Trait elrond_wasm::api::BlockchainApi[−][src]

pub trait BlockchainApi: StorageReadApi + ErrorApi + Clone + Sized + 'static {
    type BalanceType: BigUintApi + 'static;
Show methods
    fn get_sc_address(&self) -> Address;
    fn get_owner_address(&self) -> Address;
    fn get_shard_of_address(&self, address: &Address) -> u32;
    fn is_smart_contract(&self, address: &Address) -> bool;
    fn get_caller(&self) -> Address;
    fn get_balance(&self, address: &Address) -> Self::BalanceType;
    fn get_tx_hash(&self) -> H256;
    fn get_gas_left(&self) -> u64;
    fn get_block_timestamp(&self) -> u64;
    fn get_block_nonce(&self) -> u64;
    fn get_block_round(&self) -> u64;
    fn get_block_epoch(&self) -> u64;
    fn get_block_random_seed(&self) -> Box<[u8; 48]>ⓘNotable traits for Box<F, A>
impl<F, A> Future for Box<F, A> where
    A: Allocator + 'static,
    F: Future + Unpin + ?Sized,     type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
    A: Allocator,
    I: Iterator + ?Sized,     type Item = <I as Iterator>::Item;;
    fn get_prev_block_timestamp(&self) -> u64;
    fn get_prev_block_nonce(&self) -> u64;
    fn get_prev_block_round(&self) -> u64;
    fn get_prev_block_epoch(&self) -> u64;
    fn get_prev_block_random_seed(&self) -> Box<[u8; 48]>ⓘNotable traits for Box<F, A>
impl<F, A> Future for Box<F, A> where
    A: Allocator + 'static,
    F: Future + Unpin + ?Sized,     type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
    A: Allocator,
    I: Iterator + ?Sized,     type Item = <I as Iterator>::Item;;
    fn get_current_esdt_nft_nonce(&self, address: &Address, token: &[u8]) -> u64;
    fn get_esdt_balance(
        &self, 
        address: &Address, 
        token: &[u8], 
        nonce: u64
    ) -> Self::BalanceType;
    fn get_esdt_token_data(
        &self, 
        address: &Address, 
        token: &[u8], 
        nonce: u64
    ) -> EsdtTokenData<Self::BalanceType>;

    fn get_sc_balance(&self) -> Self::BalanceType { ... }
    fn get_cumulated_validator_rewards(&self) -> Self::BalanceType { ... }
    fn get_esdt_local_roles(&self, token_id: &[u8]) -> Vec<EsdtLocalRole> { ... }
}

Expand description

Interface to be used by the actual smart contract code.

Note: contracts and the api are not mutable. They simply pass on/retrieve data to/from the protocol. When mocking the blockchain state, we use the Rc/RefCell pattern to isolate mock state mutability from the contract interface.