org.sonar.flex.checks.utils.Modifiers.java Source code

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Here is the source code for org.sonar.flex.checks.utils.Modifiers.java

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/*
 * SonarQube Flex Plugin
 * Copyright (C) 2010 SonarSource
 * sonarqube@googlegroups.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */
package org.sonar.flex.checks.utils;

import com.google.common.collect.Sets;
import com.sonar.sslr.api.AstNode;
import com.sonar.sslr.api.AstNodeType;
import org.sonar.flex.FlexGrammar;
import org.sonar.flex.FlexKeyword;

import java.util.Set;

public final class Modifiers {

    private Modifiers() {
    }

    public static Set<AstNodeType> getModifiers(AstNode attributes) {
        Set<AstNodeType> modifiersSet = Sets.newHashSet();

        if (attributes != null && attributes.is(FlexGrammar.ATTRIBUTES)) {
            for (AstNode attribute : attributes.getChildren(FlexGrammar.ATTRIBUTE)) {

                if (attribute.getFirstChild().is(FlexGrammar.RESERVED_NAMESPACE)) {
                    modifiersSet
                            .add(attribute.getFirstChild(FlexGrammar.RESERVED_NAMESPACE).getFirstChild().getType());

                } else if (attribute.getFirstChild().is(FlexGrammar.ATTRIBUTE_EXPR)
                        && attribute.getFirstChild().getNumberOfChildren() == 1) {
                    modifiersSet.add(attribute.getFirstChild().getFirstChild(FlexGrammar.IDENTIFIER).getFirstChild()
                            .getType());
                }
            }
        }
        return modifiersSet;
    }

    public static boolean isNonPublic(Set<AstNodeType> modifiers) {
        for (AstNodeType modifier : modifiers) {
            if (modifier.equals(FlexKeyword.INTERNAL) || modifier.equals(FlexKeyword.PROTECTED)
                    || modifier.equals(FlexKeyword.PRIVATE)) {
                return true;
            }
        }
        return false;
    }

    public static boolean isPublic(AstNode attriutes) {
        Set<AstNodeType> modifiers = getModifiers(attriutes);
        return modifiers.contains(FlexKeyword.PUBLIC) || !isNonPublic(modifiers);
    }

}