org.jetbrains.kotlin.asJava.KotlinLightParameter Maven / Gradle / Ivy
/*
* Copyright 2010-2015 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.kotlin.asJava;
import com.intellij.lang.Language;
import com.intellij.psi.*;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.search.SearchScope;
import com.intellij.util.ArrayUtil;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.idea.JetLanguage;
import org.jetbrains.kotlin.psi.*;
import org.jetbrains.kotlin.psi.psiUtil.PsiUtilPackage;
import java.util.List;
public class KotlinLightParameter extends LightParameter implements KotlinLightElement {
private static String getName(PsiParameter delegate, int index) {
String name = delegate.getName();
return name != null ? name : "p" + index;
}
private final PsiModifierList modifierList;
private final PsiParameter delegate;
private final int index;
private final KotlinLightMethod method;
public KotlinLightParameter(final PsiParameter delegate, int index, KotlinLightMethod method) {
super(getName(delegate, index), delegate.getType(), method, JetLanguage.INSTANCE);
this.delegate = delegate;
this.index = index;
this.method = method;
this.modifierList = new KotlinLightModifierList(method.getManager(), ArrayUtil.EMPTY_STRING_ARRAY) {
@Override
public PsiAnnotationOwner getDelegate() {
return delegate.getModifierList();
}
};
}
@NotNull
@Override
public PsiModifierList getModifierList() {
return modifierList;
}
@NotNull
@Override
public PsiParameter getDelegate() {
return delegate;
}
@Nullable
@Override
public JetParameter getOrigin() {
JetDeclaration declaration = method.getOrigin();
if (declaration == null) return null;
int jetIndex = PsiUtilPackage.isExtensionDeclaration(declaration) ? index - 1 : index;
if (jetIndex < 0) return null;
if (declaration instanceof JetFunction) {
List paramList = ((JetFunction) declaration).getValueParameters();
return jetIndex < paramList.size() ? paramList.get(jetIndex) : null;
}
if (jetIndex != 0) return null;
JetPropertyAccessor setter = null;
if (declaration instanceof JetPropertyAccessor) {
JetPropertyAccessor accessor = (JetPropertyAccessor) declaration;
setter = accessor.isSetter() ? accessor : null;
}
else if (declaration instanceof JetProperty) {
setter = ((JetProperty) declaration).getSetter();
}
return setter != null ? setter.getParameter() : null;
}
@NotNull
@Override
public PsiElement getNavigationElement() {
JetParameter origin = getOrigin();
return origin != null ? origin : super.getNavigationElement();
}
@Override
public PsiElement setName(@NonNls @NotNull String name) throws IncorrectOperationException {
JetParameter origin = getOrigin();
if (origin != null) {
origin.setName(name);
}
return this;
}
@Override
public PsiFile getContainingFile() {
JetDeclaration declaration = method.getOrigin();
return declaration != null ? declaration.getContainingFile() : super.getContainingFile();
}
@NotNull
@Override
public Language getLanguage() {
return JetLanguage.INSTANCE;
}
@NotNull
@Override
public SearchScope getUseScope() {
JetParameter origin = getOrigin();
return origin != null ? origin.getUseScope() : GlobalSearchScope.EMPTY_SCOPE;
}
public KotlinLightMethod getMethod() {
return method;
}
}