#pragma once
#include "parser.h"
#include "heap.h"

/*typedef struct Object {
  struct Value * extends;
  size_t member_cnt;
  SimpleEntry members [];
} Object;

typedef struct Array {
  i32 length;
  Value * members [];
} Array;*/

typedef struct EnvironmentEntry {
  struct EnvironmentEntry * next;
  Str name;
  Value * value;
} EnvironmentEntry;

typedef struct Environment {
  struct Environment * prev;
  EnvironmentEntry * start;
} Environment;

typedef struct ASTInterpreterState {
  Heap * heap;
  Environment global_env;
  Environment * current_env;
} ASTInterpreterState;

void env_push ( ASTInterpreterState * state );
void env_pop ( ASTInterpreterState * state );
Value * env_get ( ASTInterpreterState * state, Str name );
void env_put ( ASTInterpreterState * state, Str name, Value * value );
void env_def ( ASTInterpreterState * state, Str name, Value * value );
void state_init ( ASTInterpreterState * state, Heap * heap );
void state_destroy ( ASTInterpreterState * state );

Value * function_call ( ASTInterpreterState * state, Value * callee, bool is_function, Ast ** arguments, size_t argc, Str * name );
void print_value ( Value * value );
void fml_print ( Str format, Value ** args, size_t argc );
Value * evaluate ( ASTInterpreterState * state, Ast * ast );