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| 1 | /* | ||
| 2 | * Copyright (c) 1994, 2003, 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 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 | } | ||