Add Quorum Privacy Precompile to ActivePrecompiles list

This is currently only used for the experimental YoloV2 EIP 2929 (where all active precompiles for the current block height must be known) so not critical but worth fixing ahead of the concrete release that will be pulled in from a future upstream geth merge

core/vm/evm.go

@@ -60,6 +60,13 @@ type (
 // ActivePrecompiles returns the addresses of the precompiles enabled with the current
 // configuration
 func (evm *EVM) ActivePrecompiles() []common.Address {
+	return append(evm.activePrecompiles(), evm.activeQuorumPrecompiles()...)
+}
+
+// (Quorum) moved upstream ActivePrecompiles() logic to new method activePrecompiles()
+// This functionality is part of an experimental feature so may be subject to future changes. Keeping the original code
+// untouched in a new method should flag any changes from future merges.
+func (evm *EVM) activePrecompiles() []common.Address {
 	switch {
 	case evm.chainRules.IsYoloV2:
 		return PrecompiledAddressesYoloV2
@@ -72,6 +79,14 @@ func (evm *EVM) ActivePrecompiles() []common.Address {
 	}
 }
 
+func (evm *EVM) activeQuorumPrecompiles() []common.Address {
+	var p []common.Address
+	if evm.chainRules.IsPrivacyPrecompile {
+		p = append(p, common.QuorumPrivacyPrecompileContractAddress())
+	}
+	return p
+}
+
 func (evm *EVM) precompile(addr common.Address) (PrecompiledContract, bool) {
 	var precompiles map[common.Address]PrecompiledContract
 	switch {

core/vm/evm_test.go

@@ -0,0 +1,97 @@
+package vm
+
+import (
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/params"
+	"github.com/stretchr/testify/require"
+)
+
+func TestActivePrecompiles(t *testing.T) {
+	tests := []struct {
+		name string
+		evm  *EVM
+		want []common.Address
+	}{
+		{
+			name: "istanbul-plus-quorum-privacy",
+			evm: &EVM{
+				chainRules: params.Rules{
+					IsIstanbul:          true,
+					IsPrivacyPrecompile: true,
+				},
+			},
+			want: []common.Address{
+				common.BytesToAddress([]byte{1}),
+				common.BytesToAddress([]byte{2}),
+				common.BytesToAddress([]byte{3}),
+				common.BytesToAddress([]byte{4}),
+				common.BytesToAddress([]byte{5}),
+				common.BytesToAddress([]byte{6}),
+				common.BytesToAddress([]byte{7}),
+				common.BytesToAddress([]byte{8}),
+				common.BytesToAddress([]byte{9}),
+				common.QuorumPrivacyPrecompileContractAddress(),
+			},
+		},
+		{
+			name: "homestead-plus-quorum-privacy",
+			evm: &EVM{
+				chainRules: params.Rules{
+					IsHomestead:         true,
+					IsPrivacyPrecompile: true,
+				},
+			},
+			want: []common.Address{
+				common.BytesToAddress([]byte{1}),
+				common.BytesToAddress([]byte{2}),
+				common.BytesToAddress([]byte{3}),
+				common.BytesToAddress([]byte{4}),
+				common.QuorumPrivacyPrecompileContractAddress(),
+			},
+		},
+		{
+			name: "istanbul",
+			evm: &EVM{
+				chainRules: params.Rules{
+					IsIstanbul:          true,
+					IsPrivacyPrecompile: false,
+				},
+			},
+			want: []common.Address{
+				common.BytesToAddress([]byte{1}),
+				common.BytesToAddress([]byte{2}),
+				common.BytesToAddress([]byte{3}),
+				common.BytesToAddress([]byte{4}),
+				common.BytesToAddress([]byte{5}),
+				common.BytesToAddress([]byte{6}),
+				common.BytesToAddress([]byte{7}),
+				common.BytesToAddress([]byte{8}),
+				common.BytesToAddress([]byte{9}),
+			},
+		},
+		{
+			name: "homestead",
+			evm: &EVM{
+				chainRules: params.Rules{
+					IsHomestead:         true,
+					IsPrivacyPrecompile: false,
+				},
+			},
+			want: []common.Address{
+				common.BytesToAddress([]byte{1}),
+				common.BytesToAddress([]byte{2}),
+				common.BytesToAddress([]byte{3}),
+				common.BytesToAddress([]byte{4}),
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := tt.evm.ActivePrecompiles()
+			require.ElementsMatchf(t, tt.want, got, "want: %v, got: %v", tt.want, got)
+		})
+	}
+}