[NFC] Delete ReferencedNameTracker

Author: CodaFi

include/swift/AST/Module.h

@@ -22,7 +22,6 @@
 #include "swift/AST/Identifier.h"
 #include "swift/AST/LookupKinds.h"
 #include "swift/AST/RawComment.h"
-#include "swift/AST/ReferencedNameTracker.h"
 #include "swift/AST/Type.h"
 #include "swift/Basic/Compiler.h"
 #include "swift/Basic/OptionSet.h"
@@ -69,7 +68,6 @@ namespace swift {
   class ProtocolConformance;
   class ProtocolDecl;
   struct PrintOptions;
-  class ReferencedNameTracker;
   class Token;
   class TupleType;
   class Type;

include/swift/AST/ReferencedNameTracker.h

@@ -137,9 +137,6 @@ class SourceFile final : public FileUnit {
   /// This is set during type checking.
   TypeRefinementContext *TRC = nullptr;
 
-  /// If non-null, used to track name lookups that happen within this file.
-  Optional<ReferencedNameTracker> RequestReferencedNames;
-
   /// Either the class marked \@NS/UIApplicationMain or the synthesized FuncDecl
   /// that calls main on the type marked @main.
   Decl *MainDecl = nullptr;
@@ -439,25 +436,6 @@ class SourceFile final : public FileUnit {
 
   virtual bool walk(ASTWalker &walker) override;
 
-  ReferencedNameTracker *getRequestBasedReferencedNameTracker() {
-    return RequestReferencedNames ? RequestReferencedNames.getPointer() : nullptr;
-  }
-  const ReferencedNameTracker *getRequestBasedReferencedNameTracker() const {
-    return RequestReferencedNames ? RequestReferencedNames.getPointer() : nullptr;
-  }
-
-  /// Creates and installs the referenced name trackers in this source file.
-  ///
-  /// This entrypoint must be called before incremental compilation can proceed,
-  /// else reference dependencies will not be registered.
-  void createReferencedNameTracker();
-
-  /// Retrieves the appropriate referenced name tracker instance.
-  ///
-  /// If incremental dependencies tracking is not enabled or \c createReferencedNameTracker()
-  /// has not been invoked on this source file, the result is \c nullptr.
-  const ReferencedNameTracker *getConfiguredReferencedNameTracker() const;
-
   /// The buffer ID for the file that was imported, or None if there
   /// is no associated buffer.
   Optional<unsigned> getBufferID() const {

include/swift/AST/SourceFile.h

@@ -30,10 +30,8 @@ class SourceFile;
 
 // MARK: - DependencyVerifier
 
-bool verifyDependencies(SourceManager &SM, const DependencyTracker &DT,
-                        ArrayRef<FileUnit *> SFs);
-bool verifyDependencies(SourceManager &SM, const DependencyTracker &DT,
-                        ArrayRef<SourceFile *> SFs);
+bool verifyDependencies(SourceManager &SM, ArrayRef<FileUnit *> SFs);
+bool verifyDependencies(SourceManager &SM, ArrayRef<SourceFile *> SFs);
 
 // MARK: - DiagnosticVerifier
 struct ExpectedFixIt;

include/swift/Frontend/DiagnosticVerifier.h

@@ -67,7 +67,6 @@ add_swift_host_library(swiftAST STATIC
   PrettyStackTrace.cpp
   ProtocolConformance.cpp
   RawComment.cpp
-  ReferencedNameTracker.cpp
   RequirementEnvironment.cpp
   SyntaxASTMap.cpp
   SILLayout.cpp

lib/AST/CMakeLists.txt

@@ -36,7 +36,6 @@
 #include "swift/AST/PrettyStackTrace.h"
 #include "swift/AST/PrintOptions.h"
 #include "swift/AST/ProtocolConformance.h"
-#include "swift/AST/ReferencedNameTracker.h"
 #include "swift/AST/SourceFile.h"
 #include "swift/AST/SynthesizedFileUnit.h"
 #include "swift/AST/TypeCheckRequests.h"
@@ -2638,16 +2637,6 @@ void SourceFile::setTypeRefinementContext(TypeRefinementContext *Root) {
   TRC = Root;
 }
 
-void SourceFile::createReferencedNameTracker() {
-  assert(!RequestReferencedNames && "This file already has a name tracker.");
-  RequestReferencedNames.emplace(ReferencedNameTracker());
-}
-
-const ReferencedNameTracker *
-SourceFile::getConfiguredReferencedNameTracker() const {
-  return getRequestBasedReferencedNameTracker();
-}
-
 ArrayRef<OpaqueTypeDecl *> SourceFile::getOpaqueReturnTypeDecls() {
   for (auto *vd : UnvalidatedDeclsWithOpaqueReturnTypes.takeVector()) {
     if (auto opaqueDecl = vd->getOpaqueResultTypeDecl()) {

lib/AST/Module.cpp

@@ -27,7 +27,6 @@
 #include "swift/AST/ModuleNameLookup.h"
 #include "swift/AST/NameLookupRequests.h"
 #include "swift/AST/ParameterList.h"
-#include "swift/AST/ReferencedNameTracker.h"
 #include "swift/AST/SourceFile.h"
 #include "swift/Basic/Debug.h"
 #include "swift/Basic/SourceManager.h"

lib/AST/NameLookup.cpp

@@ -27,7 +27,6 @@
 #include "swift/AST/NameLookup.h"
 #include "swift/AST/NameLookupRequests.h"
 #include "swift/AST/ParameterList.h"
-#include "swift/AST/ReferencedNameTracker.h"
 #include "swift/AST/SourceFile.h"
 #include "swift/Basic/Debug.h"
 #include "swift/Basic/STLExtras.h"

lib/AST/ReferencedNameTracker.cpp

@@ -893,7 +893,6 @@ SourceFile *CompilerInstance::createSourceFileForMainModule(
   if (isPrimary) {
     PrimarySourceFiles.push_back(inputFile);
     inputFile->enableInterfaceHash();
-    inputFile->createReferencedNameTracker();
   }
 
   if (bufferID == SourceMgr.getCodeCompletionBufferID()) {