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#pragma once
#include "ivec.h"
#include "node_vec.h"
#include "str.h"
#include <stdbool.h>
#include <stddef.h>
// Lexer
typedef enum {
LEX_PINC,
LEX_PDEC,
LEX_VINC,
LEX_VDEC,
LEX_OUT,
LEX_IN,
LEX_LB,
LEX_RB,
LEX_EOF
} lex_tok_e;
typedef struct {
str *src;
size_t pos;
ivec tokens;
} lexer_t;
lexer_t lex_init(str *src);
void lex_run(lexer_t *lx);
void lex_free(lexer_t *lx);
// Parser/AST
typedef struct ast_node ast_node_t;
typedef enum {
AST_INC,
AST_DEC,
AST_PTR_INC,
AST_PTR_DEC,
AST_OUT,
AST_IN,
AST_LOOP
} ast_type_e;
struct ast_node {
ast_type_e type;
int val;
node_vec children; // vec<ast_node_t*>
ast_node_t *next;
};
typedef struct {
lexer_t *lx;
size_t pos;
} parser_t;
parser_t parser_init(lexer_t *lx);
ast_node_t *parse_program(parser_t *p);
void ast_free(ast_node_t *node);
// codegen
str gen_code(ast_node_t *ast);
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