Struct Row 

pub struct Row(pub Vec<(String, Value)>);

One pipeline row, preserving column order (unlike a sorted map).

Tuple Fields

0: Vec<(String, Value)>

Implementations

impl Row

pub fn new() -> Self

pub fn get(&self, key: &str) -> Value

pub fn contains(&self, key: &str) -> bool

pub fn set(&mut self, key: &str, value: Value)

Set a key: overwrite in place if present (preserving position), else append.

pub fn columns(&self) -> Vec<String>

pub fn scope(&self) -> Scope

A lookup scope for the value dialect (order irrelevant for evaluation). Prefer lookup on the hot path — it evaluates directly against the row with no map build (T3).

pub fn lookup(&self) -> &[(String, Value)]

The row as a zero-copy fv_value::Lookup — evaluate an expression against it without building a Scope per row (the T0-measured 211ns/row saved on filter/applyExpression).

Trait Implementations

impl Clone for Row

fn clone(&self) -> Row

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Row

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

Formats the value using the given formatter.

impl Default for Row

fn default() -> Row

Returns the “default value” for a type.

impl PartialEq for Row

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Row