Enum halo2_proofs::plonk::ErrorFront
source · pub enum ErrorFront {
Synthesis,
BoundsFailure,
NotEnoughRowsAvailable {
current_k: u32,
},
NotEnoughColumnsForConstants,
ColumnNotInPermutation(Column<Any>),
TableError(TableError),
AssignError(AssignError),
Other(String),
}
Expand description
This is an error that could occur during circuit synthesis.
NOTE: AssignError
is introduced to provide more debugging info
to developers when assigning witnesses to circuit cells.
Hence, they are used for [MockProver
] and [WitnessCollection
].
The [keygen
] process use the [NotEnoughRowsAvailable
], since it is just enough.
Variants§
Synthesis
This is an error that can occur during synthesis of the circuit, for example, when the witness is not present.
BoundsFailure
Out of bounds index passed to a backend
NotEnoughRowsAvailable
k
is too small for the given circuit.
NotEnoughColumnsForConstants
Circuit synthesis requires global constants, but circuit configuration did not
call ConstraintSystem::enable_constant
on fixed columns with sufficient space.
ColumnNotInPermutation(Column<Any>)
The instance sets up a copy constraint involving a column that has not been included in the permutation.
TableError(TableError)
An error relating to a lookup table.
AssignError(AssignError)
An error relating to a circuit assignment.
Other(String)
Generic error not covered by previous cases
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