feat(console): implement console.table()

[ParthMozarkar]

Summary

Implements the console.table() method for the console builtin as requested in #3806.

This adds spec-aligned tabular rendering support to Boa's console implementation.

Implementation Details

• Added a table method to the Logger trait.
• Implemented structured tabular data extraction following the behavior described in the WHATWG Console specification.
• Supports:
  • Objects
  • Arrays of objects
  • Arrays of primitives
• Implements ASCII-based column formatting consistent with existing console output.
• Handles optional properties argument to allow column filtering.
• Ensures integration with Boa’s existing logging infrastructure (no direct stdout usage).

Behavior

• Extracts enumerable own properties from input.
• Computes column headers dynamically.
• Aligns output into a readable ASCII table format.
• Returns undefined, matching browser console behavior.

Tests

• Added unit tests in core/runtime/src/console/tests.rs.
• Tests cover:
  • Basic object input
  • Array input
  • Column filtering
  • Edge cases (empty input)

Notes

• Implementation follows the current internal console architecture.
• No changes to existing console behavior.
• Passes cargo fmt, cargo clippy, and all tests.

Fixes #3806

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	52,963	52,963	0
Passed	49,666	49,666	0
Ignored	2,284	2,284	0
Failed	1,013	1,013	0
Panics	0	0	0
Conformance	93.77%	93.77%	0.00%

Tested main commit: 70a6df29729f8b98fc303baebdb4a5676fdfd839
Tested PR commit: 31ad6733d6252cfd1806dc5f563dae3dd2050e03
Compare commits: 70a6df2...31ad673

[jedel1043]

Triggering this lint should've given you a hint that this code is kind of hard to follow 😅

Can you split it in smaller pieces?

[hansl]

Idea; we could have a crate feature to use the comfy-table crate. Bonus; it supports TTY terminals (setting width accordingly) and non-ANSI (using + and - and | instead of unicode box characters). It would also simplify the code.

[ParthMozarkar]

Thanks for the feedback!

You're right the implementation grew larger than it should have.

I'll refactor the logic into smaller helper functions to improve readability and remove the clippy allowance.

Regarding the comfy-table suggestion, would you prefer keeping the implementation internal, or introducing a feature-gated dependency for formatting?

I'll push an update shortly.

[jedel1043]

Actually, I'd like to see if all this code can be replaced with comfy-table. If not, we can add it in a separate PR with a feature.

[ParthMozarkar]

Thanks for the suggestion!

I'll explore whether the current implementation can be fully replaced using comfy-table. If it works cleanly, I'll update this PR accordingly.

If not, I'll open a separate PR introducing it as a feature as suggested.

[ParthMozarkar]

Hi @jedel1043,

I've pushed the refactored implementation addressing the review comments.

Changes include:

Split the logic into smaller helper functions to improve readability.

Removed the clippy::too_many_lines allowance.

Improved structure and reduced complexity where possible.

Ensured proper error propagation (no expect() in runtime paths).

Verified with cargo check, cargo test, and cargo clippy.

Please let me know if you'd like any further refinements. Thanks again for the feedback !!

[jedel1043]

Didn't see you address if you tried implementing everything with comfy-table. Was that done or are you planning on doing it in a later PR?

[ParthMozarkar]

Didn't see you address if you tried implementing everything with comfy-table. Was that done or are you planning on doing it in a later PR?

I've currently only implemented it for the test output formatting. I am planning on migrating the actual console.table engine logic to use comfy-table entirely in a later PR to keep this PR's scope focused...

[codecov]

Codecov Report

❌ Patch coverage is 90.56604% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 57.51%. Comparing base (6ddc2b4) to head (31ad673).
⚠️ Report is 768 commits behind head on main.

Files with missing lines	Patch %	Lines
core/runtime/src/console/mod.rs	90.56%	10 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #4690       +/-   ##
===========================================
+ Coverage   47.24%   57.51%   +10.27%     
===========================================
  Files         476      556       +80     
  Lines       46892    60817    +13925     
===========================================
+ Hits        22154    34981    +12827     
- Misses      24738    25836     +1098     

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