i want to add pallet-contract in my project , it show me error when run this command : cargo check
Error :
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:190:4
|
190 | let Ok(end) = args.end.base10_parse::<u32>() else { return invalid_param(args.end.span()) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:189:4
|
189 | let Ok(start) = args.start.base10_parse::<u32>() else { return invalid_param(args.start.span()) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:188:4
|
188 | let Ok(args) = syn::parse::<RangeArgs>(args) else { return invalid_param(typ.span()) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:186:4
|
186 | let Some(segment) = tpath.path.segments.last() else { return invalid_param(typ.span()) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:185:4
|
185 | let Type::Path(tpath) = typ else { return invalid_param(typ.span()) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:178:4
|
178 | let Some(name_char) = name.chars().next() else { return invalid_param_name() };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:164:4
|
164 | let Pat::Ident(ident) = &*arg.pat else { return invalid_param(arg.span()) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:163:4
|
163 | let FnArg::Typed(arg) = arg else { return invalid_param(arg.span()) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:215:6
|
215 | / let Some(origin) = expr_call.args.first().cloned() else {
216 | | return Some(Err(Error::new(expr_call.span(), "Single-item extrinsic calls must specify their origin as th...
217 | | };
| |______________________^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:293:3
|
293 | let Item::Fn(func) = stmt else { return None };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:681:6
|
681 | let Some(segment) = expr_path.path.segments.last() else { return call_err(); };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
error[E0658]: `let...else` statements are unstable
--> /home/kianoush/.cargo/git/checkouts/substrate-7e08433d4c370a21/52d72b3/frame/support/procedural/src/benchmark.rs:687:6
|
687 | let Ok(_) = syn::parse::<Token![_]>(tokens.to_token_stream().into()) else { return call_err(); };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
= help: add `#![feature(let_else)]` to the crate attributes to enable
For more information about this error, try `rustc --explain E0658`.
error: could not compile `frame-support-procedural` due to 12 previous errors
warning: build failed, waiting for other jobs to finish...
i did these steps :
Step One : Add Depency Pallets
pallet-contracts = { version = "4.0.0-dev", default-features = false, git = "https://github.com/paritytech/substrate.git", " branch" = "polkadot-v0.9.35" }
pallet-contracts-primitives = { version = "7.0.0", default-features = false, git = "https://github.com/paritytech/substrate.git", " branch" = "polkadot-v0.9.35" }
Step Two : Add Pallets Config
parameter_types! {
pub TombstoneDeposit: Balance = deposit(
1,
<pallet_contracts::Pallet<Runtime>>::contract_info_size()
);
pub DepositPerContract: Balance = TombstoneDeposit::get();
pub const DepositPerStorageByte: Balance = deposit(0, 1);
pub const DepositPerStorageItem: Balance = deposit(1, 0);
pub RentFraction: Perbill = Perbill::from_rational(1u32, 30 * DAYS);
pub const SurchargeReward: Balance = 150 * MILLICENTS;
pub const SignedClaimHandicap: u32 = 2;
pub const MaxValueSize: u32 = 16 * 1024;
// The lazy deletion runs inside on_initialize.
pub DeletionWeightLimit: Weight = AVERAGE_ON_INITIALIZE_RATIO *
BlockWeights::get().max_block;
// The weight needed for decoding the queue should be less or equal than a fifth
// of the overall weight dedicated to the lazy deletion.
pub DeletionQueueDepth: u32 = ((DeletionWeightLimit::get() / (
<Runtime as pallet_contracts::Config>::WeightInfo::on_initialize_per_queue_item(1) -
<Runtime as pallet_contracts::Config>::WeightInfo::on_initialize_per_queue_item(0)
)) / 5) as u32;
pub Schedule: pallet_contracts::Schedule<Runtime> = Default::default();
}
impl pallet_contracts::Config for Runtime {
type Time = Timestamp;
type Randomness = RandomnessCollectiveFlip;
type Currency = Balances;
type Event = Event;
type RentPayment = ();
type SignedClaimHandicap = SignedClaimHandicap;
type TombstoneDeposit = TombstoneDeposit;
type DepositPerContract = DepositPerContract;
type DepositPerStorageByte = DepositPerStorageByte;
type DepositPerStorageItem = DepositPerStorageItem;
type RentFraction = RentFraction;
type SurchargeReward = SurchargeReward;
type WeightPrice = pallet_transaction_payment::Module<Self>;
type WeightInfo = pallet_contracts::weights::SubstrateWeight<Self>;
type ChainExtension = ();
type DeletionQueueDepth = DeletionQueueDepth;
type DeletionWeightLimit = DeletionWeightLimit;
type Call = Call;
/// The safest default is to allow no calls at all.
///
/// Runtimes should whitelist dispatchables that are allowed to be called from contracts
/// and make sure they are stable. Dispatchables exposed to contracts are not allowed to
/// change because that would break already deployed contracts. The `Call` structure itself
/// is not allowed to change the indices of existing pallets, too.
type CallFilter = Nothing;
type Schedule = Schedule;
type CallStack = [pallet_contracts::Frame<Self>; 31];
}
whats the problem ? how can i solve this problem ?
