From d68dca6fb30912c1897c2833b3f2fcd2146e1d48 Mon Sep 17 00:00:00 2001
From: Jennifer Wang <jiayingw703@gmail.com>
Date: Tue, 6 Aug 2024 12:58:12 -0400
Subject: [PATCH] add datacap balance to circ supply

---
 chain/actors/builtin/builtin.go | 10 ++++++++++
 chain/stmgr/supply.go           |  3 ++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/chain/actors/builtin/builtin.go b/chain/actors/builtin/builtin.go
index 4516683a85c..72b96d9c1e7 100644
--- a/chain/actors/builtin/builtin.go
+++ b/chain/actors/builtin/builtin.go
@@ -28,6 +28,7 @@ var SystemActorAddr = builtin.SystemActorAddr
 var BurntFundsActorAddr = builtin.BurntFundsActorAddr
 var CronActorAddr = builtin.CronActorAddr
 var EthereumAddressManagerActorAddr = builtin.EthereumAddressManagerActorAddr
+var DatacapActorAddr = builtin.DatacapActorAddr
 var SaftAddress = makeAddress("t0122")
 var ReserveAddress = makeAddress("t090")
 var RootVerifierAddress = makeAddress("t080")
@@ -276,6 +277,15 @@ func IsPaymentChannelActor(c cid.Cid) bool {
 	return false
 }
 
+func IsDatacapActor(c cid.Cid) bool {
+	name, _, ok := actors.GetActorMetaByCode(c)
+	if ok {
+		return name == manifest.DatacapKey
+	}
+
+	return false
+}
+
 func IsPlaceholderActor(c cid.Cid) bool {
 	name, _, ok := actors.GetActorMetaByCode(c)
 	if ok {
diff --git a/chain/stmgr/supply.go b/chain/stmgr/supply.go
index 48e713c28d8..4bc42d57952 100644
--- a/chain/stmgr/supply.go
+++ b/chain/stmgr/supply.go
@@ -443,7 +443,8 @@ func (sm *StateManager) GetCirculatingSupply(ctx context.Context, height abi.Cha
 			builtin.IsPaymentChannelActor(actor.Code) ||
 			builtin.IsEthAccountActor(actor.Code) ||
 			builtin.IsEvmActor(actor.Code) ||
-			builtin.IsPlaceholderActor(actor.Code):
+			builtin.IsPlaceholderActor(actor.Code) ||
+			builtin.IsDatacapActor(actor.Code):
 
 			circ = big.Add(circ, actor.Balance)