declareState
function declareState<T>(SmartContract: T, states: Record<string, FlexibleProvablePure<any>>): void
declareState
can be used in place of the @state
decorator to declare on-chain state on a SmartContract.
It should be placed after the class declaration.
Here is an example of declaring a state property x
of type Field
.
class MyContract extends SmartContract {
x = State<Field>();
// ...
}
declareState(MyContract, { x: Field });
If you're using pure JS, it's not possible to use the built-in class field syntax, i.e. the following will not work:
// THIS IS WRONG IN JS!
class MyContract extends SmartContract {
x = State();
}
declareState(MyContract, { x: Field });
Instead, add a constructor where you assign the property:
class MyContract extends SmartContract {
constructor(x) {
super();
this.x = State();
}
}
declareState(MyContract, { x: Field });
Type parameters
• T extends typeof SmartContract
Parameters
• SmartContract: T
• states: Record
\<string
, FlexibleProvablePure
\<any
>>
Returns
void