| /******************************************************************************* |
| * Copyright (c) 2000, 2013 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Andy Clement - Contributions for |
| * Bug 383624 - [1.8][compiler] Revive code generation support for type annotations (from Olivier's work) |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.core.util; |
| |
| import org.eclipse.jdt.core.util.ClassFormatException; |
| import org.eclipse.jdt.core.util.IAttributeNamesConstants; |
| import org.eclipse.jdt.core.util.IClassFileAttribute; |
| import org.eclipse.jdt.core.util.IConstantPool; |
| import org.eclipse.jdt.core.util.IConstantPoolConstant; |
| import org.eclipse.jdt.core.util.IConstantPoolEntry; |
| import org.eclipse.jdt.core.util.IConstantValueAttribute; |
| import org.eclipse.jdt.core.util.IFieldInfo; |
| import org.eclipse.jdt.core.util.IModifierConstants; |
| |
| /** |
| * Default implementation of IFieldInfo. |
| */ |
| public class FieldInfo extends ClassFileStruct implements IFieldInfo { |
| private int accessFlags; |
| private int attributeBytes; |
| private IClassFileAttribute[] attributes; |
| private int attributesCount; |
| private IConstantValueAttribute constantValueAttribute; |
| private char[] descriptor; |
| private int descriptorIndex; |
| private boolean isDeprecated; |
| private boolean isSynthetic; |
| private char[] name; |
| private int nameIndex; |
| |
| /** |
| * @param classFileBytes byte[] |
| * @param constantPool IConstantPool |
| * @param offset int |
| */ |
| public FieldInfo(byte classFileBytes[], IConstantPool constantPool, int offset) |
| throws ClassFormatException { |
| final int flags = u2At(classFileBytes, 0, offset); |
| this.accessFlags = flags; |
| if ((flags & IModifierConstants.ACC_SYNTHETIC) != 0) { |
| this.isSynthetic = true; |
| } |
| this.nameIndex = u2At(classFileBytes, 2, offset); |
| IConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(this.nameIndex); |
| if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Utf8) { |
| throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY); |
| } |
| this.name = constantPoolEntry.getUtf8Value(); |
| |
| this.descriptorIndex = u2At(classFileBytes, 4, offset); |
| constantPoolEntry = constantPool.decodeEntry(this.descriptorIndex); |
| if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Utf8) { |
| throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY); |
| } |
| this.descriptor = constantPoolEntry.getUtf8Value(); |
| |
| this.attributesCount = u2At(classFileBytes, 6, offset); |
| this.attributes = ClassFileAttribute.NO_ATTRIBUTES; |
| int readOffset = 8; |
| if (this.attributesCount != 0) { |
| this.attributes = new IClassFileAttribute[this.attributesCount]; |
| } |
| int attributesIndex = 0; |
| for (int i = 0; i < this.attributesCount; i++) { |
| constantPoolEntry = constantPool.decodeEntry(u2At(classFileBytes, readOffset, offset)); |
| if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Utf8) { |
| throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY); |
| } |
| char[] attributeName = constantPoolEntry.getUtf8Value(); |
| if (equals(attributeName, IAttributeNamesConstants.DEPRECATED)) { |
| this.isDeprecated = true; |
| this.attributes[attributesIndex++] = new ClassFileAttribute(classFileBytes, constantPool, offset + readOffset); |
| } else if (equals(attributeName, IAttributeNamesConstants.SYNTHETIC)) { |
| this.isSynthetic = true; |
| this.attributes[attributesIndex++] = new ClassFileAttribute(classFileBytes, constantPool, offset + readOffset); |
| } else if (equals(attributeName, IAttributeNamesConstants.CONSTANT_VALUE)) { |
| this.constantValueAttribute = new ConstantValueAttribute(classFileBytes, constantPool, offset + readOffset); |
| this.attributes[attributesIndex++] = this.constantValueAttribute; |
| } else if (equals(attributeName, IAttributeNamesConstants.SIGNATURE)) { |
| this.attributes[attributesIndex++] = new SignatureAttribute(classFileBytes, constantPool, offset + readOffset); |
| } else if (equals(attributeName, IAttributeNamesConstants.RUNTIME_VISIBLE_ANNOTATIONS)) { |
| this.attributes[attributesIndex++] = new RuntimeVisibleAnnotationsAttribute(classFileBytes, constantPool, offset + readOffset); |
| } else if (equals(attributeName, IAttributeNamesConstants.RUNTIME_INVISIBLE_ANNOTATIONS)) { |
| this.attributes[attributesIndex++] = new RuntimeInvisibleAnnotationsAttribute(classFileBytes, constantPool, offset + readOffset); |
| } else if (equals(attributeName, IAttributeNamesConstants.RUNTIME_VISIBLE_TYPE_ANNOTATIONS)) { |
| this.attributes[attributesIndex++] = new RuntimeVisibleTypeAnnotationsAttribute(classFileBytes, constantPool, offset + readOffset); |
| } else if (equals(attributeName, IAttributeNamesConstants.RUNTIME_INVISIBLE_TYPE_ANNOTATIONS)) { |
| this.attributes[attributesIndex++] = new RuntimeInvisibleTypeAnnotationsAttribute(classFileBytes, constantPool, offset + readOffset); |
| } else { |
| this.attributes[attributesIndex++] = new ClassFileAttribute(classFileBytes, constantPool, offset + readOffset); |
| } |
| readOffset += (6 + u4At(classFileBytes, readOffset + 2, offset)); |
| } |
| |
| this.attributeBytes = readOffset; |
| } |
| /** |
| * @see IFieldInfo#getAccessFlags() |
| */ |
| @Override |
| public int getAccessFlags() { |
| return this.accessFlags; |
| } |
| /** |
| * @see IFieldInfo#getAttributeCount() |
| */ |
| @Override |
| public int getAttributeCount() { |
| return this.attributesCount; |
| } |
| |
| /** |
| * @see IFieldInfo#getAttributes() |
| */ |
| @Override |
| public IClassFileAttribute[] getAttributes() { |
| return this.attributes; |
| } |
| |
| /** |
| * @see IFieldInfo#getConstantValueAttribute() |
| */ |
| @Override |
| public IConstantValueAttribute getConstantValueAttribute() { |
| return this.constantValueAttribute; |
| } |
| |
| /** |
| * @see IFieldInfo#getDescriptor() |
| */ |
| @Override |
| public char[] getDescriptor() { |
| return this.descriptor; |
| } |
| |
| /** |
| * @see IFieldInfo#getDescriptorIndex() |
| */ |
| @Override |
| public int getDescriptorIndex() { |
| return this.descriptorIndex; |
| } |
| |
| /** |
| * @see IFieldInfo#getName() |
| */ |
| @Override |
| public char[] getName() { |
| return this.name; |
| } |
| |
| /** |
| * @see IFieldInfo#getNameIndex() |
| */ |
| @Override |
| public int getNameIndex() { |
| return this.nameIndex; |
| } |
| /** |
| * @see IFieldInfo#hasConstantValueAttribute() |
| */ |
| @Override |
| public boolean hasConstantValueAttribute() { |
| return this.constantValueAttribute != null; |
| } |
| |
| /** |
| * @see IFieldInfo#isDeprecated() |
| */ |
| @Override |
| public boolean isDeprecated() { |
| return this.isDeprecated; |
| } |
| |
| /** |
| * @see IFieldInfo#isSynthetic() |
| */ |
| @Override |
| public boolean isSynthetic() { |
| return this.isSynthetic; |
| } |
| |
| int sizeInBytes() { |
| return this.attributeBytes; |
| } |
| } |