| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed 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.jetbrains.java.decompiler.modules.decompiler.exps; |
| |
| import org.jetbrains.java.decompiler.code.CodeConstants; |
| import org.jetbrains.java.decompiler.main.ClassesProcessor.ClassNode; |
| import org.jetbrains.java.decompiler.main.DecompilerContext; |
| import org.jetbrains.java.decompiler.main.rels.MethodWrapper; |
| import org.jetbrains.java.decompiler.modules.decompiler.ExprProcessor; |
| import org.jetbrains.java.decompiler.modules.decompiler.vars.CheckTypesResult; |
| import org.jetbrains.java.decompiler.struct.attr.StructExceptionsAttribute; |
| import org.jetbrains.java.decompiler.struct.gen.VarType; |
| import org.jetbrains.java.decompiler.util.InterpreterUtil; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| |
| public class ExitExprent extends Exprent { |
| |
| public static final int EXIT_RETURN = 0; |
| public static final int EXIT_THROW = 1; |
| |
| // return or throw statement |
| private int exittype; |
| |
| private Exprent value; |
| |
| private VarType rettype; |
| |
| { |
| this.type = EXPRENT_EXIT; |
| } |
| |
| public ExitExprent(int exittype, Exprent value, VarType rettype) { |
| this.exittype = exittype; |
| this.value = value; |
| this.rettype = rettype; |
| } |
| |
| public Exprent copy() { |
| return new ExitExprent(exittype, value == null ? null : value.copy(), rettype); |
| } |
| |
| public CheckTypesResult checkExprTypeBounds() { |
| CheckTypesResult result = new CheckTypesResult(); |
| |
| if (exittype == EXIT_RETURN && rettype.type != CodeConstants.TYPE_VOID) { |
| result.addMinTypeExprent(value, VarType.getMinTypeInFamily(rettype.type_family)); |
| result.addMaxTypeExprent(value, rettype); |
| } |
| |
| return result; |
| } |
| |
| public List<Exprent> getAllExprents() { |
| List<Exprent> lst = new ArrayList<Exprent>(); |
| if (value != null) { |
| lst.add(value); |
| } |
| return lst; |
| } |
| |
| public String toJava(int indent) { |
| if (exittype == EXIT_RETURN) { |
| StringBuilder buffer = new StringBuilder(); |
| |
| if (rettype.type != CodeConstants.TYPE_VOID) { |
| buffer.append(" "); |
| ExprProcessor.getCastedExprent(value, rettype, buffer, indent, false); |
| } |
| |
| return "return" + buffer.toString(); |
| } |
| else { |
| |
| MethodWrapper meth = (MethodWrapper)DecompilerContext.getProperty(DecompilerContext.CURRENT_METHOD_WRAPPER); |
| ClassNode node = ((ClassNode)DecompilerContext.getProperty(DecompilerContext.CURRENT_CLASS_NODE)); |
| |
| if (meth != null && node != null) { |
| StructExceptionsAttribute attr = (StructExceptionsAttribute)meth.methodStruct.getAttributes().getWithKey("Exceptions"); |
| |
| if (attr != null) { |
| String classname = null; |
| |
| for (int i = 0; i < attr.getThrowsExceptions().size(); i++) { |
| String excclassname = attr.getExcClassname(i, node.classStruct.getPool()); |
| if ("java/lang/Throwable".equals(excclassname)) { |
| classname = excclassname; |
| break; |
| } |
| else if ("java/lang/Exception".equals(excclassname)) { |
| classname = excclassname; |
| } |
| } |
| |
| if (classname != null) { |
| VarType exctype = new VarType(classname, true); |
| |
| StringBuilder buffer = new StringBuilder(); |
| ExprProcessor.getCastedExprent(value, exctype, buffer, indent, false); |
| |
| return "throw " + buffer.toString(); |
| } |
| } |
| } |
| |
| return "throw " + value.toJava(indent); |
| } |
| } |
| |
| public boolean equals(Object o) { |
| if (o == this) return true; |
| if (o == null || !(o instanceof ExitExprent)) return false; |
| |
| ExitExprent et = (ExitExprent)o; |
| return exittype == et.getExittype() && |
| InterpreterUtil.equalObjects(value, et.getValue()); |
| } |
| |
| public void replaceExprent(Exprent oldexpr, Exprent newexpr) { |
| if (oldexpr == value) { |
| value = newexpr; |
| } |
| } |
| |
| public int getExittype() { |
| return exittype; |
| } |
| |
| public Exprent getValue() { |
| return value; |
| } |
| |
| public VarType getRettype() { |
| return rettype; |
| } |
| } |