plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/lang/psi/impl/auxiliary/modifiers/GrModifierListImpl.java - platform/tools/idea - Git at Google

 /*
  * Copyright 2000-2014 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.lang.psi.impl.auxiliary.modifiers;

 import com.intellij.lang.ASTNode;
 import com.intellij.psi.*;
 import com.intellij.psi.stubs.IStubElementType;
 import com.intellij.psi.tree.IElementType;
 import com.intellij.psi.util.CachedValueProvider;
 import com.intellij.psi.util.CachedValuesManager;
 import com.intellij.psi.util.PsiModificationTracker;
 import com.intellij.util.ArrayFactory;
 import com.intellij.util.IncorrectOperationException;
 import com.intellij.util.containers.ContainerUtil;
 import gnu.trove.TObjectIntHashMap;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.plugins.groovy.config.GroovyConfigUtils;
 import org.jetbrains.plugins.groovy.lang.lexer.GroovyTokenTypes;
 import org.jetbrains.plugins.groovy.lang.lexer.TokenSets;
 import org.jetbrains.plugins.groovy.lang.parser.GroovyElementTypes;
 import org.jetbrains.plugins.groovy.lang.psi.GroovyElementVisitor;
 import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory;
 import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.GrModifier;
 import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.GrModifierFlags;
 import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.GrModifierList;
 import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.annotation.GrAnnotation;
 import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrField;
 import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrVariable;
 import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrVariableDeclaration;
 import org.jetbrains.plugins.groovy.lang.psi.api.statements.params.GrParameter;
 import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinition;
 import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinitionBody;
 import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrEnumConstant;
 import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod;
 import org.jetbrains.plugins.groovy.lang.psi.api.toplevel.packaging.GrPackageDefinition;
 import org.jetbrains.plugins.groovy.lang.psi.impl.GrStubElementBase;
 import org.jetbrains.plugins.groovy.lang.psi.impl.PsiImplUtil;
 import org.jetbrains.plugins.groovy.lang.psi.stubs.GrModifierListStub;

 import java.util.ArrayList;
 import java.util.Map;

 /**
  * @autor: Dmitry.Krasilschikov
  * @date: 18.03.2007
  */
 @SuppressWarnings({"StaticFieldReferencedViaSubclass"})
 public class GrModifierListImpl extends GrStubElementBase<GrModifierListStub> implements GrModifierList, StubBasedPsiElement<GrModifierListStub> {
   public static final TObjectIntHashMap<String> NAME_TO_MODIFIER_FLAG_MAP = new TObjectIntHashMap<String>();
   public static final Map<String, IElementType> NAME_TO_MODIFIER_ELEMENT_TYPE = ContainerUtil.newHashMap();
   private static final ArrayFactory<GrAnnotation> ARRAY_FACTORY = new ArrayFactory<GrAnnotation>() {
     @NotNull
     @Override
     public GrAnnotation[] create(int count) {
       return new GrAnnotation[count];
     }
   };

   private static final TObjectIntHashMap<String> PRIORITY = new TObjectIntHashMap<String>(16);

   static {
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.PUBLIC, GrModifierFlags.PUBLIC_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.PROTECTED, GrModifierFlags.PROTECTED_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.PRIVATE, GrModifierFlags.PRIVATE_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.PACKAGE_LOCAL, GrModifierFlags.PACKAGE_LOCAL_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.STATIC, GrModifierFlags.STATIC_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.ABSTRACT, GrModifierFlags.ABSTRACT_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.FINAL, GrModifierFlags.FINAL_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.NATIVE, GrModifierFlags.NATIVE_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.SYNCHRONIZED, GrModifierFlags.SYNCHRONIZED_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.STRICTFP, GrModifierFlags.STRICTFP_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.TRANSIENT, GrModifierFlags.TRANSIENT_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.VOLATILE, GrModifierFlags.VOLATILE_MASK);
     NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.DEF, GrModifierFlags.DEF_MASK);


     PRIORITY.put(GrModifier.PUBLIC,           0);
     PRIORITY.put(GrModifier.PROTECTED,        0);
     PRIORITY.put(GrModifier.PRIVATE,          0);
     PRIORITY.put(GrModifier.PACKAGE_LOCAL,    0);
     PRIORITY.put(GrModifier.STATIC,           1);
     PRIORITY.put(GrModifier.ABSTRACT,         1);
     PRIORITY.put(GrModifier.FINAL,            2);
     PRIORITY.put(GrModifier.NATIVE,           3);
     PRIORITY.put(GrModifier.SYNCHRONIZED,     3);
     PRIORITY.put(GrModifier.STRICTFP,         3);
     PRIORITY.put(GrModifier.TRANSIENT,        3);
     PRIORITY.put(GrModifier.VOLATILE,         3);
     PRIORITY.put(GrModifier.DEF,              4);

     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.PUBLIC, GroovyTokenTypes.kPUBLIC);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.ABSTRACT, GroovyTokenTypes.kABSTRACT);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.NATIVE, GroovyTokenTypes.kNATIVE);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.PRIVATE, GroovyTokenTypes.kPRIVATE);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.PROTECTED, GroovyTokenTypes.kPROTECTED);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.SYNCHRONIZED, GroovyTokenTypes.kSYNCHRONIZED);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.STRICTFP, GroovyTokenTypes.kSTRICTFP);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.STATIC, GroovyTokenTypes.kSTATIC);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.FINAL, GroovyTokenTypes.kFINAL);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.TRANSIENT, GroovyTokenTypes.kTRANSIENT);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.NATIVE, GroovyTokenTypes.kNATIVE);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.DEF, GroovyTokenTypes.kDEF);
     NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.VOLATILE, GroovyTokenTypes.kVOLATILE);
   }

   private static final String[] VISIBILITY_MODIFIERS = {GrModifier.PUBLIC, GrModifier.PROTECTED, GrModifier.PRIVATE};

   public GrModifierListImpl(@NotNull ASTNode node) {
     super(node);
   }

   @Override
   public PsiElement getParent() {
     return getParentByStub();
   }

   public GrModifierListImpl(GrModifierListStub stub) {
     this(stub, GroovyElementTypes.MODIFIERS);
   }

   public GrModifierListImpl(GrModifierListStub stub, IStubElementType nodeType) {
     super(stub, nodeType);
   }

   @Override
   public void accept(GroovyElementVisitor visitor) {
     visitor.visitModifierList(this);
   }

   public String toString() {
     return "Modifiers";
   }

   @Override
   @NotNull
   public PsiElement[] getModifiers() {
     final ArrayList<PsiElement> result = new ArrayList<PsiElement>();
     for (PsiElement cur = getFirstChild(); cur != null; cur = cur.getNextSibling()) {
       if (cur instanceof GrAnnotation || TokenSets.MODIFIERS.contains(cur.getNode().getElementType())) {
         result.add(cur);
       }
     }

     return result.toArray(new PsiElement[result.size()]);
   }

   @Override
   public boolean hasExplicitVisibilityModifiers() {
     final GrModifierListStub stub = getStub();
     if (stub != null) {
       return (stub.getModifiersFlags() & (GrModifierFlags.PUBLIC_MASK | GrModifierFlags.PROTECTED_MASK | GrModifierFlags.PRIVATE_MASK)) != 0;
     }

     for (@GrModifier.GrModifierConstant String type : VISIBILITY_MODIFIERS) {
       if (hasExplicitModifier(type)) return true;
     }
     return false;
   }

   public static boolean checkModifierProperty(@NotNull GrModifierList modifierList, @GrModifier.GrModifierConstant @NotNull String modifier) {
     final PsiElement owner = modifierList.getParent();
     if (owner instanceof GrVariableDeclaration && owner.getParent() instanceof GrTypeDefinitionBody) {
       PsiElement pParent = owner.getParent().getParent();
       if (!modifierList.hasExplicitVisibilityModifiers()) { //properties are backed by private fields
         if (!(pParent instanceof GrTypeDefinition && isInterface((GrTypeDefinition)pParent))) {
           if (modifier.equals(GrModifier.PRIVATE)) return true;
           if (modifier.equals(GrModifier.PROTECTED)) return false;
           if (modifier.equals(GrModifier.PUBLIC)) return false;
         }
       }

       if (pParent instanceof GrTypeDefinition && isInterface((GrTypeDefinition)pParent)) {
         if (modifier.equals(GrModifier.STATIC)) return true;
         if (modifier.equals(GrModifier.FINAL)) return true;
       }
       if (pParent instanceof GrTypeDefinition) {
         PsiModifierList pModifierList = ((GrTypeDefinition)pParent).getModifierList();
         if (pModifierList != null && !modifierList.hasExplicitVisibilityModifiers() && PsiImplUtil.hasImmutableAnnotation(pModifierList)) {
           if (modifier.equals(GrModifier.FINAL)) return true;
         }
       }
     }

     if (owner instanceof GrMethod && owner.getParent() instanceof GrTypeDefinitionBody) {
       PsiElement parent = owner.getParent().getParent();
       if (parent instanceof GrTypeDefinition && ((GrTypeDefinition)parent).isInterface()) {
         if (GrModifier.ABSTRACT.equals(modifier)) return true;
         if (!((GrTypeDefinition)parent).isTrait() && GrModifier.PUBLIC.equals(modifier)) return true;
       }
     }

     if (modifierList.hasExplicitModifier(modifier)) {
       return true;
     }

     if (modifier.equals(GrModifier.PUBLIC)) {
       if (owner instanceof GrPackageDefinition) return false;
       if (owner instanceof GrVariableDeclaration && !(owner.getParent() instanceof GrTypeDefinitionBody) || owner instanceof GrVariable) {
         return false;
       }
       //groovy type definitions and methods are public by default
       return !modifierList.hasExplicitModifier(GrModifier.PRIVATE) && !modifierList.hasExplicitModifier(GrModifier.PROTECTED);
     }

     if (owner instanceof GrTypeDefinition) {
       final GrTypeDefinition clazz = (GrTypeDefinition)owner;

       if (modifier.equals(GrModifier.STATIC)) {
         final PsiClass containingClass = clazz.getContainingClass();
         return containingClass != null && containingClass.isInterface();
       }
       if (modifier.equals(GrModifier.ABSTRACT)) {
         if (clazz.isInterface()) return true;
         if (clazz.isEnum() &&
             GroovyConfigUtils.getInstance().isVersionAtLeast(modifierList, GroovyConfigUtils.GROOVY2_0)) {
           for (GrMethod method : clazz.getCodeMethods()) {
             if (method.hasModifierProperty(PsiModifier.ABSTRACT)) return true;
           }
         }
       }
       if (modifier.equals(GrModifier.FINAL)) {
         if (clazz.isEnum()) {
           final GrField[] fields = clazz.getFields();
           for (GrField field : fields) {
             if (field instanceof GrEnumConstant && ((GrEnumConstant)field).getInitializingClass() != null) {
               return false;
             }
           }
           return true;
         }
       }
     }

     return false;
   }

   private static boolean isInterface(GrTypeDefinition pParent) {
     return pParent.isInterface() && !pParent.isTrait();
   }

   @Override
   public boolean hasModifierProperty(@NotNull @NonNls String modifier) {
     return checkModifierProperty(this, modifier);
   }

   @Override
   public boolean hasExplicitModifier(@NotNull @NonNls String name) {
     final GrModifierListStub stub = getStub();
     if (stub != null) {
       return hasMaskExplicitModifier(name, stub.getModifiersFlags());
     }

     return findChildByType(NAME_TO_MODIFIER_ELEMENT_TYPE.get(name)) != null;
   }

   public static boolean hasMaskExplicitModifier(String name, int mask) {
     final int flag = NAME_TO_MODIFIER_FLAG_MAP.get(name);
     return (mask & flag) != 0;
   }

   @Override
   public void setModifierProperty(@NotNull @NonNls String name, boolean doSet) throws IncorrectOperationException {
     if (hasModifierProperty(name) == doSet) return;

     if (doSet) {
       if (GrModifier.PRIVATE.equals(name) ||
           GrModifier.PROTECTED.equals(name) ||
           GrModifier.PUBLIC.equals(name) ||
           GrModifier.PACKAGE_LOCAL.equals(name)) {
         setModifierPropertyInternal(GrModifier.PUBLIC, false);
         setModifierPropertyInternal(GrModifier.PROTECTED, false);
         setModifierPropertyInternal(GrModifier.PRIVATE, false);
       }
     }
     if (GrModifier.PACKAGE_LOCAL.equals(name) /*|| GrModifier.PUBLIC.equals(name)*/) {
       if (getModifiers().length == 0) {
         setModifierProperty(GrModifier.DEF, true);
       }
     }
     else {
       setModifierPropertyInternal(name, doSet);
     }
   }

   @NotNull
   @Override
   public GrAnnotation[] getRawAnnotations() {
     return getStubOrPsiChildren(GroovyElementTypes.ANNOTATION, ARRAY_FACTORY);
   }

   private void setModifierPropertyInternal(String name, boolean doSet) {
     if (doSet) {
       if (isEmptyModifierList()) {
         final PsiElement nextSibling = getNextSibling();
         if (nextSibling != null && !PsiImplUtil.isWhiteSpaceOrNls(nextSibling)) {
           getNode().getTreeParent().addLeaf(TokenType.WHITE_SPACE, " ", nextSibling.getNode());
         }
       }

       PsiElement modifier = GroovyPsiElementFactory.getInstance(getProject()).createModifierFromText(name);
       PsiElement anchor = findAnchor(name);
       addAfter(modifier, anchor);
     }
     else {
       final PsiElement[] modifiers = findChildrenByType(TokenSets.MODIFIERS, PsiElement.class);
       for (PsiElement modifier : modifiers) {
         if (name.equals(modifier.getText())) {
           deleteChildRange(modifier, modifier);
           break;
         }
       }

       if (isEmptyModifierList()) {
         final PsiElement nextSibling = getNextSibling();
         if (nextSibling != null && PsiImplUtil.isWhiteSpaceOrNls(nextSibling)) {
           nextSibling.delete();
         }
       }
     }
   }

   @Override
   public ASTNode addInternal(ASTNode first, ASTNode last, ASTNode anchor, Boolean before) {
     final ASTNode node = super.addInternal(first, last, anchor, before);
     final PsiElement sibling = getNextSibling();
     if (sibling != null && sibling.getText().contains("\n")) {
       sibling.replace(GroovyPsiElementFactory.getInstance(getProject()).createWhiteSpace());
     }
     return node;
   }

   private boolean isEmptyModifierList() {
     return getTextLength() == 0 || getModifiers().length == 0 && getRawAnnotations().length == 0;
   }

   @Nullable
   private PsiElement findAnchor(String name) {
     final int myPriority = PRIORITY.get(name);
     PsiElement anchor = null;

     for (PsiElement modifier : getModifiers()) {
       final int otherPriority = PRIORITY.get(modifier.getText());
       if (otherPriority <= myPriority) {
         anchor = modifier;
       }
       else if (otherPriority > myPriority && anchor != null) {
         break;
       }
     }
     return anchor;
   }

   @Override
   public void checkSetModifierProperty(@NotNull @NonNls String name, boolean value) throws IncorrectOperationException {
   }

   @Override
   @NotNull
   public GrAnnotation[] getAnnotations() {
     return CachedValuesManager.getCachedValue(this, new CachedValueProvider<GrAnnotation[]>() {
       @Nullable
       @Override
       public Result<GrAnnotation[]> compute() {
         return Result.create(GrAnnotationCollector.getResolvedAnnotations(GrModifierListImpl.this), PsiModificationTracker.JAVA_STRUCTURE_MODIFICATION_COUNT);
       }
     });
   }

   @Override
   @NotNull
   public PsiAnnotation[] getApplicableAnnotations() {
     //todo[medvedev]
     return getAnnotations();
   }

   @Override
   @Nullable
   public PsiAnnotation findAnnotation(@NotNull @NonNls String qualifiedName) {
     for (GrAnnotation annotation : getAnnotations()) {
       if (qualifiedName.equals(annotation.getQualifiedName())) {
         return annotation;
       }
     }
     return null;
   }

   @Override
   @NotNull
   public GrAnnotation addAnnotation(@NotNull @NonNls String qualifiedName) {
     final PsiClass psiClass = JavaPsiFacade.getInstance(getProject()).findClass(qualifiedName, getResolveScope());
     final GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(getProject());
     GrAnnotation annotation;
     if (psiClass != null && psiClass.isAnnotationType()) {
       annotation = (GrAnnotation)addAfter(factory.createModifierFromText("@xxx"), null);
       annotation.getClassReference().bindToElement(psiClass);
     }
     else {
       annotation = (GrAnnotation)addAfter(factory.createModifierFromText("@" + qualifiedName), null);
     }

     final PsiElement parent = getParent();
     if (!(parent instanceof GrParameter)) {
       final ASTNode node = annotation.getNode();
       final ASTNode treeNext = node.getTreeNext();
       if (treeNext != null) {
         getNode().addLeaf(TokenType.WHITE_SPACE, "\n", treeNext);
       }
       else {
         parent.getNode().addLeaf(TokenType.WHITE_SPACE, "\n", getNode().getTreeNext());
       }
     }

     return annotation;
   }
 }
	/*
	* Copyright 2000-2014 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.lang.psi.impl.auxiliary.modifiers;

	import com.intellij.lang.ASTNode;
	import com.intellij.psi.*;
	import com.intellij.psi.stubs.IStubElementType;
	import com.intellij.psi.tree.IElementType;
	import com.intellij.psi.util.CachedValueProvider;
	import com.intellij.psi.util.CachedValuesManager;
	import com.intellij.psi.util.PsiModificationTracker;
	import com.intellij.util.ArrayFactory;
	import com.intellij.util.IncorrectOperationException;
	import com.intellij.util.containers.ContainerUtil;
	import gnu.trove.TObjectIntHashMap;
	import org.jetbrains.annotations.NonNls;
	import org.jetbrains.annotations.NotNull;
	import org.jetbrains.annotations.Nullable;
	import org.jetbrains.plugins.groovy.config.GroovyConfigUtils;
	import org.jetbrains.plugins.groovy.lang.lexer.GroovyTokenTypes;
	import org.jetbrains.plugins.groovy.lang.lexer.TokenSets;
	import org.jetbrains.plugins.groovy.lang.parser.GroovyElementTypes;
	import org.jetbrains.plugins.groovy.lang.psi.GroovyElementVisitor;
	import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory;
	import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.GrModifier;
	import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.GrModifierFlags;
	import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.GrModifierList;
	import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.annotation.GrAnnotation;
	import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrField;
	import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrVariable;
	import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrVariableDeclaration;
	import org.jetbrains.plugins.groovy.lang.psi.api.statements.params.GrParameter;
	import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinition;
	import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinitionBody;
	import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrEnumConstant;
	import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod;
	import org.jetbrains.plugins.groovy.lang.psi.api.toplevel.packaging.GrPackageDefinition;
	import org.jetbrains.plugins.groovy.lang.psi.impl.GrStubElementBase;
	import org.jetbrains.plugins.groovy.lang.psi.impl.PsiImplUtil;
	import org.jetbrains.plugins.groovy.lang.psi.stubs.GrModifierListStub;

	import java.util.ArrayList;
	import java.util.Map;

	/**
	* @autor: Dmitry.Krasilschikov
	* @date: 18.03.2007
	*/
	@SuppressWarnings({"StaticFieldReferencedViaSubclass"})
	public class GrModifierListImpl extends GrStubElementBase<GrModifierListStub> implements GrModifierList, StubBasedPsiElement<GrModifierListStub> {
	public static final TObjectIntHashMap<String> NAME_TO_MODIFIER_FLAG_MAP = new TObjectIntHashMap<String>();
	public static final Map<String, IElementType> NAME_TO_MODIFIER_ELEMENT_TYPE = ContainerUtil.newHashMap();
	private static final ArrayFactory<GrAnnotation> ARRAY_FACTORY = new ArrayFactory<GrAnnotation>() {
	@NotNull
	@Override
	public GrAnnotation[] create(int count) {
	return new GrAnnotation[count];
	}
	};

	private static final TObjectIntHashMap<String> PRIORITY = new TObjectIntHashMap<String>(16);

	static {
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.PUBLIC, GrModifierFlags.PUBLIC_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.PROTECTED, GrModifierFlags.PROTECTED_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.PRIVATE, GrModifierFlags.PRIVATE_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.PACKAGE_LOCAL, GrModifierFlags.PACKAGE_LOCAL_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.STATIC, GrModifierFlags.STATIC_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.ABSTRACT, GrModifierFlags.ABSTRACT_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.FINAL, GrModifierFlags.FINAL_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.NATIVE, GrModifierFlags.NATIVE_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.SYNCHRONIZED, GrModifierFlags.SYNCHRONIZED_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.STRICTFP, GrModifierFlags.STRICTFP_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.TRANSIENT, GrModifierFlags.TRANSIENT_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.VOLATILE, GrModifierFlags.VOLATILE_MASK);
	NAME_TO_MODIFIER_FLAG_MAP.put(GrModifier.DEF, GrModifierFlags.DEF_MASK);


	PRIORITY.put(GrModifier.PUBLIC, 0);
	PRIORITY.put(GrModifier.PROTECTED, 0);
	PRIORITY.put(GrModifier.PRIVATE, 0);
	PRIORITY.put(GrModifier.PACKAGE_LOCAL, 0);
	PRIORITY.put(GrModifier.STATIC, 1);
	PRIORITY.put(GrModifier.ABSTRACT, 1);
	PRIORITY.put(GrModifier.FINAL, 2);
	PRIORITY.put(GrModifier.NATIVE, 3);
	PRIORITY.put(GrModifier.SYNCHRONIZED, 3);
	PRIORITY.put(GrModifier.STRICTFP, 3);
	PRIORITY.put(GrModifier.TRANSIENT, 3);
	PRIORITY.put(GrModifier.VOLATILE, 3);
	PRIORITY.put(GrModifier.DEF, 4);

	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.PUBLIC, GroovyTokenTypes.kPUBLIC);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.ABSTRACT, GroovyTokenTypes.kABSTRACT);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.NATIVE, GroovyTokenTypes.kNATIVE);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.PRIVATE, GroovyTokenTypes.kPRIVATE);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.PROTECTED, GroovyTokenTypes.kPROTECTED);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.SYNCHRONIZED, GroovyTokenTypes.kSYNCHRONIZED);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.STRICTFP, GroovyTokenTypes.kSTRICTFP);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.STATIC, GroovyTokenTypes.kSTATIC);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.FINAL, GroovyTokenTypes.kFINAL);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.TRANSIENT, GroovyTokenTypes.kTRANSIENT);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.NATIVE, GroovyTokenTypes.kNATIVE);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.DEF, GroovyTokenTypes.kDEF);
	NAME_TO_MODIFIER_ELEMENT_TYPE.put(GrModifier.VOLATILE, GroovyTokenTypes.kVOLATILE);
	}

	private static final String[] VISIBILITY_MODIFIERS = {GrModifier.PUBLIC, GrModifier.PROTECTED, GrModifier.PRIVATE};

	public GrModifierListImpl(@NotNull ASTNode node) {
	super(node);
	}

	@Override
	public PsiElement getParent() {
	return getParentByStub();
	}

	public GrModifierListImpl(GrModifierListStub stub) {
	this(stub, GroovyElementTypes.MODIFIERS);
	}

	public GrModifierListImpl(GrModifierListStub stub, IStubElementType nodeType) {
	super(stub, nodeType);
	}

	@Override
	public void accept(GroovyElementVisitor visitor) {
	visitor.visitModifierList(this);
	}

	public String toString() {
	return "Modifiers";
	}

	@Override
	@NotNull
	public PsiElement[] getModifiers() {
	final ArrayList<PsiElement> result = new ArrayList<PsiElement>();
	for (PsiElement cur = getFirstChild(); cur != null; cur = cur.getNextSibling()) {
	if (cur instanceof GrAnnotation \|\| TokenSets.MODIFIERS.contains(cur.getNode().getElementType())) {
	result.add(cur);
	}
	}

	return result.toArray(new PsiElement[result.size()]);
	}

	@Override
	public boolean hasExplicitVisibilityModifiers() {
	final GrModifierListStub stub = getStub();
	if (stub != null) {
	return (stub.getModifiersFlags() & (GrModifierFlags.PUBLIC_MASK \| GrModifierFlags.PROTECTED_MASK \| GrModifierFlags.PRIVATE_MASK)) != 0;
	}

	for (@GrModifier.GrModifierConstant String type : VISIBILITY_MODIFIERS) {
	if (hasExplicitModifier(type)) return true;
	}
	return false;
	}

	public static boolean checkModifierProperty(@NotNull GrModifierList modifierList, @GrModifier.GrModifierConstant @NotNull String modifier) {
	final PsiElement owner = modifierList.getParent();
	if (owner instanceof GrVariableDeclaration && owner.getParent() instanceof GrTypeDefinitionBody) {
	PsiElement pParent = owner.getParent().getParent();
	if (!modifierList.hasExplicitVisibilityModifiers()) { //properties are backed by private fields
	if (!(pParent instanceof GrTypeDefinition && isInterface((GrTypeDefinition)pParent))) {
	if (modifier.equals(GrModifier.PRIVATE)) return true;
	if (modifier.equals(GrModifier.PROTECTED)) return false;
	if (modifier.equals(GrModifier.PUBLIC)) return false;
	}
	}

	if (pParent instanceof GrTypeDefinition && isInterface((GrTypeDefinition)pParent)) {
	if (modifier.equals(GrModifier.STATIC)) return true;
	if (modifier.equals(GrModifier.FINAL)) return true;
	}
	if (pParent instanceof GrTypeDefinition) {
	PsiModifierList pModifierList = ((GrTypeDefinition)pParent).getModifierList();
	if (pModifierList != null && !modifierList.hasExplicitVisibilityModifiers() && PsiImplUtil.hasImmutableAnnotation(pModifierList)) {
	if (modifier.equals(GrModifier.FINAL)) return true;
	}
	}
	}

	if (owner instanceof GrMethod && owner.getParent() instanceof GrTypeDefinitionBody) {
	PsiElement parent = owner.getParent().getParent();
	if (parent instanceof GrTypeDefinition && ((GrTypeDefinition)parent).isInterface()) {
	if (GrModifier.ABSTRACT.equals(modifier)) return true;
	if (!((GrTypeDefinition)parent).isTrait() && GrModifier.PUBLIC.equals(modifier)) return true;
	}
	}

	if (modifierList.hasExplicitModifier(modifier)) {
	return true;
	}

	if (modifier.equals(GrModifier.PUBLIC)) {
	if (owner instanceof GrPackageDefinition) return false;
	if (owner instanceof GrVariableDeclaration && !(owner.getParent() instanceof GrTypeDefinitionBody) \|\| owner instanceof GrVariable) {
	return false;
	}
	//groovy type definitions and methods are public by default
	return !modifierList.hasExplicitModifier(GrModifier.PRIVATE) && !modifierList.hasExplicitModifier(GrModifier.PROTECTED);
	}

	if (owner instanceof GrTypeDefinition) {
	final GrTypeDefinition clazz = (GrTypeDefinition)owner;

	if (modifier.equals(GrModifier.STATIC)) {
	final PsiClass containingClass = clazz.getContainingClass();
	return containingClass != null && containingClass.isInterface();
	}
	if (modifier.equals(GrModifier.ABSTRACT)) {
	if (clazz.isInterface()) return true;
	if (clazz.isEnum() &&
	GroovyConfigUtils.getInstance().isVersionAtLeast(modifierList, GroovyConfigUtils.GROOVY2_0)) {
	for (GrMethod method : clazz.getCodeMethods()) {
	if (method.hasModifierProperty(PsiModifier.ABSTRACT)) return true;
	}
	}
	}
	if (modifier.equals(GrModifier.FINAL)) {
	if (clazz.isEnum()) {
	final GrField[] fields = clazz.getFields();
	for (GrField field : fields) {
	if (field instanceof GrEnumConstant && ((GrEnumConstant)field).getInitializingClass() != null) {
	return false;
	}
	}
	return true;
	}
	}
	}

	return false;
	}

	private static boolean isInterface(GrTypeDefinition pParent) {
	return pParent.isInterface() && !pParent.isTrait();
	}

	@Override
	public boolean hasModifierProperty(@NotNull @NonNls String modifier) {
	return checkModifierProperty(this, modifier);
	}

	@Override
	public boolean hasExplicitModifier(@NotNull @NonNls String name) {
	final GrModifierListStub stub = getStub();
	if (stub != null) {
	return hasMaskExplicitModifier(name, stub.getModifiersFlags());
	}

	return findChildByType(NAME_TO_MODIFIER_ELEMENT_TYPE.get(name)) != null;
	}

	public static boolean hasMaskExplicitModifier(String name, int mask) {
	final int flag = NAME_TO_MODIFIER_FLAG_MAP.get(name);
	return (mask & flag) != 0;
	}

	@Override
	public void setModifierProperty(@NotNull @NonNls String name, boolean doSet) throws IncorrectOperationException {
	if (hasModifierProperty(name) == doSet) return;

	if (doSet) {
	if (GrModifier.PRIVATE.equals(name) \|\|
	GrModifier.PROTECTED.equals(name) \|\|
	GrModifier.PUBLIC.equals(name) \|\|
	GrModifier.PACKAGE_LOCAL.equals(name)) {
	setModifierPropertyInternal(GrModifier.PUBLIC, false);
	setModifierPropertyInternal(GrModifier.PROTECTED, false);
	setModifierPropertyInternal(GrModifier.PRIVATE, false);
	}
	}
	if (GrModifier.PACKAGE_LOCAL.equals(name) /\|\| GrModifier.PUBLIC.equals(name)/) {
	if (getModifiers().length == 0) {
	setModifierProperty(GrModifier.DEF, true);
	}
	}
	else {
	setModifierPropertyInternal(name, doSet);
	}
	}

	@NotNull
	@Override
	public GrAnnotation[] getRawAnnotations() {
	return getStubOrPsiChildren(GroovyElementTypes.ANNOTATION, ARRAY_FACTORY);
	}

	private void setModifierPropertyInternal(String name, boolean doSet) {
	if (doSet) {
	if (isEmptyModifierList()) {
	final PsiElement nextSibling = getNextSibling();
	if (nextSibling != null && !PsiImplUtil.isWhiteSpaceOrNls(nextSibling)) {
	getNode().getTreeParent().addLeaf(TokenType.WHITE_SPACE, " ", nextSibling.getNode());
	}
	}

	PsiElement modifier = GroovyPsiElementFactory.getInstance(getProject()).createModifierFromText(name);
	PsiElement anchor = findAnchor(name);
	addAfter(modifier, anchor);
	}
	else {
	final PsiElement[] modifiers = findChildrenByType(TokenSets.MODIFIERS, PsiElement.class);
	for (PsiElement modifier : modifiers) {
	if (name.equals(modifier.getText())) {
	deleteChildRange(modifier, modifier);
	break;
	}
	}

	if (isEmptyModifierList()) {
	final PsiElement nextSibling = getNextSibling();
	if (nextSibling != null && PsiImplUtil.isWhiteSpaceOrNls(nextSibling)) {
	nextSibling.delete();
	}
	}
	}
	}

	@Override
	public ASTNode addInternal(ASTNode first, ASTNode last, ASTNode anchor, Boolean before) {
	final ASTNode node = super.addInternal(first, last, anchor, before);
	final PsiElement sibling = getNextSibling();
	if (sibling != null && sibling.getText().contains("\n")) {
	sibling.replace(GroovyPsiElementFactory.getInstance(getProject()).createWhiteSpace());
	}
	return node;
	}

	private boolean isEmptyModifierList() {
	return getTextLength() == 0 \|\| getModifiers().length == 0 && getRawAnnotations().length == 0;
	}

	@Nullable
	private PsiElement findAnchor(String name) {
	final int myPriority = PRIORITY.get(name);
	PsiElement anchor = null;

	for (PsiElement modifier : getModifiers()) {
	final int otherPriority = PRIORITY.get(modifier.getText());
	if (otherPriority <= myPriority) {
	anchor = modifier;
	}
	else if (otherPriority > myPriority && anchor != null) {
	break;
	}
	}
	return anchor;
	}

	@Override
	public void checkSetModifierProperty(@NotNull @NonNls String name, boolean value) throws IncorrectOperationException {
	}

	@Override
	@NotNull
	public GrAnnotation[] getAnnotations() {
	return CachedValuesManager.getCachedValue(this, new CachedValueProvider<GrAnnotation[]>() {
	@Nullable
	@Override
	public Result<GrAnnotation[]> compute() {
	return Result.create(GrAnnotationCollector.getResolvedAnnotations(GrModifierListImpl.this), PsiModificationTracker.JAVA_STRUCTURE_MODIFICATION_COUNT);
	}
	});
	}

	@Override
	@NotNull
	public PsiAnnotation[] getApplicableAnnotations() {
	//todo[medvedev]
	return getAnnotations();
	}

	@Override
	@Nullable
	public PsiAnnotation findAnnotation(@NotNull @NonNls String qualifiedName) {
	for (GrAnnotation annotation : getAnnotations()) {
	if (qualifiedName.equals(annotation.getQualifiedName())) {
	return annotation;
	}
	}
	return null;
	}

	@Override
	@NotNull
	public GrAnnotation addAnnotation(@NotNull @NonNls String qualifiedName) {
	final PsiClass psiClass = JavaPsiFacade.getInstance(getProject()).findClass(qualifiedName, getResolveScope());
	final GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(getProject());
	GrAnnotation annotation;
	if (psiClass != null && psiClass.isAnnotationType()) {
	annotation = (GrAnnotation)addAfter(factory.createModifierFromText("@xxx"), null);
	annotation.getClassReference().bindToElement(psiClass);
	}
	else {
	annotation = (GrAnnotation)addAfter(factory.createModifierFromText("@" + qualifiedName), null);
	}

	final PsiElement parent = getParent();
	if (!(parent instanceof GrParameter)) {
	final ASTNode node = annotation.getNode();
	final ASTNode treeNext = node.getTreeNext();
	if (treeNext != null) {
	getNode().addLeaf(TokenType.WHITE_SPACE, "\n", treeNext);
	}
	else {
	parent.getNode().addLeaf(TokenType.WHITE_SPACE, "\n", getNode().getTreeNext());
	}
	}

	return annotation;
	}
	}