FLANG

attr.h
1 //===-- include/flang/Semantics/attr.h --------------------------*- 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 #ifndef FORTRAN_SEMANTICS_ATTR_H_
10 #define FORTRAN_SEMANTICS_ATTR_H_
11
12 #include "flang/Common/enum-set.h"
13 #include "flang/Common/idioms.h"
14 #include <cinttypes>
15 #include <string>
16
17 namespace llvm {
18 class raw_ostream;
19 }
20
21 namespace Fortran::semantics {
22
23 // All available attributes.
24 ENUM_CLASS(Attr, ABSTRACT, ALLOCATABLE, ASYNCHRONOUS, BIND_C, CONTIGUOUS,
25 DEFERRED, ELEMENTAL, EXTENDS, EXTERNAL, IMPURE, INTENT_IN, INTENT_INOUT,
26 INTENT_OUT, INTRINSIC, MODULE, NON_OVERRIDABLE, NON_RECURSIVE, NOPASS,
27 OPTIONAL, PARAMETER, PASS, POINTER, PRIVATE, PROTECTED, PUBLIC, PURE,
28 RECURSIVE, SAVE, TARGET, VALUE, VOLATILE)
29
30 // Set of attributes
31 class Attrs : public common::EnumSet<Attr, Attr_enumSize> {
32 private:
33 using enumSetType = common::EnumSet<Attr, Attr_enumSize>;
34
35 public:
36 using enumSetType::enumSetType;
37 Attrs(const enumSetType &attrs) : enumSetType(attrs) {}
38 Attrs(enumSetType &&attrs) : enumSetType(std::move(attrs)) {}
39 constexpr bool HasAny(const Attrs &x) const { return !(*this & x).none(); }
40 constexpr bool HasAll(const Attrs &x) const { return (~*this & x).none(); }
41 // Internal error if any of these attributes are not in allowed.
42 void CheckValid(const Attrs &allowed) const;
43
44 private:
45 friend llvm::raw_ostream &operator<<(llvm::raw_ostream &, const Attrs &);
46 };
47
48 // Return string representation of attr that matches Fortran source.
49 std::string AttrToString(Attr attr);
50
51 llvm::raw_ostream &operator<<(llvm::raw_ostream &o, Attr attr);
52 llvm::raw_ostream &operator<<(llvm::raw_ostream &o, const Attrs &attrs);
53 } // namespace Fortran::semantics
54 #endif // FORTRAN_SEMANTICS_ATTR_H_