move-to-ts

From your package directory, run these:

aptos move compile          # need this to fetch dependencies
move-to-ts                  # this creates a typescript folder under build, with all the transpiled ts files

A Move-to-TypeScript transpiler & emulator. Everything seems to work now. We have a testsuite that aggregates 347 unit tests from these Move packages:

• AptosFramework
• HippoSwap
• TokenRegistry
• Econia

We are only failing 6 out of 347 test cases. All 6 failures are due to unimplemented hashing and signature-verification native functions. We are continuously adding more tests and packages to the testsuite so as to stress test our transpiler.

Tests:       6 failed, 347 passed, 353 total

To run the testsuite:

cd move-testsuite
aptos move compile                                      # fetch dependencies
move-to-ts --test --pakcage-json-name myPackageName     # build tests and the full ts package
cd build/typescript
yarn install                                            # install dependencies
yarn build
yarn test                                               # run all unit tests with jest

Why?

Automatically translate Move code to TypeScript. So that:

• swap frontends and arb bots can generate quotes using exactly the same pricing logic as its Move contract
• liquidation bots can evaluate whether an account is open for liquidation using exactly the same logic as contract

Above are two very specific use cases. In a more abstract sense, move-to-ts wants to increase the portability of Move code and increase the productivity of Move developers.

A side benefit of having an emulator, of course, is that we can also debug Move code in a JS environment (since we are currently missing a native Move debugger).

Long-term objectives

Turn this into a development framework similar to Truffle/Anchor, and provide direct support for

• frontend wallet integration
• off-chain data integration
• automated TypeScript SDK generation
• automated bot script generation
• automated experimental UI generation

Experimental objectives:

• Generate programmer-guided, informal proof-of-correctness

Example

Check this file to see what Coin.move is transpiled to.