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feat: L2ToL2CDM SentMessage originContext field #700

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hamdiallam wants to merge 2 commits into from
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feat: L2ToL2CDM SentMessage originContext field #700

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7beb2a5
sent message context
hamdiallam May 12, 2025
1bebffa
chore: update spec (#710)
hexshire May 29, 2025
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7 changes: 5 additions & 2 deletions specs/interop/predeploys.md
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Expand Up @@ -390,7 +390,7 @@ which is used to track whether the message has successfully been relayed.
It also emits a `SentMessage` event with the necessary metadata to execute when relayed on the destination chain.

```solidity
event SentMessage(uint256 indexed destination, address indexed target, uint256 indexed messageNonce, address sender, bytes message);
event SentMessage(uint256 indexed destination, address indexed target, uint256 indexed messageNonce, address sender, bytes message, bytes originContext);
```

An explicit `_destination` chain and `nonce` are used to ensure that the message can only be played on a single remote
Expand All @@ -406,6 +406,8 @@ it will be the `L2ToL2CrossDomainMessenger` and users will need to callback to g
The `_destination` MUST NOT be the chain-ID of the local chain and a locally defined `nonce` MUST increment on
every call to `sendMessage`.

Messages might also contain some internal context with metadata, analogous to headers with HTTP requests.

Note that `sendMessage` is not `payable`.

### Re-sending Messages
Expand All @@ -420,7 +422,8 @@ mapping prior to emitting the `SentMessage` event.
uint256 _nonce,
address _sender,
address _target,
bytes calldata _message
bytes calldata _message,
bytes calldata _originContext
)
external;
```
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