Enum StudyError 

#[non_exhaustive]
pub enum StudyError {
    UnknownStudy(String),
    UnknownStudyId(usize),
    UnknownInput(String),
    InvalidInput {
        id: String,
        reason: String,
    },
    EmptyInputId {
        index: usize,
    },
    NotConfigured,
    InvalidPrecision(usize),
    InvalidPlotWidth {
        plot: usize,
        width: f32,
    },
    InvalidLevelValue {
        level: usize,
        value: f64,
    },
    PlotCount {
        expected: usize,
        found: usize,
    },
    UnknownSourceStudy(usize),
    UnknownSourcePlot {
        id: usize,
        plot: usize,
    },
    CyclicSource,
    StudyLimitReached(RefusedStudy),
    NotClipboard,
    Clipboard(Error),
}

Why a study was not built, edited, given a source or added.

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.

UnknownStudy(String)

The factory knows no study of this name.

UnknownStudyId(usize)

No study on the chart has this id.

UnknownInput(String)

The study has no input with this id.

InvalidInput

The study refused the value of an input.

Fields

id: String

The id of the input.

reason: String

Why, completing the sentence “study input id …”.

EmptyInputId

A declared input has an empty id.

Fields

index: usize

The position of the input in the declared list, counted from 0.

NotConfigured

The study edits its presentation only inside a ConfiguredStudy.

InvalidPrecision(usize)

The precision is above 12 decimals.

InvalidPlotWidth

A plot width is not finite or not between 0.5 and 10.

Fields

plot: usize

The plot, counted from 0.

width: f32

The refused width.

InvalidLevelValue

A horizontal level value is NaN or infinite.

Fields

level: usize

The level, counted from 0.

value: f64

The refused value.

PlotCount

The settings hold another number of plot styles than the study draws.

Fields

expected: usize

The plots the study draws.

found: usize

The plot styles given.

UnknownSourceStudy(usize)

The source names a study the chart does not have.

UnknownSourcePlot

The source names a plot its study does not draw.

Fields

id: usize

The id of the source study.

plot: usize

The plot, counted from 0.

CyclicSource

The study would read its own output, directly or through other studies.

StudyLimitReached(RefusedStudy)

The chart holds as many studies as its study cap allows. The refused study comes back unchanged.

NotClipboard

The text is not study clipboard text.

Clipboard(Error)

The copied study cannot be read.

Trait Implementations

impl Debug for StudyError

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

Formats the value using the given formatter.

impl Display for StudyError

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

Formats the value using the given formatter.

impl Error for StudyError

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.