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75 lines
2.5 KiB
75 lines
2.5 KiB
// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
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package org.jetbrains.java.decompiler.struct.consts;
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public class LinkConstant extends PooledConstant {
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public int index1, index2;
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public String classname;
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public String elementname;
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public String descriptor;
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public LinkConstant(int type, String classname, String elementname, String descriptor) {
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super(type);
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this.classname = classname;
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this.elementname = elementname;
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this.descriptor = descriptor;
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initConstant();
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}
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public LinkConstant(int type, int index1, int index2) {
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super(type);
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this.index1 = index1;
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this.index2 = index2;
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}
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private void initConstant() {
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if (type == CONSTANT_Methodref ||
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type == CONSTANT_InterfaceMethodref ||
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type == CONSTANT_InvokeDynamic ||
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(type == CONSTANT_MethodHandle && index1 != CONSTANT_MethodHandle_REF_getField && index1 != CONSTANT_MethodHandle_REF_putField)) {
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int parenth = descriptor.indexOf(')');
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if (descriptor.length() < 2 || parenth < 0 || descriptor.charAt(0) != '(') {
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throw new IllegalArgumentException("Invalid descriptor: " + descriptor +
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"; type = " + type + "; classname = " + classname + "; elementname = " + elementname);
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}
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}
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}
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@Override
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public void resolveConstant(ConstantPool pool) {
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if (type == CONSTANT_NameAndType) {
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elementname = pool.getPrimitiveConstant(index1).getString();
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descriptor = pool.getPrimitiveConstant(index2).getString();
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}
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else if (type == CONSTANT_MethodHandle) {
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LinkConstant ref_info = pool.getLinkConstant(index2);
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classname = ref_info.classname;
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elementname = ref_info.elementname;
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descriptor = ref_info.descriptor;
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}
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else {
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if (type != CONSTANT_InvokeDynamic) {
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classname = pool.getPrimitiveConstant(index1).getString();
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}
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LinkConstant nametype = pool.getLinkConstant(index2);
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elementname = nametype.elementname;
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descriptor = nametype.descriptor;
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}
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initConstant();
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}
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@Override
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public boolean equals(Object o) {
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if (o == this) return true;
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if (!(o instanceof LinkConstant)) return false;
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LinkConstant cn = (LinkConstant)o;
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return this.type == cn.type &&
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this.elementname.equals(cn.elementname) &&
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this.descriptor.equals(cn.descriptor) &&
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(this.type != CONSTANT_NameAndType || this.classname.equals(cn.classname));
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}
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} |