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122 lines
3.3 KiB
122 lines
3.3 KiB
/*
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* Copyright 2000-2014 JetBrains s.r.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jetbrains.java.decompiler.modules.decompiler.exps;
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import org.jetbrains.java.decompiler.main.TextBuffer;
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import org.jetbrains.java.decompiler.main.collectors.BytecodeMappingTracer;
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import org.jetbrains.java.decompiler.modules.decompiler.vars.CheckTypesResult;
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import org.jetbrains.java.decompiler.struct.gen.VarType;
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import org.jetbrains.java.decompiler.util.InterpreterUtil;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Set;
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public class SwitchExprent extends Exprent {
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private Exprent value;
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private List<List<ConstExprent>> caseValues = new ArrayList<List<ConstExprent>>();
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public SwitchExprent(Exprent value, Set<Integer> bytecodeOffsets) {
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super(EXPRENT_SWITCH);
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this.value = value;
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addBytecodeOffsets(bytecodeOffsets);
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}
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@Override
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public Exprent copy() {
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SwitchExprent swExpr = new SwitchExprent(value.copy(), bytecode);
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List<List<ConstExprent>> lstCaseValues = new ArrayList<List<ConstExprent>>();
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for (List<ConstExprent> lst : caseValues) {
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lstCaseValues.add(new ArrayList<ConstExprent>(lst));
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}
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swExpr.setCaseValues(lstCaseValues);
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return swExpr;
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}
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@Override
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public VarType getExprType() {
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return value.getExprType();
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}
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@Override
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public CheckTypesResult checkExprTypeBounds() {
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CheckTypesResult result = new CheckTypesResult();
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result.addMinTypeExprent(value, VarType.VARTYPE_BYTECHAR);
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result.addMaxTypeExprent(value, VarType.VARTYPE_INT);
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VarType valType = value.getExprType();
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for (List<ConstExprent> lst : caseValues) {
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for (ConstExprent expr : lst) {
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if (expr != null) {
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VarType caseType = expr.getExprType();
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if (!caseType.equals(valType)) {
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valType = VarType.getCommonSupertype(caseType, valType);
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result.addMinTypeExprent(value, valType);
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}
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}
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}
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}
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return result;
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}
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@Override
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public List<Exprent> getAllExprents() {
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List<Exprent> lst = new ArrayList<Exprent>();
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lst.add(value);
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return lst;
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}
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@Override
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public TextBuffer toJava(int indent, BytecodeMappingTracer tracer) {
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tracer.addMapping(bytecode);
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return value.toJava(indent, tracer).enclose("switch(", ")");
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}
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@Override
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public void replaceExprent(Exprent oldExpr, Exprent newExpr) {
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if (oldExpr == value) {
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value = newExpr;
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}
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}
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@Override
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public boolean equals(Object o) {
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if (o == this) {
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return true;
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}
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if (o == null || !(o instanceof SwitchExprent)) {
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return false;
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}
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SwitchExprent sw = (SwitchExprent)o;
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return InterpreterUtil.equalObjects(value, sw.getValue());
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}
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public Exprent getValue() {
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return value;
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}
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public void setCaseValues(List<List<ConstExprent>> caseValues) {
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this.caseValues = caseValues;
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}
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}
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