display for DaoError

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

Formats the value using the given formatter.

impl Error for DaoError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for DaoError

fn from(error: CapacityError) -> Self

Converts to this type from the input type.

impl From<DaoError> for Error

fn from(error: DaoError) -> Self

Converts to this type from the input type.

impl PartialEq for DaoError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for DaoError

impl StructuralPartialEq for DaoError