Enum RandomSlicesError 

pub enum RandomSlicesError {
    EmptyClaimants,
    DuplicateClaimant {
        name: String,
    },
    InvalidWeight {
        name: String,
        weight: f64,
    },
    OversizedSizeSum {
        sum: u128,
    },
    ZeroInterval {
        index: usize,
        name: String,
    },
}

Failure mode produced by the RandomSlices builders.

Variants

EmptyClaimants

Caller supplied an empty claimant list. The reference engine refuses to build an empty partition; we mirror that here.

DuplicateClaimant

Two claimants share the same name. Names must be unique so the reverse lookup (peer name -> slice) is total.

Fields

name: String

The offending duplicated name.

InvalidWeight

A weight is non-finite, negative, or so large the size translation cannot proceed. The error is also raised when every weight rounds to zero at the configured number of decimal digits.

Fields

name: String

The claimant whose weight failed validation.

weight: f64

The offending weight.

OversizedSizeSum

The summed u64 sizes overflow the ring. The C reference’s hash_partitions_create_with_sizes accepts only sums up to u64::MAX; anything beyond is a configuration error.

Fields

sum: u128

The summed sizes (as a u128 so the overflow is representable in the diagnostic).

ZeroInterval

Caller supplied a zero-sized interval. The reference engine permits zero-sized entries silently and the binary search then returns the next claimant; the Rust port rejects this configuration up front so no claimant can be silently masked.

Fields

index: usize

Position of the offending entry in the input list.

name: String

The claimant whose size was zero.

Trait Implementations

impl Debug for RandomSlicesError

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

Formats the value using the given formatter.

impl Display for RandomSlicesError

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

Formats the value using the given formatter.

impl Error for RandomSlicesError

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 PartialEq for RandomSlicesError

fn eq(&self, other: &RandomSlicesError) -> 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 StructuralPartialEq for RandomSlicesError