Struct IndexConstraintUsage 

pub struct IndexConstraintUsage {
    pub argv_index: i32,
    pub omit: bool,
}

Per-constraint usage information set by best_index.

Fields

argv_index: i32

1-based index into the args array passed to filter. Non-positive values mean this constraint supplies no argument. All positive values returned by one best_index call must be unique and form a contiguous sequence starting at 1.

omit: bool

If true, the vtab guarantees this constraint is satisfied and the core need not double-check it. This is only effective when argv_index is positive; constraints that supply no filter argument remain subject to core evaluation.

Trait Implementations

impl Clone for IndexConstraintUsage

fn clone(&self) -> IndexConstraintUsage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexConstraintUsage

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

Formats the value using the given formatter.

impl Default for IndexConstraintUsage

fn default() -> IndexConstraintUsage

Returns the “default value” for a type.