#ifndef PARSE_H
#define PARSE_H

#include "collection.h"
#include "preproc.h"
#include "resolve.h"
#include "sema.h"

typedef struct {
    char ch;
    bool is_term;
    unsigned short val;
} KwNodeOpt;

typedef struct {
    ARRAY_FIELD(KwNodeOpt, opts);
    size_t idx;
} KwNode;

typedef struct {
    TokStream* tokstream;
    Arena arena;
    ARRAY_FIELD(KwNode, nodes);
} KwMatcher;

void kwmatcher_init(KwMatcher* m, TokStream* tokstream);
void kwmatcher_deinit(KwMatcher* m);
Tok kwmatcher_next(KwMatcher* m);

typedef enum : unsigned int {
    ParserFlags_ParsingTypedef = 1 << 0,
} ParserFlags;

typedef struct Parser {
    KwMatcher kwmatcher;
    Sema* sema;
    Arena* arena;
    Arena sym_arena;

    OldSyms* old_syms;

    Tok curr;

    ParserFlags flags;
} Parser;

void parser_init(Parser* p, TokStream* tokstream, Sema* sema, Arena* arena);
void parser_deinit(Parser* p);
AstStmt* parser_parse_stmt(Parser* p);
bool parser_done(Parser* p);

#endif