//===--- LLVM.h - Import various common LLVM datatypes ----------*- C++ -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This file forward declares and imports various common LLVM datatypes that
// swift wants to use unqualified.
//
//===----------------------------------------------------------------------===//

#ifndef SWIFT_BASIC_LLVM_H
#define SWIFT_BASIC_LLVM_H

// Do not proliferate #includes here, require clients to #include their
// dependencies.
// Casting.h has complex templates that cannot be easily forward declared.
#include "Casting.h"
// None.h includes an enumerator that is desired & cannot be forward declared
// without a definition of NoneType.
#include "None.h"

// Forward declarations.
namespace llvm {
    // Containers.
    class StringRef;
    class StringLiteral;
    class Twine;
    template <typename T> class SmallPtrSetImpl;
    template <typename T, unsigned N> class SmallPtrSet;
    template <typename T> class SmallVectorImpl;
    template <typename T, unsigned N> class SmallVector;
    template <unsigned N> class SmallString;
    template <typename T, unsigned N> class SmallSetVector;
    template<typename T> class ArrayRef;
    template<typename T> class MutableArrayRef;
    template<typename T> class TinyPtrVector;
    template<typename T> class Optional;
    template <typename PT1, typename PT2> class PointerUnion;
    class SmallBitVector;
    
    // Other common classes.
    class raw_ostream;
    class APInt;
    class APFloat;
    template <typename Fn> class function_ref;
} // end namespace llvm


namespace swift {
    // Casting operators.
    using llvm::isa;
    using llvm::cast;
    using llvm::dyn_cast;
    using llvm::dyn_cast_or_null;
    using llvm::cast_or_null;
    
    // Containers.
    using llvm::None;
    using llvm::Optional;
    using llvm::SmallPtrSetImpl;
    using llvm::SmallPtrSet;
    using llvm::SmallString;
    using llvm::StringRef;
    using llvm::StringLiteral;
    using llvm::Twine;
    using llvm::SmallVectorImpl;
    using llvm::SmallVector;
    using llvm::ArrayRef;
    using llvm::MutableArrayRef;
    using llvm::TinyPtrVector;
    using llvm::PointerUnion;
    using llvm::SmallSetVector;
    using llvm::SmallBitVector;
    
    // Other common classes.
    using llvm::APFloat;
    using llvm::APInt;
    using llvm::function_ref;
    using llvm::NoneType;
    using llvm::raw_ostream;
} // end namespace swift

#endif // SWIFT_BASIC_LLVM_H