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//===-- BuiltinTypeNodes.def - Metadata about BuiltinTypes ------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//  This file defines the database about various builtin singleton types.
//
//  BuiltinType::Id is the enumerator defining the type.
//
//  Context.SingletonId is the global singleton of this type.  Some global
//  singletons are shared by multiple types.
//
//    BUILTIN_TYPE(Id, SingletonId) - A builtin type that has not been
//    covered by any other #define.  Defining this macro covers all
//    the builtins.
//
//    SIGNED_TYPE(Id, SingletonId) - A signed integral type.
//
//    UNSIGNED_TYPE(Id, SingletonId) - An unsigned integral type.
//
//    FLOATING_TYPE(Id, SingletonId) - A floating-point type.
//
//    PLACEHOLDER_TYPE(Id, SingletonId) - A placeholder type.  Placeholder
//    types are used to perform context-sensitive checking of specific
//    forms of expression.
//
//    SHARED_SINGLETON_TYPE(Expansion) - The given expansion corresponds
//    to a builtin which uses a shared singleton type.
//
//===----------------------------------------------------------------------===//

#ifndef SIGNED_TYPE
#define SIGNED_TYPE(Id, SingletonId) BUILTIN_TYPE(Id, SingletonId)
#endif

#ifndef UNSIGNED_TYPE
#define UNSIGNED_TYPE(Id, SingletonId) BUILTIN_TYPE(Id, SingletonId)
#endif

#ifndef FLOATING_TYPE
#define FLOATING_TYPE(Id, SingletonId) BUILTIN_TYPE(Id, SingletonId)
#endif

#ifndef PLACEHOLDER_TYPE
#define PLACEHOLDER_TYPE(Id, SingletonId) BUILTIN_TYPE(Id, SingletonId)
#endif

#ifndef SHARED_SINGLETON_TYPE
#define SHARED_SINGLETON_TYPE(Expansion) Expansion
#endif

//===- Builtin Types ------------------------------------------------------===//

// void
BUILTIN_TYPE(Void, VoidTy)

//===- Unsigned Types -----------------------------------------------------===//

// 'bool' in C++, '_Bool' in C99
UNSIGNED_TYPE(Bool, BoolTy)

// 'char' for targets where it's unsigned
SHARED_SINGLETON_TYPE(UNSIGNED_TYPE(Char_U, CharTy))

// 'unsigned char', explicitly qualified
UNSIGNED_TYPE(UChar, UnsignedCharTy)

// 'wchar_t' for targets where it's unsigned
SHARED_SINGLETON_TYPE(UNSIGNED_TYPE(WChar_U, WCharTy))

// 'char16_t' in C++
UNSIGNED_TYPE(Char16, Char16Ty)

// 'char32_t' in C++
UNSIGNED_TYPE(Char32, Char32Ty)

// 'unsigned short'
UNSIGNED_TYPE(UShort, UnsignedShortTy)

// 'unsigned int'
UNSIGNED_TYPE(UInt, UnsignedIntTy)

// 'unsigned long'
UNSIGNED_TYPE(ULong, UnsignedLongTy)

// 'unsigned long long'
UNSIGNED_TYPE(ULongLong, UnsignedLongLongTy)

// '__uint128_t'
UNSIGNED_TYPE(UInt128, UnsignedInt128Ty)

//===- Signed Types -------------------------------------------------------===//

// 'char' for targets where it's signed
SHARED_SINGLETON_TYPE(SIGNED_TYPE(Char_S, CharTy))

// 'signed char', explicitly qualified
SIGNED_TYPE(SChar, SignedCharTy)

// 'wchar_t' for targets where it's signed
SHARED_SINGLETON_TYPE(SIGNED_TYPE(WChar_S, WCharTy))

// 'short' or 'signed short'
SIGNED_TYPE(Short, ShortTy)

// 'int' or 'signed int'
SIGNED_TYPE(Int, IntTy)

// 'long' or 'signed long'
SIGNED_TYPE(Long, LongTy)

// 'long long' or 'signed long long'
SIGNED_TYPE(LongLong, LongLongTy)

// '__int128_t'
SIGNED_TYPE(Int128, Int128Ty)

//===- Floating point types -----------------------------------------------===//

// 'half' in OpenCL, '__fp16' in ARM NEON.
FLOATING_TYPE(Half, HalfTy)

// 'float'
FLOATING_TYPE(Float, FloatTy)

// 'double'
FLOATING_TYPE(Double, DoubleTy)

// 'long double'
FLOATING_TYPE(LongDouble, LongDoubleTy)

//===- Language-specific types --------------------------------------------===//

// This is the type of C++0x 'nullptr'.
BUILTIN_TYPE(NullPtr, NullPtrTy)

// The primitive Objective C 'id' type.  The user-visible 'id'
// type is a typedef of an ObjCObjectPointerType to an
// ObjCObjectType with this as its base.  In fact, this only ever
// shows up in an AST as the base type of an ObjCObjectType.
BUILTIN_TYPE(ObjCId, ObjCBuiltinIdTy)

// The primitive Objective C 'Class' type.  The user-visible
// 'Class' type is a typedef of an ObjCObjectPointerType to an
// ObjCObjectType with this as its base.  In fact, this only ever
// shows up in an AST as the base type of an ObjCObjectType.
BUILTIN_TYPE(ObjCClass, ObjCBuiltinClassTy)

// The primitive Objective C 'SEL' type.  The user-visible 'SEL'
// type is a typedef of a PointerType to this.
BUILTIN_TYPE(ObjCSel, ObjCBuiltinSelTy)

// This represents the type of an expression whose type is
// totally unknown, e.g. 'T::foo'.  It is permitted for this to
// appear in situations where the structure of the type is
// theoretically deducible.
BUILTIN_TYPE(Dependent, DependentTy)

// The type of an unresolved overload set.  A placeholder type.
// Expressions with this type have one of the following basic
// forms, with parentheses generally permitted:
//   foo          # possibly qualified, not if an implicit access
//   foo          # possibly qualified, not if an implicit access
//   &foo         # possibly qualified, not if an implicit access
//   x->foo       # only if might be a static member function
//   &x->foo      # only if might be a static member function
//   &Class::foo  # when a pointer-to-member; sub-expr also has this type
// OverloadExpr::find can be used to analyze the expression.
//
// Overload should be the first placeholder type, or else change
// BuiltinType::isNonOverloadPlaceholderType()
PLACEHOLDER_TYPE(Overload, OverloadTy)

// The type of a bound C++ non-static member function.
// A placeholder type.  Expressions with this type have one of the
// following basic forms:
//   foo          # if an implicit access
//   x->foo       # if only contains non-static members
PLACEHOLDER_TYPE(BoundMember, BoundMemberTy)

// The type of an expression which refers to a pseudo-object,
// such as those introduced by Objective C's @property or
// VS.NET's __property declarations.  A placeholder type.  The
// pseudo-object is actually accessed by emitting a call to
// some sort of function or method;  typically there is a pair
// of a setter and a getter, with the setter used if the
// pseudo-object reference is used syntactically as the
// left-hand-side of an assignment operator.
//
// A pseudo-object reference naming an Objective-C @property is
// always a dot access with a base of object-pointer type,
// e.g. 'x.foo'.
//
// In VS.NET, a __property declaration creates an implicit
// member with an associated name, which can then be named
// in any of the normal ways an ordinary member could be.
PLACEHOLDER_TYPE(PseudoObject, PseudoObjectTy)

// __builtin_any_type.  A placeholder type.  Useful for clients
// like debuggers that don't know what type to give something.
// Only a small number of operations are valid on expressions of
// unknown type, most notably explicit casts.
PLACEHOLDER_TYPE(UnknownAny, UnknownAnyTy)

// The type of a cast which, in ARC, would normally require a
// __bridge, but which might be okay depending on the immediate
// context.
PLACEHOLDER_TYPE(ARCUnbridgedCast, ARCUnbridgedCastTy)

#ifdef LAST_BUILTIN_TYPE
LAST_BUILTIN_TYPE(ARCUnbridgedCast)
#undef LAST_BUILTIN_TYPE
#endif

#undef SHARED_SINGLETON_TYPE
#undef PLACEHOLDER_TYPE
#undef FLOATING_TYPE
#undef SIGNED_TYPE
#undef UNSIGNED_TYPE
#undef BUILTIN_TYPE