Struct halo2_frontend :: circuit :: layouter :: RegionShape Copy item path

impl RegionShape

pub fn new(region_index: RegionIndex) -> Self

Create a new RegionShape for a region at region_index.

pub fn region_index(&self) -> RegionIndex

Get the region_index of a RegionShape.

pub fn columns(&self) -> &HashSet<RegionColumn>

Get a reference to the set of columns used in a RegionShape.

pub fn row_count(&self) -> usize

Get the row_count of a RegionShape.

Trait Implementations§

impl Clone for RegionShape

fn clone(&self) -> RegionShape

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl Debug for RegionShape

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

Formats the value using the given formatter. Read more

impl<F: Field> RegionLayouter<F> for RegionShape

fn enable_selector<'v>( &'v mut self, _: &'v (dyn Fn() -> String + 'v), selector: &Selector, offset: usize ) -> Result<(), Error>

Enables a selector at the given offset.

fn assign_advice<'v>( &'v mut self, _: &'v (dyn Fn() -> String + 'v), column: Column<Advice>, offset: usize, _to: &'v mut (dyn FnMut() -> Value<Assigned<F>> + 'v) ) -> Result<Cell, Error>

Assign an advice column value (witness)

fn assign_advice_from_constant<'v>( &'v mut self, annotation: &'v (dyn Fn() -> String + 'v), column: Column<Advice>, offset: usize, constant: Assigned<F> ) -> Result<Cell, Error>

Assigns a constant value to the column advice at offset within this region. Read more

fn assign_advice_from_instance<'v>( &mut self, _: &'v (dyn Fn() -> String + 'v), _: Column<Instance>, _: usize, advice: Column<Advice>, offset: usize ) -> Result<(Cell, Value<F>), Error>

Assign the value of the instance column’s cell at absolute location row to the column advice at offset within this region. Read more

fn instance_value( &mut self, _instance: Column<Instance>, _row: usize ) -> Result<Value<F>, Error>

Returns the value of the instance column’s cell at absolute location row.

fn assign_fixed<'v>( &'v mut self, _: &'v (dyn Fn() -> String + 'v), column: Column<Fixed>, offset: usize, _to: &'v mut (dyn FnMut() -> Value<Assigned<F>> + 'v) ) -> Result<Cell, Error>

Assigns a fixed value

fn name_column<'v>( &'v mut self, _annotation: &'v (dyn Fn() -> String + 'v), _column: Column<Any> )

Allows the circuit implementor to name/annotate a Column within a Region context. Read more

fn constrain_constant( &mut self, _cell: Cell, _constant: Assigned<F> ) -> Result<(), Error>

Constrains a cell to have a constant value. Read more

fn constrain_equal(&mut self, _left: Cell, _right: Cell) -> Result<(), Error>

Constraint two cells to have the same value. Read more

Auto Trait Implementations§

impl UnwindSafe for RegionShape

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