JSString *
js_ObjectToString(JSContext *cx, JSObject *obj)
{
jsval v, *mark, *argv;
JSString *str;
if (!obj)
return ATOM_TO_STRING(cx->runtime->atomState.nullAtom);
v = JSVAL_VOID;
if (!obj->map->clasp->convert(cx, obj, JSTYPE_STRING, &v))
return NULL;
if (JSVAL_IS_STRING(v))
return JSVAL_TO_STRING(v);
/* Try the toString method if it's defined. */
js_TryMethod(cx, obj, cx->runtime->atomState.toStringAtom, 0, NULL, &v);
if (JSVAL_IS_STRING(v))
return JSVAL_TO_STRING(v);
#if JS_BUG_EAGER_TOSTRING
js_TryValueOf(cx, obj, JSTYPE_STRING, &v);
if (JSVAL_IS_STRING(v))
return JSVAL_TO_STRING(v);
#endif
mark = PR_ARENA_MARK(&cx->stackPool);
PR_ARENA_ALLOCATE(argv, &cx->stackPool, OBJ_TOSTRING_NARGS * sizeof(jsval));
if (!argv || !js_obj_toString(cx, obj, OBJ_TOSTRING_NARGS, argv, &v))
str = NULL;
else
str = JSVAL_TO_STRING(v);
PR_ARENA_RELEASE(&cx->stackPool, mark);
return str;
}
static JSBool
array_convert(JSContext *cx, JSObject *obj, JSType type, jsval *vp)
{
jsuint length;
if (cx->version == JSVERSION_1_2) {
if (!js_GetLengthProperty(cx, obj, &length))
return JS_FALSE;
switch (type) {
case JSTYPE_NUMBER:
return IndexToValue(cx, length, vp);
case JSTYPE_BOOLEAN:
*vp = BOOLEAN_TO_JSVAL(length > 0);
return JS_TRUE;
default:
return JS_TRUE;
}
}
return js_TryValueOf(cx, obj, type, vp);
}