small code cleanup #1598
small code cleanup #1598
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Go programmers familier with `if err != nil {}` than `if err == nil {}`.
WalkthroughThe recent changes focus on enhancing error handling and control flow within the MySQL connection and packet handling modules. Specifically, error reporting improvements were made to the Changes
Sequence Diagram(s)sequenceDiagram
participant C as Client
participant M as mysqlConn
participant P as Packet Handler
C->>M: Execute query()
M->>P: Write command packet
P->>M: Command packet write response
alt Command packet error
M->>C: Return error
else No error
M->>P: Read result set header
P->>M: Result set header data
alt Header read error
M->>C: Return error
else No error
alt iOK packet
M->>C: Return result
else iERR packet
M->>C: Return error
else iLocalInFile packet
P->>M: handleInFileRequest()
M->>C: Proceed with file request
end
end
end
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Actionable comments posted: 0
Outside diff range and nitpick comments (9)
connection.go (2)
Line range hint
224-224: RefactorinterpolateParamsto reduce complexity and improve maintainability.Consider breaking down the
interpolateParamsfunction into smaller, more manageable functions. For instance, handling different types could be extracted into separate helper functions. This will make the code easier to understand and maintain.
Line range hint
1-656: Consider enhancing logging and context handling.While the error handling and connection management are robust, consider adding more detailed logging for error contexts and operational steps. This could help in debugging and maintaining high availability and reliability.
packets.go (7)
Line range hint
29-29: Consider refactoringreadPacketto reduce its complexity.The
readPacketfunction is quite long, which might make it hard to maintain. Consider breaking it down into smaller, more manageable functions or extracting certain parts of the logic into helper functions.
Line range hint
162-162: Consider refactoringreadHandshakePacketto improve maintainability.The
readHandshakePacketfunction is significantly lengthy. Refactoring it into smaller functions could improve readability and maintainability. For instance, parsing different parts of the packet could be delegated to separate functions.
Line range hint
255-255: RefactorwriteHandshakeResponsePacketto simplify its logic.The
writeHandshakeResponsePacketfunction contains too many statements, making it complex and hard to follow. Consider breaking it into smaller, focused functions or using helper functions to handle specific tasks like setting flags or handling TLS.
Line range hint
773-773: Reduce complexity inreadRowby refactoring.The
readRowfunction is lengthy and contains many statements. Consider refactoring it to break down the logic into smaller, more manageable pieces, such as extracting the handling of different data types into separate functions.
Line range hint
968-968: RefactorwriteExecutePacketto decrease its complexity.The
writeExecutePacketfunction is overly complex and lengthy. Refactoring it to separate concerns, such as parameter encoding and packet writing, into different functions or methods could greatly enhance clarity and maintainability.
Line range hint
1022-1022: Address high complexity inwriteExecutePacketdue to nested blocks.The nested blocks within the
if len(args) > 0block inwriteExecutePacketmake the function complex. Consider simplifying these blocks or using strategies like early returns to reduce nesting and improve readability.
Line range hint
1234-1234: Reduce the number of statements inreadRowto simplify the function.The
readRowfunction for binary rows is quite complex due to its length and the number of statements. Consider breaking it into smaller functions that handle specific parts of the row reading process.
Review details
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Review profile: CHILL
Files selected for processing (2)
- connection.go (1 hunks)
- packets.go (1 hunks)
Additional context used
golangci-lint
connection.go
224-224: Function 'interpolateParams' has too many statements (53 > 40) (funlen)
packets.go
29-29: Function 'readPacket' is too long (62 > 60) (funlen)
162-162: Function 'readHandshakePacket' is too long (88 > 60) (funlen)
255-255: Function 'writeHandshakeResponsePacket' has too many statements (66 > 40) (funlen)
673-673: Function 'readColumns' has too many statements (45 > 40) (funlen)
773-773: Function 'readRow' has too many statements (45 > 40) (funlen)
968-968: Function 'writeExecutePacket' has too many statements (108 > 40) (funlen)
1234-1234: Function 'readRow' has too many statements (92 > 40) (funlen)
1022-1022:
if len(args) > 0has complex nested blocks (complexity: 30) (nestif)
Additional comments not posted (2)
connection.go (1)
403-424: Improved error handling in thequerymethod looks good.The changes ensure that any network or parameter interpolation errors are caught and handled appropriately, improving the robustness of the connection handling.
packets.go (1)
Line range hint
673-673: SimplifyreadColumnsby modularizing its components.
[REFACTOR_SUGGESTion]
ThereadColumnsfunction is complex due to the high number of statements. Breaking down the function into smaller, more focused functions could enhance readability and maintainability. For example, handling different types of fields could be extracted into separate functions.
3 participants
Description
if err != nil {}thanif err == nil {}.Checklist
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