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/// ! This module contains helpers to express and use constraints for components. | ||
use std::fmt::Debug; | ||
use std::ops::{Add, AddAssign, Mul, Sub}; | ||
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use num_traits::{One, Zero}; | ||
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use crate::core::fields::m31::BaseField; | ||
use crate::core::fields::qm31::SecureField; | ||
use crate::core::fields::FieldExpOps; | ||
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/// A trait for evaluating expressions at some point or row. | ||
pub trait EvalAtRow { | ||
/// The base field type. | ||
type F: FieldExpOps | ||
+ Copy | ||
+ Debug | ||
+ AddAssign<Self::F> | ||
+ AddAssign<BaseField> | ||
+ Add<Self::F, Output = Self::F> | ||
+ Sub<Self::F, Output = Self::F> | ||
+ Mul<BaseField, Output = Self::F> | ||
+ Add<SecureField, Output = Self::EF> | ||
+ Mul<SecureField, Output = Self::EF> | ||
+ From<BaseField>; | ||
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/// The extension field type. | ||
type EF: One | ||
+ Copy | ||
+ Debug | ||
+ Zero | ||
+ Add<SecureField, Output = Self::EF> | ||
+ Sub<SecureField, Output = Self::EF> | ||
+ Mul<SecureField, Output = Self::EF> | ||
+ Add<Self::F, Output = Self::EF> | ||
+ Mul<Self::F, Output = Self::EF> | ||
+ Sub<Self::EF, Output = Self::EF> | ||
+ Mul<Self::EF, Output = Self::EF>; | ||
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/// Returns the next mask. | ||
fn next_mask(&mut self) -> Self::F { | ||
self.next_interaction_mask(0, [0])[0] | ||
} | ||
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/// Returns the next mask for the given interaction. | ||
fn next_interaction_mask<const N: usize>( | ||
&mut self, | ||
interaction: usize, | ||
offsets: [isize; N], | ||
) -> [Self::F; N]; | ||
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/// Adds a constraint to the component. | ||
fn add_constraint<G>(&mut self, constraint: G) | ||
where | ||
Self::EF: Mul<G, Output = Self::EF>; | ||
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/// Combines 4 base field values into a single extension field value. | ||
fn combine_ef(values: [Self::F; 4]) -> Self::EF; | ||
} |
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