#ifndef FVM_AS_PARSER_H_
#define FVM_AS_PARSER_H_

#include "as_tokenizer.h"
#include "utils.h"

#include "as_op.h"

struct arg {
    int64_t ival;
    double fval;
};
typedef struct arg * arg_t;

struct instr {
    enum op op;
    arg_t arg;
    const char* tag_name;
};
typedef struct instr * instr_t;

struct label {
    const char* name;
};
typedef struct label * label_t;

struct stmt {
    label_t label;
    instr_t instr;
};
typedef struct stmt * stmt_t;

struct stmts {
    stmt_t * stmts;
};
typedef struct stmts * stmts_t;

struct prog {
    stmts_t stmts;
};
typedef struct prog * prog_t;

prog_t parse_prog(allocator_t alct, token_stream_t ts);
stmt_t parse_stmt(allocator_t alct, token_stream_t ts);
stmts_t parse_stmts(allocator_t alct, token_stream_t ts);
instr_t parse_instr(allocator_t alct, token_stream_t ts);
label_t parse_label(allocator_t alct, token_stream_t ts);
enum op parse_op(allocator_t alct, token_stream_t ts);

#endif