Delete libSyntax

Author: CodaFi

include/swift/AST/ASTContext.h

@@ -144,10 +144,6 @@ namespace rewriting {
   class RewriteContext;
 }
 
-namespace syntax {
-  class SyntaxArena;
-}
-
 namespace ide {
   class TypeCheckCompletionCallback;
 }
@@ -498,9 +494,6 @@ class ASTContext final {
                               setVector.size());
   }
 
-  /// Retrieve the syntax node memory manager for this context.
-  llvm::IntrusiveRefCntPtr<syntax::SyntaxArena> getSyntaxArena() const;
-
   /// Set a new stats reporter.
   void setStatsReporter(UnifiedStatsReporter *stats);
 

include/swift/AST/Decl.h

@@ -6769,8 +6769,7 @@ class AbstractFunctionDecl : public GenericContext, public ValueDecl {
     // FIXME: Remove 'Parsed' from this list once we can always delay
     //        parsing bodies. The -experimental-skip-*-function-bodies options
     //        do currently skip parsing, unless disabled through other means in
-    //        SourceFile::hasDelayedBodyParsing (eg. needing to build the full
-    //        syntax tree due to -verify-syntax-tree).
+    //        SourceFile::hasDelayedBodyParsing.
     assert(getBodyKind() == BodyKind::None ||
            getBodyKind() == BodyKind::Unparsed ||
            getBodyKind() == BodyKind::Parsed);

include/swift/CMakeLists.txt

@@ -9,7 +9,5 @@ if(SWIFT_INCLUDE_TOOLS)
                 ESCAPE_QUOTES @ONLY)
   add_subdirectory(AST)
   add_subdirectory(Option)
-  add_subdirectory(Parse)
-  add_subdirectory(Syntax)
 endif()
 

include/swift/Frontend/Frontend.h

@@ -37,7 +37,6 @@
 #include "swift/Migrator/MigratorOptions.h"
 #include "swift/Parse/CodeCompletionCallbacks.h"
 #include "swift/Parse/Parser.h"
-#include "swift/Parse/SyntaxParsingCache.h"
 #include "swift/Sema/SourceLoader.h"
 #include "swift/Serialization/Validation.h"
 #include "swift/Subsystems.h"
@@ -96,10 +95,6 @@ class CompilerInvocation {
   IRGenOptions IRGenOpts;
   TBDGenOptions TBDGenOpts;
   ModuleInterfaceOptions ModuleInterfaceOpts;
-  /// The \c SyntaxParsingCache to use when parsing the main file of this
-  /// invocation
-  SyntaxParsingCache *MainFileSyntaxParsingCache = nullptr;
-
   llvm::MemoryBuffer *CodeCompletionBuffer = nullptr;
 
   /// Code completion offset in bytes from the beginning of the main
@@ -296,14 +291,6 @@ class CompilerInvocation {
   IRGenOptions &getIRGenOptions() { return IRGenOpts; }
   const IRGenOptions &getIRGenOptions() const { return IRGenOpts; }
 
-  void setMainFileSyntaxParsingCache(SyntaxParsingCache *Cache) {
-    MainFileSyntaxParsingCache = Cache;
-  }
-
-  SyntaxParsingCache *getMainFileSyntaxParsingCache() const {
-    return MainFileSyntaxParsingCache;
-  }
-
   void setParseStdlib() {
     FrontendOpts.ParseStdlib = true;
   }

include/swift/IDE/CompletionLookup.h

@@ -28,7 +28,6 @@
 #include "swift/IDE/PossibleParamInfo.h"
 #include "swift/Sema/IDETypeChecking.h"
 #include "swift/Strings.h"
-#include "swift/Syntax/SyntaxKind.h"
 
 namespace swift {
 namespace ide {