TryDecodeEntireState check for storage types and pallets (#1805)
### This PR is a port of this [PR for substrate](https://github.com/paritytech/substrate/pull/13013) by @Kianenigma Add infrastructure needed to have a Pallet::decode_entire_state(), which makes sure all "typed" storage items defined in the pallet are decode-able. This is not enforced in any way at the moment. Teams who wish to integrate/use this in the try-runtime feature flag should add frame_support::storage::migration::EnsureStateDecodes as the LAST ITEM of the runtime's custom migrations, and pass it to frame-executive. This will make it usable in try-runtime on-runtime-upgrade. This now catches cases like https://github.com/paritytech/polkadot-sdk/pull/1969: ```pre ERROR runtime::executive] failed to decode the value at key: Failed to decode value at key: 0x94eadf0156a8ad5156507773d0471e4ab8ebad86f546c7e0b135a4212aace339. Storage info StorageInfo { pallet_name: Ok("ParaScheduler"), storage_name: Ok("AvailabilityCores"), prefix: Err(Utf8Error { valid_up_to: 0, error_len: Some(1) }), max_values: Some(1), max_size: None }. Raw value: Some("0x0c010101010101") ``` ... or: ![image](https://github.com/paritytech/polkadot-sdk/assets/10380170/73052d4f-4da5-4b21-a8dd-b17004e5965e) Closes #241 --------- Signed-off-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: Liam Aharon <[email protected]>
Please register or sign in to comment