| /* |
| * Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved. |
| */ |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.sun.org.apache.bcel.internal.classfile; |
| |
| import java.io.DataInput; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| /** |
| * @since 6.0 |
| * @LastModified: Jan 2020 |
| */ |
| public abstract class ElementValue |
| { |
| private final int type; |
| |
| private final ConstantPool cpool; |
| |
| @Override |
| public String toString() |
| { |
| return stringifyValue(); |
| } |
| |
| protected ElementValue(final int type, final ConstantPool cpool) |
| { |
| this.type = type; |
| this.cpool = cpool; |
| } |
| |
| public int getElementValueType() |
| { |
| return type; |
| } |
| |
| public abstract String stringifyValue(); |
| |
| public abstract void dump(DataOutputStream dos) throws IOException; |
| |
| public static final byte STRING = 's'; |
| public static final byte ENUM_CONSTANT = 'e'; |
| public static final byte CLASS = 'c'; |
| public static final byte ANNOTATION = '@'; |
| public static final byte ARRAY = '['; |
| public static final byte PRIMITIVE_INT = 'I'; |
| public static final byte PRIMITIVE_BYTE = 'B'; |
| public static final byte PRIMITIVE_CHAR = 'C'; |
| public static final byte PRIMITIVE_DOUBLE = 'D'; |
| public static final byte PRIMITIVE_FLOAT = 'F'; |
| public static final byte PRIMITIVE_LONG = 'J'; |
| public static final byte PRIMITIVE_SHORT = 'S'; |
| public static final byte PRIMITIVE_BOOLEAN = 'Z'; |
| |
| public static ElementValue readElementValue(final DataInput input, final ConstantPool cpool) throws IOException |
| { |
| final byte type = input.readByte(); |
| switch (type) |
| { |
| case PRIMITIVE_BYTE: |
| case PRIMITIVE_CHAR: |
| case PRIMITIVE_DOUBLE: |
| case PRIMITIVE_FLOAT: |
| case PRIMITIVE_INT: |
| case PRIMITIVE_LONG: |
| case PRIMITIVE_SHORT: |
| case PRIMITIVE_BOOLEAN: |
| case STRING: |
| return new SimpleElementValue(type, input.readUnsignedShort(), cpool); |
| |
| case ENUM_CONSTANT: |
| return new EnumElementValue(ENUM_CONSTANT, input.readUnsignedShort(), input.readUnsignedShort(), cpool); |
| |
| case CLASS: |
| return new ClassElementValue(CLASS, input.readUnsignedShort(), cpool); |
| |
| case ANNOTATION: |
| // TODO isRuntimeVisible |
| return new AnnotationElementValue(ANNOTATION, AnnotationEntry.read(input, cpool, false), cpool); |
| |
| case ARRAY: |
| final int numArrayVals = input.readUnsignedShort(); |
| final ElementValue[] evalues = new ElementValue[numArrayVals]; |
| for (int j = 0; j < numArrayVals; j++) |
| { |
| evalues[j] = ElementValue.readElementValue(input, cpool); |
| } |
| return new ArrayElementValue(ARRAY, evalues, cpool); |
| |
| default: |
| throw new RuntimeException("Unexpected element value kind in annotation: " + type); |
| } |
| } |
| |
| /** @since 6.0 */ |
| final ConstantPool getConstantPool() { |
| return cpool; |
| } |
| |
| /** @since 6.0 */ |
| final int getType() { |
| return type; |
| } |
| |
| public String toShortString() |
| { |
| return stringifyValue(); |
| } |
| } |