Package javassist.bytecode

Examples of javassist.bytecode.Bytecode.toCodeAttribute()

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            5);
        Class retType = meth.getReturnType();
        addUnwrapper(code, retType);
        addReturn(code, retType);

        forwarder.setCodeAttribute(code.toCodeAttribute());
        return forwarder;
    }

    private static void setThrows(MethodInfo minfo, ConstPool cp, Method orig) {
        Class[] exceptions = orig.getExceptionTypes();
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        Bytecode code = new Bytecode(cp, 0, 0);
        code.addIconst(size * 2);
        code.addAnewarray("java.lang.reflect.Method");
        code.addPutstatic(classname, HOLDER, HOLDER_TYPE);
        code.addOpcode(Bytecode.RETURN);
        minfo.setCodeAttribute(code.toCodeAttribute());
        cf.addMethod(minfo);
    }

    private static void addSetter(String classname, ClassFile cf, ConstPool cp)
        throws CannotCompileException
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        Bytecode code = new Bytecode(cp, 2, 2);
        code.addAload(0);
        code.addAload(1);
        code.addPutfield(classname, HANDLER, HANDLER_TYPE);
        code.addOpcode(Bytecode.RETURN);
        minfo.setCodeAttribute(code.toCodeAttribute());
        cf.addMethod(minfo);
    }

    private int overrideMethods(ClassFile cf, ConstPool cp, String className,
                                HashMap allMethods)
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        code.addAload(0);
        int s = addLoadParameters(code, cons.getParameterTypes(), 1);
        code.addInvokespecial(superClass.getName(), "<init>", desc);
        code.addOpcode(Opcode.RETURN);
        code.setMaxLocals(s + 1);
        minfo.setCodeAttribute(code.toCodeAttribute());
        return minfo;
    }

    private static MethodInfo makeDelegator(Method meth, String desc,
                ConstPool cp, Class declClass, String delegatorName) {
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        code.addAload(0);
        int s = addLoadParameters(code, meth.getParameterTypes(), 1);
        code.addInvokespecial(declClass.getName(), meth.getName(), desc);
        addReturn(code, meth.getReturnType());
        code.setMaxLocals(++s);
        delegator.setCodeAttribute(code.toCodeAttribute());
        return delegator;
    }

    /**
     * @param delegatorName     null if the original method is abstract.
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                b.add(Bytecode.ALOAD_2);
                b.addInvokespecial(file.getSuperclass(), Constants.ADDED_METHOD_NAME, Constants.ADDED_METHOD_DESCRIPTOR);
                b.add(Bytecode.ARETURN);

            }
            CodeAttribute ca = b.toCodeAttribute();
            m.setCodeAttribute(ca);
            file.addMethod(m);
        } catch (DuplicateMemberException e) {
            // e.printStackTrace();
        }
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            MethodInfo m = new MethodInfo(file.getConstPool(), Constants.ADDED_STATIC_METHOD_NAME, Constants.ADDED_STATIC_METHOD_DESCRIPTOR);
            m.setAccessFlags(AccessFlag.PUBLIC | AccessFlag.STATIC | AccessFlag.SYNTHETIC);
            Bytecode b = new Bytecode(file.getConstPool(), 5, 3);
            b.add(Bytecode.ACONST_NULL);
            b.add(Bytecode.ARETURN);
            CodeAttribute ca = b.toCodeAttribute();
            m.setCodeAttribute(ca);
            file.addMethod(m);

        } catch (DuplicateMemberException e) {
            // e.printStackTrace();
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        try {
            MethodInfo m = new MethodInfo(file.getConstPool(), "<clinit>", "()V");
            m.setAccessFlags(AccessFlag.PUBLIC | AccessFlag.STATIC);
            Bytecode b = new Bytecode(file.getConstPool());
            b.add(Opcode.RETURN);
            m.setCodeAttribute(b.toCodeAttribute());
            file.addMethod(m);
        } catch (DuplicateMemberException e) {
            // e.printStackTrace();
        }
    }
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        Bytecode code = new Bytecode(file.getConstPool());
        // if the class does not have a constructor return
        if (!ManipulationUtils.addBogusConstructorCall(file, code)) {
            return;
        }
        CodeAttribute ca = code.toCodeAttribute();
        ca.setMaxLocals(4);
        ret.setCodeAttribute(ca);
        ret.setAccessFlags(AccessFlag.PUBLIC | AccessFlag.SYNTHETIC);
        try {
            ca.computeMaxStack();
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                    b.add(Bytecode.ILOAD_1);
                    b.add(Bytecode.ALOAD_2);
                    b.addInvokespecial(file.getSuperclass(), Constants.ADDED_METHOD_NAME, Constants.ADDED_METHOD_DESCRIPTOR);
                    b.add(Bytecode.ARETURN);
                }
                virtualCodeAttribute = b.toCodeAttribute();
                virtMethod.setCodeAttribute(virtualCodeAttribute);

                MethodInfo m = new MethodInfo(file.getConstPool(), Constants.ADDED_STATIC_METHOD_NAME, Constants.ADDED_STATIC_METHOD_DESCRIPTOR);
                m.setAccessFlags(AccessFlag.PUBLIC | AccessFlag.STATIC | AccessFlag.SYNTHETIC);
                b = new Bytecode(file.getConstPool(), 0, 3);
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