Serialize `#pragma comment`.

`#pragma comment` was handled by Sema calling a function on ASTConsumer, and
CodeGen then implementing this function and writing things to its output.

Instead, introduce a PragmaCommentDecl AST node and hang one off the
TranslationUnitDecl for every `#pragma comment` line, and then use the regular
serialization machinery. (Since PragmaCommentDecl has codegen relevance, it's
eagerly deserialized.)

http://reviews.llvm.org/D17799

llvm-svn: 262493

1 files changed, 16 insertions, 0 deletions

diff --git a/clang/lib/AST/ASTDumper.cpp b/clang/lib/AST/ASTDumper.cpp
index 809b1dd6bd4..e0ef80d475f 100644
--- a/clang/lib/AST/ASTDumper.cpp
+++ b/clang/lib/AST/ASTDumper.cpp
@@ -426,6 +426,7 @@ namespace  {
     void VisitVarDecl(const VarDecl *D);
     void VisitFileScopeAsmDecl(const FileScopeAsmDecl *D);
     void VisitImportDecl(const ImportDecl *D);
+    void VisitPragmaCommentDecl(const PragmaCommentDecl *D);
 
     // C++ Decls
     void VisitNamespaceDecl(const NamespaceDecl *D);
@@ -1200,6 +1201,21 @@ void ASTDumper::VisitImportDecl(const ImportDecl *D) {
   OS << ' ' << D->getImportedModule()->getFullModuleName();
 }
 
+void ASTDumper::VisitPragmaCommentDecl(const PragmaCommentDecl *D) {
+  OS << ' ';
+  switch (D->getCommentKind()) {
+  case PCK_Unknown:  llvm_unreachable("unexpected pragma comment kind");
+  case PCK_Compiler: OS << "compiler"; break;
+  case PCK_ExeStr:   OS << "exestr"; break;
+  case PCK_Lib:      OS << "lib"; break;
+  case PCK_Linker:   OS << "linker"; break;
+  case PCK_User:     OS << "user"; break;
+  }
+  StringRef Arg = D->getArg();
+  if (!Arg.empty())
+    OS << " \"" << Arg << "\"";
+}
+
 //===----------------------------------------------------------------------===//
 // C++ Declarations
 //===----------------------------------------------------------------------===//