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interop: add L2ToL2CrossDomainMessenger predeploy invariants #469

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merged 3 commits into from
Dec 3, 2024
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interop: add L2ToL2CrossDomainMessenger predeploy invariants #469

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998005a
chore: add missing invariants
hexshire Nov 28, 2024
5b29774
chore: address review comment
hexshire Nov 29, 2024
4f8206d
chore: run fix lint
hexshire Nov 29, 2024
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7 changes: 7 additions & 0 deletions specs/interop/predeploys.md
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Expand Up @@ -16,6 +16,7 @@
- [`Identifier` Getters](#identifier-getters)
- [L2ToL2CrossDomainMessenger](#l2tol2crossdomainmessenger)
- [`relayMessage` Invariants](#relaymessage-invariants)
- [`sendMessage` Invariants](#sendmessage-invariants)
- [Message Versioning](#message-versioning)
- [No Native Support for Cross Chain Ether Sends](#no-native-support-for-cross-chain-ether-sends)
- [Interfaces](#interfaces)
Expand Down Expand Up @@ -277,6 +278,12 @@ as well as domain binding, ie the executing transaction can only be valid on a s

- The `Identifier.origin` MUST be `address(L2ToL2CrossDomainMessenger)`
- The `_destination` chain id MUST be equal to the local chain id
- Messages MUST NOT be relayed more than once

### `sendMessage` Invariants

- Sent Messages MUST be uniquely identifiable
- It must emit the `SentMessage` event

### Message Versioning

Expand Down