Interop message passing explainer #1268
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📝 WalkthroughWalkthroughThe pull request introduces substantial modifications to the The documentation now offers a more comprehensive overview of the message passing mechanism, with an expanded description of the Possibly related PRs
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Actionable comments posted: 1
🧹 Nitpick comments (5)
pages/stack/interop/message-passing.mdx (5)
9-11: Consider renamingInteropCalloutto be more descriptive.The component name
InteropCalloutcould be more specific about its purpose, such asInteropWipCalloutorInteropStatusCallout, especially since it's imported from a file namedWipCallout.
42-55: Improve list formatting for better readability.The parameter list and log entry details need consistent formatting:
The call requires these parameters: - - `_destination`, the chain ID of the destination blockchain. - - `_target`, the address of the contract on that blockchain. - - `_message`, the actual message. +* `_destination`: The chain ID of the destination blockchain +* `_target`: The address of the contract on that blockchain +* `_message`: The actual message In addition to the parameters, the log entry also includes: - - `_nonce`, a [nonce](https://en.wikipedia.org/wiki/Cryptographic_nonce) value to ensure the message is only executed once. - - `_sender`, the contract that sent the cross domain message. +* `_nonce`: A [nonce](https://en.wikipedia.org/wiki/Cryptographic_nonce) value to ensure the message is only executed once +* `_sender`: The contract that sent the cross-domain message🧰 Tools
🪛 LanguageTool
[uncategorized] ~45-~45: Loose punctuation mark.
Context: ...s these parameters: -_destination, the chain ID of the destination blockch...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~46-~46: Loose punctuation mark.
Context: ...e destination blockchain. -_target, the address of the contract on that blo...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~47-~47: Loose punctuation mark.
Context: ...ract on that blockchain. -_message, the actual message. This message i...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~53-~53: Loose punctuation mark.
Context: ... log entry also includes: -_nonce, a [nonce](https://en.wikipedia.org/wiki...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~55-~55: Loose punctuation mark.
Context: ...e is only executed once. -_sender, the contract that sent the cross domain...(UNLIKELY_OPENING_PUNCTUATION)
81-90: Maintain consistent terminology and hyphenation.Apply consistent hyphenation for compound terms:
-`L2ToL2CrossDomainMessenger` on the destination chain verified the message is legitimate: +`L2ToL2CrossDomainMessenger` on the destination chain verifies that the message is legitimate: The following checks are performed: - - The origin (of the log entry) is `L2ToL2CrossDomainMessenger` on the other side. - - Verify the message really was sent from the source (using `CrossL2Inbox`). - - The destination chain ID is correct. - - The target is neither `CrossL2Inbox` nor `L2ToL2CrossDomainMessenger`. - - This message has not been relayed before. +* The log entry originates from `L2ToL2CrossDomainMessenger` on the source chain +* The message was sent from the source (verified using `CrossL2Inbox`) +* The destination chain ID matches +* The target is neither `CrossL2Inbox` nor `L2ToL2CrossDomainMessenger` +* The message has not been previously relayed
95-98: Improve link formatting consistency.The links have inconsistent formatting:
-* Learn about [manually relaying messages](https://supersim.pages.dev/guides/interop/viem?#viem-to-send-and-relay-interop-messages) +* Learn about [manually relaying messages](https://supersim.pages.dev/guides/interop/viem#viem-to-send-and-relay-interop-messages)
100-100: Address the TODO comment for documentation completeness.The comment indicates that a tutorial link needs to be added once the L2ToL2CrossDomainMessenger tutorial is written.
Would you like me to create an issue to track this pending documentation task?
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Pattern **/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
🪛 LanguageTool
pages/stack/interop/message-passing.mdx
[uncategorized] ~45-~45: Loose punctuation mark.
Context: ...s these parameters: - _destination, the chain ID of the destination blockch...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~46-~46: Loose punctuation mark.
Context: ...e destination blockchain. - _target, the address of the contract on that blo...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~47-~47: Loose punctuation mark.
Context: ...ract on that blockchain. - _message, the actual message. This message i...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~53-~53: Loose punctuation mark.
Context: ... log entry also includes: - _nonce, a [nonce](https://en.wikipedia.org/wiki...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~55-~55: Loose punctuation mark.
Context: ...e is only executed once. - _sender, the contract that sent the cross domain...
(UNLIKELY_OPENING_PUNCTUATION)
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Actionable comments posted: 1
🧹 Nitpick comments (4)
pages/stack/interop/message-passing.mdx (4)
35-35: Be more specific about the verification steps.The term "Sanity checks" is vague. Consider being more specific about what checks are performed.
- note over srcXdom: 3. Sanity checks + note over srcXdom: 3. Verify chain ID and target contract
81-81: Be more specific about the verification steps.Similar to the previous diagram, the term "Sanity checks" should be more specific.
- note over dstXdom: 4. Sanity checks + note over dstXdom: 4. Verify origin, chain ID, and message status
88-88: Improve clarity of the message relay explanation.The explanation of the relay message parameters is unclear.
- This call includes the message that was sent (`_sendMessage`), as well as the [fields required to find that message (`_id`)](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/interfaces/L2/ICrossL2Inbox.sol#L4-L10). + This call requires two parameters: + - The original message (`_sendMessage`) + - The [message identifier fields (`_id`)](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/interfaces/L2/ICrossL2Inbox.sol#L4-L10) used to locate the message on the source chain
110-110: Track the TODO comment properly.The TODO comment about adding a tutorial link should be tracked in an issue.
Would you like me to create an issue to track this TODO item for adding the L2ToL2CrossDomainMessenger tutorial link?
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pages/stack/interop/message-passing.mdx (1)
Pattern **/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
🪛 LanguageTool
pages/stack/interop/message-passing.mdx
[uncategorized] ~20-~20: If this is a compound adjective that modifies the following noun, use a hyphen.
Context: ...g mesage* on the destination chain. For high level interop messages, both messages use `L2...
(EN_COMPOUND_ADJECTIVE_INTERNAL)
[uncategorized] ~45-~45: Loose punctuation mark.
Context: ...s these parameters: - _destination, the chain ID of the destination blockch...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~46-~46: Loose punctuation mark.
Context: ...e destination blockchain. - _target, the address of the contract on that blo...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~47-~47: Loose punctuation mark.
Context: ...ract on that blockchain. - _message, the actual message. This message i...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~58-~58: Loose punctuation mark.
Context: ... log entry also includes: - _nonce, a [nonce](https://en.wikipedia.org/wiki...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~60-~60: Loose punctuation mark.
Context: ...e is only executed once. - _sender, the contract that sent the cross domain...
(UNLIKELY_OPENING_PUNCTUATION)
⏰ Context from checks skipped due to timeout of 90000ms (3)
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🔇 Additional comments (1)
pages/stack/interop/message-passing.mdx (1)
15-17: Improve grammar and clarity in the overview section.The text contains several grammatical issues and could be clearer.
Apply this diff to improve clarity:
-The low level [`CrossL2Inbox`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/CrossL2Inbox.sol) contract provides for basic executing message functionality, it verifies whether an initiating message is available or not. -However, this contract does not check what is the destination of a message, whether it has already been processed, etc. -The [`L2ToL2CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/L2ToL2CrossDomainMessenger.sol) contracts sits on top of `CrossL2Inbox` and provides the full functionality expected of a cross domain messenger. +The low-level [`CrossL2Inbox`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/CrossL2Inbox.sol) contract provides basic message execution functionality by verifying message availability. +However, this contract does not verify message destinations or check for previous processing. +The [`L2ToL2CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/L2ToL2CrossDomainMessenger.sol) contract builds upon `CrossL2Inbox` to provide comprehensive cross-domain messaging functionality.
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Actionable comments posted: 1
🧹 Nitpick comments (3)
pages/stack/interop/message-passing.mdx (3)
35-35: Be more specific about the sanity checks.Replace the vague term "Sanity checks" with the actual checks performed, as detailed in lines 50-53.
- note over srcXdom: 3. Sanity checks + note over srcXdom: 3. Verify:\n• Valid destination chain\n• Not same chain\n• Valid target contract
80-80: Be more specific about the sanity checks.Replace the vague term "Sanity checks" with the actual checks performed, as detailed in lines 91-97.
- note over dstXdom: 4. Sanity checks + note over dstXdom: 4. Verify:\n• Valid origin\n• Correct chain ID\n• Valid target\n• Not previously relayed
107-107: Track the TODO comment for the missing tutorial link.The comment indicates that a link needs to be added when the L2ToL2CrossDomainMessenger tutorial is written.
Would you like me to create an issue to track this TODO item?
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pages/stack/interop/message-passing.mdx(1 hunks)words.txt(3 hunks)
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pages/stack/interop/message-passing.mdx (1)
Pattern **/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
🪛 LanguageTool
words.txt
[duplication] ~157-~157: Möglicher Tippfehler: ein Wort wird wiederholt
Context: ...or inator INFLUXDBV influxdbv intiating IPCDISABLE ipcdisable ipcfile IPCPATH ipcpath IPFS JALR JOURN...
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pages/stack/interop/message-passing.mdx
[uncategorized] ~20-~20: If this is a compound adjective that modifies the following noun, use a hyphen.
Context: ...g mesage* on the destination chain. For high level interop messages, both messages use `L2...
(EN_COMPOUND_ADJECTIVE_INTERNAL)
[uncategorized] ~45-~45: Loose punctuation mark.
Context: ...hese parameters: * _destination, the chain ID of the destination blockch...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~46-~46: Loose punctuation mark.
Context: ...estination blockchain. * _target, the address of the contract on that blo...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~47-~47: Loose punctuation mark.
Context: ...t on that blockchain. * _message, the actual message. This messag...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~58-~58: Loose punctuation mark.
Context: ...g entry also includes: * _nonce, a [nonce](https://en.wikipedia.org/wiki...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~60-~60: Loose punctuation mark.
Context: ...s only executed once. * _sender, the contract that sent the cross domain...
(UNLIKELY_OPENING_PUNCTUATION)
⏰ Context from checks skipped due to timeout of 90000ms (3)
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- GitHub Check: Header rules - docs-optimism
- GitHub Check: Pages changed - docs-optimism
🔇 Additional comments (3)
pages/stack/interop/message-passing.mdx (3)
19-20: Fix typos and add missing hyphens.-A cross-chain message in the Superchain is two transactions: an *intiating message* on the source chain and an *executing mesage* on the destination chain. -For high level interop messages, both messages use `L2ToL2CrossDomainMessenger` on their respective chains. +A cross-chain message in the Superchain is two transactions: an *initiating message* on the source chain and an *executing message* on the destination chain. +For high-level interop messages, both messages use `L2ToL2CrossDomainMessenger` on their respective chains.🧰 Tools
🪛 LanguageTool
[uncategorized] ~20-~20: If this is a compound adjective that modifies the following noun, use a hyphen.
Context: ...g mesage* on the destination chain. For high level interop messages, both messages use `L2...(EN_COMPOUND_ADJECTIVE_INTERNAL)
15-17: 🛠️ Refactor suggestionImprove grammar and clarity in the overview section.
The text contains several grammatical issues:
-The low level [`CrossL2Inbox`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/CrossL2Inbox.sol) contract provides for basic executing message functionality, it verifies whether an initiating message is available or not. -However, this contract does not check what is the destination of a message, whether it has already been processed, etc. -The [`L2ToL2CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/L2ToL2CrossDomainMessenger.sol) contracts sits on top of `CrossL2Inbox` and provides the full functionality expected of a cross domain messenger. +The low-level [`CrossL2Inbox`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/CrossL2Inbox.sol) contract provides basic message execution functionality by verifying message availability. +However, this contract does not verify message destinations or check for previous processing. +The [`L2ToL2CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/L2ToL2CrossDomainMessenger.sol) contract builds upon `CrossL2Inbox` to provide comprehensive cross-domain messaging functionality.Likely invalid or redundant comment.
84-84: Clarify the role of OP-Proposer.The text mentions OP-Proposer but the diagram shows OP-Supervisor. This inconsistency needs to be resolved.
Co-authored-by: Blessing Krofegha <[email protected]>
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Actionable comments posted: 0
🧹 Nitpick comments (2)
pages/stack/interop/message-passing.mdx (2)
39-59: Improve formatting consistency in lists.Consider standardizing the indentation and spacing in bullet point lists for better readability.
- * `_destination`: The chain ID of the destination blockchain. - * `_target`: The address of the contract on that blockchain. - * `_message`: The actual message. +* `_destination`: The chain ID of the destination blockchain. +* `_target`: The address of the contract on that blockchain. +* `_message`: The actual message.🧰 Tools
🪛 LanguageTool
[uncategorized] ~44-~44: Loose punctuation mark.
Context: ...hese parameters: *_destination: The chain ID of the destination blockch...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~45-~45: Loose punctuation mark.
Context: ...estination blockchain. *_target: The address of the contract on that blo...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~46-~46: Loose punctuation mark.
Context: ...t on that blockchain. *_message: The actual message. This messag...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~57-~57: Loose punctuation mark.
Context: ...g entry also includes: *_nonce: A [nonce](https://en.wikipedia.org/wiki...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~59-~59: Loose punctuation mark.
Context: ...s only executed once. *_sender: The contract that sent the cross domain...(UNLIKELY_OPENING_PUNCTUATION)
106-106: Track the TODO comment for adding tutorial link.Would you like me to create an issue to track the addition of the L2ToL2CrossDomainMessenger tutorial link?
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pages/stack/interop/message-passing.mdx (1)
Pattern **/*.mdx: "ALWAYS review Markdown content THOROUGHLY with the following criteria:
- Use proper nouns in place of personal pronouns like 'We' and 'Our' to maintain consistency in communal documentation.
- Avoid gender-specific language and use the imperative form.
- Monitor capitalization for emphasis. Avoid using all caps, italics, or bold for emphasis.
- Ensure proper nouns are capitalized in sentences.
- Apply the Oxford comma.
- Use proper title case for buttons, tab names, page names, and links. Sentence case should be used for body content and short phrases, even in links.
- Use correct spelling and grammar at all times (IMPORTANT).
- For H1, H2, and H3 headers:
- Use sentence case, capitalizing only the first word.
- Preserve the capitalization of proper nouns, technical terms, and acronyms as defined in the 'nouns.txt' file located in the root directory of the project.
- Do not automatically lowercase words that appear in the 'nouns.txt' file, regardless of their position in the header.
- Flag any headers that seem to inconsistently apply these rules for manual review.
- When reviewing capitalization, always refer to the 'nouns.txt' file for the correct capitalization of proper nouns and technical terms specific to the project.
"
🪛 LanguageTool
pages/stack/interop/message-passing.mdx
[uncategorized] ~44-~44: Loose punctuation mark.
Context: ...hese parameters: * _destination: The chain ID of the destination blockch...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~45-~45: Loose punctuation mark.
Context: ...estination blockchain. * _target: The address of the contract on that blo...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~46-~46: Loose punctuation mark.
Context: ...t on that blockchain. * _message: The actual message. This messag...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~57-~57: Loose punctuation mark.
Context: ...g entry also includes: * _nonce: A [nonce](https://en.wikipedia.org/wiki...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~59-~59: Loose punctuation mark.
Context: ...s only executed once. * _sender: The contract that sent the cross domain...
(UNLIKELY_OPENING_PUNCTUATION)
⏰ Context from checks skipped due to timeout of 90000ms (3)
- GitHub Check: Redirect rules - docs-optimism
- GitHub Check: Header rules - docs-optimism
- GitHub Check: Pages changed - docs-optimism
🔇 Additional comments (5)
pages/stack/interop/message-passing.mdx (5)
Line range hint
1-11: LGTM! Frontmatter and imports are properly structured.The title follows sentence case, and the imports are correctly defined.
🧰 Tools
🪛 LanguageTool
[uncategorized] ~44-~44: Loose punctuation mark.
Context: ...hese parameters: *_destination: The chain ID of the destination blockch...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~45-~45: Loose punctuation mark.
Context: ...estination blockchain. *_target: The address of the contract on that blo...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~46-~46: Loose punctuation mark.
Context: ...t on that blockchain. *_message: The actual message. This messag...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~57-~57: Loose punctuation mark.
Context: ...g entry also includes: *_nonce: A [nonce](https://en.wikipedia.org/wiki...(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~59-~59: Loose punctuation mark.
Context: ...s only executed once. *_sender: The contract that sent the cross domain...(UNLIKELY_OPENING_PUNCTUATION)
13-19: LGTM! Clear and accurate explanation of the contracts.The overview provides a well-structured explanation of both contracts and their relationships.
21-38: Add OP-Supervisor to the initiating message diagram.For consistency with the executing message diagram and better understanding of the complete flow, consider adding OP-Supervisor to this diagram as well.
61-81: LGTM! Comprehensive sequence diagram.The diagram clearly illustrates the message execution flow and includes all relevant components.
83-98: LGTM! Clear explanation of the execution process.The verification steps and process explanation are thorough and accurate.
Description
Updated the
L2ToL2CrossDomainMessengerexplainer to be more detailed.Tests
N/A
Additional context
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Metadata
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