pub struct Pack;Expand description
Pack zero or more expressions into a structure with named fields.
Trait Implementations§
Source§impl VTable for Pack
impl VTable for Pack
Source§type Options = PackOptions
type Options = PackOptions
Options for this expression.
Source§fn serialize(
&self,
instance: &<Pack as VTable>::Options,
) -> Result<Option<Vec<u8>>, VortexError>
fn serialize( &self, instance: &<Pack as VTable>::Options, ) -> Result<Option<Vec<u8>>, VortexError>
Serialize the options for this expression. Read more
Source§fn deserialize(
&self,
metadata: &[u8],
) -> Result<<Pack as VTable>::Options, VortexError>
fn deserialize( &self, metadata: &[u8], ) -> Result<<Pack as VTable>::Options, VortexError>
Deserialize the options of this expression.
Source§fn arity(&self, options: &<Pack as VTable>::Options) -> Arity
fn arity(&self, options: &<Pack as VTable>::Options) -> Arity
Returns the arity of this expression.
Source§fn child_name(
&self,
instance: &<Pack as VTable>::Options,
child_idx: usize,
) -> ArcRef<str>
fn child_name( &self, instance: &<Pack as VTable>::Options, child_idx: usize, ) -> ArcRef<str>
Returns the name of the nth child of the expr.
Source§fn fmt_sql(
&self,
options: &<Pack as VTable>::Options,
expr: &Expression,
f: &mut Formatter<'_>,
) -> Result<(), Error>
fn fmt_sql( &self, options: &<Pack as VTable>::Options, expr: &Expression, f: &mut Formatter<'_>, ) -> Result<(), Error>
Format this expression in nice human-readable SQL-style format Read more
Source§fn return_dtype(
&self,
options: &<Pack as VTable>::Options,
arg_dtypes: &[DType],
) -> Result<DType, VortexError>
fn return_dtype( &self, options: &<Pack as VTable>::Options, arg_dtypes: &[DType], ) -> Result<DType, VortexError>
Compute the return
DType of the expression if evaluated over the given input types.Source§fn evaluate(
&self,
options: &<Pack as VTable>::Options,
expr: &Expression,
scope: &Arc<dyn Array>,
) -> Result<Arc<dyn Array>, VortexError>
fn evaluate( &self, options: &<Pack as VTable>::Options, expr: &Expression, scope: &Arc<dyn Array>, ) -> Result<Arc<dyn Array>, VortexError>
Evaluate the expression in the given scope. Read more
Source§fn execute(
&self,
_options: &<Pack as VTable>::Options,
args: ExecutionArgs,
) -> Result<Datum, VortexError>
fn execute( &self, _options: &<Pack as VTable>::Options, args: ExecutionArgs, ) -> Result<Datum, VortexError>
Execute the expression on the given vector with the given dtype. Read more
Source§fn is_null_sensitive(&self, _instance: &<Pack as VTable>::Options) -> bool
fn is_null_sensitive(&self, _instance: &<Pack as VTable>::Options) -> bool
Returns whether this expression itself is null-sensitive. Conservatively default to true. Read more
Source§fn is_fallible(&self, _instance: &<Pack as VTable>::Options) -> bool
fn is_fallible(&self, _instance: &<Pack as VTable>::Options) -> bool
Returns whether this expression itself is fallible. Conservatively default to true. Read more
Source§fn reduce(
&self,
options: &Self::Options,
node: &dyn ReduceNode,
ctx: &dyn ReduceCtx,
) -> Result<Option<Arc<dyn ReduceNode>>, VortexError>
fn reduce( &self, options: &Self::Options, node: &dyn ReduceNode, ctx: &dyn ReduceCtx, ) -> Result<Option<Arc<dyn ReduceNode>>, VortexError>
Implement an abstract reduction rule over a tree of scalar functions. Read more
Source§fn simplify(
&self,
options: &Self::Options,
expr: &Expression,
ctx: &dyn SimplifyCtx,
) -> Result<Option<Expression>, VortexError>
fn simplify( &self, options: &Self::Options, expr: &Expression, ctx: &dyn SimplifyCtx, ) -> Result<Option<Expression>, VortexError>
Simplify the expression if possible.
Source§fn simplify_untyped(
&self,
options: &Self::Options,
expr: &Expression,
) -> Result<Option<Expression>, VortexError>
fn simplify_untyped( &self, options: &Self::Options, expr: &Expression, ) -> Result<Option<Expression>, VortexError>
Simplify the expression if possible, without type information.
Source§fn stat_falsification(
&self,
options: &Self::Options,
expr: &Expression,
catalog: &dyn StatsCatalog,
) -> Option<Expression>
fn stat_falsification( &self, options: &Self::Options, expr: &Expression, catalog: &dyn StatsCatalog, ) -> Option<Expression>
Source§fn stat_expression(
&self,
options: &Self::Options,
expr: &Expression,
stat: Stat,
catalog: &dyn StatsCatalog,
) -> Option<Expression>
fn stat_expression( &self, options: &Self::Options, expr: &Expression, stat: Stat, catalog: &dyn StatsCatalog, ) -> Option<Expression>
Auto Trait Implementations§
impl Freeze for Pack
impl RefUnwindSafe for Pack
impl Send for Pack
impl Sync for Pack
impl Unpin for Pack
impl UnwindSafe for Pack
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> FmtForward for T
impl<T> FmtForward for T
Source§fn fmt_binary(self) -> FmtBinary<Self>where
Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self>where
Self: Binary,
Causes
self to use its Binary implementation when Debug-formatted.Source§fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
Causes
self to use its Display implementation when
Debug-formatted.Source§fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
Causes
self to use its LowerExp implementation when
Debug-formatted.Source§fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
Causes
self to use its LowerHex implementation when
Debug-formatted.Source§fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
Causes
self to use its Octal implementation when Debug-formatted.Source§fn fmt_pointer(self) -> FmtPointer<Self>where
Self: Pointer,
fn fmt_pointer(self) -> FmtPointer<Self>where
Self: Pointer,
Causes
self to use its Pointer implementation when
Debug-formatted.Source§fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
Causes
self to use its UpperExp implementation when
Debug-formatted.Source§fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
Causes
self to use its UpperHex implementation when
Debug-formatted.Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
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 moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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 moreSource§impl<T> Pipe for Twhere
T: ?Sized,
impl<T> Pipe for Twhere
T: ?Sized,
Source§fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere
Self: Sized,
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere
Self: Sized,
Pipes by value. This is generally the method you want to use. Read more
Source§fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere
R: 'a,
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere
R: 'a,
Borrows
self and passes that borrow into the pipe function. Read moreSource§fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere
R: 'a,
fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere
R: 'a,
Mutably borrows
self and passes that borrow into the pipe function. Read moreSource§fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
Source§fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R,
) -> R
fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
Source§fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
Borrows
self, then passes self.as_ref() into the pipe function.Source§fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
Mutably borrows
self, then passes self.as_mut() into the pipe
function.Source§fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
Borrows
self, then passes self.deref() into the pipe function.Source§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<V> ScalarFnArrayExt for Vwhere
V: VTable,
impl<V> ScalarFnArrayExt for Vwhere
V: VTable,
Source§impl<T> Tap for T
impl<T> Tap for T
Source§fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
Immutable access to the
Borrow<B> of a value. Read moreSource§fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
Mutable access to the
BorrowMut<B> of a value. Read moreSource§fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
Immutable access to the
AsRef<R> view of a value. Read moreSource§fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
Mutable access to the
AsMut<R> view of a value. Read moreSource§fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
Immutable access to the
Deref::Target of a value. Read moreSource§fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
Mutable access to the
Deref::Target of a value. Read moreSource§fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
Calls
.tap() only in debug builds, and is erased in release builds.Source§fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
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builds.Source§fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
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builds.Source§fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
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builds.Source§fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
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builds.Source§fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
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.tap_deref() only in debug builds, and is erased in release
builds.Source§impl<V> VTableExt for Vwhere
V: VTable,
impl<V> VTableExt for Vwhere
V: VTable,
Source§fn bind(&'static self, options: Self::Options) -> ScalarFn
fn bind(&'static self, options: Self::Options) -> ScalarFn
Bind this vtable with the given options into a
ScalarFn.Source§fn new_expr(
&'static self,
options: Self::Options,
children: impl Into<Arc<[Expression]>>,
) -> Expression
fn new_expr( &'static self, options: Self::Options, children: impl Into<Arc<[Expression]>>, ) -> Expression
Create a new expression with this vtable and the given options and children.
Source§fn try_new_expr(
&'static self,
options: Self::Options,
children: impl Into<Arc<[Expression]>>,
) -> Result<Expression, VortexError>
fn try_new_expr( &'static self, options: Self::Options, children: impl Into<Arc<[Expression]>>, ) -> Result<Expression, VortexError>
Try to create a new expression with this vtable and the given options and children.