1//===--- LLVM.h - Import various common LLVM datatypes ----------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9/// \file
10/// Forward-declares and imports various common LLVM datatypes that
11/// clang wants to use unqualified.
12///
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_CLANG_BASIC_LLVM_H
16#define LLVM_CLANG_BASIC_LLVM_H
17
18// Do not proliferate #includes here, require clients to #include their
19// dependencies.
20// Casting.h has complex templates that cannot be easily forward declared.
21#include "llvm/Support/Casting.h"
22// None.h includes an enumerator that is desired & cannot be forward declared
23// without a definition of NoneType.
24#include "llvm/ADT/None.h"
25
26namespace llvm {
27 // ADT's.
28 class StringRef;
29 class Twine;
30 class VersionTuple;
31 template<typename T> class ArrayRef;
32 template<typename T> class MutableArrayRef;
33 template<typename T> class OwningArrayRef;
34 template<unsigned InternalLen> class SmallString;
35 template<typename T, unsigned N> class SmallVector;
36 template<typename T> class SmallVectorImpl;
37 template<typename T> class Optional;
38 template <class T> class Expected;
39
40 template<typename T>
41 struct SaveAndRestore;
42
43 // Reference counting.
44 template <typename T> class IntrusiveRefCntPtr;
45 template <typename T> struct IntrusiveRefCntPtrInfo;
46 template <class Derived> class RefCountedBase;
47
48 class raw_ostream;
49 class raw_pwrite_stream;
50 // TODO: DenseMap, ...
51}
52
53
54namespace clang {
55 // Casting operators.
56 using llvm::isa;
57 using llvm::cast;
58 using llvm::dyn_cast;
59 using llvm::dyn_cast_or_null;
60 using llvm::cast_or_null;
61
62 // ADT's.
63 using llvm::ArrayRef;
64 using llvm::MutableArrayRef;
65 using llvm::None;
66 using llvm::Optional;
67 using llvm::OwningArrayRef;
68 using llvm::SaveAndRestore;
69 using llvm::SmallString;
70 using llvm::SmallVector;
71 using llvm::SmallVectorImpl;
72 using llvm::StringRef;
73 using llvm::Twine;
74 using llvm::VersionTuple;
75
76 // Error handling.
77 using llvm::Expected;
78
79 // Reference counting.
80 using llvm::IntrusiveRefCntPtr;
81 using llvm::IntrusiveRefCntPtrInfo;
82 using llvm::RefCountedBase;
83
84 using llvm::raw_ostream;
85 using llvm::raw_pwrite_stream;
86} // end namespace clang.
87
88#endif
89