When the parser is live, print out the location and spelling of its current token.

For example:

Stack dump:
0.	Program arguments: clang t.cpp 
1.	t.cpp:4:8: current parser token: ';'
2.	t.cpp:3:1: parsing struct/union/class body 'x'
Abort

It is weird that the parser is always "underneath" any parse context 
actions, but the parser is created first.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66148 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/Parse/MinimalAction.cpp b/lib/Parse/MinimalAction.cpp
index 5238a89957..3b8694c5d7 100644
--- a/lib/Parse/MinimalAction.cpp
+++ b/lib/Parse/MinimalAction.cpp
@@ -19,6 +19,29 @@
 #include "llvm/Support/raw_ostream.h"
 using namespace clang;
 
+///  Out-of-line virtual destructor to provide home for Action class.
+ActionBase::~ActionBase() {}
+
+///  Out-of-line virtual destructor to provide home for Action class.
+Action::~Action() {}
+
+// Defined out-of-line here because of dependecy on AttributeList
+Action::DeclTy *Action::ActOnUsingDirective(Scope *CurScope,
+                                            SourceLocation UsingLoc,
+                                            SourceLocation NamespcLoc,
+                                            const CXXScopeSpec &SS,
+                                            SourceLocation IdentLoc,
+                                            IdentifierInfo *NamespcName,
+                                            AttributeList *AttrList) {
+  
+  // FIXME: Parser seems to assume that Action::ActOn* takes ownership over
+  // passed AttributeList, however other actions don't free it, is it
+  // temporary state or bug?
+  delete AttrList;
+  return 0;
+}
+
+
 void PrettyStackTraceDecl::print(llvm::raw_ostream &OS) const {
   if (Loc.isValid()) {
     Loc.print(OS, SM);