C++ (Cpp) layout_helper_element_type Examples

Example #1

File: klass.cpp Project: sxhao/codenameone-avian

jint Klass::array_layout_helper(BasicType etype) {
  assert(etype >= T_BOOLEAN && etype <= T_OBJECT, "valid etype");
  // Note that T_ARRAY is not allowed here.
  int  hsize = arrayOopDesc::base_offset_in_bytes(etype);
  int  esize = type2aelembytes(etype);
  bool isobj = (etype == T_OBJECT);
  int  tag   =  isobj ? _lh_array_tag_obj_value : _lh_array_tag_type_value;
  int lh = array_layout_helper(tag, hsize, etype, exact_log2(esize));

  assert(lh < (int)_lh_neutral_value, "must look like an array layout");
  assert(layout_helper_is_javaArray(lh), "correct kind");
  assert(layout_helper_is_objArray(lh) == isobj, "correct kind");
  assert(layout_helper_is_typeArray(lh) == !isobj, "correct kind");
  assert(layout_helper_header_size(lh) == hsize, "correct decode");
  assert(layout_helper_element_type(lh) == etype, "correct decode");
  assert(1 << layout_helper_log2_element_size(lh) == esize, "correct decode");

  return lh;
}

Example #2

File: arrayKlass.hpp Project: ismo1652/jvmnotebook

 // type of elements (T_OBJECT for both oop arrays and array-arrays)
 BasicType element_type() const        { return layout_helper_element_type(layout_helper()); }