Enum zcash_client_backend::proposal::ProposalError

pub enum ProposalError {
    RequestTotalInvalid,
    Overflow,
    BalanceError {
        input_total: NonNegativeAmount,
        output_total: NonNegativeAmount,
    },
    ShieldingInvalid,
    ReferenceError(StepOutput),
    StepDoubleSpend(StepOutput),
    ChainDoubleSpend(PoolType, TxId, u32),
    PaymentPoolsMismatch,
}

Errors that can occur in construction of a Step.

Variants

RequestTotalInvalid

The total output value of the transaction request is not a valid Zcash amount.

Overflow

The total of transaction inputs overflows the valid range of Zcash values.

BalanceError

Fields

input_total: NonNegativeAmount

output_total: NonNegativeAmount

The input total and output total of the payment request are not equal to one another. The sum of transaction outputs, change, and fees is required to be exactly equal to the value of provided inputs.

ShieldingInvalid

The is_shielding flag may only be set to true under the following conditions:

• The total of transparent inputs is nonzero
• There exist no Sapling inputs
• There provided transaction request is empty; i.e. the only output values specified are change and fee amounts.

ReferenceError(StepOutput)

A reference to the output of a prior step is invalid.

StepDoubleSpend(StepOutput)

An attempted double-spend of a prior step output was detected.

ChainDoubleSpend(PoolType, TxId, u32)

An attempted double-spend of an output belonging to the wallet was detected.

PaymentPoolsMismatch

There was a mismatch between the payments in the proposal’s transaction request and the payment pool selection values.

Trait Implementations

impl Clone for ProposalError

fn clone(&self) -> ProposalError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ProposalError

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

Formats the value using the given formatter.

impl Display for ProposalError

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

Formats the value using the given formatter.

impl Error for ProposalError

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

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.