AVM Operations

Algorand TypeScript allows you to express every op code the AVM has available, excluding those that manipulate the stack or control execution, as these would interfere with the compiler. These are all exported from the ops module. It is possible to import ops individually or via the entire namespace.

// Import op from module root
import { assert, Contract, op } from '@algorandfoundation/algorand-typescript';
// Import whole module from ./op
import * as op2 from '@algorandfoundation/algorand-typescript/op';
// Import individual ops
import { bzero } from '@algorandfoundation/algorand-typescript/op';

class MyContract extends Contract {
  test() {
    const a = bzero(8).bitwiseInvert();
    const b = op2.btoi(a);
    assert(b === 2 ** 64 - 1);

    const c = op.shr(b, 32);

    assert(c === 2 ** 32 - 1);
  }
}

Txn, Global, and other Enums

Many of the AVM ops that take an enum argument have been abstracted into a static type with a property or function per enum member.

import { Contract, Global, log, Txn } from '@algorandfoundation/algorand-typescript';
import { AppParams } from '@algorandfoundation/algorand-typescript/op';

class MyContract extends Contract {
  test() {
    log(Txn.sender);
    log(Txn.applicationArgs(0));
    log(Global.groupId);
    log(Global.creatorAddress);
    log(...AppParams.appAddress(123));
  }
}