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/*
* Declarations for the tokenizer in the bootstrap compiler.
*
* Copyright © 2025 Samuel Lidén Borell <samuel@kodafritt.se>
*
* SPDX-License-Identifier: EUPL-1.2+
*/
#ifndef SLUL_TOKEN_H
#define SLUL_TOKEN_H
#include <stddef.h>
enum Token {
T_EOL, /**< End of line */
/* Expressions */
T_UpperIdent,
T_LowerIdent,
T_Integer,
T_String,
T_SYM_Dot,
T_SYM_LArrow,
T_SYM_RArrow,
T_SYM_SingleEqual,
T_SYM_DoubleEqual,
T_SYM_NotEqual,
T_SYM_Less,
T_SYM_Greater,
T_SYM_LessEqual,
T_SYM_GreaterEqual,
T_SYM_Plus,
T_SYM_Minus,
T_SYM_Asterisk,
T_SYM_Slash,
T_SYM_LParen,
T_SYM_RParen,
T_SYM_LBracket,
T_SYM_RBracket,
/* Common stuff */
T_KW_end,
/* Toplevels */
T_KW_class,
T_KW_enum,
T_KW_func,
T_KW_record,
T_KW_templates,
T_KW_trait,
/* Builtin types */
T_KW_bool,
T_KW_byte,
T_KW_int,
T_KW_long,
/* Qualifiers */
T_KW_var,
T_KW_aliased,
T_KW_volatile,
T_KW_wrapping,
T_KW_signed,
T_KW_unsigned,
/* Generics */
T_KW_of,
T_KW_to,
T_KW_from,
/* Function sections */
T_KW_calledfrom,
T_KW_code,
T_KW_export,
T_KW_io,
T_KW_local,
T_KW_modifies,
T_KW_reads,
T_KW_returns,
T_KW_section,
T_KW_sets,
/* Statements */
T_KW_assert,
T_KW_break,
T_KW_case,
T_KW_continue,
T_KW_default,
T_KW_elif,
T_KW_else,
T_KW_for,
T_KW_if,
T_KW_in,
T_KW_loopend,
T_KW_loopempty,
T_KW_return,
T_KW_switch,
T_KW_while,
/* Operators */
T_KW_and,
T_KW_mod,
T_KW_not,
T_KW_or,
/* Special values */
T_KW_false,
T_KW_true,
T_KW_none
};
#define FIRST_QUALIFIER T_KW_var
#define LAST_QUALIFIER T_KW_unsigned
#define NUM_QUALIFIERS (LAST_QUALIFIER+1 - FIRST_QUALIFIER)
#define TOKEN_CASES_QUALIFIERS \
case T_KW_var: \
case T_KW_aliased: \
case T_KW_volatile: \
case T_KW_wrapping: \
case T_KW_signed: \
case T_KW_unsigned:
#define TOKEN_CASES_VALUE_START \
case T_LowerIdent: \
case T_Integer: \
case T_String: \
case T_SYM_LParen: \
case T_SYM_RParen: \
case T_SYM_LBracket: \
case T_KW_not: \
case T_KW_false: \
case T_KW_true: \
case T_KW_none:
/* Type qualifiers */
#define Q_VAR 0x01
#define Q_ALIASED 0x02
#define Q_VOLATILE 0x04
#define Q_SIGNED 0x08
#define Q_UNSIGNED 0x10
#define Q_WRAPPING 0x20
struct LexemeInfo {
size_t len;
const char *string;
/* Negative numbers are created with the unary minus operator */
uint64_t num;
};
void tokenizer_init(FILE *f);
bool tokenizer_next_line(void);
bool tokenizer_line_is_indented(void);
enum Token tokenize(struct LexemeInfo *li_out);
void unread_token(void);
void expect(struct LexemeInfo *li_out, enum Token expected,
const char *errmsg);
void expect_next_line(void);
#endif
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