Add field to decode error #42

shogo82148 · 2025-03-27T05:56:54Z

Summary by CodeRabbit

New Features
- Enhanced error messages now include contextual details about the specific data field that triggered an issue, aiding in quicker and more accurate troubleshooting.
Tests
- Updated test validations ensure that error reports reliably include the correct field details, enhancing overall error reporting consistency and robustness.

coderabbitai · 2025-03-27T05:57:01Z

Walkthrough

The changes add a new Field string attribute to the DecodeError struct. The Error() method is updated to incorporate this field in the error messages, detailing the field alongside line and column numbers. In addition, the decodeRecord method is modified to assign the appropriate key to this new field during error creation. The test suite has been enhanced to assert that the Field value is correctly set, ensuring the extended error context is validated.

Changes

File(s)	Change Summary
decode.go	Added new `Field string` to `DecodeError`; updated the `Error()` method to include the field name; modified `decodeRecord` to populate `Field`.
decode_test.go	Introduced additional assertions in `TestDecodeRecord_Error` to verify that `DecodeError.Field` is correctly set (expects "a").

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant Decoder
    Client->>Decoder: Call decodeRecord(input)
    Decoder->>Decoder: Detect error during decoding
    Decoder->>Decoder: Create DecodeError (includes Field, Column, and Err)
    Decoder-->>Client: Return detailed error message

Possibly related PRs

add DecodeError type for improved error handling in decoding #37: Introduced the DecodeError type; this PR further enhances it by adding the new field and updating its error reporting methods.

Poem

I'm a bouncy rabbit, typing with delight,
New fields added make errors shine bright.
With each decoded message, a carrot so sweet,
Errors reveal their secrets, a crunchy treat.
Hop along, developers, through code day and night!
🐰✨

📜 Recent review details

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📥 Commits

Reviewing files that changed from the base of the PR and between 21ab445 and 3676ddb.

📒 Files selected for processing (2)

decode.go (5 hunks)
decode_test.go (9 hunks)

🔇 Additional comments (15)

decode.go (6)

16-22: Addition of Field attribute enhances error context.

The new Field attribute in the DecodeError struct provides valuable context about which field caused the error. This improves error reporting and debugging capabilities.

24-29: Error message formatting includes field information.

The updated Error() method now properly includes the field name in error messages, providing more detailed information about where the error occurred. The formatting is consistent in both cases (with or without StartLine differing from Line).

212-218: Field information is properly populated for map decoding errors.

The code now correctly assigns the field name (k) to the Field attribute in the DecodeError, maintaining consistency with the error message format.

235-241: Field information is properly populated for slice decoding errors.

The code now correctly assigns the field name (k) to the Field attribute in the DecodeError for slice elements, maintaining consistency with the error message format.

256-262: Field information is properly populated for array decoding errors.

The code now correctly assigns the field name (k) to the Field attribute in the DecodeError for array elements, maintaining consistency with the error message format.

278-284: Field information is properly populated for struct field decoding errors.

The code now correctly assigns the field name (k) to the Field attribute in the DecodeError for struct fields, maintaining consistency with the error message format.

decode_test.go (9)

353-355: Test verifies Field value for int8 map decoding errors.

The test has been enhanced to verify that the Field attribute in DecodeError is correctly set to "a" when an int8 overflow occurs in a map. This ensures that the field name is properly captured and reported in errors.

380-382: Test verifies Field value for int8 slice decoding errors.

The test has been enhanced to verify that the Field attribute in DecodeError is correctly set to "a" when an int8 overflow occurs in a slice. This ensures consistent behavior across different container types.

407-409: Test verifies Field value for int8 array decoding errors.

The test has been enhanced to verify that the Field attribute in DecodeError is correctly set to "a" when an int8 overflow occurs in an array. This maintains test coverage across all container types.

436-438: Test verifies Field value for int8 struct decoding errors.

The test has been enhanced to verify that the Field attribute in DecodeError is correctly set to "a" when an int8 overflow occurs in a struct field. This completes the coverage for basic data types.

463-465: Test verifies Field value for uint8 map decoding errors.

The test has been enhanced to verify that the Field attribute in DecodeError is correctly set to "a" when a uint8 overflow occurs in a map. This ensures consistent behavior across different integer types.

490-492: Test verifies Field value for int8 parse errors in maps.

The test has been enhanced to verify that the Field attribute in DecodeError is correctly set to "a" when an int8 parse error occurs in a map. This ensures field information is captured for parse errors.

517-519: Test verifies Field value for uint8 parse errors in maps.

The test has been enhanced to verify that the Field attribute in DecodeError is correctly set to "a" when a uint8 parse error occurs in a map. This ensures field information is captured for unsigned integer parse errors.

544-546: Test verifies Field value for float32 overflow errors in maps.

The test has been enhanced to verify that the Field attribute in DecodeError is correctly set to "a" when a float32 overflow occurs in a map. This extends coverage to floating-point types.

571-573: Test verifies Field value for float32 parse errors in maps.

The test has been enhanced to verify that the Field attribute in DecodeError is correctly set to "a" when a float32 parse error occurs in a map. This completes the coverage for floating-point types.

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Copilot

Pull Request Overview

This PR adds a Field attribute to the DecodeError structure and updates error messages accordingly to improve error information clarity.

Updates the DecodeError struct to include a new Field string.
Adjusts the Error() method in decode.go to reflect the new Field attribute.
Updates tests in decode_test.go to assert that the Field value is correctly set.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
decode.go	Adds a Field member to DecodeError and updates error messages to include the field name.
decode_test.go	Updates tests to verify the new Field value in decode errors.

Comments suppressed due to low confidence (1)

decode.go:26

[nitpick] Consider standardizing the error message format in both branches of the Error() method. Currently, one branch uses 'field: "%q"' while the other uses 'field "%q"'; aligning these can improve readability.

return fmt.Sprintf("headercsv: decode error on line %d, column %d, field "%q": %v", e.Line, e.Column, e.Field, e.Err)

coveralls · 2025-03-27T06:01:46Z

Pull Request Test Coverage Report for Build 14099910814

Details

4 of 6 (66.67%) changed or added relevant lines in 1 file are covered.
No unchanged relevant lines lost coverage.
Overall coverage increased (+0.1%) to 82.422%

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
decode.go	4	6	66.67%

Totals
Change from base Build 14099768478:	0.1%
Covered Lines:	422
Relevant Lines:	512

💛 - Coveralls

shogo82148 added 2 commits March 27, 2025 14:56

enhance: include field name in DecodeError for better error context

f404593

Merge branch 'main' into add-field-to-decode-error

66f7d4f

shogo82148 requested a review from Copilot March 27, 2025 05:56

Copilot AI reviewed Mar 27, 2025

View reviewed changes

shogo82148 added 2 commits March 27, 2025 14:58

fix: update error message formatting in DecodeError for consistency

022a320

enhance: include field key in error details for improved debugging

3676ddb

shogo82148 merged commit a2158c0 into main Mar 27, 2025
22 checks passed

shogo82148 deleted the add-field-to-decode-error branch March 27, 2025 06:16

coderabbitai bot mentioned this pull request Mar 27, 2025

feat: add support for decoding into []any types #44

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Walkthrough

Changes

Sequence Diagram(s)

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