/*
* 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.flash.abc.avm2.parser.script;
import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
import com.jpexs.decompiler.flash.abc.avm2.instructions.AVM2Instructions;
import com.jpexs.decompiler.flash.abc.types.Multiname;
import com.jpexs.decompiler.flash.helpers.GraphTextWriter;
import com.jpexs.decompiler.graph.CompilationException;
import com.jpexs.decompiler.graph.GraphSourceItem;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.SourceGenerator;
import com.jpexs.decompiler.graph.TypeItem;
import com.jpexs.decompiler.graph.model.LocalData;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
*
* @author JPEXS
*/
public class IndexAVM2Item extends AssignableAVM2Item {
private final List<NamespaceItem> openedNamespaces;
public GraphTargetItem object;
public GraphTargetItem index;
public boolean attr;
public IndexAVM2Item(boolean attr, GraphTargetItem object, GraphTargetItem index, GraphTargetItem storeValue, List<NamespaceItem> openedNamespaces) {
super(storeValue);
this.object = object;
this.index = index;
this.openedNamespaces = openedNamespaces;
this.attr = attr;
}
private int allNsSet(AbcIndexing abc) throws CompilationException {
int[] nssa = new int[openedNamespaces.size()];
for (int i = 0; i < nssa.length; i++) {
nssa[i] = openedNamespaces.get(i).getCpoolIndex(abc);
}
return abc.getSelectedAbc().constants.getNamespaceSetId(nssa, true);
}
@Override
public GraphTextWriter appendTo(GraphTextWriter writer, LocalData localData) throws InterruptedException {
return null;
}
@Override
public boolean hasReturnValue() {
return true;
}
@Override
public GraphTargetItem returnType() {
return TypeItem.UNBOUNDED;
}
@Override
public AssignableAVM2Item copy() {
return new IndexAVM2Item(attr, object, index, assignedValue, openedNamespaces);
}
@Override
public List<GraphSourceItem> toSourceChange(SourceGeneratorLocalData localData, SourceGenerator generator, boolean post, boolean decrement, boolean needsReturn) throws CompilationException {
Reference<Integer> obj_temp = new Reference<>(-1);
Reference<Integer> index_temp = new Reference<>(-1);
Reference<Integer> val_temp = new Reference<>(-1);
AVM2SourceGenerator g = (AVM2SourceGenerator) generator;
int indexPropIndex = g.abcIndex.getSelectedAbc().constants.getMultinameId(Multiname.createMultinameL(attr, allNsSet(g.abcIndex)), true);
return toSourceMerge(localData, generator,
object, dupSetTemp(localData, generator, obj_temp),
index, dupSetTemp(localData, generator, index_temp),
ins(AVM2Instructions.GetProperty, indexPropIndex),
post ? ins(AVM2Instructions.ConvertD) : null,
(!post) ? (decrement ? ins(AVM2Instructions.Decrement) : ins(AVM2Instructions.Increment)) : null,
needsReturn ? ins(AVM2Instructions.Dup) : null,
post ? (decrement ? ins(AVM2Instructions.Decrement) : ins(AVM2Instructions.Increment)) : null,
setTemp(localData, generator, val_temp),
getTemp(localData, generator, obj_temp),
getTemp(localData, generator, index_temp),
getTemp(localData, generator, val_temp),
ins(AVM2Instructions.SetProperty, indexPropIndex),
killTemp(localData, generator, Arrays.asList(val_temp, obj_temp, index_temp))
);
}
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator, boolean needsReturn, boolean call, List<GraphTargetItem> callargs, boolean delete, boolean construct) throws CompilationException {
AVM2SourceGenerator g = (AVM2SourceGenerator) generator;
int indexPropIndex = g.abcIndex.getSelectedAbc().constants.getMultinameId(Multiname.createMultinameL(attr, allNsSet(g.abcIndex)), true);
Reference<Integer> ret_temp = new Reference<>(-1);
if (assignedValue != null) {
return toSourceMerge(localData, generator,
object,
index,
assignedValue,
needsReturn ? dupSetTemp(localData, generator, ret_temp) : null,
ins(AVM2Instructions.SetProperty, indexPropIndex),
needsReturn ? getTemp(localData, generator, ret_temp) : null,
killTemp(localData, generator, Arrays.asList(ret_temp)));
} else {
return toSourceMerge(localData, generator,
object,
call ? ins(AVM2Instructions.Dup) : null,
index,
construct ? callargs : null,
ins(construct ? AVM2Instructions.ConstructProp : delete ? AVM2Instructions.DeleteProperty : AVM2Instructions.GetProperty, indexPropIndex, construct ? callargs.size() : null),
call ? callargs : null,
call ? ins(AVM2Instructions.Call, callargs.size()) : null,
needsReturn ? null : ins(AVM2Instructions.Pop));
}
}
@Override
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
return toSource(localData, generator, true, false, new ArrayList<>(), false, false);
}
@Override
public List<GraphSourceItem> toSourceIgnoreReturnValue(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
return toSource(localData, generator, false, false, new ArrayList<>(), false, false);
}
}