Showing the changes to java/pkg/sun/reflect/UnsafeFieldAccessorFactory.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2001, 2004, 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.reflect; | |
| 27 | + | |
| 28 | +import java.lang.reflect.Field; | |
| 29 | +import java.lang.reflect.Modifier; | |
| 30 | + | |
| 31 | +class UnsafeFieldAccessorFactory { | |
| 32 | + static FieldAccessor newFieldAccessor(Field field, boolean override) { | |
| 33 | + Class type = field.getType(); | |
| 34 | + boolean isStatic = Modifier.isStatic(field.getModifiers()); | |
| 35 | + boolean isFinal = Modifier.isFinal(field.getModifiers()); | |
| 36 | + boolean isVolatile = Modifier.isVolatile(field.getModifiers()); | |
| 37 | + boolean isQualified = isFinal || isVolatile; | |
| 38 | + boolean isReadOnly = isFinal && (isStatic || !override); | |
| 39 | + if (isStatic) { | |
| 40 | + // This code path does not guarantee that the field's | |
| 41 | + // declaring class has been initialized, but it must be | |
| 42 | + // before performing reflective operations. | |
| 43 | + UnsafeFieldAccessorImpl.unsafe.ensureClassInitialized(field.getDeclaringClass()); | |
| 44 | + | |
| 45 | + if (!isQualified) { | |
| 46 | + if (type == Boolean.TYPE) { | |
| 47 | + return new UnsafeStaticBooleanFieldAccessorImpl(field); | |
| 48 | + } else if (type == Byte.TYPE) { | |
| 49 | + return new UnsafeStaticByteFieldAccessorImpl(field); | |
| 50 | + } else if (type == Short.TYPE) { | |
| 51 | + return new UnsafeStaticShortFieldAccessorImpl(field); | |
| 52 | + } else if (type == Character.TYPE) { | |
| 53 | + return new UnsafeStaticCharacterFieldAccessorImpl(field); | |
| 54 | + } else if (type == Integer.TYPE) { | |
| 55 | + return new UnsafeStaticIntegerFieldAccessorImpl(field); | |
| 56 | + } else if (type == Long.TYPE) { | |
| 57 | + return new UnsafeStaticLongFieldAccessorImpl(field); | |
| 58 | + } else if (type == Float.TYPE) { | |
| 59 | + return new UnsafeStaticFloatFieldAccessorImpl(field); | |
| 60 | + } else if (type == Double.TYPE) { | |
| 61 | + return new UnsafeStaticDoubleFieldAccessorImpl(field); | |
| 62 | + } else { | |
| 63 | + return new UnsafeStaticObjectFieldAccessorImpl(field); | |
| 64 | + } | |
| 65 | + } else { | |
| 66 | + if (type == Boolean.TYPE) { | |
| 67 | + return new UnsafeQualifiedStaticBooleanFieldAccessorImpl(field, isReadOnly); | |
| 68 | + } else if (type == Byte.TYPE) { | |
| 69 | + return new UnsafeQualifiedStaticByteFieldAccessorImpl(field, isReadOnly); | |
| 70 | + } else if (type == Short.TYPE) { | |
| 71 | + return new UnsafeQualifiedStaticShortFieldAccessorImpl(field, isReadOnly); | |
| 72 | + } else if (type == Character.TYPE) { | |
| 73 | + return new UnsafeQualifiedStaticCharacterFieldAccessorImpl(field, isReadOnly); | |
| 74 | + } else if (type == Integer.TYPE) { | |
| 75 | + return new UnsafeQualifiedStaticIntegerFieldAccessorImpl(field, isReadOnly); | |
| 76 | + } else if (type == Long.TYPE) { | |
| 77 | + return new UnsafeQualifiedStaticLongFieldAccessorImpl(field, isReadOnly); | |
| 78 | + } else if (type == Float.TYPE) { | |
| 79 | + return new UnsafeQualifiedStaticFloatFieldAccessorImpl(field, isReadOnly); | |
| 80 | + } else if (type == Double.TYPE) { | |
| 81 | + return new UnsafeQualifiedStaticDoubleFieldAccessorImpl(field, isReadOnly); | |
| 82 | + } else { | |
| 83 | + return new UnsafeQualifiedStaticObjectFieldAccessorImpl(field, isReadOnly); | |
| 84 | + } | |
| 85 | + } | |
| 86 | + } else { | |
| 87 | + if (!isQualified) { | |
| 88 | + if (type == Boolean.TYPE) { | |
| 89 | + return new UnsafeBooleanFieldAccessorImpl(field); | |
| 90 | + } else if (type == Byte.TYPE) { | |
| 91 | + return new UnsafeByteFieldAccessorImpl(field); | |
| 92 | + } else if (type == Short.TYPE) { | |
| 93 | + return new UnsafeShortFieldAccessorImpl(field); | |
| 94 | + } else if (type == Character.TYPE) { | |
| 95 | + return new UnsafeCharacterFieldAccessorImpl(field); | |
| 96 | + } else if (type == Integer.TYPE) { | |
| 97 | + return new UnsafeIntegerFieldAccessorImpl(field); | |
| 98 | + } else if (type == Long.TYPE) { | |
| 99 | + return new UnsafeLongFieldAccessorImpl(field); | |
| 100 | + } else if (type == Float.TYPE) { | |
| 101 | + return new UnsafeFloatFieldAccessorImpl(field); | |
| 102 | + } else if (type == Double.TYPE) { | |
| 103 | + return new UnsafeDoubleFieldAccessorImpl(field); | |
| 104 | + } else { | |
| 105 | + return new UnsafeObjectFieldAccessorImpl(field); | |
| 106 | + } | |
| 107 | + } else { | |
| 108 | + if (type == Boolean.TYPE) { | |
| 109 | + return new UnsafeQualifiedBooleanFieldAccessorImpl(field, isReadOnly); | |
| 110 | + } else if (type == Byte.TYPE) { | |
| 111 | + return new UnsafeQualifiedByteFieldAccessorImpl(field, isReadOnly); | |
| 112 | + } else if (type == Short.TYPE) { | |
| 113 | + return new UnsafeQualifiedShortFieldAccessorImpl(field, isReadOnly); | |
| 114 | + } else if (type == Character.TYPE) { | |
| 115 | + return new UnsafeQualifiedCharacterFieldAccessorImpl(field, isReadOnly); | |
| 116 | + } else if (type == Integer.TYPE) { | |
| 117 | + return new UnsafeQualifiedIntegerFieldAccessorImpl(field, isReadOnly); | |
| 118 | + } else if (type == Long.TYPE) { | |
| 119 | + return new UnsafeQualifiedLongFieldAccessorImpl(field, isReadOnly); | |
| 120 | + } else if (type == Float.TYPE) { | |
| 121 | + return new UnsafeQualifiedFloatFieldAccessorImpl(field, isReadOnly); | |
| 122 | + } else if (type == Double.TYPE) { | |
| 123 | + return new UnsafeQualifiedDoubleFieldAccessorImpl(field, isReadOnly); | |
| 124 | + } else { | |
| 125 | + return new UnsafeQualifiedObjectFieldAccessorImpl(field, isReadOnly); | |
| 126 | + } | |
| 127 | + } | |
| 128 | + } | |
| 129 | + } | |
| 130 | +} | |