org.jetbrains.jet.lang.psi.JetImportDirective Maven / Gradle / Ivy

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/*
 * Copyright 2010-2013 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 org.jetbrains.jet.lang.psi;

import com.intellij.lang.ASTNode;
import com.intellij.psi.tree.IElementType;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.lexer.JetTokens;

public class JetImportDirective extends JetElementImpl {
    public JetImportDirective(@NotNull ASTNode node) {
        super(node);
    }

    @Override
    public  R accept(@NotNull JetVisitor visitor, D data) {
        return visitor.visitImportDirective(this, data);
    }

    public boolean isAbsoluteInRootPackage() {
        return findChildByType(JetTokens.PACKAGE_KEYWORD) != null;
    }

    @Nullable @IfNotParsed
    public JetExpression getImportedReference() {
        return findChildByClass(JetExpression.class);
    }

    @Nullable
    public ASTNode getAliasNameNode() {
        boolean asPassed = false;
        ASTNode childNode = getNode().getFirstChildNode();
        while (childNode != null) {
            IElementType tt = childNode.getElementType();
            if (tt == JetTokens.AS_KEYWORD) asPassed = true;
            if (asPassed && tt == JetTokens.IDENTIFIER) {
                return childNode;
            }

            childNode = childNode.getTreeNext();
        }
        return null;
    }

    @Nullable
    public String getAliasName() {
        ASTNode aliasNameNode = getAliasNameNode();
        if (aliasNameNode == null) {
            return null;
        }
        return aliasNameNode.getText();
    }

    public boolean isAllUnder() {
        return getNode().findChildByType(JetTokens.MUL) != null;
    }
}