Commit Graph

7473 Commits

Author SHA1 Message Date
Mike Hearn
766040da57 Documentation HTML build 2015-11-25 18:01:38 +01:00
Mike Hearn
3dd10714df Introduce documentation of the current prototype with a contract programming tutorial (incomplete), using the Sphinx docs engine.
Actual generated HTML will follow in the next commit.
2015-11-25 18:01:37 +01:00
Mike Hearn
ff05cb4a4c Contract: rewrite and finish off tests for commercial paper, using improved test DSL 2015-11-25 17:40:27 +01:00
Mike Hearn
c026e90067 Contracts: JavaCommercialPaper should implement equals/hashCode on its version of the state class and use the same grouping logic as the Kotlin version. 2015-11-25 14:26:17 +01:00
Mike Hearn
5285d3bb47 Minor: define contracts as regular classes instead of using the kotlin singleton syntax 2015-11-24 15:22:19 +01:00
Mike Hearn
af4aa3dedc Minor: remove funktionale from build.gradle, it's unused 2015-11-24 15:21:59 +01:00
Mike Hearn
564fce7e99 Minor: set Java 8 as a requirement in gradle build file 2015-11-23 13:13:46 +01:00
Mike Hearn
5c1e4a0e35 Minor: fix kdoc in Structures.kt, spotted by Richard 2015-11-23 11:53:31 +01:00
Richard G Brown
fa32935e77 legalContractRef changed String to SecureHash (of contract contents) 2015-11-23 10:59:28 +01:00
Mike Hearn
25a28a0a28 Minor: suppress unused parameter warnings in TestUtils 2015-11-21 13:17:05 +01:00
Mike Hearn
92c92db33d Minor: bump Dokka version to fix build 2015-11-21 13:14:53 +01:00
Mike Hearn
b0b8c74c25 Minor: move the groupBy method to TransactionForVerification where it belongs. 2015-11-20 19:36:20 +01:00
Mike Hearn
a8e34a2bb2 Contracts API: move the notion of grouping into a utility file, and modify the commercial paper contract (java+kotlin) to use it.
This resolves several open TODO list items around the composability of contracts.

The current CP tests pass, but they aren't complete, so this doesn't prove the changes are correct. That'll come soon.
2015-11-20 19:25:15 +01:00
Mike Hearn
d6cfa9b9ef Cash: refactor to allow multi-currency swaps by introducing a notion of grouping. 2015-11-20 18:19:24 +01:00
Mike Hearn
9681f97502 Minor: add a unit test to verify that duplicated inputs are forbidden (conflict) and delete the TODO for it. 2015-11-19 13:09:46 +01:00
Mike Hearn
7f13b8ab4a Minor: a few misc cleanups 2015-11-19 11:56:07 +01:00
Mike Hearn
a4aef06e41 Major: introduce TransactionGroup for verifying subgraphs. 2015-11-18 19:22:31 +01:00
Mike Hearn
636279ced9 Minor: test dsl, rename recursive transaction method to 'tweak' to better describe what it does. 2015-11-18 13:45:04 +01:00
Mike Hearn
03ddf454c7 Minor: make LedgerTransaction keep track of the hash of the original serialised tx 2015-11-18 13:35:24 +01:00
Mike Hearn
f0557e106d Minor: reorganise the test directory to match the src directory 2015-11-18 13:29:18 +01:00
Mike Hearn
508ce2819f Minor: fix wording in Cash contract, suggestion from Richard. 2015-11-17 16:29:42 +01:00
Mike Hearn
fa1c6cb01b Minor: Rename args to commands for consistency 2015-11-17 13:08:18 +01:00
Mike Hearn
5e604a5b0a Minor: fix bug in JavaCommercialPaper 2015-11-16 21:01:38 +01:00
Mike Hearn
28bd2053cc Contracts: add an issue crafting function to the cash contract. 2015-11-16 20:50:31 +01:00
Mike Hearn
aecc1de0cf Contracts: make the Cash craftSpend/generate function update a mutable transaction instead of returning a unit test structure.
Tests: move TestUtils into the test package now the cash contract generate function works the right way.

Transactions: various refactorings to support partially signed transactions.
2015-11-16 20:36:27 +01:00
Mike Hearn
1f17053263 Introduce a PartialTransaction class to represent a mutable transaction that we're in the process of building/signing. 2015-11-16 20:08:45 +01:00
Mike Hearn
853b37a6e1 Cash: add a notion of state construction based on Richard's suggestion of a nonce+simply checking the output states are for deposits owned by the signer. No genesis tx is used. 2015-11-16 19:29:11 +01:00
Mike Hearn
5f30684805 Minor: add a kdoc to the select function. 2015-11-16 19:27:39 +01:00
Mike Hearn
0aa643d4c2 Minor: note to self, remember to check for duplicated inputs when converting LedgerTransaction into TransactionForVerification 2015-11-16 19:26:43 +01:00
Mike Hearn
2c27a07c8b Minor: OpaqueBytes should never be empty. May catch certain types of simple mistake. 2015-11-16 19:23:50 +01:00
Mike Hearn
6c66eee712 Kotlin Beta 2 2015-11-16 19:23:50 +01:00
Mike Hearn
e3e674658d Contracts: check in a demo of how to implement a simple contract in Java. 2015-11-16 13:30:53 +01:00
Mike Hearn
d1a605de6f Contracts: Rename ComedyPaper to CommercialPaper and rewrite the comment at the top to flag its not-realistic status. 2015-11-16 12:42:16 +01:00
Mike Hearn
379d531cf0 Minor: fix failing test 2015-11-16 12:29:36 +01:00
Mike Hearn
2d58453225 Minor: add Dokka as an api doc generator tool. It's still kind of rough and needs a stylesheet to be supplied manually. 2015-11-16 12:16:37 +01:00
Mike Hearn
dad59d116c Major: Integrate serialisation everywhere, implement basic signing/sig checking code.
Currently the serialised forms and the form fed into the contract aren't quite joined up, because on disk/network a transaction is serialised with input references i.e. (txhash, output index) pairs, but the contract wants to see all input states in fully loaded form. To do that, we need some notion of a database of transactions.
2015-11-13 23:12:39 +01:00
Mike Hearn
162b830bcd Add some serialization utilities and tests, using Kryo. 2015-11-13 20:38:29 +01:00
Mike Hearn
5b4969d366 Minor: make commands singletons when they contain no data and are purely type system markers.
This may not be really compatible with sandboxing, later on. But we can always change it back if not.
2015-11-13 14:43:59 +01:00
Mike Hearn
1b44081880 Minor: tweak the cash/amount API 2015-11-12 23:38:02 +01:00
Mike Hearn
32143160c2 Minor: reformat code a bit, introduce TimestampedWireTransaction as a wrapper, fix ContractStateRef to be the same as a Bitcoin COutPoint structure. 2015-11-12 23:18:15 +01:00
Mike Hearn
0b02f64f3d Contracts: a bit more work on the CP implementation, add a unit test for redemption at time. 2015-11-12 22:58:47 +01:00
Mike Hearn
a7bfff486a Misc comments 2015-11-11 14:20:24 +00:00
Mike Hearn
3041ca73f2 Simply TransactionForLedger.verify 2015-11-10 11:51:26 +00:00
Mike Hearn
ac9a371179 Platform: commands can now have multiple signatures per command (i.e. you only have one command of any type per transaction even if there are multiple authorisations). 2015-11-09 19:27:53 +00:00
Mike Hearn
0dc92822b5 Remove the todo list in Main.kt, it just changes too fast to be worth keeping it up to date. TODOs in the code itself remain. 2015-11-09 18:27:10 +00:00
Mike Hearn
12b7c7c184 Platform: fix the ability to summon cash in uncontrolled ways.
Introduce three ways to represent transactions: wire, ledger and for-verification.

TransactionForVerification contains the arguments formally passed to verify(). Making Contract.verify() take only a single object as the argument makes it easier to evolve the Contract binary interface without breaking backwards compatibility with existing contracts that are uploaded to the ledger. The Kotlin "with" construct can be used to bring the members into scope, thus acting syntactically like function arguments.

Make the contracts to be run depend on both input AND output states: this approach seems simpler than trying to have some notion of marking outputs that are checked. The TransactionForVerification class implements this simple logic (it's all moved into Transactions.kt).
2015-11-09 18:18:03 +00:00
Mike Hearn
4b9536af04 Add some TODOs 2015-11-09 17:32:16 +00:00
Mike Hearn
b8c7f949f4 Misc changes from Monday meeting. 2015-11-09 17:23:05 +00:00
Mike Hearn
8a2b8072e6 Contracts: include a string reference to the legal contract that the code is supposed to implement. Suggestion from Richard. 2015-11-08 13:38:51 +01:00
Mike Hearn
03aaf07f70 Cash: alter description of the state to talk about cash claims. Suggestion from Richard. 2015-11-08 13:34:52 +01:00