Bamboo is a programming language for Ethereum contracts. Bamboo makes state transition explicit and avoids reentrance problems by default. See manifest for the motivation, or tutorial if you want to deploy something first, or semantics if you need something resembling a definition.
The Bamboo compiler sometimes produces bytecode, which needs to be tested.
As preparation,
- install opam with OCaml 4.04.1
opam install bambooshould installbamboo.
When you check out this repository,
bamboo < src/parse/examples/006auction_first_case.bbo
produces a bytecode. Do not trust the output as the compiler still contains bugs probably.
bamboo --abi < src/parse/examples/006auction_first_case.bbo
prints ABI.
[{"type": "constructor", "inputs":[{"name": "_beneficiary", "type": "address"},{"name": "_bidding_time", "type": "uint256"},{"name": "_highest_bid", "type": "uint256"}], "name": "auction", "outputs":[], "payable": true},{"type":"fallback","inputs": [],"outputs": [],"payable": true}]
To try Bamboo in your local environment, run make dep from the project folder. That should install all dependencies.
Once the installation process is done, run eval $(opam config env) and then you can build all targets using make, and run the tests with make test.
When you modify the OCaml source of Bamboo, you can try your version by
$ make
$ ./lib/bs/native/bamboo.native < src/parse/examples/006auction_first_case.bbo
- notice problems and point them out. create issues.
- test the bytecode like this, but using other examples. You might find bugs in the compiler.
- write new Bamboo code and test the compiler.
- join the Gitter channel.
- spread a rumor to your friends who are into programming languages.
Linden Scripting Language has similar organization of code according to states.
Obsidian is another programming language that models smart contracts as state machines. Obsidian even tracks states of the contracts statically.