Struct HumanizedExpr

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pub struct HumanizedExpr<'a, T, M = HumanizedExplain> {
    pub expr: &'a T,
    pub cols: Option<&'a Vec<String>>,
    pub mode: M,
}
Expand description

A helper struct for wrapping expressions whose text output is modulated by the presence of some local (inferred schema) or global (required redaction) context.

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§expr: &'a T

The expression to be humanized.

§cols: Option<&'a Vec<String>>

An optional vector of inferred column names to be used when rendering column references in expr.

§mode: M

The rendering mode to use. See HumanizerMode for details.

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impl<'a, M: HumanizerMode> HumanizedExpr<'a, MapFilterProject, M>

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pub fn fmt_default_text<T>( &self, f: &mut Formatter<'_>, ctx: &mut PlanRenderingContext<'_, T>, ) -> Result

Render an MFP using the the default (concise) syntax.

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impl<'a, T, M: HumanizerMode> HumanizedExpr<'a, T, M>

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pub fn child<U>(&self, expr: &'a U) -> HumanizedExpr<'a, U, M>

Wrap the given child expr into a HumanizedExpr using the same cols and mode as self.

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impl<'a, T: Clone, M: Clone> Clone for HumanizedExpr<'a, T, M>

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fn clone(&self) -> HumanizedExpr<'a, T, M>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a, T: Debug, M: Debug> Debug for HumanizedExpr<'a, T, M>

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

Formats the value using the given formatter. Read more
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impl<'a, M> Display for HumanizedExpr<'a, (&usize, &Arc<str>), M>
where M: HumanizerMode,

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

Formats the value using the given formatter. Read more
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impl<'a, M> Display for HumanizedExpr<'a, AggregateExpr, M>
where M: HumanizerMode,

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

Formats the value using the given formatter. Read more
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impl<'a, M> Display for HumanizedExpr<'a, AggregateFunc, M>
where M: HumanizerMode,

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

Formats the value using the given formatter. Read more
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impl<'a, M> Display for HumanizedExpr<'a, ColumnOrder, M>
where M: HumanizerMode,

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

Formats the value using the given formatter. Read more
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impl<'a, M> Display for HumanizedExpr<'a, Datum<'a>, M>
where M: HumanizerMode,

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

Formats the value using the given formatter. Read more
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impl<'a, M> Display for HumanizedExpr<'a, MirScalarExpr, M>
where M: HumanizerMode,

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

Formats the value using the given formatter. Read more
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impl<'a, M> Display for HumanizedExpr<'a, Result<Row, EvalError>, M>
where M: HumanizerMode,

Render a literal value represented as a single-element Row or an EvalError.

The default implementation calls HumanizerMode::humanize_datum for the former and handles the error case (including redaction) directly for the latter.

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

Formats the value using the given formatter. Read more
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impl<'a, M> Display for HumanizedExpr<'a, Row, M>
where M: HumanizerMode,

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

Formats the value using the given formatter. Read more
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impl<'a, M> Display for HumanizedExpr<'a, usize, M>
where M: HumanizerMode,

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

Formats the value using the given formatter. Read more
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impl<'a, 'h, C, M> DisplayText<C> for HumanizedExpr<'a, ExplainSource<'a>, M>
where C: AsMut<Indent> + AsRef<&'h dyn ExprHumanizer>, M: HumanizerMode,

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

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impl<'a, C, M> DisplayText<C> for HumanizedExpr<'a, MapFilterProject, M>
where C: AsMut<Indent>, M: HumanizerMode,

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

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impl<'a, C, M> DisplayText<C> for HumanizedExpr<'a, PushdownInfo<'a>, M>
where C: AsMut<Indent>, M: HumanizerMode,

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

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impl<'a, C, M> DisplayText<C> for HumanizedExpr<'a, RowSetFinishing, M>
where C: AsMut<Indent>, M: HumanizerMode,

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

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impl<'a, M> ScalarOps for HumanizedExpr<'a, MirScalarExpr, M>

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fn match_col_ref(&self) -> Option<usize>

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fn references(&self, col_ref: usize) -> bool

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impl<'a, M> ScalarOps for HumanizedExpr<'a, usize, M>

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fn match_col_ref(&self) -> Option<usize>

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fn references(&self, col_ref: usize) -> bool

Auto Trait Implementations§

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impl<'a, T, M> Freeze for HumanizedExpr<'a, T, M>
where M: Freeze,

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impl<'a, T, M> RefUnwindSafe for HumanizedExpr<'a, T, M>

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impl<'a, T, M> Send for HumanizedExpr<'a, T, M>
where M: Send, T: Sync,

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impl<'a, T, M> Sync for HumanizedExpr<'a, T, M>
where M: Sync, T: Sync,

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impl<'a, T, M> Unpin for HumanizedExpr<'a, T, M>
where M: Unpin,

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impl<'a, T, M> UnwindSafe for HumanizedExpr<'a, T, M>

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Gets the TypeId of self. Read more
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