Add ProofLimit parameter to prevent proof size being too large

frame/atomic-swap/src/lib.rs

@@ -26,7 +26,7 @@ use sp_std::prelude::*;
 use sp_io::hashing::blake2_256;
 use frame_support::{
  decl_module, decl_storage, decl_event, decl_error, ensure,
- traits::{Currency, ReservableCurrency, BalanceStatus},
+ traits::{Get, Currency, ReservableCurrency, BalanceStatus},
 };
 use frame_system::{self as system, ensure_signed};
 use codec::{Encode, Decode};
@@ -64,6 +64,8 @@ pub trait Trait: frame_system::Trait {
  type Event: From<Event<Self>> + Into<<Self as frame_system::Trait>::Event>;
  /// The currency mechanism.
  type Currency: ReservableCurrency<Self::AccountId>;
+ /// Limit of proof size.
+ type ProofLimit: Get<u32>;
 }
 
 decl_storage! {

frame/atomic-swap/src/tests.rs

@@ -28,6 +28,7 @@ parameter_types! {
  pub const MaximumBlockWeight: Weight = 1024;
  pub const MaximumBlockLength: u32 = 2 * 1024;
  pub const AvailableBlockRatio: Perbill = Perbill::one();
+ pub const ProofLimit: u32 = 1024;
 }
 impl frame_system::Trait for Test {
  type Origin = Origin;
@@ -67,6 +68,7 @@ impl pallet_balances::Trait for Test {
 impl Trait for Test {
  type Event = ();
  type Currency = Balances;
+ type ProofLimit = ProofLimit;
 }
 type System = frame_system::Module<Test>;
 type Balances = pallet_balances::Module<Test>;