From 2d3d52e3d00a63c1d80f67405669c3a0309ba1a3 Mon Sep 17 00:00:00 2001
From: Anna Shaleva <shaleva.ann@nspcc.ru>
Date: Tue, 9 Apr 2024 14:38:18 +0300
Subject: [PATCH] native: add nativehashes package

Similar to nativenames, instantiate once and then reuse everywhere.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
---
 pkg/core/native/nativehashes/hashes.go | 34 ++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 pkg/core/native/nativehashes/hashes.go

diff --git a/pkg/core/native/nativehashes/hashes.go b/pkg/core/native/nativehashes/hashes.go
new file mode 100644
index 000000000..646da8368
--- /dev/null
+++ b/pkg/core/native/nativehashes/hashes.go
@@ -0,0 +1,34 @@
+package nativehashes
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+)
+
+// Hashes of all native contracts.
+var (
+	Management  util.Uint160
+	Ledger      util.Uint160
+	Neo         util.Uint160
+	Gas         util.Uint160
+	Policy      util.Uint160
+	Oracle      util.Uint160
+	Designation util.Uint160
+	Notary      util.Uint160
+	CryptoLib   util.Uint160
+	StdLib      util.Uint160
+)
+
+func init() {
+	Management = state.CreateNativeContractHash(nativenames.Management)
+	Ledger = state.CreateNativeContractHash(nativenames.Ledger)
+	Neo = state.CreateNativeContractHash(nativenames.Neo)
+	Gas = state.CreateNativeContractHash(nativenames.Gas)
+	Policy = state.CreateNativeContractHash(nativenames.Policy)
+	Oracle = state.CreateNativeContractHash(nativenames.Oracle)
+	Designation = state.CreateNativeContractHash(nativenames.Designation)
+	Notary = state.CreateNativeContractHash(nativenames.Notary)
+	CryptoLib = state.CreateNativeContractHash(nativenames.CryptoLib)
+	StdLib = state.CreateNativeContractHash(nativenames.StdLib)
+}