1 //===--- LLVM.h - Import various common LLVM datatypes ----------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 /// \file
11 /// \brief Forward-declares and imports various common LLVM datatypes that
12 /// clang wants to use unqualified.
13 ///
14 //===----------------------------------------------------------------------===//
15 
16 #ifndef LLVM_CLANG_BASIC_LLVM_H
17 #define LLVM_CLANG_BASIC_LLVM_H
18 
19 // Do not proliferate #includes here, require clients to #include their
20 // dependencies.
21 // Casting.h has complex templates that cannot be easily forward declared.
22 #include "llvm/Support/Casting.h"
23 // None.h includes an enumerator that is desired & cannot be forward declared
24 // without a definition of NoneType.
25 #include "llvm/ADT/None.h"
26 
27 namespace llvm {
28   // ADT's.
29   class StringRef;
30   class Twine;
31   template<typename T> class ArrayRef;
32   template<typename T> class MutableArrayRef;
33   template<unsigned InternalLen> class SmallString;
34   template<typename T, unsigned N> class SmallVector;
35   template<typename T> class SmallVectorImpl;
36   template<typename T> class Optional;
37 
38   template<typename T>
39   struct SaveAndRestore;
40 
41   // Reference counting.
42   template <typename T> class IntrusiveRefCntPtr;
43   template <typename T> struct IntrusiveRefCntPtrInfo;
44   template <class Derived> class RefCountedBase;
45   class RefCountedBaseVPTR;
46 
47   class raw_ostream;
48   // TODO: DenseMap, ...
49 }
50 
51 
52 namespace clang {
53   // Casting operators.
54   using llvm::isa;
55   using llvm::cast;
56   using llvm::dyn_cast;
57   using llvm::dyn_cast_or_null;
58   using llvm::cast_or_null;
59 
60   // ADT's.
61   using llvm::None;
62   using llvm::Optional;
63   using llvm::StringRef;
64   using llvm::Twine;
65   using llvm::ArrayRef;
66   using llvm::MutableArrayRef;
67   using llvm::SmallString;
68   using llvm::SmallVector;
69   using llvm::SmallVectorImpl;
70   using llvm::SaveAndRestore;
71 
72   // Reference counting.
73   using llvm::IntrusiveRefCntPtr;
74   using llvm::IntrusiveRefCntPtrInfo;
75   using llvm::RefCountedBase;
76   using llvm::RefCountedBaseVPTR;
77 
78   using llvm::raw_ostream;
79 } // end namespace clang.
80 
81 #endif
82