polars_core::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,
    },

}

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ColumnNotFound(ErrString)

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ComputeError(ErrString)

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Duplicate(ErrString)

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InvalidOperation(ErrString)

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IO

Fields

§error: Arc<Error>
§msg: Option<ErrString>
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NoData(ErrString)

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OutOfBounds(ErrString)

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SchemaFieldNotFound(ErrString)

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SchemaMismatch(ErrString)

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ShapeMismatch(ErrString)

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SQLInterface(ErrString)

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SQLSyntax(ErrString)

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StringCacheMismatch(ErrString)

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StructFieldNotFound(ErrString)

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Context

Fields

§error: Box<PolarsError>
§msg: ErrString

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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§

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impl Debug for PolarsError

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

Formats the value using the given formatter. Read more
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impl Display for PolarsError

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

Formats the value using the given formatter. Read more
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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()
Read more
1.0.0 · Source§

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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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
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impl From<Error> for PolarsError

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fn from(value: Error) -> PolarsError

Converts to this type from the input type.
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impl From<Error> for PolarsError

Available on crate feature regex only.
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fn from(err: Error) -> PolarsError

Converts to this type from the input type.
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impl From<TryReserveError> for PolarsError

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fn from(value: TryReserveError) -> PolarsError

Converts to this type from the input type.
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impl From<Utf8Error> for PolarsError

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fn from(value: Utf8Error) -> PolarsError

Converts to this type from the input type.

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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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
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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
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToCompactString for T
where T: Display,

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

Fallible version of [ToCompactString::to_compact_string()] Read more
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fn to_compact_string(&self) -> CompactString

Converts the given value to a [CompactString]. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V