001    /*
002     * Copyright 2010-2015 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.kotlin.psi;
018    
019    import com.intellij.lang.ASTNode;
020    import com.intellij.psi.PsiComment;
021    import com.intellij.psi.PsiElement;
022    import com.intellij.psi.PsiWhiteSpace;
023    import com.intellij.psi.util.PsiTreeUtil;
024    import com.intellij.util.IncorrectOperationException;
025    import org.jetbrains.annotations.NotNull;
026    import org.jetbrains.kotlin.lexer.KtTokens;
027    import org.jetbrains.kotlin.psi.stubs.KotlinPlaceHolderStub;
028    import org.jetbrains.kotlin.psi.stubs.elements.KtStubElementTypes;
029    
030    import java.util.Arrays;
031    import java.util.List;
032    
033    public class KtSuperTypeList extends KtElementImplStub<KotlinPlaceHolderStub<KtSuperTypeList>> {
034        public KtSuperTypeList(@NotNull ASTNode node) {
035            super(node);
036        }
037    
038        public KtSuperTypeList(@NotNull KotlinPlaceHolderStub<KtSuperTypeList> stub) {
039            super(stub, KtStubElementTypes.SUPER_TYPE_LIST);
040        }
041    
042        @Override
043        public <R, D> R accept(@NotNull KtVisitor<R, D> visitor, D data) {
044            return visitor.visitSuperTypeList(this, data);
045        }
046    
047        @NotNull
048        public KtSuperTypeListEntry addEntry(@NotNull KtSuperTypeListEntry entry) {
049            return EditCommaSeparatedListHelper.INSTANCE.addItem(this, getEntries(), entry);
050        }
051    
052        public void removeEntry(@NotNull KtSuperTypeListEntry entry) {
053            EditCommaSeparatedListHelper.INSTANCE.removeItem(entry);
054            if (getEntries().isEmpty()) {
055                delete();
056            }
057        }
058    
059        @Override
060        public void delete() throws IncorrectOperationException {
061            PsiElement left = PsiTreeUtil.skipSiblingsBackward(this, PsiWhiteSpace.class, PsiComment.class);
062            if (left == null || left.getNode().getElementType() != KtTokens.COLON) left = this;
063            getParent().deleteChildRange(left, this);
064        }
065    
066        public List<KtSuperTypeListEntry> getEntries() {
067            return Arrays.asList(getStubOrPsiChildren(KtStubElementTypes.SUPER_TYPE_LIST_ENTRIES, KtSuperTypeListEntry.ARRAY_FACTORY));
068        }
069    }