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/*
 * Copyright (c) 2025 Quinn Stephens and the OSMORA team.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _LEXER_TOKEN_H
#define _LEXER_TOKEN_H 1

#include <stddef.h>
#include "hash.h"

enum token_kind {
    TOK_UNKNOWN,
    TOK_EOF,

    TOK_IDENTIFIER,

    TOK_COMMA,
    TOK_DOT,
    TOK_COLON,
    TOK_SEMICOLON,
    TOK_LPAREN,
    TOK_RPAREN,
    TOK_LCURLY,
    TOK_RCURLY,
    TOK_LSQUARE,
    TOK_RSQUARE,
    TOK_ASTERISK,

    /*
     * Do not modify this ordering without updating parser/types.c
     */
    TOK_VOID,
    TOK_INT
};

#define TF_NONE 0
#define TF_BUILTIN_TYPE (1 << 0)

struct token {
    enum token_kind kind;
    uint8_t flags;

    const char *pos;
    int line;
    int col;
    size_t len;

    hash_t hash;
};

#endif /* !_LEXER_TOKEN_H */