Struct SolutionRow 

pub struct SolutionRow { /* private fields */ }

A single solution row from the WHERE clause evaluation. Maps variable name → bound value (string serialisation of the term).

Implementations

impl SolutionRow

pub fn new() -> Self

Create an empty solution row.

pub fn bind(&mut self, var: impl Into<String>, value: impl Into<String>)

Bind a variable to a value.

pub fn get(&self, var: &str) -> Option<&str>

Look up a variable binding.

pub fn is_bound(&self, var: &str) -> bool

Returns true if the variable is bound.

pub fn bound_vars(&self) -> impl Iterator<Item = &str>

Returns all variable names bound in this row.

Trait Implementations

impl Clone for SolutionRow

fn clone(&self) -> SolutionRow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SolutionRow

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

Formats the value using the given formatter.

impl Default for SolutionRow

fn default() -> SolutionRow

Returns the “default value” for a type.