src/as_parser.h


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#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;
};

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

struct label {
    const char* name;
};

struct stmt {
    struct label * label;
    struct instr * instr;
};

struct stmts {
    struct stmt ** stmts;
};

struct prog {
    struct stmts * stmts;
};

// result<prog>
struct result parse_prog(struct allocator * alct, struct token_stream * ts);

// result<stmt>
struct result parse_stmt(struct allocator * alct, struct token_stream * ts);

// result<stmts>
struct result parse_stmts(struct allocator * alct, struct token_stream * ts);

// result<instr>
struct result parse_instr(struct allocator * alct, struct token_stream * ts);

// result<label>
struct result parse_label(struct allocator * alct, struct token_stream * ts);

// result<enum op>
struct result parse_op(struct allocator * alct, struct token_stream * ts);

#endif