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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.struct.gen.VarType;
import org.jetbrains.java.decompiler.util.InterpreterUtil;
import org.jetbrains.java.decompiler.util.ListStack;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class IfExprent extends Exprent {
public static final int IF_EQ = 0;
public static final int IF_NE = 1;
public static final int IF_LT = 2;
public static final int IF_GE = 3;
public static final int IF_GT = 4;
public static final int IF_LE = 5;
public static final int IF_NULL = 6;
public static final int IF_NONNULL = 7;
public static final int IF_ICMPEQ = 8;
public static final int IF_ICMPNE = 9;
public static final int IF_ICMPLT = 10;
public static final int IF_ICMPGE = 11;
public static final int IF_ICMPGT = 12;
public static final int IF_ICMPLE = 13;
public static final int IF_ACMPEQ = 14;
public static final int IF_ACMPNE = 15;
public static final int IF_CAND = 16;
public static final int IF_COR = 17;
public static final int IF_NOT = 18;
public static final int IF_VALUE = 19;
private static final int[] functypes = new int[]{
FunctionExprent.FUNCTION_EQ,
FunctionExprent.FUNCTION_NE,
FunctionExprent.FUNCTION_LT,
FunctionExprent.FUNCTION_GE,
FunctionExprent.FUNCTION_GT,
FunctionExprent.FUNCTION_LE,
FunctionExprent.FUNCTION_EQ,
FunctionExprent.FUNCTION_NE,
FunctionExprent.FUNCTION_EQ,
FunctionExprent.FUNCTION_NE,
FunctionExprent.FUNCTION_LT,
FunctionExprent.FUNCTION_GE,
FunctionExprent.FUNCTION_GT,
FunctionExprent.FUNCTION_LE,
FunctionExprent.FUNCTION_EQ,
FunctionExprent.FUNCTION_NE,
FunctionExprent.FUNCTION_CADD,
FunctionExprent.FUNCTION_COR,
FunctionExprent.FUNCTION_BOOLNOT,
-1
};
private Exprent condition;
{
this.type = EXPRENT_IF;
}
public IfExprent(int iftype, ListStack<Exprent> stack) {
if (iftype <= IF_LE) {
stack.push(new ConstExprent(0, true));
}
else if (iftype <= IF_NONNULL) {
stack.push(new ConstExprent(VarType.VARTYPE_NULL, null));
}
if (iftype == IF_VALUE) {
condition = stack.pop();
}
else {
condition = new FunctionExprent(functypes[iftype], stack);
}
}
private IfExprent(Exprent condition) {
this.condition = condition;
}
public Exprent copy() {
return new IfExprent(condition.copy());
}
public List<Exprent> getAllExprents() {
List<Exprent> lst = new ArrayList<Exprent>();
lst.add(condition);
return lst;
}
public String toJava(int indent) {
return "if(" + condition.toJava(indent) + ")";
}
public boolean equals(Object o) {
if (o == this) return true;
if (o == null || !(o instanceof IfExprent)) return false;
IfExprent ie = (IfExprent)o;
return InterpreterUtil.equalObjects(condition, ie.getCondition());
}
public void replaceExprent(Exprent oldexpr, Exprent newexpr) {
if (oldexpr == condition) {
condition = newexpr;
}
}
public IfExprent negateIf() {
condition = new FunctionExprent(FunctionExprent.FUNCTION_BOOLNOT,
Arrays.asList(new Exprent[]{condition}));
return this;
}
public Exprent getCondition() {
return condition;
}
public void setCondition(Exprent condition) {
this.condition = condition;
}
}
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