| /* |
| * 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 org.codehaus.groovy.classgen.asm; |
| |
| import org.codehaus.groovy.ast.ClassHelper; |
| import org.codehaus.groovy.ast.ClassNode; |
| import org.objectweb.asm.Label; |
| |
| /** |
| * Represents compile time variable metadata while compiling a method. |
| */ |
| public class BytecodeVariable { |
| |
| public static final BytecodeVariable THIS_VARIABLE = new BytecodeVariable(); |
| public static final BytecodeVariable SUPER_VARIABLE = new BytecodeVariable(); |
| |
| private final int index; |
| private ClassNode type; |
| private String name; |
| private final int prevCurrent; |
| private boolean holder; |
| |
| // br for setting on the LocalVariableTable in the class file |
| // these fields should probably go to jvm Operand class |
| private Label startLabel = null; |
| private Label endLabel = null; |
| private boolean dynamicTyped; |
| |
| private BytecodeVariable(){ |
| dynamicTyped = true; |
| index=0; |
| holder=false; |
| prevCurrent=0; |
| } |
| |
| public BytecodeVariable(int index, ClassNode type, String name, int prevCurrent) { |
| this.index = index; |
| this.type = type; |
| this.name = name; |
| this.prevCurrent = prevCurrent; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public ClassNode getType() { |
| return type; |
| } |
| |
| /** |
| * @return the stack index for this variable |
| */ |
| public int getIndex() { |
| return index; |
| } |
| |
| /** |
| * @return is this local variable shared in other scopes (and so must use a ValueHolder) |
| */ |
| public boolean isHolder() { |
| return holder; |
| } |
| |
| public void setHolder(boolean holder) { |
| this.holder = holder; |
| } |
| |
| public Label getStartLabel() { |
| return startLabel; |
| } |
| |
| public void setStartLabel(Label startLabel) { |
| this.startLabel = startLabel; |
| } |
| |
| public Label getEndLabel() { |
| return endLabel; |
| } |
| |
| public void setEndLabel(Label endLabel) { |
| this.endLabel = endLabel; |
| } |
| |
| public String toString() { |
| return name + "(index=" + index + ",type=" + type + ",holder="+holder+")"; |
| } |
| |
| public void setType(ClassNode type) { |
| this.type = type; |
| dynamicTyped |= type==ClassHelper.DYNAMIC_TYPE; |
| } |
| |
| public void setDynamicTyped(boolean b) { |
| dynamicTyped = b; |
| } |
| |
| public boolean isDynamicTyped() { |
| return dynamicTyped; |
| } |
| |
| public int getPrevIndex() { |
| return prevCurrent; |
| } |
| } |