fix #42 #43
fix #42 #43
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WalkthroughThe changes introduce a new Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant Router
participant Middleware
participant Handler
participant Goroutine
Client->>Router: HTTP request to /panic
Router->>Middleware: Pass request
Middleware->>Handler: Call handler in goroutine
Handler->>Goroutine: Execute dive() (division by zero)
Goroutine-->>Handler: Panic occurs
Handler-->>Middleware: PanicInfo{Value, Stack} sent via channel
Middleware->>Middleware: Recover panic, log Value and Stack
Middleware-->>Client: Return error response with panic value
Estimated code review effort🎯 2 (Simple) | ⏱️ ~8 minutes Poem
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Actionable comments posted: 2
🧹 Nitpick comments (2)
timeout.go (1)
69-69: Channel type should match the data being sent.The channel is declared as
chan anybut exclusively receivesPanicInfostructs. Consider using a more specific type for better type safety.-panicInfoChan := make(chan any, 1) +panicInfoChan := make(chan PanicInfo, 1)example/panic/panic.go (1)
23-23: Fix typo in log message.There's a typo in the log message: "unknow" should be "unknown".
- log.Printf("unknow error:%v\n", info.Value) + log.Printf("unknown error:%v\n", info.Value)
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (2)
example/panic/panic.go(2 hunks)timeout.go(3 hunks)
🔇 Additional comments (5)
timeout.go (3)
28-31: Well-structured panic information encapsulation.The
PanicInfostruct effectively encapsulates both the panic value and stack trace in a structured format. The JSON tags are appropriate for serialization scenarios.
73-76: Improved panic data structure.The panic recovery now properly encapsulates both the panic value and stack trace in a structured format, which is a significant improvement over string formatting.
86-87: PanicInfo propagation verified.Upstream
recoverhandlers already handle the structuredPanicInfocorrectly:
- In example/panic/panic.go, the recovered panic is type-asserted to
timeout.PanicInfoand its fields are logged.- In timeout_test.go,
fmt.Sprintf("%v", p)will format thePanicInfostruct without error.No further changes are needed.
example/panic/panic.go (2)
47-47: Good refactoring for separation of concerns.Extracting the panic-inducing logic into a separate
dive()function improves code organization and makes the panic trigger more explicit.
52-55: Function serves its purpose well.The
dive()function clearly demonstrates division by zero panic behavior for testing purposes.
| info := p.(timeout.PanicInfo) | ||
| log.Printf("unknow error:%v\n", info.Value) | ||
| log.Printf("stack:%v\n", info.Stack) |
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Add type assertion safety check.
The type assertion p.(timeout.PanicInfo) will panic if the recovered value is not a PanicInfo struct. This could happen if panics originate from other parts of the application.
- info := p.(timeout.PanicInfo)
- log.Printf("unknow error:%v\n", info.Value)
- log.Printf("stack:%v\n", info.Stack)
+ if info, ok := p.(timeout.PanicInfo); ok {
+ log.Printf("unknow error:%v\n", info.Value)
+ log.Printf("stack:%v\n", info.Stack)
+ } else {
+ log.Printf("unknow error:%v\n", p)
+ log.Printf("stack: not available\n")
+ }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| info := p.(timeout.PanicInfo) | |
| log.Printf("unknow error:%v\n", info.Value) | |
| log.Printf("stack:%v\n", info.Stack) | |
| if info, ok := p.(timeout.PanicInfo); ok { | |
| log.Printf("unknow error:%v\n", info.Value) | |
| log.Printf("stack:%v\n", info.Stack) | |
| } else { | |
| log.Printf("unknow error:%v\n", p) | |
| log.Printf("stack: not available\n") | |
| } |
🤖 Prompt for AI Agents
In example/panic/panic.go around lines 22 to 24, the type assertion
p.(timeout.PanicInfo) is unsafe and can cause a panic if p is not of type
timeout.PanicInfo. Modify the code to use the two-value form of type assertion
to check if the assertion succeeded before accessing info. Only log the details
if the assertion is successful; otherwise, handle the unexpected type safely to
avoid panics.
| log.Printf("unknow error:%v\n", info.Value) | ||
| log.Printf("stack:%v\n", info.Stack) | ||
| c.AbortWithStatusJSON(http.StatusInternalServerError, | ||
| errResponse{Code: -1, Msg: fmt.Sprintf("unknow error:%v", p)}) |
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🛠️ Refactor suggestion
Inconsistent panic value in response message.
The response message uses the original panic value p instead of info.Value. This creates inconsistency between what's logged and what's returned to the client.
- c.AbortWithStatusJSON(http.StatusInternalServerError,
- errResponse{Code: -1, Msg: fmt.Sprintf("unknow error:%v", p)})
+ var panicValue any = p
+ if info, ok := p.(timeout.PanicInfo); ok {
+ panicValue = info.Value
+ }
+ c.AbortWithStatusJSON(http.StatusInternalServerError,
+ errResponse{Code: -1, Msg: fmt.Sprintf("unknow error:%v", panicValue)})🤖 Prompt for AI Agents
In example/panic/panic.go at line 26, the panic response message uses the
original panic value `p` instead of the consistent `info.Value`. Update the
response message to use `info.Value` to ensure the returned message matches the
logged panic information.
Summary by CodeRabbit
Refactor
New Features