/*
* Copyright (C) 2010-2016 JPEXS, All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
*/
package com.jpexs.decompiler.graph.model;
import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
import com.jpexs.decompiler.flash.helpers.GraphTextWriter;
import com.jpexs.decompiler.flash.helpers.LoopWithType;
import com.jpexs.decompiler.flash.helpers.NulWriter;
import com.jpexs.decompiler.graph.Block;
import com.jpexs.decompiler.graph.CompilationException;
import com.jpexs.decompiler.graph.GraphSourceItem;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.Loop;
import com.jpexs.decompiler.graph.SourceGenerator;
import com.jpexs.decompiler.graph.TypeItem;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author JPEXS
*/
public class WhileItem extends LoopItem implements Block {
public List<GraphTargetItem> expression;
public List<GraphTargetItem> commands;
private boolean labelUsed;
@Override
public List<List<GraphTargetItem>> getSubs() {
List<List<GraphTargetItem>> ret = new ArrayList<>();
if (expression != null) {
ret.add(expression);
}
if (commands != null) {
ret.add(commands);
}
return ret;
}
public WhileItem(GraphSourceItem src, GraphSourceItem lineStartIns, Loop loop, List<GraphTargetItem> expression, List<GraphTargetItem> commands) {
super(src, lineStartIns, loop);
this.expression = expression;
this.commands = commands;
}
@Override
public GraphTextWriter appendTo(GraphTextWriter writer, LocalData localData) throws InterruptedException {
if (writer instanceof NulWriter) {
((NulWriter) writer).startLoop(loop.id, LoopWithType.LOOP_TYPE_LOOP);
}
if (labelUsed) {
writer.append("loop").append(loop.id).append(":").newLine();
}
writer.append("while");
if (writer.getFormatting().spaceBeforeParenthesesWhileParentheses) {
writer.append(" ");
}
writer.append("(");
for (int i = 0; i < expression.size(); i++) {
if (expression.get(i).isEmpty()) {
continue;
}
if (i != 0) {
writer.append(", ");
}
if (i == expression.size() - 1) {
expression.get(i).toStringBoolean(writer, localData);
} else {
expression.get(i).toString(writer, localData);
}
}
writer.append(")");
appendBlock(expression.get(expression.size() - 1), writer, localData, commands);
if (writer instanceof NulWriter) {
LoopWithType loopOjb = ((NulWriter) writer).endLoop(loop.id);
labelUsed = loopOjb.used;
}
return writer;
}
@Override
public List<ContinueItem> getContinues() {
List<ContinueItem> ret = new ArrayList<>();
for (GraphTargetItem ti : commands) {
if (ti instanceof ContinueItem) {
ret.add((ContinueItem) ti);
}
if (ti instanceof Block) {
ret.addAll(((Block) ti).getContinues());
}
}
return ret;
}
@Override
public boolean needsSemicolon() {
return false;
}
@Override
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
return generator.generate(localData, this);
}
@Override
public boolean hasReturnValue() {
return false;
}
@Override
public GraphTargetItem returnType() {
return TypeItem.UNBOUNDED;
}
}