1 files changed, 85 insertions, 0 deletions
diff --git a/lib/Sema/ParseAST.cpp b/lib/Sema/ParseAST.cpp
new file mode 100644
index 0000000..e2ee88a
--- /dev/null
+++ b/lib/Sema/ParseAST.cpp
@@ -0,0 +1,85 @@
+//===--- ParseAST.cpp - Provide the clang::ParseAST method ----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the clang::ParseAST method.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Sema/ParseAST.h"
+#include "Sema.h"
+#include "clang/Sema/SemaConsumer.h"
+#include "clang/Sema/ExternalSemaSource.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/ExternalASTSource.h"
+#include "clang/AST/Stmt.h"
+#include "clang/Parse/Parser.h"
+#include "llvm/ADT/OwningPtr.h"
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// Public interface to the file
+//===----------------------------------------------------------------------===//
+
+/// ParseAST - Parse the entire file specified, notifying the ASTConsumer as
+/// the file is parsed.  This inserts the parsed decls into the translation unit
+/// held by Ctx.
+///
+void clang::ParseAST(Preprocessor &PP, ASTConsumer *Consumer,
+                     ASTContext &Ctx, bool PrintStats,
+                     bool CompleteTranslationUnit) {
+  // Collect global stats on Decls/Stmts (until we have a module streamer).
+  if (PrintStats) {
+    Decl::CollectingStats(true);
+    Stmt::CollectingStats(true);
+  }
+
+  Sema S(PP, Ctx, *Consumer, CompleteTranslationUnit);
+  Parser P(PP, S);
+  PP.EnterMainSourceFile();
+    
+  // Initialize the parser.
+  P.Initialize();
+  
+  Consumer->Initialize(Ctx);
+  
+  if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumer))
+    SC->InitializeSema(S);
+
+  if (ExternalASTSource *External = Ctx.getExternalSource()) {
+    if (ExternalSemaSource *ExternalSema = 
+          dyn_cast<ExternalSemaSource>(External))
+      ExternalSema->InitializeSema(S);
+
+    External->StartTranslationUnit(Consumer);
+  }
+
+  Parser::DeclGroupPtrTy ADecl;
+  
+  while (!P.ParseTopLevelDecl(ADecl)) {  // Not end of file.
+    // If we got a null return and something *was* parsed, ignore it.  This
+    // is due to a top-level semicolon, an action override, or a parse error
+    // skipping something.
+    if (ADecl)
+      Consumer->HandleTopLevelDecl(ADecl.getAsVal<DeclGroupRef>());
+  };
+  
+  Consumer->HandleTranslationUnit(Ctx);
+
+  if (PrintStats) {
+    fprintf(stderr, "\nSTATISTICS:\n");
+    P.getActions().PrintStats();
+    Ctx.PrintStats();
+    Decl::PrintStats();
+    Stmt::PrintStats();
+    Consumer->PrintStats();
+    
+    Decl::CollectingStats(false);
+    Stmt::CollectingStats(false);
+  }
+}