swift6-check

Swift 6 Concurrency Check

Project context: Values in angle brackets below (e.g. <scheme>, <JIRA_KEY>, <flag-key-enum>) are resolved at runtime — detect them from the project (xcodebuild -list -json for the scheme, git/gh for repo & owner, the branch name for the Jira key, a codebase search for flag/font files), or ask if they cannot be inferred. This plugin ships no per-project config.

Analyze the current Swift 6 strict concurrency readiness. This is a dry-run — no code is modified.

If $ARGUMENTS is provided, scope the check to that category only (e.g., mainactor, singletons, dispatch-queue, completion-handlers, sendable, delegates). If no argument, run a full scan.

Steps

1. Read Current Status

Read docs/swift6-migration-status.md to understand what has already been migrated.

2. Run Category Scans

For each category (or the specified one), run targeted searches:

@MainActor on ViewModels

# ViewModels WITHOUT @MainActor
grep -rl "class.*ViewModel.*ObservableObject" <scheme>/ --include="*.swift" | while read f; do
  grep -L "@MainActor" "$f"
done

Report: total ViewModels, annotated count, remaining count, list of unannotated files.

DispatchQueue.main.async

grep -rn "DispatchQueue\.main\.async" <scheme>/ --include="*.swift"

Report: total occurrences, files affected, top 10 files by count.

Completion Handlers

grep -rn "completion:.*@escaping" <scheme>/ --include="*.swift"

Report: total occurrences, files affected, top 10 files by count.

Mutable Singletons

grep -rn "static var shared\|static let shared" <scheme>/ --include="*.swift"

For each singleton, check if it has @MainActor, actor isolation, or lock synchronization. Report: total singletons, protected count, unprotected count, list with file paths.

@Sendable Coverage

# Classes without @Sendable or Sendable conformance
grep -rn "^class \|^final class \|^public class \|^public final class " <scheme>/ --include="*.swift" | grep -v "@Sendable\|: Sendable"

Report: total classes, Sendable count, remaining count.