Function ink_env::call::build_create

pub fn build_create<E, R>(
) -> CreateBuilder<E, Unset<E::Hash>, Unset<u64>, Unset<E::Balance>, Unset<ExecutionInput<EmptyArgumentList>>, Unset<Salt>, R> where
    E: Environment,
    R: FromAccountId<E>, 

Returns a new CreateBuilder to build up the parameters to a cross-contract instantiation.

Example

The below example shows instantiation of contract of type MyContract.

The used constructor:

• has a selector equal to 0xDEADBEEF
• is provided with 4000 units of gas for its execution
• is provided with 25 units of transferred value for the new contract instance
• receives the following arguments in order
  1. an i32 with value 42
  2. a bool with value true
  3. an array of 32 u8 with value 0x10

let my_contract: MyContract = build_create::<DefaultEnvironment, MyContract>()
    .code_hash(Hash::from([0x42; 32]))
    .gas_limit(4000)
    .endowment(25)
    .exec_input(
        ExecutionInput::new(Selector::new([0xDE, 0xAD, 0xBE, 0xEF]))
            .push_arg(42)
            .push_arg(true)
            .push_arg(&[0x10u8; 32])
    )
    .salt_bytes(&[0xDE, 0xAD, 0xBE, 0xEF])
    .params()
    .instantiate()
    .unwrap();

Note: The shown example panics because there is currently no cross-calling support in the off-chain testing environment. However, this code should work fine in on-chain environments.