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#ifndef HAREC_LEX_H
#define HAREC_LEX_H
#include <stdint.h>
#include <stdio.h>
#include "types.h"
#include "utf8.h"
#define C_EOF UTF8_INVALID
// Keep sorted
enum lexical_token {
T_ATTR_FINI,
T_ATTR_INIT,
T_ATTR_PACKED,
T_ATTR_SYMBOL,
T_ATTR_TEST,
T_ATTR_THREADLOCAL,
T_ATTR_UNDEFINED,
T_UNDERSCORE,
T_ABORT,
T_ALIGN,
T_ALLOC,
T_APPEND,
T_AS,
T_ASSERT,
T_BOOL,
T_BREAK,
T_CASE,
T_CONST,
T_CONTINUE,
T_DEF,
T_DEFER,
T_DELETE,
T_DONE,
T_ELSE,
T_ENUM,
T_EXPORT,
T_F32,
T_F64,
T_FALSE,
T_FN,
T_FOR,
T_FREE,
T_I16,
T_I32,
T_I64,
T_I8,
T_IF,
T_INSERT,
T_INT,
T_IS,
T_LEN,
T_LET,
T_MATCH,
T_NEVER,
T_NOMEM,
T_NULL,
T_NULLABLE,
T_OFFSET,
T_OPAQUE,
T_RETURN,
T_RUNE,
T_SIZE,
T_STATIC,
T_STR,
T_STRUCT,
T_SWITCH,
T_TRUE,
T_TYPE,
T_U16,
T_U32,
T_U64,
T_U8,
T_UINT,
T_UINTPTR,
T_UNION,
T_USE,
T_VAARG,
T_VAEND,
T_VALIST,
T_VASTART,
T_VOID,
T_YIELD,
T_LAST_KEYWORD = T_YIELD,
// Operators
T_ARROW,
T_BANDEQ,
T_BAND,
T_BNOT,
T_BOR,
T_COLON,
T_COMMA,
T_DIV,
T_DIVEQ,
T_DOT,
T_DOUBLE_COLON,
T_DOUBLE_DOT,
T_ELLIPSIS,
T_EQUAL,
T_GREATER,
T_GREATEREQ,
T_LAND,
T_LANDEQ,
T_LBRACE,
T_LBRACKET,
T_LEQUAL,
T_LESS,
T_LESSEQ,
T_LNOT,
T_LOR,
T_LOREQ,
T_LPAREN,
T_LSHIFT,
T_LSHIFTEQ,
T_LXOR,
T_LXOREQ,
T_MINUS,
T_MINUSEQ,
T_MODEQ,
T_MODULO,
T_NEQUAL,
T_BOREQ,
T_PLUS,
T_PLUSEQ,
T_QUESTION,
T_RBRACE,
T_RBRACKET,
T_RPAREN,
T_RSHIFT,
T_RSHIFTEQ,
T_SEMICOLON,
T_TIMES,
T_TIMESEQ,
T_BXOR,
T_BXOREQ,
T_LAST_OPERATOR = T_BXOREQ,
// Tokens with additional information
T_NAME,
T_LITERAL,
// Magic tokens
T_EOF,
T_NONE,
};
struct location {
int file;
int lineno, colno;
};
struct token {
struct location loc;
enum lexical_token token;
enum type_storage storage;
union {
const char *name;
uint32_t rune;
int64_t ival;
uint64_t uval;
double fval;
struct {
size_t len;
const char *value;
} string;
};
};
struct lexer {
FILE *in;
char *buf;
size_t bufsz, buflen;
uint32_t c[2];
struct token un;
struct location loc;
bool require_int;
bool in_annotation;
struct intern_table *itbl;
};
void lex_init(struct lexer *lexer, FILE *f, int fileid, struct intern_table *itbl);
void lex_finish(struct lexer *lexer);
enum lexical_token lex(struct lexer *lexer, struct token *out);
void unlex(struct lexer *lexer, const struct token *in);
const char *token_str(const struct token *tok);
const char *lexical_token_str(enum lexical_token tok);
#endif
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