J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1994-2003 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.tools.tree; |
| 27 | |
| 28 | import sun.tools.java.*; |
| 29 | import sun.tools.asm.*; |
| 30 | import java.io.PrintStream; |
| 31 | import java.util.Hashtable; |
| 32 | |
| 33 | /** |
| 34 | * WARNING: The contents of this source file are not part of any |
| 35 | * supported API. Code that depends on them does so at its own risk: |
| 36 | * they are subject to change or removal without notice. |
| 37 | */ |
| 38 | public |
| 39 | class ArrayExpression extends NaryExpression { |
| 40 | /** |
| 41 | * Constructor |
| 42 | */ |
| 43 | public ArrayExpression(long where, Expression args[]) { |
| 44 | super(ARRAY, where, Type.tError, null, args); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Check expression type |
| 49 | */ |
| 50 | public Vset checkValue(Environment env, Context ctx, Vset vset, Hashtable exp) { |
| 51 | env.error(where, "invalid.array.expr"); |
| 52 | return vset; |
| 53 | } |
| 54 | public Vset checkInitializer(Environment env, Context ctx, Vset vset, Type t, Hashtable exp) { |
| 55 | if (!t.isType(TC_ARRAY)) { |
| 56 | if (!t.isType(TC_ERROR)) { |
| 57 | env.error(where, "invalid.array.init", t); |
| 58 | } |
| 59 | return vset; |
| 60 | } |
| 61 | type = t; |
| 62 | t = t.getElementType(); |
| 63 | for (int i = 0 ; i < args.length ; i++) { |
| 64 | vset = args[i].checkInitializer(env, ctx, vset, t, exp); |
| 65 | args[i] = convert(env, ctx, t, args[i]); |
| 66 | } |
| 67 | return vset; |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * Inline |
| 72 | */ |
| 73 | public Expression inline(Environment env, Context ctx) { |
| 74 | Expression e = null; |
| 75 | for (int i = 0 ; i < args.length ; i++) { |
| 76 | args[i] = args[i].inline(env, ctx); |
| 77 | if (args[i] != null) { |
| 78 | e = (e == null) ? args[i] : new CommaExpression(where, e, args[i]); |
| 79 | } |
| 80 | } |
| 81 | return e; |
| 82 | } |
| 83 | public Expression inlineValue(Environment env, Context ctx) { |
| 84 | for (int i = 0 ; i < args.length ; i++) { |
| 85 | args[i] = args[i].inlineValue(env, ctx); |
| 86 | } |
| 87 | return this; |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Code |
| 92 | */ |
| 93 | public void codeValue(Environment env, Context ctx, Assembler asm) { |
| 94 | int t = 0; |
| 95 | asm.add(where, opc_ldc, new Integer(args.length)); |
| 96 | switch (type.getElementType().getTypeCode()) { |
| 97 | case TC_BOOLEAN: asm.add(where, opc_newarray, new Integer(T_BOOLEAN)); break; |
| 98 | case TC_BYTE: asm.add(where, opc_newarray, new Integer(T_BYTE)); break; |
| 99 | case TC_SHORT: asm.add(where, opc_newarray, new Integer(T_SHORT)); break; |
| 100 | case TC_CHAR: asm.add(where, opc_newarray, new Integer(T_CHAR)); break; |
| 101 | case TC_INT: asm.add(where, opc_newarray, new Integer(T_INT)); break; |
| 102 | case TC_LONG: asm.add(where, opc_newarray, new Integer(T_LONG)); break; |
| 103 | case TC_FLOAT: asm.add(where, opc_newarray, new Integer(T_FLOAT)); break; |
| 104 | case TC_DOUBLE: asm.add(where, opc_newarray, new Integer(T_DOUBLE)); break; |
| 105 | |
| 106 | case TC_ARRAY: |
| 107 | asm.add(where, opc_anewarray, type.getElementType()); |
| 108 | break; |
| 109 | |
| 110 | case TC_CLASS: |
| 111 | asm.add(where, opc_anewarray, env.getClassDeclaration(type.getElementType())); |
| 112 | break; |
| 113 | |
| 114 | default: |
| 115 | throw new CompilerError("codeValue"); |
| 116 | } |
| 117 | |
| 118 | for (int i = 0 ; i < args.length ; i++) { |
| 119 | |
| 120 | // If the array element is the default initial value, |
| 121 | // then don't bother generating code for this element. |
| 122 | if (args[i].equalsDefault()) continue; |
| 123 | |
| 124 | asm.add(where, opc_dup); |
| 125 | asm.add(where, opc_ldc, new Integer(i)); |
| 126 | args[i].codeValue(env, ctx, asm); |
| 127 | switch (type.getElementType().getTypeCode()) { |
| 128 | case TC_BOOLEAN: |
| 129 | case TC_BYTE: |
| 130 | asm.add(where, opc_bastore); |
| 131 | break; |
| 132 | case TC_CHAR: |
| 133 | asm.add(where, opc_castore); |
| 134 | break; |
| 135 | case TC_SHORT: |
| 136 | asm.add(where, opc_sastore); |
| 137 | break; |
| 138 | default: |
| 139 | asm.add(where, opc_iastore + type.getElementType().getTypeCodeOffset()); |
| 140 | } |
| 141 | } |
| 142 | } |
| 143 | } |