polars::prelude

Enum PolarsError

pub enum PolarsError {
Show 15 variants
    ColumnNotFound(ErrString),
    ComputeError(ErrString),
    Duplicate(ErrString),
    InvalidOperation(ErrString),
    IO {
        error: Arc<Error>,
        msg: Option<ErrString>,
    },
    NoData(ErrString),
    OutOfBounds(ErrString),
    SchemaFieldNotFound(ErrString),
    SchemaMismatch(ErrString),
    ShapeMismatch(ErrString),
    SQLInterface(ErrString),
    SQLSyntax(ErrString),
    StringCacheMismatch(ErrString),
    StructFieldNotFound(ErrString),
    Context {
        error: Box<PolarsError>,
        msg: ErrString,
    },
}

Variants§

ColumnNotFound(ErrString)

ComputeError(ErrString)

Duplicate(ErrString)

InvalidOperation(ErrString)

IO

Fields

§error: Arc<Error>

§msg: Option<ErrString>

NoData(ErrString)

OutOfBounds(ErrString)

SchemaFieldNotFound(ErrString)

SchemaMismatch(ErrString)

ShapeMismatch(ErrString)

SQLInterface(ErrString)

SQLSyntax(ErrString)

StringCacheMismatch(ErrString)

StructFieldNotFound(ErrString)

Context

Fields

§error: Box<PolarsError>

§msg: ErrString

Implementations§

impl PolarsError

pub fn context_trace(self) -> PolarsError

pub fn wrap_msg<F>(&self, func: F) -> PolarsError
where F: FnOnce(&str) -> String,

pub fn context(self, msg: ErrString) -> PolarsError

Trait Implementations§

impl Debug for PolarsError

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

Formats the value using the given formatter. Read more

impl Display for PolarsError

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

Formats the value using the given formatter. Read more

impl Error for PolarsError

1.30.0 · Source§

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more

1.0.0 · Source§

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

1.0.0 · Source§

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. Read more

impl From<Error> for PolarsError

fn from(value: Error) -> PolarsError

Converts to this type from the input type.

impl From<Error> for PolarsError

Available on crate feature regex only.

fn from(err: Error) -> PolarsError

Converts to this type from the input type.

impl From<Error> for PolarsError

Available on crate feature object_store only.

fn from(err: Error) -> PolarsError

Converts to this type from the input type.

impl From<Error> for PolarsError

Available on crate feature arrow-format only.

fn from(err: Error) -> PolarsError

Converts to this type from the input type.

impl From<ParquetError> for PolarsError

fn from(e: ParquetError) -> PolarsError

Converts to this type from the input type.

impl From<PolarsError> for ParquetError

fn from(e: PolarsError) -> ParquetError

Converts to this type from the input type.

impl From<TryReserveError> for PolarsError

fn from(value: TryReserveError) -> PolarsError

Converts to this type from the input type.

impl From<Utf8Error> for PolarsError

fn from(value: Utf8Error) -> PolarsError

Converts to this type from the input type.

Auto Trait Implementations§

impl Freeze for PolarsError

impl !RefUnwindSafe for PolarsError

impl Send for PolarsError

impl Sync for PolarsError

impl Unpin for PolarsError

impl !UnwindSafe for PolarsError

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> AsErrorSource for T
where T: Error + 'static,

fn as_error_source(&self) -> &(dyn Error + 'static)

For maximum effectiveness, this needs to be called as a method to benefit from Rust’s automatic dereferencing of method receivers.

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> ToCompactString for T
where T: Display,

fn try_to_compact_string(&self) -> Result<CompactString, ToCompactStringError>

Fallible version of [ToCompactString::to_compact_string()] Read more

fn to_compact_string(&self) -> CompactString

Converts the given value to a [CompactString]. Read more

impl<T> ToString for T
where T: Display + ?Sized,

default fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more

impl<T> ErasedDestructor for T
where T: 'static,

impl<T> MaybeSendSync for T