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// Copyright (C) 2023-2024 Free Software Foundation, Inc.
//
// This file is part of the GNU Proc Macro Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
#ifndef LITERAL_H
#define LITERAL_H
#include <cstdint>
#include <string>
#include <vector>
#include "span.h"
#include "ffistring.h"
namespace ProcMacro {
enum LitKindTag
{
BYTE,
CHAR,
INTEGER,
FLOAT,
STR,
STR_RAW,
BYTE_STR,
BYTE_STR_RAW,
};
union LitKindPayload
{
std::uint8_t str_raw;
std::uint8_t byte_str_raw;
};
struct LitKind
{
LitKindTag tag;
LitKindPayload payload;
private:
public:
static LitKind make_byte ();
static LitKind make_char ();
static LitKind make_integer ();
static LitKind make_float ();
static LitKind make_str ();
static LitKind make_str_raw (std::uint8_t val);
static LitKind make_byte_str ();
static LitKind make_byte_str_raw (std::uint8_t val);
};
struct Literal
{
LitKind kind;
FFIString text;
FFIString suffix;
Span span;
public:
Literal clone () const;
bool has_suffix () const { return suffix.len != 0; };
static Literal make_literal (const std::string &text, bool &has_error);
static Literal make_literal (const LitKind kind, Span span,
const std::string &text,
const std::string &suffix = "");
static Literal make_u8 (std::uint8_t value, bool suffixed = true);
static Literal make_u16 (std::uint16_t value, bool suffixed = true);
static Literal make_u32 (std::uint32_t value, bool suffixed = true);
static Literal make_u64 (std::uint64_t value, bool suffixed = true);
static Literal make_i8 (std::int8_t value, bool suffixed = true);
static Literal make_i16 (std::int16_t value, bool suffixed = true);
static Literal make_i32 (std::int32_t value, bool suffixed = true);
static Literal make_i64 (std::int64_t value, bool suffixed = true);
static Literal make_string (const std::string &str);
static Literal make_byte_string (const std::vector<std::uint8_t> &vec);
static Literal make_f32 (float value, bool suffixed = false);
static Literal make_f64 (double value, bool suffixed = false);
static Literal make_char (std::uint32_t ch);
static Literal make_usize (std::uint64_t value, bool suffixed = true);
static Literal make_isize (std::int64_t value, bool suffixed = true);
static void drop (Literal *lit);
};
extern "C" {
bool
Literal__from_string (FFIString str, Literal *lit);
}
} // namespace ProcMacro
#endif /* ! LITERAL_H */
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