com.htmlhifive.tools.rhino.FunctionBodyVisitor.java Source code

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Here is the source code for com.htmlhifive.tools.rhino.FunctionBodyVisitor.java

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/*
 * Copyright (C) 2012 NS Solutions Corporation
 *
 * 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 com.htmlhifive.tools.rhino;

import org.apache.commons.lang.StringUtils;
import org.mozilla.javascript.ast.AstNode;
import org.mozilla.javascript.ast.Block;
import org.mozilla.javascript.ast.FunctionNode;
import org.mozilla.javascript.ast.NodeVisitor;
import org.mozilla.javascript.ast.Word;

public class FunctionBodyVisitor implements NodeVisitor {

    private Block functionBody;

    private FunctionNode functionNode;

    private Word startWord;

    public FunctionBodyVisitor(AstNode node) {

        node.visit(this);
    }

    @Override
    public boolean visit(AstNode node) {

        if (node instanceof FunctionNode) {
            this.functionBody = (Block) ((FunctionNode) node).getBody();
            this.functionNode = (FunctionNode) node;
            functionBody.visit(new NodeVisitor() {

                @Override
                public boolean visit(AstNode node) {

                    if (node instanceof Word
                            && StringUtils.equals("{", StringUtils.strip(((Word) node).getValue()))) {
                        if (startWord == null) {
                            startWord = (Word) node;
                        }
                        return false;
                    }
                    return true;
                }
            });
            return false;
        }
        return true;
    }

    public Block getFunctionBody() {

        return functionBody;
    }

    public FunctionNode getFunctionNode() {

        return functionNode;
    }

    public Word getStartWord() {

        return startWord;
    }

}