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PredicateExtractor.java

package edu.ksu.cis.bandera.specification.predicate;

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Bandera, a Java(TM) analysis and transformation toolkit           *
 * Copyright (C) 2000   Robby (robby@cis.ksu.edu)                    *
 * All rights reserved.                                              *
 *                                                                   *
 * This work was done as a project in the SAnToS Laboratory,         *
 * Department of Computing and Information Sciences, Kansas State    *
 * University, USA (http://www.cis.ksu.edu/santos).                  *
 * It is understood that any modification not identified as such is  *
 * not covered by the preceding statement.                           *
 *                                                                   *
 * This work is free software; you can redistribute it and/or        *
 * modify it under the terms of the GNU Library General Public       *
 * License as published by the Free Software Foundation; either      *
 * version 2 of the License, or (at your option) any later version.  *
 *                                                                   *
 * This work 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 *
 * Library General Public License for more details.                  *
 *                                                                   *
 * You should have received a copy of the GNU Library General Public *
 * License along with this toolkit; if not, write to the             *
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,      *
 * Boston, MA  02111-1307, USA.                                      *
 *                                                                   *
 * Java is a trademark of Sun Microsystems, Inc.                     *
 *                                                                   *
 * To submit a bug report, send a comment, or get the latest news on *
 * this project and other SAnToS projects, please visit the web-site *
 *                http://www.cis.ksu.edu/santos                      *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
import edu.ksu.cis.bandera.jjjc.*;
import edu.ksu.cis.bandera.jjjc.symboltable.*;
import edu.ksu.cis.bandera.jjjc.symboltable.Package;
import java.io.*;
import java.util.*;
import edu.ksu.cis.bandera.jjjc.doc.*;
import edu.ksu.cis.bandera.specification.predicate.parser.*;
import edu.ksu.cis.bandera.specification.predicate.lexer.*;
import edu.ksu.cis.bandera.specification.predicate.node.*;
import edu.ksu.cis.bandera.specification.predicate.ast.*;
import edu.ksu.cis.bandera.specification.predicate.datastructure.*;
import edu.ksu.cis.bandera.annotation.*;
import ca.mcgill.sable.soot.*;
public class PredicateExtractor {
    private static AnnotationManager am;
    private static SootClassManager scm;
/**
 *
 * @param sc SootClass
 * @param sm SootMethod
 * @param tags java.util.Vector
 */
public static void extract(SootClass sc, SootMethod sm, Vector tags) {
    scm = CompilationManager.getSootClassManager();
    am = CompilationManager.getAnnotationManager();
    for (Iterator i = tags.iterator(); i.hasNext();) {
        String tag = (String) i.next();
        if ("@observable".equals(new StringTokenizer(tag).nextToken())) {
            try {
                process(parse(tag.substring(12)), sc, sm);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}
/**
 * 
 * @param args java.lang.String[]
 */
public static void main(String[] args) throws Exception {
    String s = "predset1\n"
                        + "// hi\n"
                        + "\n"
                        + "RETURN a: (test..test.test.test..test.i > 0)\n"
                        + "// this does this...\n";
    try {
        System.out.println(new Parser(new Lexer(new PushbackReader(new StringReader(s)))).parse());
    } catch (Exception e) {
        e.printStackTrace();
    }
}
/**
 * 
 * @return edu.ksu.cis.bandera.bpdl.node.Node
 * @param text java.lang.String
 */
private static Node parse(String text) throws Exception {
    Simplifier.reset();
    Node node = Simplifier.simplify(new Parser(new Lexer(new PushbackReader(new StringReader(text)))).parse());
    if (Simplifier.getExceptions().size() > 0) {
        for (Enumeration e = Simplifier.getExceptions().elements(); e.hasMoreElements();) {
            System.out.println(e.nextElement());
        }
    }// else {
    //  System.out.println(node.toString());
    //}
    return node;
}
/**
 *
 * @param node edu.ksu.cis.bandera.bpdl.node.Node
 * @param sc ca.mcgill.sable.soot.SootClass
 * @param sm ca.mcgill.sable.soot.SootMethod
 */
private static void process(Node node, SootClass sc, SootMethod sm) {
    ClassOrInterfaceType classOrInterfaceType = null;
    SymbolTable symbolTable = null;
    try {
        classOrInterfaceType = Package.getClassOrInterfaceType(new Name(sc.getName()));
        symbolTable = classOrInterfaceType.getSymbolTable();
    } catch (Exception e) {
    }
    TypeChecker typeChecker;
    if (sm == null) {
        typeChecker = new TypeChecker(node, symbolTable, classOrInterfaceType, null);
    } else {
        typeChecker = new TypeChecker(node, symbolTable, classOrInterfaceType, am.getAnnotation(sc, sm));
    }
    typeChecker.check();
}
}

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