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 26 namespace 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 54 namespace 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