Struct CompiledFilter 

pub struct CompiledFilter { /* private fields */ }

A filter that has been compiled against a fixed column schema.

Cheap to clone (the op list is Vec<CompiledOp> and predicates are already cloned at compile time).

Implementations

impl CompiledFilter

pub fn compile( filter: &Filter, schema: &HashMap<String, usize>, ) -> Result<Self, CompileError>

Compile a Filter against a column-name → slot-index map.

Returns CompileError::UnknownColumn when any predicate references a column not in the schema.

pub fn op_count(&self) -> usize

Number of opcodes in the compiled program. Useful for tests and for diagnostics.

pub fn evaluate(&self, slot: &[Value]) -> bool

Evaluate the compiled filter against a row slot.

slot must be indexed by the same column-index map used at compile time. Out-of-range indices are treated as Value::Null (matching the legacy walker’s “column not found” semantics).

Hot path — no allocation, no string lookup. The bool stack is kept tiny (typical filter has ≤ 8 nesting levels) and lives on the eval call’s local Vec.

Trait Implementations

impl Clone for CompiledFilter

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 CompiledFilter

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

Formats the value using the given formatter.