Structured comment parsing, first step.

* Retain comments in the AST
* Serialize/deserialize comments
* Find comments attached to a certain Decl
* Expose raw comment text and SourceRange via libclang


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158771 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 29 insertions, 1 deletions

diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 7fb944ddd3..df8adb419e 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -5676,7 +5676,35 @@ CXFile clang_getIncludedFile(CXCursor cursor) {
   InclusionDirective *ID = getCursorInclusionDirective(cursor);
   return (void *)ID->getFile();
 }
-  
+
+CXSourceRange clang_Cursor_getCommentRange(CXCursor C) {
+  if (!clang_isDeclaration(C.kind))
+    return clang_getNullRange();
+
+  const Decl *D = getCursorDecl(C);
+  ASTContext &Context = getCursorContext(C);
+  const RawComment *RC = Context.getRawCommentForDecl(D);
+  if (!RC)
+    return clang_getNullRange();
+
+  return cxloc::translateSourceRange(Context, RC->getSourceRange());
+}
+
+CXString clang_Cursor_getRawCommentText(CXCursor C) {
+  if (!clang_isDeclaration(C.kind))
+    return createCXString((const char *) NULL);
+
+  const Decl *D = getCursorDecl(C);
+  ASTContext &Context = getCursorContext(C);
+  const RawComment *RC = Context.getRawCommentForDecl(D);
+  StringRef RawText = RC ? RC->getRawText(Context.getSourceManager()) :
+                           StringRef();
+
+  // Don't duplicate the string because RawText points directly into source
+  // code.
+  return createCXString(RawText, false);
+}
+
 } // end: extern "C"