Function pallet_gear::pallet::dispatchables::upload_code

pub fn upload_code<T: Config>(code: Vec<u8>)

Saves program code in storage.

The extrinsic was created to provide deploy program from program functionality. Anyone who wants to define a “factory” logic in program should first store the code and metadata for the “child” program in storage. So the code for the child will be initialized by program initialization request only if it exists in storage.

More precisely, the code and its metadata are actually saved in the storage under the hash of the code. The code hash is computed as Blake256 hash. At the time of the call the code hash should not be in the storage. If it was stored previously, call will end up with an CodeAlreadyExists error. In this case user can be sure, that he can actually use the hash of his program’s code bytes to define “program factory” logic in his program.

Parameters

• code: wasm code of a program as a byte vector.

Emits the following events:

• SavedCode(H256) - when the code is saved in storage.

Warning: Doc-Only

This function is an automatically generated, and is doc-only, uncallable stub. See the real version in Pallet::upload_code.