From: Ted Kremenek <kremenek@apple.com>
Date: Thu, 17 Apr 2008 21:23:07 +0000 (+0000)
Subject: Added "PreprocessorFactory", an interface for lazily creating Preprocessor objects... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ec6c574478a22008847d7ebc2498ef3336752096;p=clang

Added "PreprocessorFactory", an interface for lazily creating Preprocessor objects on-demand.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49868 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Lex/Preprocessor.h b/include/clang/Lex/Preprocessor.h
index 98edf5af7a..5fc4642dd8 100644
--- a/include/clang/Lex/Preprocessor.h
+++ b/include/clang/Lex/Preprocessor.h
@@ -524,6 +524,14 @@ public:
   void HandlePragmaDependency(Token &DependencyTok);
 };
 
+/// PreprocessorFactory - A generic factory interface for lazily creating
+///  Preprocessor objects on-demand when they are needed.
+class PreprocessorFactory {
+public:
+  virtual ~PreprocessorFactory();
+  virtual Preprocessor* CreatePreprocessor() = 0;  
+};
+  
 }  // end namespace clang
 
 #endif
diff --git a/lib/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index ebd3072866..6d08a36fde 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -40,6 +40,8 @@ using namespace clang;
 
 //===----------------------------------------------------------------------===//
 
+PreprocessorFactory::~PreprocessorFactory() {}
+
 Preprocessor::Preprocessor(Diagnostic &diags, const LangOptions &opts,
                            TargetInfo &target, SourceManager &SM, 
                            HeaderSearch &Headers)