Trait snarkvm_wasm::ConstraintSystem[−][src]

pub trait ConstraintSystem<F> where
    F: Field, {
    type Root: ConstraintSystem<F>;
    fn alloc<FN, A, AR>(
        &mut self, 
        annotation: A, 
        f: FN
    ) -> Result<Variable, SynthesisError>
    where
        A: FnOnce() -> AR,
        FN: FnOnce() -> Result<F, SynthesisError>,
        AR: AsRef<str>;

    fn alloc_input<FN, A, AR>(
        &mut self, 
        annotation: A, 
        f: FN
    ) -> Result<Variable, SynthesisError>
    where
        A: FnOnce() -> AR,
        FN: FnOnce() -> Result<F, SynthesisError>,
        AR: AsRef<str>;

    fn enforce<A, AR, LA, LB, LC>(&mut self, annotation: A, a: LA, b: LB, c: LC)
    where
        LC: FnOnce(LinearCombination<F>) -> LinearCombination<F>,
        A: FnOnce() -> AR,
        AR: AsRef<str>,
        LA: FnOnce(LinearCombination<F>) -> LinearCombination<F>,
        LB: FnOnce(LinearCombination<F>) -> LinearCombination<F>;

    fn push_namespace<NR, N>(&mut self, name_fn: N)
    where
        N: FnOnce() -> NR,
        NR: AsRef<str>;

    fn pop_namespace(&mut self);

    fn get_root(&mut self) -> &mut Self::Root;

    fn num_constraints(&self) -> usize;

    fn num_public_variables(&self) -> usize;

    fn num_private_variables(&self) -> usize;

    fn one() -> Variable { ... }

    fn ns<NR, N>(&mut self, name_fn: N) -> Namespace<'_, F, Self::Root>
    where
        N: FnOnce() -> NR,
        NR: AsRef<str>,
    { ... }
}
Expand description

Represents a constraint system which can have new variables allocated and constrains between them formed.

Associated Types

Represents the type of the “root” of this constraint system so that nested namespaces can minimize indirection.

Required methods

Allocate a private variable in the constraint system. The provided function is used to determine the assignment of the variable. The given annotation function is invoked in testing contexts in order to derive a unique name for this variable in the current namespace.

Allocate a public variable in the constraint system. The provided function is used to determine the assignment of the variable.

Enforce that A * B = C. The annotation function is invoked in testing contexts in order to derive a unique name for the constraint in the current namespace.

Create a new (sub)namespace and enter into it. Not intended for downstream use; use namespace instead.

Exit out of the existing namespace. Not intended for downstream use; use namespace instead.

Gets the “root” constraint system, bypassing the namespacing. Not intended for downstream use; use namespace instead.

Output the number of constraints in the system.

Output the number of public input variables to the system.

Output the number of private input variables to the system.

Provided methods

Return the “one” input variable

Begin a namespace for this constraint system.

Implementations on Foreign Types

Convenience implementation of ConstraintSystem for mutable references to constraint systems.

Implementors