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//===--- LangStandard.h -----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_BASIC_LANGSTANDARD_H
#define LLVM_CLANG_BASIC_LANGSTANDARD_H
#include "clang/Basic/LLVM.h"
#include "llvm/ADT/StringRef.h"
namespace clang {
/// The language for the input, used to select and validate the language
/// standard and possible actions.
enum class Language : uint8_t {
Unknown,
/// Assembly: we accept this only so that we can preprocess it.
Asm,
/// LLVM IR: we accept this so that we can run the optimizer on it,
/// and compile it to assembly or object code.
LLVM_IR,
///@{ Languages that the frontend can parse and compile.
C,
CXX,
ObjC,
ObjCXX,
OpenCL,
CUDA,
RenderScript,
HIP,
///@}
};
enum LangFeatures {
LineComment = (1 << 0),
C99 = (1 << 1),
C11 = (1 << 2),
C17 = (1 << 3),
C2x = (1 << 4),
CPlusPlus = (1 << 5),
CPlusPlus11 = (1 << 6),
CPlusPlus14 = (1 << 7),
CPlusPlus17 = (1 << 8),
CPlusPlus2a = (1 << 9),
Digraphs = (1 << 10),
GNUMode = (1 << 11),
HexFloat = (1 << 12),
ImplicitInt = (1 << 13),
OpenCL = (1 << 14)
};
/// LangStandard - Information about the properties of a particular language
/// standard.
struct LangStandard {
enum Kind {
#define LANGSTANDARD(id, name, lang, desc, features) \
lang_##id,
#include "clang/Basic/LangStandards.def"
lang_unspecified
};
const char *ShortName;
const char *Description;
unsigned Flags;
clang::Language Language;
public:
/// getName - Get the name of this standard.
const char *getName() const { return ShortName; }
/// getDescription - Get the description of this standard.
const char *getDescription() const { return Description; }
/// Get the language that this standard describes.
clang::Language getLanguage() const { return Language; }
/// Language supports '//' comments.
bool hasLineComments() const { return Flags & LineComment; }
/// isC99 - Language is a superset of C99.
bool isC99() const { return Flags & C99; }
/// isC11 - Language is a superset of C11.
bool isC11() const { return Flags & C11; }
/// isC17 - Language is a superset of C17.
bool isC17() const { return Flags & C17; }
/// isC2x - Language is a superset of C2x.
bool isC2x() const { return Flags & C2x; }
/// isCPlusPlus - Language is a C++ variant.
bool isCPlusPlus() const { return Flags & CPlusPlus; }
/// isCPlusPlus11 - Language is a C++11 variant (or later).
bool isCPlusPlus11() const { return Flags & CPlusPlus11; }
/// isCPlusPlus14 - Language is a C++14 variant (or later).
bool isCPlusPlus14() const { return Flags & CPlusPlus14; }
/// isCPlusPlus17 - Language is a C++17 variant (or later).
bool isCPlusPlus17() const { return Flags & CPlusPlus17; }
/// isCPlusPlus2a - Language is a post-C++17 variant (or later).
bool isCPlusPlus2a() const { return Flags & CPlusPlus2a; }
/// hasDigraphs - Language supports digraphs.
bool hasDigraphs() const { return Flags & Digraphs; }
/// isGNUMode - Language includes GNU extensions.
bool isGNUMode() const { return Flags & GNUMode; }
/// hasHexFloats - Language supports hexadecimal float constants.
bool hasHexFloats() const { return Flags & HexFloat; }
/// hasImplicitInt - Language allows variables to be typed as int implicitly.
bool hasImplicitInt() const { return Flags & ImplicitInt; }
/// isOpenCL - Language is a OpenCL variant.
bool isOpenCL() const { return Flags & OpenCL; }
static Kind getLangKind(StringRef Name);
static const LangStandard &getLangStandardForKind(Kind K);
static const LangStandard *getLangStandardForName(StringRef Name);
};
} // end namespace clang
#endif
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