Enum halo2_proofs::dev::VerifyFailure
source · [−]pub enum VerifyFailure {
CellNotAssigned {
gate: Gate,
region: Region,
gate_offset: usize,
column: Column<Any>,
offset: isize,
},
ConstraintNotSatisfied {
constraint: Constraint,
location: FailureLocation,
cell_values: Vec<(VirtualCell, String)>,
},
ConstraintPoisoned {
constraint: Constraint,
},
Lookup {
lookup_index: usize,
location: FailureLocation,
},
Permutation {
column: Column,
location: FailureLocation,
},
}
Expand description
The reasons why a particular circuit is not satisfied.
Variants
CellNotAssigned
Fields
gate: Gate
The index of the active gate.
region: Region
The region in which this cell should be assigned.
gate_offset: usize
The offset (relative to the start of the region) at which the active gate queries this cell.
offset: isize
The offset (relative to the start of the region) at which this cell should be
assigned. This may be negative (for example, if a selector enables a gate at
offset 0, but the gate uses Rotation::prev()
).
A cell used in an active gate was not assigned to.
ConstraintNotSatisfied
Fields
constraint: Constraint
The polynomial constraint that is not satisfied.
location: FailureLocation
The location at which this constraint is not satisfied.
FailureLocation::OutsideRegion
is usually caused by a constraint that does
not contain a selector, and as a result is active on every row.
cell_values: Vec<(VirtualCell, String)>
The values of the virtual cells used by this constraint.
A constraint was not satisfied for a particular row.
ConstraintPoisoned
Fields
constraint: Constraint
The polynomial constraint that is not satisfied.
A constraint was active on an unusable row, and is likely missing a selector.
Lookup
Fields
lookup_index: usize
The index of the lookup that is not satisfied. These indices are assigned in
the order in which ConstraintSystem::lookup
is called during
Circuit::configure
.
location: FailureLocation
The location at which the lookup is not satisfied.
FailureLocation::InRegion
is most common, and may be due to the intentional
use of a lookup (if its inputs are conditional on a complex selector), or an
unintentional lookup constraint that overlaps the region (indicating that the
lookup’s inputs should be made conditional).
FailureLocation::OutsideRegion
is uncommon, and could mean that:
- The input expressions do not correctly constrain a default value that exists in the table when the lookup is not being used.
- The input expressions use a column queried at a non-zero
Rotation
, and the lookup is active on a row adjacent to an unrelated region.
A lookup input did not exist in its corresponding table.
Permutation
Fields
column: Column
The column in which this permutation is not satisfied.
location: FailureLocation
The location at which the permutation is not satisfied.
A permutation did not preserve the original value of a cell.
Trait Implementations
sourceimpl Debug for VerifyFailure
impl Debug for VerifyFailure
sourceimpl Display for VerifyFailure
impl Display for VerifyFailure
sourceimpl PartialEq<VerifyFailure> for VerifyFailure
impl PartialEq<VerifyFailure> for VerifyFailure
sourcefn eq(&self, other: &VerifyFailure) -> bool
fn eq(&self, other: &VerifyFailure) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &VerifyFailure) -> bool
fn ne(&self, other: &VerifyFailure) -> bool
This method tests for !=
.
impl StructuralPartialEq for VerifyFailure
Auto Trait Implementations
impl RefUnwindSafe for VerifyFailure
impl Send for VerifyFailure
impl Sync for VerifyFailure
impl Unpin for VerifyFailure
impl UnwindSafe for VerifyFailure
Blanket Implementations
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T: ?Sized,
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