MacroDirective.java

/*
 * Copyright 2011-2013 HTTL Team.
 *  
 * 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 httl.ast;

import httl.Node;
import httl.util.StringUtils;

import java.text.ParseException;

/**
 * MacroDirective. (SPI, Prototype, ThreadSafe)
 *
 * @author @author Liang Fei (liangfei0201 AT gmail DOT com)
 */
public class MacroDirective extends BlockDirective {

    private final String name;

    public MacroDirective(String name, int offset) throws ParseException {
        super(offset);
        if (!StringUtils.isNamed(name)) {
            throw new ParseException("Illegal macro name " + name + ", Can not contains any symbol.", offset);
        }
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setParent(Node parent) throws ParseException {
        if (parent.getClass() != MacroDirective.class && parent.getClass() != RootDirective.class)
            throw new ParseException("Can not define macro inside the #" + parent.getClass().getSimpleName().toLowerCase() + " directive.", getOffset());
        super.setParent(parent);
    }

    @Override
    public String toString() {
        return "#macro(" + name + ")";
    }

}