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gupnik
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Moved from https://github.com/paritytech/substrate/pull/14788 ---- Fixes https://github.com/paritytech/polkadot-sdk/issues/232 This PR introduces outer-macro approach for `construct_runtime` as discussed in the linked issue. It looks like the following: ```rust #[frame_support::runtime] mod runtime { #[runtime::runtime] #[runtime::derive( RuntimeCall, RuntimeEvent, RuntimeError, RuntimeOrigin, RuntimeFreezeReason, RuntimeHoldReason, RuntimeSlashReason, RuntimeLockId, RuntimeTask, )] pub struct Runtime; #[runtime::pallet_index(0)] pub type System = frame_system; #[runtime::pallet_index(1)] pub type Timestamp = pallet_timestamp; #[runtime::pallet_index(2)] pub type Aura = pallet_aura; #[runtime::pallet_index(3)] pub type Grandpa = pallet_grandpa; #[runtime::pallet_index(4)] pub type Balances = pallet_balances; #[runtime::pallet_index(5)] pub type TransactionPayment = pallet_transaction_payment; #[runtime::pallet_index(6)] pub type Sudo = pallet_sudo; // Include the custom logic from the pallet-template in the runtime. #[runtime::pallet_index(7)] pub type TemplateModule = pallet_template; } ``` ## Features - `#[runtime::runtime]` attached to a struct defines the main runtime - `#[runtime::derive]` attached to this struct defines the types generated by runtime - `#[runtime::pallet_index]` must be attached to a pallet to define its index - `#[runtime::disable_call]` can be optionally attached to a pallet to disable its calls - `#[runtime::disable_unsigned]` can be optionally attached to a pallet to disable unsigned calls - A pallet instance can be defined as `TemplateModule: pallet_template<Instance>` - An optional attribute can be defined as `#[frame_support::runtime(legacy_ordering)]` to ensure that the order of hooks is same as the order of pallets (and not based on the pallet_index). This is to support legacy runtimes and should be avoided for new ones. ## Todo - [x] Update the latest syntax in kitchensink and tests - [x] Update UI tests - [x] Docs ## Extension - Abstract away the Executive similar to https://github.com/paritytech/substrate/pull/14742 - Optionally avoid the need to specify all runtime types (TBD) --------- Co-authored-by: Francisco Aguirre <franciscoaguirreperez@gmail.com> Co-authored-by: Nikhil Gupta <>
FRAME
The FRAME development environment provides modules (called "pallets") and support libraries that you can use, modify, and extend to build the runtime logic to suit the needs of your blockchain.
Documentation
https://docs.substrate.io/reference/frame-pallets/