145 lines
4.0 KiB
Java
145 lines
4.0 KiB
Java
/*
|
|
* 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.stats;
|
|
|
|
import org.jetbrains.java.decompiler.main.DecompilerContext;
|
|
import org.jetbrains.java.decompiler.modules.decompiler.DecHelper;
|
|
import org.jetbrains.java.decompiler.modules.decompiler.ExprProcessor;
|
|
import org.jetbrains.java.decompiler.modules.decompiler.StatEdge;
|
|
import org.jetbrains.java.decompiler.util.InterpreterUtil;
|
|
|
|
import java.util.Arrays;
|
|
import java.util.List;
|
|
|
|
|
|
public class SequenceStatement extends Statement {
|
|
|
|
|
|
// *****************************************************************************
|
|
// constructors
|
|
// *****************************************************************************
|
|
|
|
private SequenceStatement() {
|
|
type = Statement.TYPE_SEQUENCE;
|
|
}
|
|
|
|
public SequenceStatement(List<Statement> lst) {
|
|
|
|
this();
|
|
|
|
lastBasicType = lst.get(lst.size() - 1).getLastBasicType();
|
|
|
|
for (Statement st : lst) {
|
|
stats.addWithKey(st, st.id);
|
|
}
|
|
|
|
first = stats.get(0);
|
|
}
|
|
|
|
private SequenceStatement(Statement head, Statement tail) {
|
|
|
|
this(Arrays.asList(head, tail));
|
|
|
|
List<StatEdge> lstSuccs = tail.getSuccessorEdges(STATEDGE_DIRECT_ALL);
|
|
if (!lstSuccs.isEmpty()) {
|
|
StatEdge edge = lstSuccs.get(0);
|
|
|
|
if (edge.getType() == StatEdge.TYPE_REGULAR && edge.getDestination() != head) {
|
|
post = edge.getDestination();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// *****************************************************************************
|
|
// public methods
|
|
// *****************************************************************************
|
|
|
|
public static Statement isHead2Block(Statement head) {
|
|
|
|
if (head.getLastBasicType() != Statement.LASTBASICTYPE_GENERAL) {
|
|
return null;
|
|
}
|
|
|
|
// at most one outgoing edge
|
|
StatEdge edge = null;
|
|
List<StatEdge> lstSuccs = head.getSuccessorEdges(STATEDGE_DIRECT_ALL);
|
|
if (!lstSuccs.isEmpty()) {
|
|
edge = lstSuccs.get(0);
|
|
}
|
|
|
|
if (edge != null && edge.getType() == StatEdge.TYPE_REGULAR) {
|
|
Statement stat = edge.getDestination();
|
|
|
|
if (stat != head && stat.getPredecessorEdges(StatEdge.TYPE_REGULAR).size() == 1
|
|
&& !stat.isMonitorEnter()) {
|
|
|
|
if (stat.getLastBasicType() == Statement.LASTBASICTYPE_GENERAL) {
|
|
if (DecHelper.checkStatementExceptions(Arrays.asList(head, stat))) {
|
|
return new SequenceStatement(head, stat);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public String toJava(int indent) {
|
|
|
|
StringBuilder buf = new StringBuilder();
|
|
|
|
String indstr = null;
|
|
boolean islabeled = isLabeled();
|
|
|
|
String new_line_separator = DecompilerContext.getNewLineSeparator();
|
|
|
|
buf.append(ExprProcessor.listToJava(varDefinitions, indent));
|
|
|
|
if (islabeled) {
|
|
indstr = InterpreterUtil.getIndentString(indent);
|
|
indent++;
|
|
buf.append(indstr).append("label").append(this.id).append(": {").append(new_line_separator);
|
|
}
|
|
|
|
boolean notempty = false;
|
|
|
|
for (int i = 0; i < stats.size(); i++) {
|
|
|
|
Statement st = stats.get(i);
|
|
|
|
if (i > 0 && notempty) {
|
|
buf.append(new_line_separator);
|
|
}
|
|
|
|
String str = ExprProcessor.jmpWrapper(st, indent, false);
|
|
buf.append(str);
|
|
|
|
notempty = (str.trim().length() > 0);
|
|
}
|
|
|
|
if (islabeled) {
|
|
buf.append(indstr).append("}").append(new_line_separator);
|
|
}
|
|
|
|
return buf.toString();
|
|
}
|
|
|
|
public Statement getSimpleCopy() {
|
|
return new SequenceStatement();
|
|
}
|
|
}
|