Struct Subscript 

pub struct Subscript {
    pub container: Expr,
    pub upper: Vec<Option<Expr>>,
    pub lower: Option<Vec<Option<Expr>>>,
    pub assign: Option<Expr>,
}

The parts of a fetch from an array or of an assignment to a part of an array, as SubscriptingRef.

Fields

container: Expr

refexpr: the array.

upper: Vec<Option<Expr>>

refupperindexpr: the subscript of each dimension, or the upper bound of a slice. None is a bound that the query does not give.

lower: Option<Vec<Option<Expr>>>

reflowerindexpr: the lower bound of each dimension of a slice, or None for one element.

assign: Option<Expr>

refassgnexpr: the new value of the element or of the slice in an assignment, as a[1] := 5 of PL/pgSQL makes it. The result of an assignment is the array with the new value.

Implementations

impl Subscript

pub fn bounds(&self) -> impl Iterator<Item = &Expr>

The subscripts that the query gives, the upper bounds first.

Trait Implementations

impl Clone for Subscript

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Subscript

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

Formats the value using the given formatter.

impl PartialEq for Subscript

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Subscript