Enum VolasError 

pub enum VolasError {
    ColumnNotFound(String),
    DType(String),
    Shape(String),
    Index(String),
    Value(String),
    Parse(String),
}

Errors raised by the volas core. The Python binding maps each variant to a typed exception (see volas-python).

Variants

ColumnNotFound(String)

A column name was not found in the frame.

DType(String)

A dtype-incompatible operation (e.g. appending Bool onto F64).

Shape(String)

Mismatched lengths / shapes (e.g. columns of unequal height).

Index(String)

Out-of-range or otherwise invalid index access.

Value(String)

A bad argument value.

Parse(String)

A directive string that could not be tokenized / parsed (a syntax error, annotated with line / column), as opposed to a Value error for a well-formed directive with an invalid command / argument.

Trait Implementations

impl Clone for VolasError

fn clone(&self) -> VolasError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VolasError

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

Formats the value using the given formatter.

impl Display for VolasError

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

Formats the value using the given formatter.

impl Error for VolasError

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 VolasError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for VolasError