🧹 chore: Handle errIndexTooLarge during decode#28
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WalkthroughThe changes update error handling in the Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant Decoder
participant Cache
Client->>Decoder: Decode(input)
Decoder->>Cache: parsePath(input)
alt parsePath returns errIndexTooLarge
Decoder->>Decoder: Add errIndexTooLarge to multiErrors
else parsePath returns other error
alt ignoreUnknownKeys is false
Decoder->>Decoder: Add UnknownKeyError to multiErrors
end
end
Decoder-->>Client: Return result or multiErrors
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Summary of Changes
Hello @gaby, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request improves the precision of error reporting within the decoder by distinguishing errIndexTooLarge from generic unknown key errors. This ensures that specific parsing failures related to out-of-bounds indices are correctly identified and propagated, and the corresponding test case has been updated to reflect this new behavior.
Highlights
- Refined Error Handling: I've updated the
Decodemethod indecoder.goto specifically recognize and handleerrIndexTooLarge. Previously, if a path parsing error occurred andignoreUnknownKeyswas false, it would default to anUnknownKeyError. Now, if the underlying error iserrIndexTooLarge, that specific error is recorded, providing more precise error reporting. - Test Case Alignment: The test
TestDecodeIndexExceedsParserLimitindecoder_test.gohas been updated. It now correctly asserts thaterrIndexTooLargeis returned when an index exceeds the parser's limit, aligning with the refined error handling logic in the decoder.
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Actionable comments posted: 0
🧹 Nitpick comments (2)
decoder.go (1)
126-131: Explicitly surfacingerrIndexTooLargeis sensible – tiny nit on clarityThe additional branch correctly prevents an oversize-index error from being hidden by the ignore unknown keys setting.
Consider a micro-refactor to make intent clearer and avoid the double negative:} else { switch { case errors.Is(err, errIndexTooLarge): multiErrors[path] = err // propagate as-is case !d.ignoreUnknownKeys: multiErrors[path] = UnknownKeyError{Key: path} } }Same behaviour, slightly flatter.
No functional blockers – change looks good.decoder_test.go (1)
3170-3173: Guard against wrapped sentinel errors
reflect.DeepEqualrelies on pointer equality for theerrorinterface.
Ifcache.parsePathever starts wrapping (fmt.Errorf("%w", errIndexTooLarge)), this assertion will fail even thougherrors.Iswould pass.A future-proof tweak:
-expected := MultiError{"n1.1001.value": errIndexTooLarge} +expected := MultiError{"n1.1001.value": errIndexTooLarge} +if !errors.Is(err.(MultiError)["n1.1001.value"], errIndexTooLarge) { + t.Fatalf("expected errIndexTooLarge, got %v", err) +}Not required for current behaviour but avoids brittle equality.
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📒 Files selected for processing (2)
decoder.go(1 hunks)decoder_test.go(1 hunks)
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Summary
errIndexTooLargeas a decode error rather than an unknown keySummary by CodeRabbit
Bug Fixes
Tests