Checkstyle：访问变量名称？

Question

We have a standard that variable names must be spelled different (not just case). For example, this is illegal:

int INDEX = 0;
int index = 0;

I am trying write a Checkstyle extension to support this, but ast.getText() is returning "variable_def" instead of the actual variable name. How do I do it? Thanks.

package check;

import java.util.ArrayList;

import com.puppycrawl.tools.checkstyle.api.Check;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.FullIdent;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;

public class VariableSpelling extends Check {
    private ArrayList<String> variables = new ArrayList<String>();

    public int[] getDefaultTokens() {
        return new int[] { TokenTypes.VARIABLE_DEF };
    }

    /**
     * This method is called when a node is found
     */
    public void visitToken(DetailAST ast) {
        String var = ast.getText();
    }
}

Answer 1

Nevermind. I found the problem. You can't get the text of a VARIABLE_DEF. You have to drill down to the IDENT...then get the text on that.