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maintain proper context in metadata.root and parent getters #1917

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@CodeMan62 CodeMan62 commented Apr 11, 2025

maintain proper context in metadata.root and parent getters

Closes #1904

✅ Checklist

  • I have followed every step in the contributing guide
  • The PR title follows the convention.
  • I ran and tested the code works

Testing

Created several test cases to validate the fix:

  • Created a simple test that demonstrates the issue by showing how this-binding works in class methods
  • Verified that our fix properly maintains context when methods are chained
  • Confirmed that metadata operations are correctly captured regardless of where they're called from

Changelog

Fixed an issue where metadata.root.set() and similar methods would fail when used inside JavaScript classes. The fix properly maintains context when chaining method calls by storing local references to return objects instead of using this.root and this.parent.


Screenshots

N/A - This is an internal API fix with no visual changes.

Summary by CodeRabbit

  • Refactor
    • Improved internal metadata update operations for more consistent method chaining and context handling.
    • No changes to public functionality—users will experience the same behavior with enhanced reliability.

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changeset-bot bot commented Apr 11, 2025

🦋 Changeset detected

Latest commit: b1009ea

The changes in this PR will be included in the next version bump.

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coderabbitai bot commented Apr 11, 2025

Caution

Review failed

The pull request is closed.

"""

Walkthrough

The pull request refactors the implementations of the getter methods in both the StandardMetadataManager and NoopRunMetadataManager classes. Local variables are now used to capture the context previously accessed via this, ensuring consistent behavior in the updater objects. Methods such as set, update, and stream now return locally defined updater objects for proper method chaining. The underlying functionality remains unchanged, with improvements in context management and internal clarity.

Changes

Files Change Summary
packages/core/.../runMetadata/manager.ts Refactored StandardMetadataManager: Introduced local variable self and local updater objects (parentUpdater, rootUpdater) for context management in getters; updated the stream method to use self.doStream.
packages/core/.../runMetadata/noopManager.ts Refactored NoopRunMetadataManager: Utilized local updater objects in parent and root getters; updated the update method to return the local updater; added clarifying comments to support the context changes.

Sequence Diagram(s)

sequenceDiagram
  participant Client
  participant Manager as MetadataManager
  participant Updater as RunMetadataUpdater

  Client->>Manager: Invoke getter (root/parent)
  Manager-->>Client: Return updater (using local self & updater variable)
  Client->>Updater: Call set/update method
  Updater->>Manager: Append operation using local context
  Updater-->>Client: Return updater for chaining
  Client->>Updater: Invoke stream
  Updater->>Manager: Execute stream via self.doStream
  Manager-->>Updater: Return stream result
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Assessment against linked issues

Objective Addressed Explanation
[TRI-5140] The metadata.set function doesn't work when used inside a JS class ([#1904])

Possibly related PRs

Poem

I'm a bunny in the code, swift and bright,
Hoping through updates with all my might,
Local self guides each hop and play,
Chain calls bounce in a clear, new way,
Carrots of context, crisp and true—
My rabbit code sings a revamped view! 🐰
"""

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@ericallam ericallam merged commit e0fd064 into triggerdotdev:main Apr 17, 2025
5 of 7 checks passed
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[TRI-5140] The metadata.set function doesn't work when used inside a JS class
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