Commit graph

29 commits

Author SHA1 Message Date
Evgenii Stratonikov
bf01599430 vm: check return value on context unload
When calling external contracts we expect exactly 1 value to be on
stack. For methods returning nothing, `Null` value is pushed, otherwise
it is an error.`
2020-08-10 11:52:33 +03:00
Anna Shaleva
995053f2eb core: add VM into interop context 2020-08-07 16:15:24 +03:00
Anna Shaleva
90825efa16 core: move transaction's sender to cosigners
Closes #1184

Ported changes from https://github.com/neo-project/neo/pull/1752
2020-08-04 17:33:50 +03:00
Evgenii Stratonikov
3c99393bef core: simplify System.Contract.Call* parameter handling 2020-07-30 12:37:32 +03:00
Evgenii Stratonikov
f40aba4cd0 vm: convert items to UTF-8 strings
Add `stackitem.ToString` for seamless string conversion.
2020-07-30 12:37:31 +03:00
Evgenii Stratonikov
23a1430395 core: allow to restrict creating callbacks from syscalls
Specify DisallowCallback flag if syscall is not allowed to be used in a
callback.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-29 13:41:08 +03:00
Evgenii Stratonikov
99b0397a61 core: implement System.Callback.CreateFromSyscall interop
Allow to create callbacks from syscalls.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-29 13:41:08 +03:00
Evgenii Stratonikov
c54b45e76d core: implement System.Callback.CreateFromMethod interop
Support creating callbacks from contract methods.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-29 13:41:08 +03:00
Evgenii Stratonikov
f96c217aba core/tests: refactor getting contract state
Get 2 contracts in pair which is useful everytime we need to test
syscall with one contract calling the other.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-29 13:41:08 +03:00
Evgenii Stratonikov
e654d22991 core/tests: introduce loadScript helper
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-29 13:41:08 +03:00
Evgenii Stratonikov
382a7f5b3e core: implement System.Callback.* interops
Support creating callbacks from pointers.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-29 13:41:08 +03:00
Evgenii Stratonikov
685d44dbc1 *: support _initialize method in contracts
Invoke `_initialize` method on every call if present.
In NEO3 there is no entrypoint and methods are invoked by offset,
thus `Main` function is no longer required.
We still have special `Main` method in tests to simplify them.
2020-07-27 13:00:35 +03:00
Evgenii Stratonikov
466af55dea vm: isolate stack in LoadScript
When calling contract it must be provided with a new stack containing
only it's arguments. The result is then copied back on RET.

Fix #1220.
2020-07-27 13:00:35 +03:00
Evgenii Stratonikov
d2ddf7b7cb *: support invoking methods by offset
Allow to invoke methods by offset:
1. Every invoked contract must have manifest.
2. Check arguments count on invocation.
3. Change AppCall to a regular syscall.
4. Add test suite for `System.Contract.Call`.
2020-07-27 13:00:35 +03:00
Evgenii Stratonikov
e52c39ae7e manifest: remove EntryPoint from manifest 2020-07-27 11:08:01 +03:00
Evgenii Stratonikov
3d7fa9de93 *: make Notify interop accept event name 2020-07-20 13:33:32 +03:00
Anna Shaleva
f31ce9289d core: add System.Contract.GetCallFlags interop
Part of #1055.

It returns calling flags of the current context.
2020-07-17 12:35:02 +03:00
Anna Shaleva
842feb2533 core: adjust System.Contract.Update interop
Part of #1055.

We should check contract scripthash against the one provided in manifest
and manifest groups. We shouldn't put on stack anything after return.
And ofcourse, we mast not destroy the old contract at the end, as
`contractDestroy` removes all storage items associated with the
old contract ID (which equals to the new contract ID). We just remove
old contract state - it's enough.
2020-07-17 12:33:44 +03:00
Anna Shaleva
fddad0b475 core: adjust System.Contract.Create interop
Part of #1055.

It should check given scripthash against manifest groups and return the
contract state as a struct (not interop interface).
2020-07-17 09:28:52 +03:00
Anna Shaleva
d2ec0fed3d core: adjust System.Blockchain.GetContract interop
Part of #1055.

It should put on stack an array instead of interop interface.
2020-07-17 09:28:52 +03:00
Anna Shaleva
1a5fb01e61 core: adjust System.Contract.IsStandard interop
Part of #1055.

It should check not only stored contracts, but also interop context
script container in case if it's a transaction.
2020-07-17 08:19:43 +03:00
Evgenii Stratonikov
3762ebdd08 core: implement System.Runtime.GetInvocationCounter syscall 2020-06-17 11:24:11 +03:00
Evgenii Stratonikov
75e597f880 core: implement System.Runtime.GetNotifications syscall 2020-06-17 11:24:11 +03:00
Evgenii Stratonikov
a4e4439967 core,vm: implement System.Runtime.GasLeft syscall 2020-06-17 11:24:11 +03:00
Evgenii Stratonikov
52a27e9be4 core: implement System.Contract.CreateStandardAccount syscall 2020-06-16 12:12:29 +03:00
Evgenii Stratonikov
5b4f38d717 core: implement System.Contract.IsStandard syscall 2020-06-16 12:12:27 +03:00
Anna Shaleva
7a2d37cf7e core: update System.Blockchain.GetBlock interop
closes #1025

Now we put on stack stackitem.Array instead of Interop, so we're able to
use all available block properties without extra interop getters.
Removed Neo.Blockchain.GetBlock interop as we don't need it anymore.
2020-06-09 23:24:04 +03:00
Anna Shaleva
d692de5ea4 core: add System.Blockchain.GetTransactionFromBlock interop 2020-06-09 22:54:16 +03:00
Anna Shaleva
53655c5ac2 core: implement new System.Blockchain.GetTransaction interop
closes #1023

Now we put on stack stackitem.Array instead of Interop, so we don't
need old transaction-related interops anymore. Removed the following
interops:
	System.Transaction.GetHash
	Neo.Transaction.GetAttributes
	Neo.Transaction.GetHash
	Neo.Transaction.GetWitnesses
	Neo.Attribute.GetData
	Neo.Attribute.GetUsage

Also removed the following duplicated NEO interop:
	Neo.Blockchain.GetTransaction
2020-06-09 22:04:13 +03:00