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use boojum::{
config::DevCSConfig,
cs::{
cs_builder::{new_builder, CsBuilder, CsBuilderImpl},
cs_builder_reference::CsReferenceImplementationBuilder,
gates::{
BooleanConstraintGate, ConstantsAllocatorGate, DotProductGate,
FmaGateInBaseFieldWithoutConstant, NopGate, ReductionGate, SelectionGate, U8x4FMAGate,
UIntXAddGate, ZeroCheckGate,
},
implementations::reference_cs::CSReferenceImplementation,
traits::{cs::ConstraintSystem, gate::GatePlacementStrategy},
CSGeometry, GateConfigurationHolder, LookupParameters, StaticToolboxHolder,
},
field::{goldilocks::GoldilocksField, SmallField},
gadgets::non_native_field::implementations::NonNativeFieldOverU16Params,
};
use crate::bn254::{BN256BaseNNFieldParams, BN256ScalarNNFieldParams};
type F = GoldilocksField;
type P = GoldilocksField;
/// Creates a test constraint system for testing purposes that includes the
/// majority (even possibly unneeded) of the gates and tables.
pub fn create_test_cs(
max_trace_len: usize,
) -> CSReferenceImplementation<
F,
P,
DevCSConfig,
impl GateConfigurationHolder<F>,
impl StaticToolboxHolder,
> {
let geometry = CSGeometry {
num_columns_under_copy_permutation: 200,
num_witness_columns: 0,
num_constant_columns: 8,
max_allowed_constraint_degree: 4,
};
let max_variables = 1 << 27;
fn configure<
F: SmallField,
T: CsBuilderImpl<F, T>,
GC: GateConfigurationHolder<F>,
TB: StaticToolboxHolder,
>(
builder: CsBuilder<T, F, GC, TB>,
) -> CsBuilder<T, F, impl GateConfigurationHolder<F>, impl StaticToolboxHolder> {
let builder = builder.allow_lookup(
LookupParameters::UseSpecializedColumnsWithTableIdAsConstant {
width: 1,
num_repetitions: 20,
share_table_id: true,
},
);
let builder = U8x4FMAGate::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
let builder = ConstantsAllocatorGate::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
let builder = FmaGateInBaseFieldWithoutConstant::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
let builder = ReductionGate::<F, 4>::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
// let owned_cs = ReductionGate::<F, 4>::configure_for_cs(owned_cs, GatePlacementStrategy::UseSpecializedColumns { num_repetitions: 8, share_constants: true });
let builder = BooleanConstraintGate::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
let builder = UIntXAddGate::<32>::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
let builder = UIntXAddGate::<16>::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
let builder = UIntXAddGate::<8>::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
let builder = SelectionGate::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
let builder = ZeroCheckGate::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
false,
);
let builder = DotProductGate::<4>::configure_builder(
builder,
GatePlacementStrategy::UseGeneralPurposeColumns,
);
// let owned_cs = DotProductGate::<4>::configure_for_cs(owned_cs, GatePlacementStrategy::UseSpecializedColumns { num_repetitions: 1, share_constants: true });
let builder =
NopGate::configure_builder(builder, GatePlacementStrategy::UseGeneralPurposeColumns);
builder
}
let builder_impl =
CsReferenceImplementationBuilder::<F, P, DevCSConfig>::new(geometry, max_trace_len);
let builder = new_builder::<_, F>(builder_impl);
let builder = configure(builder);
let mut owned_cs = builder.build(max_variables);
// add tables
// let table = create_xor8_table();
// owned_cs.add_lookup_table::<Xor8Table, 3>(table);
// let table = create_and8_table();
// owned_cs.add_lookup_table::<And8Table, 3>(table);
// seq_macro::seq!(C in 0..32 {
// let table = create_fixed_base_mul_table::<F, 0, C>();
// owned_cs.add_lookup_table::<FixedBaseMulTable<0, C>, 3>(table);
// let table = create_fixed_base_mul_table::<F, 1, C>();
// owned_cs.add_lookup_table::<FixedBaseMulTable<1, C>, 3>(table);
// let table = create_fixed_base_mul_table::<F, 2, C>();
// owned_cs.add_lookup_table::<FixedBaseMulTable<2, C>, 3>(table);
// let table = create_fixed_base_mul_table::<F, 3, C>();
// owned_cs.add_lookup_table::<FixedBaseMulTable<3, C>, 3>(table);
// let table = create_fixed_base_mul_table::<F, 4, C>();
// owned_cs.add_lookup_table::<FixedBaseMulTable<4, C>, 3>(table);
// let table = create_fixed_base_mul_table::<F, 5, C>();
// owned_cs.add_lookup_table::<FixedBaseMulTable<5, C>, 3>(table);
// let table = create_fixed_base_mul_table::<F, 6, C>();
// owned_cs.add_lookup_table::<FixedBaseMulTable<6, C>, 3>(table);
// let table = create_fixed_base_mul_table::<F, 7, C>();
// owned_cs.add_lookup_table::<FixedBaseMulTable<7, C>, 3>(table);
// });
use boojum::gadgets::tables::create_range_check_16_bits_table;
use boojum::gadgets::tables::RangeCheck16BitsTable;
let table = create_range_check_16_bits_table();
owned_cs.add_lookup_table::<RangeCheck16BitsTable<1>, 1>(table);
// let table = create_byte_split_table::<F, 1>();
// owned_cs.add_lookup_table::<ByteSplitTable<1>, 3>(table);
// let table = create_byte_split_table::<F, 2>();
// owned_cs.add_lookup_table::<ByteSplitTable<2>, 3>(table);
// let table = create_byte_split_table::<F, 3>();
// owned_cs.add_lookup_table::<ByteSplitTable<3>, 3>(table);
// let table = create_byte_split_table::<F, 4>();
// owned_cs.add_lookup_table::<ByteSplitTable<4>, 3>(table);
owned_cs
}
/// Returns BN254 base field parameters
pub fn bn254_base_field_params() -> BN256BaseNNFieldParams {
NonNativeFieldOverU16Params::create()
}
/// Returns BN254 scalar field parameters
pub fn bn254_scalar_field_params() -> BN256ScalarNNFieldParams {
NonNativeFieldOverU16Params::create()
}