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A packaging of the IntelliJ Community Edition java-psi-impl library.
This is release number 1 of trunk branch 142.
The newest version!
/*
* 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.psi.impl.source;
import com.intellij.lang.ASTNode;
import com.intellij.openapi.util.Condition;
import com.intellij.psi.*;
import com.intellij.psi.augment.PsiAugmentProvider;
import com.intellij.psi.impl.CheckUtil;
import com.intellij.psi.impl.PsiImplUtil;
import com.intellij.psi.impl.cache.ModifierFlags;
import com.intellij.psi.impl.java.stubs.JavaStubElementTypes;
import com.intellij.psi.impl.java.stubs.PsiModifierListStub;
import com.intellij.psi.impl.source.codeStyle.CodeEditUtil;
import com.intellij.psi.impl.source.tree.CompositeElement;
import com.intellij.psi.impl.source.tree.Factory;
import com.intellij.psi.impl.source.tree.TreeElement;
import com.intellij.psi.tree.IElementType;
import com.intellij.util.ArrayUtil;
import com.intellij.util.IncorrectOperationException;
import com.intellij.util.containers.ContainerUtil;
import gnu.trove.THashMap;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import java.util.List;
import java.util.Map;
public class PsiModifierListImpl extends JavaStubPsiElement implements PsiModifierList {
private static final Map NAME_TO_KEYWORD_TYPE_MAP;
static {
NAME_TO_KEYWORD_TYPE_MAP = new THashMap();
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.PUBLIC, JavaTokenType.PUBLIC_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.PROTECTED, JavaTokenType.PROTECTED_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.PRIVATE, JavaTokenType.PRIVATE_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.STATIC, JavaTokenType.STATIC_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.ABSTRACT, JavaTokenType.ABSTRACT_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.FINAL, JavaTokenType.FINAL_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.NATIVE, JavaTokenType.NATIVE_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.SYNCHRONIZED, JavaTokenType.SYNCHRONIZED_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.STRICTFP, JavaTokenType.STRICTFP_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.TRANSIENT, JavaTokenType.TRANSIENT_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.VOLATILE, JavaTokenType.VOLATILE_KEYWORD);
NAME_TO_KEYWORD_TYPE_MAP.put(PsiModifier.DEFAULT, JavaTokenType.DEFAULT_KEYWORD);
}
public PsiModifierListImpl(final PsiModifierListStub stub) {
super(stub, JavaStubElementTypes.MODIFIER_LIST);
}
public PsiModifierListImpl(final ASTNode node) {
super(node);
}
@Override
public boolean hasModifierProperty(@NotNull String name) {
final PsiModifierListStub stub = getStub();
if (stub != null) {
return ModifierFlags.hasModifierProperty(name, stub.getModifiersMask());
}
IElementType type = NAME_TO_KEYWORD_TYPE_MAP.get(name);
PsiElement parent = getParent();
if (parent instanceof PsiClass) {
PsiElement grandParent = parent.getParent();
if (grandParent instanceof PsiClass && ((PsiClass)grandParent).isInterface()) {
if (type == JavaTokenType.PUBLIC_KEYWORD) {
return true;
}
if (type == null /* package local */) {
return false;
}
if (type == JavaTokenType.STATIC_KEYWORD) {
return true;
}
}
if (((PsiClass)parent).isInterface()) {
if (type == JavaTokenType.ABSTRACT_KEYWORD) {
return true;
}
// nested interface is implicitly static
if (grandParent instanceof PsiClass) {
if (type == JavaTokenType.STATIC_KEYWORD) {
return true;
}
}
}
if (((PsiClass)parent).isEnum()) {
if (type == JavaTokenType.STATIC_KEYWORD) {
if (!(grandParent instanceof PsiFile)) return true;
}
else if (type == JavaTokenType.FINAL_KEYWORD) {
final PsiField[] fields = ((PsiClass)parent).getFields();
for (PsiField field : fields) {
if (field instanceof PsiEnumConstant && ((PsiEnumConstant)field).getInitializingClass() != null) return false;
}
return true;
}
else if (type == JavaTokenType.ABSTRACT_KEYWORD) {
final PsiMethod[] methods = ((PsiClass)parent).getMethods();
for (PsiMethod method : methods) {
if (method.hasModifierProperty(PsiModifier.ABSTRACT)) return true;
}
return false;
}
}
}
else if (parent instanceof PsiMethod) {
PsiClass aClass = ((PsiMethod)parent).getContainingClass();
if (aClass != null && aClass.isInterface()) {
if (type == JavaTokenType.PUBLIC_KEYWORD) {
return true;
}
if (type == null /* package local */) {
return false;
}
if (type == JavaTokenType.ABSTRACT_KEYWORD) {
final ASTNode node = getNode();
return node.findChildByType(JavaTokenType.DEFAULT_KEYWORD) == null &&
node.findChildByType(JavaTokenType.STATIC_KEYWORD) == null &&
node.findChildByType(JavaTokenType.PRIVATE_KEYWORD) == null;
}
}
else if (aClass != null && aClass.isEnum() && ((PsiMethod)parent).isConstructor()) {
if (type == JavaTokenType.PRIVATE_KEYWORD) {
return true;
}
}
}
else if (parent instanceof PsiField) {
if (parent instanceof PsiEnumConstant) {
return type == JavaTokenType.PUBLIC_KEYWORD || type == JavaTokenType.STATIC_KEYWORD || type == JavaTokenType.FINAL_KEYWORD;
}
else {
PsiClass aClass = ((PsiField)parent).getContainingClass();
if (aClass != null && aClass.isInterface()) {
if (type == JavaTokenType.PUBLIC_KEYWORD) {
return true;
}
if (type == null /* package local */) {
return false;
}
if (type == JavaTokenType.STATIC_KEYWORD) {
return true;
}
if (type == JavaTokenType.FINAL_KEYWORD) {
return true;
}
}
}
}
else if (parent instanceof PsiParameter) {
if (type == JavaTokenType.FINAL_KEYWORD && ((PsiParameter)parent).getType() instanceof PsiDisjunctionType) return true;
}
else if (parent instanceof PsiResourceVariable) {
if (type == JavaTokenType.FINAL_KEYWORD) return true;
}
if (type == null /* package local */) {
return !hasModifierProperty(PsiModifier.PUBLIC) &&
!hasModifierProperty(PsiModifier.PRIVATE) &&
!hasModifierProperty(PsiModifier.PROTECTED);
}
return getNode().findChildByType(type) != null;
}
@Override
public boolean hasExplicitModifier(@NotNull String name) {
final CompositeElement tree = (CompositeElement)getNode();
final IElementType type = NAME_TO_KEYWORD_TYPE_MAP.get(name);
return tree.findChildByType(type) != null;
}
@Override
public void setModifierProperty(@NotNull String name, boolean value) throws IncorrectOperationException{
checkSetModifierProperty(name, value);
PsiElement parent = getParent();
PsiElement grandParent = parent != null ? parent.getParent() : null;
IElementType type = NAME_TO_KEYWORD_TYPE_MAP.get(name);
CompositeElement treeElement = (CompositeElement)getNode();
// There is a possible case that parameters list occupies more than one line and its elements are aligned. Modifiers list change
// changes horizontal position of parameters list start, hence, we need to reformat them in order to preserve alignment.
if (parent instanceof PsiMethod) {
PsiMethod method = (PsiMethod)parent;
CodeEditUtil.markToReformat(method.getParameterList().getNode(), true);
}
if (value) {
if (type == JavaTokenType.PUBLIC_KEYWORD ||
type == JavaTokenType.PRIVATE_KEYWORD ||
type == JavaTokenType.PROTECTED_KEYWORD ||
type == null /* package local */) {
if (type != JavaTokenType.PUBLIC_KEYWORD) {
setModifierProperty(PsiModifier.PUBLIC, false);
}
if (type != JavaTokenType.PRIVATE_KEYWORD) {
setModifierProperty(PsiModifier.PRIVATE, false);
}
if (type != JavaTokenType.PROTECTED_KEYWORD) {
setModifierProperty(PsiModifier.PROTECTED, false);
}
if (type == null) return;
}
if (parent instanceof PsiField && grandParent instanceof PsiClass && ((PsiClass)grandParent).isInterface()) {
if (type == JavaTokenType.PUBLIC_KEYWORD || type == JavaTokenType.STATIC_KEYWORD || type == JavaTokenType.FINAL_KEYWORD) return;
}
else if (parent instanceof PsiMethod && grandParent instanceof PsiClass && ((PsiClass)grandParent).isInterface()) {
if (type == JavaTokenType.PUBLIC_KEYWORD || type == JavaTokenType.ABSTRACT_KEYWORD) return;
}
else if (parent instanceof PsiClass && grandParent instanceof PsiClass && ((PsiClass)grandParent).isInterface()) {
if (type == JavaTokenType.PUBLIC_KEYWORD) return;
}
else if (parent instanceof PsiAnnotationMethod && grandParent instanceof PsiClass && ((PsiClass)grandParent).isAnnotationType()) {
if (type == JavaTokenType.PUBLIC_KEYWORD || type == JavaTokenType.ABSTRACT_KEYWORD) return;
}
if (treeElement.findChildByType(type) == null) {
TreeElement keyword = Factory.createSingleLeafElement(type, name, null, getManager());
treeElement.addInternal(keyword, keyword, null, null);
}
}
else {
if (type == null /* package local */) {
throw new IncorrectOperationException("Cannot reset package local modifier."); //?
}
ASTNode child = treeElement.findChildByType(type);
if (child != null) {
SourceTreeToPsiMap.treeToPsiNotNull(child).delete();
}
}
}
@Override
public void checkSetModifierProperty(@NotNull String name, boolean value) throws IncorrectOperationException{
CheckUtil.checkWritable(this);
}
@Override
@NotNull
public PsiAnnotation[] getAnnotations() {
final PsiAnnotation[] own = getStubOrPsiChildren(JavaStubElementTypes.ANNOTATION, PsiAnnotation.ARRAY_FACTORY);
final List ext = PsiAugmentProvider.collectAugments(this, PsiAnnotation.class);
return ArrayUtil.mergeArrayAndCollection(own, ext, PsiAnnotation.ARRAY_FACTORY);
}
@Override
@NotNull
public PsiAnnotation[] getApplicableAnnotations() {
final PsiAnnotation.TargetType[] targets = PsiImplUtil.getTargetsForLocation(this);
List filtered = ContainerUtil.findAll(getAnnotations(), new Condition() {
@Override
public boolean value(PsiAnnotation annotation) {
PsiAnnotation.TargetType target = PsiImplUtil.findApplicableTarget(annotation, targets);
return target != null && target != PsiAnnotation.TargetType.UNKNOWN;
}
});
return filtered.toArray(new PsiAnnotation[filtered.size()]);
}
@Override
public PsiAnnotation findAnnotation(@NotNull String qualifiedName) {
return PsiImplUtil.findAnnotation(this, qualifiedName);
}
@Override
@NotNull
public PsiAnnotation addAnnotation(@NotNull @NonNls String qualifiedName) {
return (PsiAnnotation)addAfter(JavaPsiFacade.getInstance(getProject()).getElementFactory().createAnnotationFromText("@" + qualifiedName, this), null);
}
@Override
public void accept(@NotNull PsiElementVisitor visitor){
if (visitor instanceof JavaElementVisitor) {
((JavaElementVisitor)visitor).visitModifierList(this);
}
else {
visitor.visitElement(this);
}
}
public String toString(){
return "PsiModifierList:" + getText();
}
}