Struct halo2_proofs::plonk::ConstraintSystem
source · [−]pub struct ConstraintSystem<F: Field> { /* private fields */ }
Expand description
This is a description of the circuit environment, such as the gate, column and permutation arrangements.
Implementations
sourceimpl<F: Field> ConstraintSystem<F>
impl<F: Field> ConstraintSystem<F>
sourcepub fn pinned(&self) -> PinnedConstraintSystem<'_, F>
pub fn pinned(&self) -> PinnedConstraintSystem<'_, F>
Obtain a pinned version of this constraint system; a structure with the minimal parameters needed to determine the rest of the constraint system.
sourcepub fn enable_constant(&mut self, column: Column<Fixed>)
pub fn enable_constant(&mut self, column: Column<Fixed>)
Enables this fixed column to be used for global constant assignments.
Side-effects
The column will be equality-enabled.
sourcepub fn enable_equality<C: Into<Column<Any>>>(&mut self, column: C)
pub fn enable_equality<C: Into<Column<Any>>>(&mut self, column: C)
Enable the ability to enforce equality over cells in this column
sourcepub fn lookup(
&mut self,
table_map: impl FnOnce(&mut VirtualCells<'_, F>) -> Vec<(Expression<F>, TableColumn)>
) -> usize
pub fn lookup(
&mut self,
table_map: impl FnOnce(&mut VirtualCells<'_, F>) -> Vec<(Expression<F>, TableColumn)>
) -> usize
Add a lookup argument for some input expressions and table columns.
table_map
returns a map between input expressions and the table columns
they need to match.
sourcepub fn set_minimum_degree(&mut self, degree: usize)
pub fn set_minimum_degree(&mut self, degree: usize)
Sets the minimum degree required by the circuit, which can be set to a larger amount than actually needed. This can be used, for example, to force the permutation argument to involve more columns in the same set.
sourcepub fn create_gate<C: Into<Constraint<F>>, Iter: IntoIterator<Item = C>>(
&mut self,
name: &'static str,
constraints: impl FnOnce(&mut VirtualCells<'_, F>) -> Iter
)
pub fn create_gate<C: Into<Constraint<F>>, Iter: IntoIterator<Item = C>>(
&mut self,
name: &'static str,
constraints: impl FnOnce(&mut VirtualCells<'_, F>) -> Iter
)
Creates a new gate.
Panics
A gate is required to contain polynomial constraints. This method will panic if
constraints
returns an empty iterator.
sourcepub fn selector(&mut self) -> Selector
pub fn selector(&mut self) -> Selector
Allocate a new (simple) selector. Simple selectors cannot be added to expressions nor multiplied by other expressions containing simple selectors. Also, simple selectors may not appear in lookup argument inputs.
sourcepub fn complex_selector(&mut self) -> Selector
pub fn complex_selector(&mut self) -> Selector
Allocate a new complex selector that can appear anywhere within expressions.
sourcepub fn lookup_table_column(&mut self) -> TableColumn
pub fn lookup_table_column(&mut self) -> TableColumn
Allocates a new fixed column that can be used in a lookup table.
sourcepub fn fixed_column(&mut self) -> Column<Fixed>
pub fn fixed_column(&mut self) -> Column<Fixed>
Allocate a new fixed column
sourcepub fn advice_column(&mut self) -> Column<Advice>
pub fn advice_column(&mut self) -> Column<Advice>
Allocate a new advice column
sourcepub fn instance_column(&mut self) -> Column<Instance>
pub fn instance_column(&mut self) -> Column<Instance>
Allocate a new instance column
sourcepub fn degree(&self) -> usize
pub fn degree(&self) -> usize
Compute the degree of the constraint system (the maximum degree of all constraints).
sourcepub fn blinding_factors(&self) -> usize
pub fn blinding_factors(&self) -> usize
Compute the number of blinding factors necessary to perfectly blind each of the prover’s witness polynomials.
sourcepub fn minimum_rows(&self) -> usize
pub fn minimum_rows(&self) -> usize
Returns the minimum necessary rows that need to exist in order to account for e.g. blinding factors.
Trait Implementations
sourceimpl<F: Clone + Field> Clone for ConstraintSystem<F>
impl<F: Clone + Field> Clone for ConstraintSystem<F>
sourcefn clone(&self) -> ConstraintSystem<F>
fn clone(&self) -> ConstraintSystem<F>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl<F: Debug + Field> Debug for ConstraintSystem<F>
impl<F: Debug + Field> Debug for ConstraintSystem<F>
sourceimpl<F: Field> Default for ConstraintSystem<F>
impl<F: Field> Default for ConstraintSystem<F>
sourcefn default() -> ConstraintSystem<F>
fn default() -> ConstraintSystem<F>
Returns the “default value” for a type. Read more
Auto Trait Implementations
impl<F> RefUnwindSafe for ConstraintSystem<F> where
F: RefUnwindSafe,
impl<F> Send for ConstraintSystem<F>
impl<F> Sync for ConstraintSystem<F>
impl<F> Unpin for ConstraintSystem<F> where
F: Unpin,
impl<F> UnwindSafe for ConstraintSystem<F> where
F: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> FmtForward for T
impl<T> FmtForward for T
fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
Causes self
to use its Binary
implementation when Debug
-formatted.
fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
Causes self
to use its Display
implementation when
Debug
-formatted. Read more
fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
Causes self
to use its LowerExp
implementation when
Debug
-formatted. Read more
fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
Causes self
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fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
Causes self
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-formatted.
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Self: Pointer,
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Self: Pointer,
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-formatted. Read more
fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
Causes self
to use its UpperExp
implementation when
Debug
-formatted. Read more
fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
Causes self
to use its UpperHex
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Debug
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impl<T> Pipe for T where
T: ?Sized,
impl<T> Pipe for T where
T: ?Sized,
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
Pipes by value. This is generally the method you want to use. Read more
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R: 'a,
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,
Borrows self
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R: 'a,
fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
R: 'a,
Mutably borrows self
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Self: Borrow<B>,
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Self: Borrow<B>,
B: 'a + ?Sized,
R: 'a,
Borrows self
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fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
Mutably borrows self
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Self: AsRef<U>,
U: 'a + ?Sized,
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Self: AsRef<U>,
U: 'a + ?Sized,
R: 'a,
Borrows self
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fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R where
Self: AsMut<U>,
U: 'a + ?Sized,
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fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R where
Self: AsMut<U>,
U: 'a + ?Sized,
R: 'a,
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Borrows self
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impl<T> Pointable for T
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impl<T> Tap for T
impl<T> Tap for T
fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self where
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R: ?Sized,
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self where
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
Calls .tap()
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self where
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self where
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
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sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more