1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
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  23  */
  24 
  25 #ifndef SHARE_VM_CI_CIVALUEARRAYKLASS_HPP
  26 #define SHARE_VM_CI_CIVALUEARRAYKLASS_HPP
  27 
  28 // ciValueArrayKlass
  29 //
  30 // This class represents a Klass* in the HotSpot virtual machine
  31 // whose Klass part is a ValueArrayKlass.
  32 class ciValueArrayKlass : public ciArrayKlass {
  33   CI_PACKAGE_ACCESS
  34   friend class ciEnv;
  35 
  36 private:
  37   ciKlass* _element_klass;
  38   // TODO remove this??
  39   ciKlass* _base_element_klass;
  40 
  41 protected:
  42   ciValueArrayKlass(KlassHandle h_k);
  43 
  44   ValueArrayKlass* get_ValueArrayKlass() {
  45     return (ValueArrayKlass*)get_Klass();
  46   }
  47 
  48   static ciValueArrayKlass* make_impl(ciKlass* element_klass);
  49   static ciSymbol* construct_array_name(ciSymbol* element_name,
  50                                         int       dimension);
  51 
  52   const char* type_string() { return "ciValueArrayKlass"; }
  53 
  54   oop     loader()        { return _base_element_klass->loader(); }
  55   jobject loader_handle() { return _base_element_klass->loader_handle(); }
  56 
  57   oop     protection_domain()        { return _base_element_klass->protection_domain(); }
  58   jobject protection_domain_handle() { return _base_element_klass->protection_domain_handle(); }
  59 
  60 
  61 public:
  62   // The one-level type of the array elements.
  63   ciKlass* element_klass();
  64 
  65   // TODO refactor all of this
  66   int log2_element_size() {
  67     return Klass::layout_helper_log2_element_size(layout_helper());
  68   }
  69 
  70   // The innermost type of the array elements.
  71   ciKlass* base_element_klass() { return _base_element_klass; }
  72 
  73   // What kind of ciObject is this?
  74   bool is_value_array_klass() const { return true; }
  75 
  76   static ciValueArrayKlass* make(ciKlass* element_klass);
  77 
  78   virtual ciKlass* exact_klass();
  79 };
  80 
  81 
  82 #endif // SHARE_VM_CI_CIVALUEARRAYKLASS_HPP