Enum PolarsViewError 

pub enum PolarsViewError {
    ChannelReceive(String),
    CsvParsing(String),
    FileNotFound(PathBuf),
    FileType(String),
    Io(Error),
    InvalidArgument {
        arg_name: String,
        reason: String,
    },
    InvalidDataTypeForRegex {
        pattern: String,
        columns: Vec<String>,
    },
    InvalidDelimiter(String),
    InvalidRegexPattern(String),
    InvalidRegexSyntax {
        pattern: String,
        error: String,
    },
    Polars(PolarsError),
    TokioJoin(JoinError),
    UnsupportedFileType(String),
    Other(String),
}

Custom error type for Polars View.

This enum defines all the possible errors that can occur in the application.

We use the thiserror crate to derive the Error trait and automatically implement Display using the #[error(...)] attribute.

Variants

ChannelReceive(String)

CsvParsing(String)

FileNotFound(PathBuf)

FileType(String)

Io(Error)

InvalidArgument

Fields

arg_name: String

reason: String

InvalidDataTypeForRegex

Indicates that the regex pattern matched columns that are not DataType::String, which is required for normalization.

Fields

pattern: String

columns: Vec<String>

List of problematic columns (name and type)

InvalidDelimiter(String)

InvalidRegexPattern(String)

Indicates that a regex pattern provided for column selection does not meet the required format (* or ^...$).

InvalidRegexSyntax

Indicates that the provided regex pattern has invalid syntax.

Fields

pattern: String

error: String

Polars(PolarsError)

TokioJoin(JoinError)

UnsupportedFileType(String)

Other(String)

Trait Implementations

impl Debug for PolarsViewError

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

Formats the value using the given formatter.

impl Display for PolarsViewError

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

Formats the value using the given formatter.

impl Error for PolarsViewError

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 PolarsViewError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<JoinError> for PolarsViewError

fn from(source: JoinError) -> Self

Converts to this type from the input type.

impl From<PolarsError> for PolarsViewError

fn from(source: PolarsError) -> Self

Converts to this type from the input type.

impl From<String> for PolarsViewError

fn from(err: String) -> PolarsViewError

Converts to this type from the input type.