From bd9b4abb1591c8bd535ff85f15fd527f61966028 Mon Sep 17 00:00:00 2001
From: Marian Vanderka <vanderka.marian@gmail.com>
Date: Thu, 12 Oct 2023 22:48:59 +0200
Subject: [PATCH] add support for u128 & U256 conversion to/from balance

---
 tokens/Cargo.toml | 2 +-
 tokens/src/lib.rs | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/tokens/Cargo.toml b/tokens/Cargo.toml
index acebe6e55..011fc091c 100644
--- a/tokens/Cargo.toml
+++ b/tokens/Cargo.toml
@@ -16,6 +16,7 @@ serde = { version = "1.0.136", optional = true }
 frame-support = { git = "https://github.com/mangata-finance/polkadot-sdk", default-features = false , branch = "develop" }
 frame-system = { git = "https://github.com/mangata-finance/polkadot-sdk", default-features = false , branch = "develop" }
 sp-arithmetic = { git = "https://github.com/mangata-finance/polkadot-sdk", default-features = false , branch = "develop" }
+sp-core = { git = "https://github.com/mangata-finance/polkadot-sdk", default-features = false, branch = "develop" }
 sp-runtime = { git = "https://github.com/mangata-finance/polkadot-sdk", default-features = false , branch = "develop" }
 sp-std = { git = "https://github.com/mangata-finance/polkadot-sdk", default-features = false , branch = "develop" }
 frame-benchmarking = {  git = "https://github.com/mangata-finance/polkadot-sdk", branch = "develop", default-features = false, optional = true }
@@ -25,7 +26,6 @@ orml-traits = { path = "../traits", version = "0.4.1-dev", default-features = fa
 [dev-dependencies]
 pallet-elections-phragmen = { git = "https://github.com/mangata-finance/polkadot-sdk", branch = "develop" }
 pallet-treasury = { git = "https://github.com/mangata-finance/polkadot-sdk", branch = "develop" }
-sp-core = { git = "https://github.com/mangata-finance/polkadot-sdk", branch = "develop" }
 sp-io = { git = "https://github.com/mangata-finance/polkadot-sdk", branch = "develop" }
 sp-staking = { git = "https://github.com/mangata-finance/polkadot-sdk", branch = "develop" }
 
diff --git a/tokens/src/lib.rs b/tokens/src/lib.rs
index e61ff858e..5422fc2da 100644
--- a/tokens/src/lib.rs
+++ b/tokens/src/lib.rs
@@ -59,6 +59,7 @@ use frame_support::{
 };
 use frame_system::{ensure_root, ensure_signed, pallet_prelude::*};
 use scale_info::TypeInfo;
+use sp_core::U256;
 use sp_runtime::{
 	traits::{
 		AtLeast32BitUnsigned, Bounded, CheckedAdd, CheckedSub, MaybeSerializeDeserialize, Member, One, Saturating,
@@ -199,6 +200,8 @@ pub mod module {
 		type RuntimeEvent: From<Event<Self>> + IsType<<Self as frame_system::Config>::RuntimeEvent>;
 
 		/// The balance type
+		/// use Into<128> to supportd current impl of mangata-node pallets which
+		/// rely on U256::from(value: u128) for arithemtics
 		type Balance: Parameter
 			+ Member
 			+ AtLeast32BitUnsigned
@@ -207,7 +210,9 @@ pub mod module {
 			+ MaybeSerializeDeserialize
 			+ MaxEncodedLen
 			+ TypeInfo
-			+ FixedPointOperand;
+			+ FixedPointOperand
+			+ Into<u128>
+			+ TryFrom<U256>;
 
 		/// The amount type, should be signed version of `Balance`
 		type Amount: Signed