Enum FetchError 

#[non_exhaustive]
pub enum FetchError {
    Count {
        message: String,
    },
    Rows {
        rows: Range<u64>,
        message: String,
    },
    Short {
        rows: Range<u64>,
        got: u64,
    },
    Stopped {
        message: String,
    },
}

Why a PagedModel has rows it cannot show: what PagedModel::error gives.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Count

The source failed to count the rows (message says why): no rows are shown until retry or refresh counts them.

Fields

message: String

The source’s error, or what its panic said.

Rows

The source failed to give rows (message says why): they stay empty until retry or refresh.

Fields

rows: Range<u64>

The rows asked for, those of one page.

message: String

The source’s error, or what its panic said.

Short

The source gave only got of rows, which its count says are there: the data changed since it was counted. They stay empty until refresh counts again.

Fields

rows: Range<u64>

The rows asked for, those of one page.

got: u64

How many came.

Stopped

The thread fetching pages stopped (message says why: the model’s wake panicked): nothing more arrives, so make the model again.

Fields

message: String

What stopped it.

Trait Implementations

impl Clone for FetchError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FetchError

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

Formats the value using the given formatter.

impl Display for FetchError

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

Formats the value using the given formatter.

impl Eq for FetchError

impl Error for FetchError

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 FetchError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FetchError