1 /*
   2  * Copyright (c) 1999, 2019, 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
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  24 
  25 #ifndef SHARE_CI_CIARRAYKLASS_HPP
  26 #define SHARE_CI_CIARRAYKLASS_HPP
  27 
  28 #include "ci/ciKlass.hpp"
  29 
  30 // ciArrayKlass
  31 //
  32 // This class, and its subclasses represent Klass*s in the
  33 // HotSpot virtual machine whose Klass part is an ArrayKlass.
  34 class ciArrayKlass : public ciKlass {
  35   CI_PACKAGE_ACCESS
  36 private:
  37   jint _dimension;
  38 
  39 protected:
  40   ciArrayKlass(Klass* k);
  41   ciArrayKlass(ciSymbol* name, int dimension, BasicType bt);
  42 
  43   ArrayKlass* get_ArrayKlass() {
  44     return (ArrayKlass*)get_Klass();
  45   }
  46 
  47   const char* type_string() { return "ciArrayKlass"; }
  48 
  49 public:
  50   jint dimension() { return _dimension; }
  51   ciType* element_type();       // JLS calls this the "component type"
  52   ciType* base_element_type();  // JLS calls this the "element type"
  53   bool is_leaf_type();          // No subtypes of this array type.
  54 
  55   // What kind of vmObject is this?
  56   bool is_array_klass() const { return true; }
  57   bool is_java_klass() const  { return true; }
  58 
  59   // The one-level type of the array elements.
  60   virtual ciKlass* element_klass() { return NULL; }
  61 
  62   static ciArrayKlass* make(ciType* element_type, bool never_null = false);
  63 
  64   int array_header_in_bytes();
  65   ArrayStorageProperties storage_properties();
  66   ciInstance* component_mirror_instance() const;
  67 };
  68 
  69 #endif // SHARE_CI_CIARRAYKLASS_HPP