/*
  * Get rid of Scratch, move that concept onto the main context, create scratch memory from user allocator
  * Simplify allocators, only should be derived from the user allocator
  * Cleanup big int allocator
  * Replace iterator interface

  * Reset compiler

  */

struct Lex_Stream{
  String stream;
  S64    iter;

  U8            *line_begin;
  Intern_String  file;
  S32            line;
  S32            inside_brace_paren;
  Array<Token *> indent_stack;
};

struct Parse_Ctx{
  Arena *perm; // Stores: AST, tokens, interns
  Arena  stage_arena;
  Arena  scratch;

  // Lexer stuff
  Lex_Stream   stream;
  Array<Token> tokens;
  Intern_Table interns;
  S64 token_iter;
  U32 token_debug_ids;

  // Types
  List<Ast_Type *> all_types;
  S32 type_ids;
  int lambda_ids;
  U64 unique_ids; // @Debug
  Map type_map;

  Ast_Module *language_base_module;

  List<Ast_File    *> files;
  List<Ast_Module  *> modules;
  List<Ast_Decl    *> ordered_decls;
  S32 base_language_ordered_decl_len;

  Ast_Scope         *currently_parsed_scope;
  Ast_File          *currently_parsed_file;
  U32 scope_ids;
  U32 scope_visit_id;

  List<String> module_folders;
  String module_folder;
  String exe_folder;
  String working_folder;
  List<Token *> files_to_link;

  S64 indent;
  String_Builder gen;
  String_Builder helper_builder;

  F64 generating_time_begin;
  F64 generating_time_end;
  F64 resolving_time_begin;
  F64 resolving_time_end;
  F64 total_time;
  F64 init_ctx_time_begin;
  F64 init_ctx_time_end;
  F64 parsing_time_begin;
  F64 parsing_time_end;

  Intern_String intern(String string){
    assert(string.len > 0);
    return intern_string(&interns, string);
  }
};

CORE_Static void init_type();
CORE_Static String compile_to_c_code();
CORE_Static Ast_Module *ast_module(Token *pos, Intern_String filename);
CORE_Static void insert_builtin_types_into_scope(Ast_Scope *p);
CORE_Static void insert_into_scope(Ast_Scope *scope, Ast_Decl *decl);
CORE_Static Ast_Type *type_incomplete(Ast *ast);
CORE_Static Ast_Expr *parse_expr(S64 minbp = 0);