Enum SaveError 

pub enum SaveError {
    NonFinite {
        id: String,
        field: String,
    },
    DuplicateId {
        id: String,
    },
    Cursor {
        id: String,
    },
    MissingAnchors {
        id: String,
        tool: DrawingToolType,
        anchors: usize,
        needed: usize,
    },
    UnmappedAnchor {
        id: String,
        point: usize,
    },
    Json(Error),
}

Why DrawingStorage::to_json did not save.

Variants

NonFinite

A drawing holds NaN or an infinity, which JSON cannot store, or a size or pitchfork level out of the range drawings are drawn at, and loading skips it.

Fields

id: String

The id of the drawing.

field: String

The field, such as "stroke_width" or "points[1].price".

DuplicateId

Two drawings have the same id, and loading keeps only the first.

Fields

id: String

The id of the drawing.

Cursor

A drawing’s tool is a cursor, such as the eraser, and loading skips it.

Fields

id: String

The id of the drawing.

MissingAnchors

A drawing has fewer anchors than its tool draws with, and loading skips it.

Fields

id: String

The id of the drawing.

tool: DrawingToolType

The tool of the drawing.

anchors: usize

The anchors the drawing has.

needed: usize

The anchors the tool needs.

UnmappedAnchor

An anchor has no time mapping or its timestamp is outside the supported range.

Fields

id: String

Drawing id.

point: usize

Anchor index within the drawing.

Json(Error)

Serialization failed.

Trait Implementations

impl Debug for SaveError

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

Formats the value using the given formatter.

impl Display for SaveError

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

Formats the value using the given formatter.

impl Error for SaveError

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.