Examples with ConstantMethodInfo com.jopdesign.common.type.ConstantMethodInfo used on opensource projects

Example 1 with ConstantMethodInfo

use of com.jopdesign.common.type.ConstantMethodInfo in project jop by jop-devel.

the class ClinitOrder method findDependencies.

private Set<ClassInfo> findDependencies(MethodInfo method, boolean inRec) {
    //		System.out.println("find dep. in "+cli.clazz.getClassName()+":"+mi.getMethod().getName());
    Set<ClassInfo> depends = new HashSet<ClassInfo>();
    if (method.isNative() || method.isAbstract()) {
        // subclasses???? :-(
        return depends;
    }
    ClassInfo classInfo = method.getClassInfo();
    ConstantPoolGen cpoolgen = method.getConstantPoolGen();
    InstructionList il = method.getCode().getInstructionList();
    InstructionFinder f = new InstructionFinder(il);
    // TODO can we encounter an empty instruction list?
    //if(il.getStart() == null) {
    //    return depends;
    //}
    // find instructions that access the constant pool
    // collect all indices to constants in ClassInfo
    String cpInstr = "CPInstruction";
    for (Iterator it = f.search(cpInstr); it.hasNext(); ) {
        InstructionHandle[] match = (InstructionHandle[]) it.next();
        InstructionHandle first = match[0];
        CPInstruction ii = (CPInstruction) first.getInstruction();
        int idx = ii.getIndex();
        Constant co = cpoolgen.getConstant(idx);
        ClassRef classRef = null;
        Set addDepends = null;
        ClassInfo clinfo;
        MethodInfo minfo;
        switch(co.getTag()) {
            case Constants.CONSTANT_Class:
                classRef = classInfo.getConstantInfo(co).getClassRef();
                clinfo = classRef.getClassInfo();
                if (clinfo != null) {
                    minfo = clinfo.getMethodInfo("<init>()V");
                    if (minfo != null) {
                        addDepends = findDependencies(minfo, true);
                    }
                }
                break;
            case Constants.CONSTANT_Fieldref:
            case Constants.CONSTANT_InterfaceMethodref:
                classRef = classInfo.getConstantInfo(co).getClassRef();
                break;
            case Constants.CONSTANT_Methodref:
                ConstantMethodInfo mref = (ConstantMethodInfo) classInfo.getConstantInfo(co);
                classRef = mref.getClassRef();
                minfo = mref.getMethodRef().getMethodInfo();
                if (minfo != null) {
                    addDepends = findDependencies(minfo, true);
                }
                break;
        }
        if (classRef != null) {
            ClassInfo clinf = classRef.getClassInfo();
            if (clinf != null) {
                if (clinf.getMethodInfo(clinitSig) != null) {
                    // don't add myself as dependency
                    if (!clinf.equals(method.getClassInfo())) {
                        depends.add(clinf);
                    }
                }
            }
        }
        if (addDepends != null) {
            for (Object addDepend : addDepends) {
                ClassInfo addCli = (ClassInfo) addDepend;
                if (addCli.equals(method.getClassInfo())) {
                    throw new JavaClassFormatError("cyclic indirect <clinit> dependency");
                }
                depends.add(addCli);
            }
        }
    }
    return depends;
}

Example 2 with ConstantMethodInfo

use of com.jopdesign.common.type.ConstantMethodInfo in project jop by jop-devel.

the class RelinkInvokesuper method relinkInvokeSuper.

private void relinkInvokeSuper(InvokeSite is) {
    // this already resolves to the correct method..
    MethodRef invokee = is.getInvokeeRef();
    MethodInfo target = invokee.getMethodInfo();
    if (target == null) {
        // .. or not (class or method excluded or unknown)
        logger.warn("Cannot try to relink invokespecial to unknown super method " + invokee);
        return;
    }
    // now simply relink instruction (no need to check if it changes)
    int index = is.getInvoker().getClassInfo().addConstantInfo(new ConstantMethodInfo(invokee));
    if (!(is.getInvokeInstruction() instanceof INVOKESPECIAL)) {
        throw new JavaClassFormatError("Invokesuper is not an invokespecial instruction!");
    }
    is.getInvokeInstruction().setIndex(index);
}