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CompoundLayout - Changed to foreach for better release optimizations#6015

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snakefoot merged 1 commit intoNLog:devfrom
snakefoot:dev
Oct 5, 2025
Merged

CompoundLayout - Changed to foreach for better release optimizations#6015
snakefoot merged 1 commit intoNLog:devfrom
snakefoot:dev

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@snakefoot snakefoot commented Oct 5, 2025 •
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Release-mode can optimize bounds-checking on newer NET platforms with foreach.

@snakefoot snakefoot added this to the 6.0.5 milestone Oct 5, 2025
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coderabbitai bot commented Oct 5, 2025 •
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Walkthrough

Refactors CompoundLayout by replacing the public mutable Layouts with a private List exposed via a read-only property, removes the public constructor, and updates all internal references to use the private backing field for initialization and iteration.

Changes

Cohort / File(s) Summary
CompoundLayout refactor
src/NLog/Layouts/CompoundLayout.cs		 Replaced public setter/property for Layouts with a read-only property backed by a private List initialized inline; removed the public constructor; redirected all initialization, iteration, and modification to the private _layouts field and expression-bodied getter.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

Hop hop! I tidied up the nest,
Hid the lists, made access blessed.
Constructors hopped right out of sight,
A private burrow keeps things tight.
With layouts lined in tidy rows,
This rabbit’s code more smoothly flows. 🐇✨

Pre-merge checks and finishing touches

❌ Failed checks (2 warnings)
Check name Status Explanation Resolution
Title Check ⚠️ Warning The pull request title mentions changing to foreach for release optimizations, but the actual changes refactor CompoundLayout by replacing its public setter property with a read-only expression-bodied property backed by a private List and removing the public constructor, with no adjustments to foreach loops or release behavior, making the title misleading and off-target. Please update the title to clearly reflect the main change, for example “Make CompoundLayout.Layouts read-only with private backing field and remove public setter,” which accurately describes the refactor.
Description Check ⚠️ Warning The pull request has no author-provided description, leaving reviewers with no summary or context for the refactor of CompoundLayout, and therefore no meaningful information about the purpose or scope of the changes. Please add a concise description outlining the key changes, such as converting the Layouts property to a read-only expression-bodied property backed by a private List and removing the public constructor, to help reviewers understand the intent and scope of this pull request.
✅ Passed checks (1 passed)
Check name Status Explanation
Docstring Coverage ✅ Passed Docstring coverage is 80.00% which is sufficient. The required threshold is 80.00%.
✨ Finishing touches
  • 📝 Generate docstrings
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between afb553c and 220d461.

📒 Files selected for processing (1)
  • src/NLog/Layouts/CompoundLayout.cs (2 hunks)
🧰 Additional context used
🧬 Code graph analysis (1)
src/NLog/Layouts/CompoundLayout.cs (1)
src/NLog/Layouts/Layout.cs (13)
  • Layout (105-108)
  • Layout (116-119)
  • Layout (127-144)
  • Layout (149-155)
  • Layout (163-170)
  • Layout (382-412)
  • InitializeLayout (430-433)
  • Initialize (323-346)
  • Render (207-223)
  • Render (231-248)
  • CloseLayout (438-440)
  • Close (417-425)
  • ToStringWithNestedItems (504-512)
🔇 Additional comments (2)
src/NLog/Layouts/CompoundLayout.cs (2)

65-103: Foreach optimization achieved by iterating concrete type.

Using _layouts (List) directly instead of Layouts (IList) enables the compiler to leverage List<Layout>.Enumerator, a struct enumerator that avoids heap allocation and interface dispatch overhead. This optimization is particularly valuable in logging hot paths like RenderFormattedMessage.

59-60: Approve removal of the setter — no internal assignments of Layouts were found.

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sonarqubecloud bot commented Oct 5, 2025

Quality Gate Passed Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
85.7% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

@snakefoot snakefoot merged commit aaeb716 into NLog:dev Oct 5, 2025
5 of 6 checks passed
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