Struct near_sdk::VMContext

pub struct VMContext {

    pub current_account_id: AccountId,
    pub signer_account_id: AccountId,
    pub signer_account_pk: PublicKey,
    pub predecessor_account_id: AccountId,
    pub input: Vec<u8>,
    pub block_index: BlockHeight,
    pub block_timestamp: u64,
    pub epoch_height: EpochHeight,
    pub account_balance: Balance,
    pub account_locked_balance: Balance,
    pub storage_usage: StorageUsage,
    pub attached_deposit: Balance,
    pub prepaid_gas: Gas,
    pub random_seed: [u8; 32],
    pub view_config: Option<ViewConfig>,
    pub output_data_receivers: Vec<AccountId>,
}

Context for the contract execution.

Fields

current_account_id: AccountId

The account id of the current contract that we are executing.

signer_account_id: AccountId

The account id of that signed the original transaction that led to this execution.

signer_account_pk: PublicKey

The public key that was used to sign the original transaction that led to this execution.

predecessor_account_id: AccountId

If this execution is the result of cross-contract call or a callback then predecessor is the account that called it. If this execution is the result of direct execution of transaction then it is equal to signer_account_id.

input: Vec<u8>

The input to the contract call. Encoded as base64 string to be able to pass input in borsh binary format.

block_index: BlockHeight

The current block height.

block_timestamp: u64

The current block timestamp (number of non-leap-nanoseconds since January 1, 1970 0:00:00 UTC).

epoch_height: EpochHeight

The current epoch height.

account_balance: Balance

The balance attached to the given account. Excludes the attached_deposit that was attached to the transaction.

account_locked_balance: Balance

The balance of locked tokens on the given account.

storage_usage: StorageUsage

The account’s storage usage before the contract execution

attached_deposit: Balance

The balance that was attached to the call that will be immediately deposited before the contract execution starts.

prepaid_gas: Gas

The gas attached to the call that can be used to pay for the gas fees.

random_seed: [u8; 32]

Initial seed for randomness

view_config: Option<ViewConfig>

If Some, it means that execution is made in a view mode and defines its configuration. View mode means that only read-only operations are allowed. See https://nomicon.io/Proposals/0018-view-change-method.html for more details.

output_data_receivers: Vec<AccountId>

How many DataReceipt’s should receive this execution result. This should be empty if this function call is a part of a batch and it is not the last action.

Implementations

impl VMContext

pub fn is_view(&self) -> bool

Trait Implementations

impl Clone for VMContext

fn clone(&self) -> VMContext

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.