[arkivanov-bot]

Re-applies #1049 after #1065 (the temporary revert for the 3.6.0 release).

Restores the empty DefaultComponentContext() constructor (backed by a default LifecycleRegistry), updates the binary-compatibility API dumps, removes the sample PreviewComponentContext helper, and points the sample preview components at DefaultComponentContext() again.

Requested in #1065 (comment).

Summary by CodeRabbit

• New Features
  • Added a no-argument constructor for DefaultComponentContext, making it simpler to create a context with a default lifecycle.
• Refactor
  • Updated sample preview components to create their own default contexts rather than sharing one.

[coderabbitai]

No actionable comments were generated in the recent review.

Walkthrough

DefaultComponentContext now has a public no-argument constructor. Preview components use separate instances of this constructor instead of a shared preview context.

Changes: Default preview contexts

Layer / File(s)	Summary
Add the no-argument constructor decompose/src/commonMain/kotlin/com/arkivanov/decompose/DefaultComponentContext.kt, decompose/api/android/decompose.api, decompose/api/jvm/decompose.api	The constructor creates a LifecycleRegistry and delegates with null state keeper, instance keeper, and back handler. Android and JVM API declarations include the constructor.
Use separate contexts in previews sample/shared/shared/src/commonMain/kotlin/com/arkivanov/sample/shared/PreviewComponentContext.kt, sample/shared/shared/src/commonMain/kotlin/com/arkivanov/sample/shared/counters/PreviewCountersComponent.kt, sample/shared/shared/src/commonMain/kotlin/com/arkivanov/sample/shared/multipane/PreviewMultiPaneComponent.kt, sample/shared/shared/src/commonMain/kotlin/com/arkivanov/sample/shared/root/PreviewRootComponent.kt	The preview components delegate to newly constructed DefaultComponentContext instances. The shared PreviewComponentContext object is removed.

Estimated code review effort: 2 (Simple) | ~8 minutes

Change: Feature

Possibly related PRs

• arkivanov/Decompose#1065: Removes the constructor and restores shared preview-context use, which this PR reverses.
• arkivanov/Decompose#1049: Adds the same constructor and updates preview components to use it.

Suggested reviewers: arkivanov

Merge Risk: Minimal · up to 25b59

The constructor restores the preview context setup, with separate instances for previews. No merge-blocking risk was identified.

Pre-merge checks: 5

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title describes the main API change: callers can construct DefaultComponentContext without providing a Lifecycle.
Docstring Coverage		No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 0 functions across 4 files. (2 skipped: 2 unsupported.)

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Recent review info

Run configuration

• Source mode: Auto
• Repository: Unavailable
• Branch: Unavailable
• File: No configuration file from this repository applied
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• Layers: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: e2fc91ba-dbde-4a00-902c-5eedce98cc5e

Commits

Reviewing files that changed from the base of the PR and between a9be46a and 25b5934.

Files selected for processing: 7

• decompose/api/android/decompose.api
• decompose/api/jvm/decompose.api
• decompose/src/commonMain/kotlin/com/arkivanov/decompose/DefaultComponentContext.kt
• sample/shared/shared/src/commonMain/kotlin/com/arkivanov/sample/shared/PreviewComponentContext.kt
• sample/shared/shared/src/commonMain/kotlin/com/arkivanov/sample/shared/counters/PreviewCountersComponent.kt
• sample/shared/shared/src/commonMain/kotlin/com/arkivanov/sample/shared/multipane/PreviewMultiPaneComponent.kt
• sample/shared/shared/src/commonMain/kotlin/com/arkivanov/sample/shared/root/PreviewRootComponent.kt

Files with no reviewable changes: 1

• sample/shared/shared/src/commonMain/kotlin/com/arkivanov/sample/shared/PreviewComponentContext.kt

Included review availability: This review used your included allowance. Your plan provides up to 8 included reviews per hour; 7 remain after this review.