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105 lines
2.4 KiB
C++
105 lines
2.4 KiB
C++
// Copyright (C) 2023-2024 Free Software Foundation, Inc.
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//
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// This file is part of the GNU Proc Macro Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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#ifndef PROC_MACRO_H
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#define PROC_MACRO_H
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#include <cstdint>
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#include "literal.h"
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#include "tokenstream.h"
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#include "tokentree.h"
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#include "group.h"
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#include "punct.h"
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#include "ident.h"
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#include "registration.h"
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namespace ProcMacro {
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extern "C" {
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using CustomDeriveMacro = TokenStream (*) (TokenStream);
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using AttributeMacro = TokenStream (*) (TokenStream, TokenStream);
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using BangMacro = TokenStream (*) (TokenStream);
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struct CustomDerive
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{
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// TODO: UTF-8 function name
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const char *trait_name;
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// TODO: UTF-8 attributes
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const char **attributes;
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std::uint64_t attr_size;
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CustomDeriveMacro macro;
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};
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struct Attribute
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{
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// TODO: UTF-8 function name
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const char *name;
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AttributeMacro macro;
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};
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struct Bang
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{
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const char *name;
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BangMacro macro;
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};
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}
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enum ProcmacroTag
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{
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CUSTOM_DERIVE = 0,
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ATTR,
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BANG,
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};
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union ProcmacroPayload
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{
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CustomDerive custom_derive;
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Attribute attribute;
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Bang bang;
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};
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struct Procmacro
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{
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ProcmacroTag tag;
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ProcmacroPayload payload;
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public:
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Procmacro make_derive (const char *trait_name, const char **attribute,
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std::uint64_t size, CustomDeriveMacro macro);
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Procmacro make_attribute (const char *name, AttributeMacro macro);
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Procmacro make_bang (const char *name, BangMacro macro);
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};
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struct ProcmacroArray
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{
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std::uint64_t length;
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Procmacro *macros;
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};
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extern "C" bool
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bridge_is_available ();
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} // namespace ProcMacro
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#endif /* ! PROC_MACRO_H */
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