#define MIST_CFUNC_DEF(name, length, func1, props) { name, props, JS_DEF_CFUNC, 0, .u = { .func = { length, JS_CFUNC_generic, { .generic = func1 } } } }

#define MIST_FUNC_DEF(TYPE, FN, LEN) MIST_CFUNC_DEF(#FN, LEN, js_##TYPE##_##FN, JS_PROP_C_W_E)
#define PROTO_FUNC_DEF(TYPE, FN, LEN) MIST_CFUNC_DEF(#FN, LEN, js_##TYPE##_##FN, 0)

#define JS_SETSIG JSContext *js, JSValue self, JSValue val
#define JSC_CCALL(NAME, ...) static JSValue js_##NAME (JSContext *js, JSValue self, int argc, JSValue *argv) { \
  JSValue ret = JS_NULL; \
  __VA_ARGS__  ;\
  return ret; \
}

#define JSC_CCALL_EXTERN(NAME, ...) JSValue js_##NAME (JSContext *js, JSValue self, int argc, JSValue *argv) { \
  JSValue ret = JS_NULL; \
  __VA_ARGS__  ;\
  return ret; \
}

#define JSC_SCALL(NAME, ...) JSC_CCALL(NAME, \
  const char *str = JS_ToCString(js,argv[0]); \
  __VA_ARGS__  ;\
  JS_FreeCString(js,str); \
)

#define JSC_SSCALL(NAME, ...) JSC_CCALL(NAME, \
  const char *str = NULL; \
  const char *str2 = NULL; \
  if (!JS_IsNull(argv[0])) str = JS_ToCString(js,argv[0]); \
  if (!JS_IsNull(argv[1])) str2 = JS_ToCString(js,argv[1]); \
  __VA_ARGS__ ; \
  JS_FreeCString(js,str2); \
  JS_FreeCString(js,str); \
) \

#define MIST_CGETSET_BASE(name, fgetter, fsetter, props) { name, props, JS_DEF_CGETSET, 0, .u = { .getset = { .get = { .getter = fgetter }, .set = { .setter = fsetter } } } }
#define MIST_CGETSET_DEF(name, fgetter, fsetter) MIST_CGETSET_BASE(name, fgetter, fsetter, JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE)
#define MIST_CGETET_HID(name, fgetter, fsetter) MIST_CGETSET_BASE(name, fgetter, fsetter, JS_PROP_CONFIGURABLE)
#define MIST_GET(name, fgetter) { #fgetter , JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE, JS_DEF_CGETSET, 0, .u = { .getset = { .get = { .getter = js_##name##_get_##fgetter } } } }

#define CGETSET_ADD_NAME(ID, ENTRY, NAME) MIST_CGETSET_DEF(#NAME, js_##ID##_get_##ENTRY, js_##ID##_set_##ENTRY)
#define CGETSET_ADD(ID, ENTRY) MIST_CGETSET_DEF(#ENTRY, js_##ID##_get_##ENTRY, js_##ID##_set_##ENTRY)
#define CGETSET_ADD_HID(ID, ENTRY) MIST_CGETSET_BASE(#ENTRY, js_##ID##_get_##ENTRY, js_##ID##_set_##ENTRY, JS_PROP_CONFIGURABLE)

#define JSC_DCALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(); return JS_NULL; }

#define JSC_1CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0])); return JS_NULL; }
#define JSC_2CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1])); return JS_NULL; }
#define JSC_3CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2])); return JS_NULL; }
#define JSC_4CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3])); return JS_NULL; }
#define JSC_5CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3]), js2number(js,argv[4])); return JS_NULL; }
#define JSC_6CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3]), js2number(js,argv[4]), js2number(js,argv[5])); return JS_NULL; }
#define JSC_7CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3]), js2number(js,argv[4]), js2number(js,argv[5]), js2number(js,argv[6])); return JS_NULL; }

#define GETSETPAIR(ID, ENTRY, TYPE, FN) \
JSValue js_##ID##_set_##ENTRY (JS_SETSIG) { \
  js2##ID (js, self)->ENTRY = js2##TYPE (js,val); \
  {FN;} \
  return JS_NULL; \
} \
\
JSValue js_##ID##_get_##ENTRY (JSContext *js, JSValue self) { \
  return TYPE##2js(js,js2##ID (js, self)->ENTRY); \
} \

#define JSC_GETSET(ID, ENTRY, TYPE) GETSETPAIR( ID , ENTRY , TYPE , ; )
#define JSC_GETSET_APPLY(ID, ENTRY, TYPE) GETSETPAIR(ID, ENTRY, TYPE, ID##_apply(js2##ID (js, self));)
#define JSC_GETSET_CALLBACK(ID, ENTRY) \
JSValue js_##ID##_set_##ENTRY (JS_SETSIG) { \
  JSValue fn = js2##ID (js, self)->ENTRY; \
  if (!JS_IsNull(fn)) JS_FreeValue(js, fn); \
  js2##ID (js, self)->ENTRY = JS_DupValue(js, val); \
  return JS_NULL; \
}\
JSValue js_##ID##_get_##ENTRY (JSContext *js, JSValue self) { return JS_DupValue(js, js2##ID (js, self)->ENTRY); } \

#define JSC_GET(ID, ENTRY, TYPE) \
JSValue js_##ID##_get_##ENTRY (JSContext *js, JSValue self) { \
  return TYPE##2js(js,js2##ID (js, self)->ENTRY); } \

#define QJSCLASS(TYPE, ...)\
JSClassID js_##TYPE##_id;\
static void js_##TYPE##_finalizer(JSRuntime *rt, JSValue val){\
TYPE *n = JS_GetOpaque(val, js_##TYPE##_id);\
TYPE##_free(rt,n);}\
static JSClassDef js_##TYPE##_class = {\
  .class_name = #TYPE,\
  .finalizer = js_##TYPE##_finalizer,\
};\
TYPE *js2##TYPE (JSContext *js, JSValue val) { \
  if (JS_GetClassID(val) != js_##TYPE##_id) return NULL; \
  return JS_GetOpaque(val,js_##TYPE##_id); \
}\
JSValue TYPE##2js(JSContext *js, TYPE *n) { \
  JSValue j = JS_NewObjectClass(js,js_##TYPE##_id);\
  JS_SetOpaque(j,n);\
  __VA_ARGS__ \
  return j; }\
\

#define QJSCLASSMARK(TYPE, ...)\
static void js_##TYPE##_finalizer(JSRuntime *rt, JSValue val){\
TYPE *n = JS_GetOpaque(val, js_##TYPE##_id);\
TYPE##_free(rt,n);}\
static JSClassDef js_##TYPE##_class = {\
  .class_name = #TYPE,\
  .finalizer = js_##TYPE##_finalizer,\
  .gc_mark = js_##TYPE##_mark,\
};\
TYPE *js2##TYPE (JSContext *js, JSValue val) { \
  if (JS_GetClassID(val) != js_##TYPE##_id) return NULL; \
  return JS_GetOpaque(val,js_##TYPE##_id); \
}\
JSValue TYPE##2js(JSContext *js, TYPE *n) { \
  JSValue j = JS_NewObjectClass(js,js_##TYPE##_id);\
  JS_SetOpaque(j,n);\
  __VA_ARGS__ \
  return j; }\
\

#define QJSCLASSMARK_EXTERN(TYPE, ...)\
static void js_##TYPE##_finalizer(JSRuntime *rt, JSValue val){\
TYPE *n = JS_GetOpaque(val, js_##TYPE##_id);\
TYPE##_free(rt,n);}\
static JSClassDef js_##TYPE##_class = {\
  .class_name = #TYPE,\
  .finalizer = js_##TYPE##_finalizer,\
  .gc_mark = js_##TYPE##_mark,\
};\
extern JSClassID js_##TYPE##_id;\
TYPE *js2##TYPE (JSContext *js, JSValue val) { \
  if (JS_GetClassID(val) != js_##TYPE##_id) return NULL; \
  return JS_GetOpaque(val,js_##TYPE##_id); \
}\
JSValue TYPE##2js(JSContext *js, TYPE *n) { \
  JSValue j = JS_NewObjectClass(js,js_##TYPE##_id);\
  JS_SetOpaque(j,n);\
  __VA_ARGS__ \
  return j; }\
\

#define QJSGLOBALCLASS(NAME) \
JSValue NAME = JS_NewObject(js); \
JS_SetPropertyFunctionList(js, NAME, js_##NAME##_funcs, countof(js_##NAME##_funcs)); \
JS_SetPropertyStr(js, globalThis, #NAME, NAME); \

/* Defines a class and uses its function list as its prototype */
#define QJSCLASSPREP_FUNCS(TYPE) \
QJSCLASSPREP_NO_FUNCS(TYPE) \
JS_SetPropertyFunctionList(js, TYPE##_proto, js_##TYPE##_funcs, countof(js_##TYPE##_funcs)); \

#define QJSCLASSPREP_NO_FUNCS(TYPE) \
JS_NewClassID(&js_##TYPE##_id);\
JS_NewClass(JS_GetRuntime(js), js_##TYPE##_id, &js_##TYPE##_class);\
JSValue TYPE##_proto = JS_NewObject(js); \
JS_SetClassProto(js, js_##TYPE##_id, TYPE##_proto); \


#define countof(x) (sizeof(x)/sizeof((x)[0]))


// Common macros for property access
#define JS_GETPROP(JS, TARGET, VALUE, PROP, TYPE) {\
JSValue __##PROP##__v = JS_GetPropertyStr(JS,VALUE,#PROP); \
TARGET = js2##TYPE(JS, __##PROP##__v); \
JS_FreeValue(JS,__##PROP##__v); }\

#define JS_GETATOM(JS, TARGET, VALUE, ATOM, TYPE) {\
JSValue __##PROP##__v = JS_GetPropertyStr(JS,VALUE,#ATOM); \
TARGET = js2##TYPE(JS, __##PROP##__v); \
JS_FreeValue(JS,__##PROP##__v); }\

// X-macro enum definition system for string<->enum conversion
#define ENUM_MAPPING_TABLE(ENUM) \
  static const struct { int value; const char *name; } ENUM##_mapping[]

#define JS2ENUM(NAME)                                         \
int js2##NAME(JSContext *js, JSValue v) {                    \
  if (JS_IsNull(v)) return 0;                                \
  const char *str = JS_ToCString(js, v);                     \
  if (!str) return 0;                                        \
  for(int i = 0; i < sizeof(NAME##_mapping)/sizeof(NAME##_mapping[0]); i++) \
    if(!strcmp(NAME##_mapping[i].name, str)) {               \
      JS_FreeCString(js, str);                               \
      return NAME##_mapping[i].value;                        \
    }                                                        \
  JS_FreeCString(js, str);                                   \
  return 0;                                                  \
}                                                            \
JSValue NAME##2js(JSContext *js, int enumval) {              \
  for(int i = 0; i < sizeof(NAME##_mapping)/sizeof(NAME##_mapping[0]); i++) \
    if(NAME##_mapping[i].value == enumval)                   \
      return JS_NewString(js, NAME##_mapping[i].name);       \
  return JS_NULL;                                            \
}

#define CELL_USE_INIT(c) \
JSValue CELL_USE_NAME(JSContext *js) { do { c ; } while(0);  }

#define CELL_USE_FUNCS(FUNCS) \
JSValue CELL_USE_NAME(JSContext *js) { \
  JSValue mod = JS_NewObject(js); \
  JS_SetPropertyFunctionList(js, mod, FUNCS, countof(FUNCS)); \
  return mod; }