Use math.MaxUint64 (#9857)

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>

beacon-chain/rpc/prysm/v1alpha1/debug/block.go

@@ -3,6 +3,7 @@ package debug
 import (
 	"context"
 	"fmt"
+	"math"
 
 	types "github.com/prysmaticlabs/eth2-types"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
@@ -61,7 +62,7 @@ func (ds *Server) GetInclusionSlot(ctx context.Context, req *pbrpc.InclusionSlot
 		return nil, status.Errorf(codes.Internal, "Could not retrieve blocks: %v", err)
 	}
 
-	inclusionSlot := types.Slot(1<<64 - 1)
+	inclusionSlot := types.Slot(math.MaxUint64)
 	targetStates := make(map[[32]byte]state.ReadOnlyBeaconState)
 	for _, blk := range blks {
 		for _, a := range blk.Block().Body().Attestations() {

config/params/mainnet_config.go

@@ -65,8 +65,8 @@ var mainnetNetworkConfig = &NetworkConfig{
 
 var mainnetBeaconConfig = &BeaconChainConfig{
 	// Constants (Non-configurable)
-	FarFutureEpoch:           1<<64 - 1,
-	FarFutureSlot:            1<<64 - 1,
+	FarFutureEpoch:           math.MaxUint64,
+	FarFutureSlot:            math.MaxUint64,
 	BaseRewardsPerEpoch:      4,
 	DepositContractTreeDepth: 32,
 	GenesisDelay:             604800, // 1 week.

config/params/minimal_config.go

@@ -82,8 +82,8 @@ func MinimalSpecConfig() *BeaconChainConfig {
 	minimalConfig.GenesisForkVersion = []byte{0, 0, 0, 1}
 
 	minimalConfig.DepositContractTreeDepth = 32
-	minimalConfig.FarFutureEpoch = 1<<64 - 1
-	minimalConfig.FarFutureSlot = 1<<64 - 1
+	minimalConfig.FarFutureEpoch = math.MaxUint64
+	minimalConfig.FarFutureSlot = math.MaxUint64
 
 	// New Altair params
 	minimalConfig.AltairForkVersion = []byte{1, 0, 0, 1} // Highest byte set to 0x01 to avoid collisions with mainnet versioning

time/slots/slottime_test.go

@@ -416,8 +416,8 @@ func TestPrevSlot(t *testing.T) {
 		},
 		{
 			name: "max",
-			slot: 1<<64 - 1,
-			want: 1<<64 - 1 - 1,
+			slot: math.MaxUint64,
+			want: math.MaxUint64 - 1,
 		},
 	}
 	for _, tt := range tests {