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/*
* 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.main.collectors.BytecodeMappingTracer;
import org.jetbrains.java.decompiler.modules.decompiler.ExprProcessor;
import org.jetbrains.java.decompiler.modules.decompiler.vars.CheckTypesResult;
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 ArrayExprent extends Exprent {
private Exprent array;
private Exprent index;
private VarType hardtype;
{
this.type = EXPRENT_ARRAY;
}
public ArrayExprent(Exprent array, Exprent index, VarType hardtype) {
this.array = array;
this.index = index;
this.hardtype = hardtype;
}
public Exprent copy() {
return new ArrayExprent(array.copy(), index.copy(), hardtype);
}
public VarType getExprType() {
VarType exprType = array.getExprType().copy();
if (exprType.equals(VarType.VARTYPE_NULL)) {
exprType = hardtype.copy();
}
else {
exprType.decArrayDim();
}
return exprType;
}
public int getExprentUse() {
return array.getExprentUse() & index.getExprentUse() & Exprent.MULTIPLE_USES;
}
public CheckTypesResult checkExprTypeBounds() {
CheckTypesResult result = new CheckTypesResult();
result.addMinTypeExprent(index, VarType.VARTYPE_BYTECHAR);
result.addMaxTypeExprent(index, VarType.VARTYPE_INT);
return result;
}
public List<Exprent> getAllExprents() {
List<Exprent> lst = new ArrayList<Exprent>();
lst.add(array);
lst.add(index);
return lst;
}
@Override
public String toJava(int indent, BytecodeMappingTracer tracer) {
String res = array.toJava(indent, tracer);
if (array.getPrecedence() > getPrecedence()) { // array precedence equals 0
res = "(" + res + ")";
}
VarType arrtype = array.getExprType();
if (arrtype.arraydim == 0) {
VarType objarr = VarType.VARTYPE_OBJECT.copy();
objarr.arraydim = 1; // type family does not change
res = "((" + ExprProcessor.getCastTypeName(objarr) + ")" + res + ")";
}
tracer.addMapping(bytecode);
return res + "[" + index.toJava(indent, tracer) + "]";
}
public boolean equals(Object o) {
if (o == this) return true;
if (o == null || !(o instanceof ArrayExprent)) return false;
ArrayExprent arr = (ArrayExprent)o;
return InterpreterUtil.equalObjects(array, arr.getArray()) &&
InterpreterUtil.equalObjects(index, arr.getIndex());
}
public void replaceExprent(Exprent oldexpr, Exprent newexpr) {
if (oldexpr == array) {
array = newexpr;
}
if (oldexpr == index) {
index = newexpr;
}
}
public Exprent getArray() {
return array;
}
public Exprent getIndex() {
return index;
}
}
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