/*
* Copyright 2000-2016 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.plugins.groovy.refactoring.introduceParameterObject;
import com.intellij.codeInsight.highlighting.ReadWriteAccessDetector;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiNamedElement;
import com.intellij.psi.PsiType;
import com.intellij.psi.search.LocalSearchScope;
import com.intellij.psi.search.searches.ReferencesSearch;
import com.intellij.refactoring.RefactoringActionHandler;
import com.intellij.refactoring.changeSignature.ChangeInfo;
import com.intellij.refactoring.changeSignature.ParameterInfo;
import com.intellij.refactoring.introduceParameterObject.IntroduceParameterObjectClassDescriptor;
import com.intellij.refactoring.introduceParameterObject.IntroduceParameterObjectDelegate;
import com.intellij.refactoring.introduceparameterobject.JavaIntroduceParameterObjectDelegate;
import com.intellij.refactoring.util.CanonicalTypes;
import com.intellij.refactoring.util.FixableUsageInfo;
import com.intellij.usageView.UsageInfo;
import com.intellij.util.VisibilityUtil;
import com.intellij.util.containers.MultiMap;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.arguments.GrArgumentList;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.path.GrCallExpression;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.params.GrParameter;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod;
import org.jetbrains.plugins.groovy.refactoring.changeSignature.GrChangeInfoImpl;
import org.jetbrains.plugins.groovy.refactoring.changeSignature.GrMethodDescriptor;
import org.jetbrains.plugins.groovy.refactoring.changeSignature.GrParameterInfo;
import java.util.Collection;
import java.util.List;
public class GroovyIntroduceParameterObjectDelegate
extends IntroduceParameterObjectDelegate<GrMethod, GrParameterInfo, GroovyIntroduceObjectClassDescriptor> {
@Override
public boolean isEnabledOn(PsiElement element) {
return false;
}
@Override
public RefactoringActionHandler getHandler(PsiElement element) {
return null;
}
@Override
public List<GrParameterInfo> getAllMethodParameters(GrMethod sourceMethod) {
return new GrMethodDescriptor(sourceMethod).getParameters();
}
@Override
public GrParameterInfo createMergedParameterInfo(GroovyIntroduceObjectClassDescriptor descriptor,
GrMethod method,
List<GrParameterInfo> oldMethodParameters) {
final GroovyPsiElementFactory elementFactory = GroovyPsiElementFactory.getInstance(method.getProject());
PsiType classType =
elementFactory.createTypeByFQClassName(StringUtil.getQualifiedName(descriptor.getPackageName(), descriptor.getClassName()));
return new GrParameterInfo(descriptor.getClassName(), null, null, classType, -1, false) {
@Nullable
@Override
public PsiElement getActualValue(PsiElement callExpression, Object substitutor) {
final IntroduceParameterObjectDelegate<PsiNamedElement, ParameterInfo, IntroduceParameterObjectClassDescriptor<PsiNamedElement, ParameterInfo>>
delegate = findDelegate(callExpression);
return delegate != null ? delegate.createNewParameterInitializerAtCallSite(callExpression, descriptor, oldMethodParameters, substitutor) : null;
}
};
}
@Override
public PsiElement createNewParameterInitializerAtCallSite(PsiElement callExpression,
IntroduceParameterObjectClassDescriptor descriptor,
List<? extends ParameterInfo> oldMethodParameters,
Object substitutor) {
if (callExpression instanceof GrCallExpression) {
final GrArgumentList list = ((GrCallExpression)callExpression).getArgumentList();
if (list == null) {
return null;
}
final GrExpression[] args = list.getExpressionArguments();
final String qualifiedName = StringUtil.getQualifiedName(descriptor.getPackageName(), descriptor.getClassName());
String newExpression =
"new " + qualifiedName + '(' + JavaIntroduceParameterObjectDelegate.getMergedArgs(descriptor, oldMethodParameters, args) + ')';
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(callExpression.getProject());
return factory.createExpressionFromText(newExpression, callExpression);
}
return null;
}
@Override
public ChangeInfo createChangeSignatureInfo(GrMethod method, List<GrParameterInfo> newParameterInfos, boolean delegate) {
final PsiType returnType = method.getReturnType();
return new GrChangeInfoImpl(method,
VisibilityUtil.getVisibilityModifier(method.getModifierList()),
returnType != null ? CanonicalTypes.createTypeWrapper(returnType) : null,
method.getName(),
newParameterInfos,
null,
delegate);
}
@Override
public <M1 extends PsiNamedElement, P1 extends ParameterInfo> ReadWriteAccessDetector.Access collectInternalUsages(Collection<FixableUsageInfo> usages,
GrMethod overridingMethod,
IntroduceParameterObjectClassDescriptor<M1, P1> classDescriptor,
P1 parameterInfo,
String mergedParamName) {
final int oldIndex = parameterInfo.getOldIndex();
final GrParameter parameter = overridingMethod.getParameterList().getParameters()[oldIndex];
final ReadWriteAccessDetector.Access[] accessors = new ReadWriteAccessDetector.Access[1];
final String setter = classDescriptor.getSetterName(parameterInfo, overridingMethod);
final String getter = classDescriptor.getGetterName(parameterInfo, overridingMethod);
ReferencesSearch.search(parameter, new LocalSearchScope(overridingMethod)).forEach(reference -> {
final PsiElement element = reference.getElement();
if (element instanceof GrReferenceExpression) {
accessors[0] = ReadWriteAccessDetector.Access.Read;
//todo proceed with write access
usages.add(new GrReplaceParameterReferenceWithCall(element, getter, mergedParamName));
}
return true;
});
return accessors[0];
}
@Override
public void collectUsagesToGenerateMissedFieldAccessors(Collection<FixableUsageInfo> usages,
GrMethod method,
GroovyIntroduceObjectClassDescriptor descriptor,
ReadWriteAccessDetector.Access[] accessors) {
throw new UnsupportedOperationException();
}
@Override
public void collectAdditionalFixes(Collection<FixableUsageInfo> usages,
GrMethod method,
GroovyIntroduceObjectClassDescriptor descriptor) {
throw new UnsupportedOperationException();
}
@Override
public void collectConflicts(MultiMap<PsiElement, String> conflicts,
UsageInfo[] infos,
GrMethod method,
GroovyIntroduceObjectClassDescriptor classDescriptor) {
throw new UnsupportedOperationException();
}
}