Function sp_io::misc::runtime_version

pub fn runtime_version(wasm: &[u8]) -> Option<Vec<u8>>

Extract the runtime version of the given wasm blob by calling Core_version.

Returns None if calling the function failed for any reason or Some(Vec<u8>) where the Vec<u8> holds the SCALE encoded runtime version.

Performance

Calling this function is very expensive and should only be done very occasionally. For getting the runtime version, it requires instantiating the wasm blob and calling a function in this blob.