org.codehaus.groovy.antlr.java.Groovifier Maven / Gradle / Ivy

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/*
 * Copyright 2003-2010 the original author or authors.
 *
 * 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.codehaus.groovy.antlr.java;

import org.codehaus.groovy.antlr.GroovySourceAST;
import org.codehaus.groovy.antlr.parser.GroovyTokenTypes;
import org.codehaus.groovy.antlr.treewalker.VisitorAdapter;

public class Groovifier extends VisitorAdapter implements GroovyTokenTypes {
    private String[] tokenNames;
    private String currentClassName = "";
    private boolean cleanRedundantPublic;

    public Groovifier(String[] tokenNames) {
        this(tokenNames, true);
    }

    public Groovifier(String[] tokenNames, boolean cleanRedundantPublic) {
        this.tokenNames = tokenNames;
        this.cleanRedundantPublic = cleanRedundantPublic;
    }

    public void visitClassDef(GroovySourceAST t,int visit) {
        if (visit == OPENING_VISIT) {
            currentClassName = t.childOfType(GroovyTokenTypes.IDENT).getText();
        }
    }
    public void visitDefault(GroovySourceAST t,int visit) {
        if (visit == OPENING_VISIT) {
            // only want to do this once per node...

            // remove 'public' when implied already if requested
            if (t.getType() == LITERAL_public && cleanRedundantPublic) {
                t.setType(EXPR);
            }

            // constructors are not distinguished from methods in java ast
            if (t.getType() == METHOD_DEF) {
                String methodName = t.childOfType(IDENT).getText();
                if (methodName != null && methodName.length() > 0) {
                    if (methodName.equals(currentClassName)) {
                        t.setType(CTOR_IDENT);
                    }
                }
            }


/*          if (t.getType() == MODIFIERS) {
                GroovySourceAST publicNode = t.childOfType(LITERAL_public);
                if (t.getNumberOfChildren() > 1 && publicNode != null) {
                    // has more than one modifier, and one of them is public

                    // delete 'public' node
                    publicNode.setType(EXPR); // near enough the same as delete for now...
                }
            }*/
            // ----
        }
    }
}