[ClangImporter] Add comment to the ClangImporterDependencyCollector

JDevlieghere · JDevlieghere · commit be3bed2fb427 · 2019-08-19T16:53:03.000-07:00
Add a comment to the ClangImporterDependencyCollector explaining that the FileCollector is used by LLDB to generate reproducers and is not involved in dependency collection in Swift. (cherry picked from commit 0a9149f)
diff --git a/lib/ClangImporter/ClangImporter.cpp b/lib/ClangImporter/ClangImporter.cpp
@@ -321,6 +321,8 @@ class BridgingPPTracker : public clang::PPCallbacks {
 class ClangImporterDependencyCollector : public clang::DependencyCollector
 {
   llvm::StringSet<> ExcludedPaths;
+  /// The FileCollector is used by LLDB to generate reproducers. It's not used
+  /// by Swift to track dependencies.
   std::shared_ptr<llvm::FileCollector> FileCollector;
   const bool TrackSystemDeps;
 

Original file line number	Diff line number	Diff line change
`@@ -321,6 +321,8 @@ class BridgingPPTracker : public clang::PPCallbacks {`
`321`	`321`	`class ClangImporterDependencyCollector : public clang::DependencyCollector`
`322`	`322`	`{`
`323`	`323`	`llvm::StringSet<> ExcludedPaths;`
	`324`	`+ /// The FileCollector is used by LLDB to generate reproducers. It's not used`
	`325`	`+ /// by Swift to track dependencies.`
`324`	`326`	`std::shared_ptr<llvm::FileCollector> FileCollector;`
`325`	`327`	`const bool TrackSystemDeps;`
`326`	`328`