Function sc_executor::call_in_wasm

pub fn call_in_wasm<HF: HostFunctions>(
    function: &str, 
    call_data: &[u8], 
    execution_method: WasmExecutionMethod, 
    ext: &mut dyn Externalities, 
    code: &[u8], 
    heap_pages: u64, 
    allow_missing_func_imports: bool
) -> Result<Vec<u8>>

Call the given function in the given wasm code.

The signature of function needs to follow the default Substrate function signature.

• call_data: Will be given as input parameters to function
• execution_method: The execution method to use.
• ext: The externalities that should be set while executing the wasm function. If None is given, no externalities will be set.
• heap_pages: The number of heap pages to allocate.

Returns the Vec<u8> that contains the return value of the function.