Extend the preprocessing record and libclang with support for
inclusion directives, keeping track of every #include, #import,
etc. in the translation unit. We keep track of the source location and
kind of the inclusion, how the file name was spelled, and the
underlying file to which the inclusion resolved.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116952 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 722e2cb..c944883 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -555,6 +555,13 @@
           
           continue;
         }
+        
+        if (InclusionDirective *ID = dyn_cast<InclusionDirective>(*E)) {
+          if (Visit(MakeInclusionDirectiveCursor(ID, CXXUnit)))
+            return true;
+          
+          continue;
+        }
       }
     }
     return false;
@@ -2565,6 +2572,9 @@
     return createCXString(getCursorMacroDefinition(C)->getName()
                                                            ->getNameStart());
 
+  if (C.kind == CXCursor_InclusionDirective)
+    return createCXString(getCursorInclusionDirective(C)->getFileName());
+      
   if (clang_isDeclaration(C.kind))
     return getDeclSpelling(getCursorDecl(C));
 
@@ -2757,6 +2767,8 @@
     return createCXString("macro definition");
   case CXCursor_MacroInstantiation:
     return createCXString("macro instantiation");
+  case CXCursor_InclusionDirective:
+    return createCXString("inclusion directive");
   case CXCursor_Namespace:
     return createCXString("Namespace");
   case CXCursor_LinkageSpec:
@@ -2977,7 +2989,13 @@
     SourceLocation L = cxcursor::getCursorMacroDefinition(C)->getLocation();
     return cxloc::translateSourceLocation(getCursorContext(C), L);
   }
-  
+
+  if (C.kind == CXCursor_InclusionDirective) {
+    SourceLocation L
+      = cxcursor::getCursorInclusionDirective(C)->getSourceRange().getBegin();
+    return cxloc::translateSourceLocation(getCursorContext(C), L);
+  }
+
   if (C.kind < CXCursor_FirstDecl || C.kind > CXCursor_LastDecl)
     return clang_getNullLocation();
 
@@ -3043,12 +3061,14 @@
 
   if (C.kind == CXCursor_MacroDefinition)
     return cxcursor::getCursorMacroDefinition(C)->getSourceRange();
-  
+
+  if (C.kind == CXCursor_InclusionDirective)
+    return cxcursor::getCursorInclusionDirective(C)->getSourceRange();
+
   if (C.kind >= CXCursor_FirstDecl && C.kind <= CXCursor_LastDecl)
     return getCursorDecl(C)->getSourceRange();
 
-  return SourceRange();
-}
+  return SourceRange();}
 
 extern "C" {
 
@@ -4149,6 +4169,14 @@
   delete [] overridden;
 }
 
+CXFile clang_getIncludedFile(CXCursor cursor) {
+  if (cursor.kind != CXCursor_InclusionDirective)
+    return 0;
+  
+  InclusionDirective *ID = getCursorInclusionDirective(cursor);
+  return (void *)ID->getFile();
+}
+  
 } // end: extern "C"