Struct AssignmentTarget 

pub struct AssignmentTarget<E = Expr> {
    pub column: String,
    pub indirection: Vec<AssignmentStep<E>>,
}

Target syntax is separate from the value expression. Every bound belongs to the original input row, even when repeated targets compose writes to one column.

Fields

column: String

indirection: Vec<AssignmentStep<E>>

Implementations

impl<E> AssignmentTarget<E>

pub fn is_whole_column(&self) -> bool

pub fn expressions(&self) -> impl Iterator<Item = &E>

pub fn expressions_mut(&mut self) -> impl Iterator<Item = &mut E>

pub fn map<T>(self, map: impl FnMut(E) -> T) -> AssignmentTarget<T>

Trait Implementations

impl<E: Clone> Clone for AssignmentTarget<E>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E: Debug> Debug for AssignmentTarget<E>

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

Formats the value using the given formatter.

impl<'de, E: Deserialize<'de>> Deserialize<'de> for AssignmentTarget<E>

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl<E> From<&str> for AssignmentTarget<E>

fn from(column: &str) -> Self

Converts to this type from the input type.

impl<E> From<String> for AssignmentTarget<E>

fn from(column: String) -> Self

Converts to this type from the input type.

impl<E: PartialEq> PartialEq for AssignmentTarget<E>

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

Equality operator ==.

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

Inequality operator !=.

impl<E: Serialize> Serialize for AssignmentTarget<E>

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl<E: PartialEq> StructuralPartialEq for AssignmentTarget<E>