1 /*
   2  * Copyright (c) 2010, 2013, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.nashorn.internal.codegen.types;
  27 
  28 import jdk.internal.org.objectweb.asm.MethodVisitor;
  29 
  30 /**
  31  * Array operations, not supported by all ops
  32  */
  33 interface BytecodeArrayOps {
  34 
  35     /**
  36      * Load an array element given that the array and its index are already on
  37      * the stack
  38      *
  39      * @param method method visitor
  40      * @return the array element type
  41      *
  42      */
  43     Type aload(MethodVisitor method);
  44 
  45     /**
  46      * Store an array element given that the array and its index and the element
  47      * are on the stack
  48      *
  49      * @param method method visitor
  50      */
  51     void astore(MethodVisitor method);
  52 
  53     /**
  54      * Generate an array length operation
  55      *
  56      * @param method method method visitor
  57      * @return length of the array
  58      */
  59     Type arraylength(MethodVisitor method);
  60 
  61     /**
  62      * Create a new array of this array type and length on stack
  63      *
  64      * @param method method visitor
  65      * @return the type of the array
  66      */
  67     Type newarray(MethodVisitor method);
  68 
  69     /**
  70      * Create a new multi array of this array type and allocate the number of
  71      * dimensions given
  72      *
  73      * @param method method visitor
  74      * @param dims   number of dimensions
  75      * @return the type of the new array
  76      */
  77     Type newarray(MethodVisitor method, int dims);
  78 }