/
r1c.go
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/
r1c.go
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// Copyright 2020 ConsenSys AG
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package compiled
// LinearExpression represent a linear expression of variables
type LinearExpression []Term
// Clone returns a copy of the underlying slice
func (l LinearExpression) Clone() LinearExpression {
res := make(LinearExpression, len(l))
copy(res, l)
return res
}
// R1C used to compute the wires
type R1C struct {
L LinearExpression
R LinearExpression
O LinearExpression
Solver SolvingMethod
}
// LogEntry is used as a shared data structure between the frontend and the backend
// to represent string values (in logs or debug info) where a value is not known at compile time
// (which is the case for variables that need to be resolved in the R1CS)
type LogEntry struct {
Format string
ToResolve []int
}
// Visibility encodes a Variable (or wire) visibility
// Possible values are Unset, Internal, Secret or Public
type Visibility uint8
const (
Unset Visibility = iota
Internal
Secret
Public
)
// SolvingMethod is used by the R1CS solver
// note: it is not in backend/r1cs to avoid an import cycle
type SolvingMethod uint8
// SingleOuput and BinaryDec are types of solving method for rank-1 constraints
const (
SingleOutput SolvingMethod = iota
BinaryDec
)