lib/Sema/SemaStmtAttr.cpp

//===--- SemaStmtAttr.cpp - Statement Attribute Handling ------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//  This file implements stmt-related attribute processing.
//
//===----------------------------------------------------------------------===//

#include "clang/Sema/SemaInternal.h"
#include "TargetAttributesSema.h"
#include "clang/AST/ASTContext.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Sema/DelayedDiagnostic.h"
#include "clang/Sema/Lookup.h"
#include "llvm/ADT/StringExtras.h"
using namespace clang;
using namespace sema;


static Attr *ProcessStmtAttribute(Sema &S, Stmt *St, const AttributeList &A) {
  switch (A.getKind()) {
  default:
    // if we're here, then we parsed an attribute, but didn't recognize it as a
    // statement attribute => it is declaration attribute
    S.Diag(A.getRange().getBegin(), diag::warn_attribute_invalid_on_stmt) <<
      A.getName()->getName();
    return 0;
  }
}

StmtResult Sema::ProcessStmtAttributes(Stmt *S, AttributeList *AttrList,
                                       SourceRange Range) {
  AttrVec Attrs;
  for (const AttributeList* l = AttrList; l; l = l->getNext()) {
    if (Attr *a = ProcessStmtAttribute(*this, S, *l))
      Attrs.push_back(a);
  }

  if (Attrs.empty())
    return S;

  return ActOnAttributedStmt(Range.getBegin(), Attrs, S);
}