Enum DataFrameError 

#[non_exhaustive]
pub enum DataFrameError {
    ColumnNotFound(String),
    LengthMismatch {
        expected: usize,
        actual: usize,
    },
    TypeMismatch {
        column: String,
        expected: DataType,
        actual: DataType,
    },
    Empty,
    Io(Error),
    Json(Error),
    IndexOutOfBounds {
        index: usize,
        length: usize,
    },
    JoinKeyMismatch {
        left_count: usize,
        right_count: usize,
    },
    Other(String),
}

All errors produced by nexcore-dataframe operations.

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.

ColumnNotFound(String)

Named column was not found in the DataFrame.

LengthMismatch

Column lengths don’t match during DataFrame construction.

Fields

expected: usize

actual: usize

TypeMismatch

Column has wrong type for the requested operation.

Fields

column: String

expected: DataType

actual: DataType

Empty

Operation requires a non-empty DataFrame.

Io(Error)

I/O error during read/write.

Json(Error)

JSON serialization/deserialization error.

IndexOutOfBounds

Index out of bounds.

Fields

index: usize

length: usize

JoinKeyMismatch

Join key column count mismatch between left and right tables.

Fields

left_count: usize

right_count: usize

Other(String)

General error with message.

Trait Implementations

impl Debug for DataFrameError

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

Formats the value using the given formatter.

impl Display for DataFrameError

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

Formats the value using the given formatter.

impl Error for DataFrameError

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 From<Error> for DataFrameError

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<Error> for DataFrameError

fn from(e: Error) -> Self

Converts to this type from the input type.