/*
* 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.model.operations;
import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
import com.jpexs.decompiler.flash.abc.avm2.instructions.AVM2Instruction;
import com.jpexs.decompiler.flash.abc.avm2.instructions.AVM2Instructions;
import com.jpexs.decompiler.flash.ecma.EcmaScript;
import com.jpexs.decompiler.flash.ecma.EcmaType;
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.model.UnaryOpItem;
import com.jpexs.decompiler.graph.model.UnboundedTypeItem;
import java.util.List;
import java.util.Set;
/**
*
* @author JPEXS
*/
public class TypeOfAVM2Item extends UnaryOpItem {
public TypeOfAVM2Item(GraphSourceItem instruction, GraphSourceItem lineStartIns, GraphTargetItem value) {
super(instruction, lineStartIns, PRECEDENCE_UNARY, value, "typeof ", "");
}
@Override
public boolean isCompileTime(Set<GraphTargetItem> dependencies) {
if (dependencies.contains(value)) {
return false;
}
dependencies.add(value);
return value.isCompileTime(dependencies);
}
@Override
public Object getResult() {
Object res = value.getResult();
EcmaType type = EcmaScript.type(res);
switch (type) {
case UNDEFINED:
return "undefined";
case NULL:
return "object";
case BOOLEAN:
return "Boolean";
case NUMBER:
return "number";
case STRING:
return "string";
case OBJECT:
return "object";
}
//TODO: function,xml
return "object";
}
@Override
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
return toSourceMerge(localData, generator, value,
new AVM2Instruction(0, AVM2Instructions.TypeOf, null)
);
}
@Override
public GraphTargetItem returnType() {
return new UnboundedTypeItem();
}
}