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/*
* Copyright 2000-2013 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 com.intellij.codeInspection.dataFlow;
import com.intellij.codeInspection.dataFlow.value.DfaConstValue;
import com.intellij.codeInspection.dataFlow.value.DfaValue;
import com.intellij.codeInspection.dataFlow.value.DfaValueFactory;
import com.intellij.codeInspection.dataFlow.value.DfaVariableValue;
import com.intellij.util.containers.ContainerUtil;
import gnu.trove.TIntProcedure;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.List;
/**
* @author peter
*/
class EqClass extends SortedIntSet {
private final DfaValueFactory myFactory;
EqClass(DfaValueFactory factory) {
myFactory = factory;
}
EqClass(EqClass toCopy) {
super(toCopy.toNativeArray());
myFactory = toCopy.myFactory;
}
@Override
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append("(");
for (int i = 0; i < size(); i++) {
if (i > 0) buf.append(", ");
int value = get(i);
DfaValue dfaValue = myFactory.getValue(value);
buf.append(dfaValue);
}
buf.append(")");
return buf.toString();
}
List<DfaVariableValue> getVariables() {
List<DfaVariableValue> vars = ContainerUtil.newArrayList();
for (DfaValue value : getMemberValues()) {
value = DfaMemoryStateImpl.unwrap(value);
if (value instanceof DfaVariableValue) {
vars.add((DfaVariableValue)value);
}
}
return vars;
}
List<DfaValue> getMemberValues() {
final List<DfaValue> result = new ArrayList<DfaValue>(size());
forEach(new TIntProcedure() {
@Override
public boolean execute(int c1) {
DfaValue value = myFactory.getValue(c1);
result.add(value);
return true;
}
});
return result;
}
@Nullable
DfaConstValue findConstant(boolean wrapped) {
for (DfaValue value : getMemberValues()) {
if (wrapped) {
value = DfaMemoryStateImpl.unwrap(value);
}
if (value instanceof DfaConstValue) {
return (DfaConstValue)value;
}
}
return null;
}
@Nullable
private static DfaConstValue asConstantValue(DfaValue value) {
value = DfaMemoryStateImpl.unwrap(value);
return value instanceof DfaConstValue ? (DfaConstValue)value : null;
}
boolean containsConstantsOnly() {
for (int i = 0; i < size(); i++) {
if (asConstantValue(myFactory.getValue(get(i))) == null) {
return false;
}
}
return true;
}
}
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