Enum ConstraintExpr

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pub enum ConstraintExpr<F> {
    Cell(ProgramCell),
    Const(F),
    Add(ExprId, ExprId),
    Mul(ExprId, ExprId),
    Scale(F, ExprId),
    Sum(Vec<ExprId>),
}

Expand description

A single node in the constraint AST-DAG. All variants are algebraic operations over GF(2^128).

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Cell(ProgramCell)

A trace cell reference (column + current/next row).

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Const(F)

A field constant.

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Add(ExprId, ExprId)

Addition of two sub-expressions. In GF(2^N) this is XOR.

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Mul(ExprId, ExprId)

Multiplication of two sub-expressions.

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Scale(F, ExprId)

Scalar multiplication: coeff * expr.

Avoids creating a Const node + Mul pair for the common case.

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Sum(Vec<ExprId>)

Sum of N sub-expressions. Exists specifically for Theta-style linear combinations to avoid deep Add chains. Evaluates to sum of children[i].

Trait Implementations§

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impl<F: Clone> Clone for ConstraintExpr<F>

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fn clone(&self) -> ConstraintExpr<F>

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl<F: Debug> Debug for ConstraintExpr<F>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<F> UnwindSafe for ConstraintExpr<F>
where F: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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