Package org.ow2.asm

Examples of org.ow2.asm.ClassVisitor


    public static void main(final String args[]) throws Exception {
        // loads the original class and adapts it
        ClassReader cr = new ClassReader("CommentAttribute");
        ClassWriter cw = new ClassWriter(0);
        ClassVisitor cv = new AddCommentClassAdapter(cw);
        cr.accept(cv, new Attribute[] { new CommentAttribute("") }, 0);
        byte[] b = cw.toByteArray();

        // stores the adapted class on disk
        FileOutputStream fos = new FileOutputStream("CommentAttribute.class.new");
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    private long computeSerialVersionUID(final String className)
            throws IOException
    {
        final long[] svuid = new long[1];
        ClassVisitor cv = new SerialVersionUIDAdder(new EmptyVisitor()) {
            @Override
            protected long computeSVUID() throws IOException {
                svuid[0] = super.computeSVUID();
                return svuid[0];
            }
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            ClassReader cr = new ClassReader(is);
            byte[] b = transformClass(cr.b);
            StringWriter sw1 = new StringWriter();
            StringWriter sw2 = new StringWriter();
            sw2.write(ve.toString() + "\n");
            ClassVisitor cv1 = new TraceClassVisitor(new PrintWriter(sw1));
            ClassVisitor cv2 = new TraceClassVisitor(new PrintWriter(sw2));
            cr.accept(cv1, 0);
            new ClassReader(b).accept(cv2, 0);
            String s1 = sw1.toString();
            String s2 = sw2.toString();
            assertEquals("different data", s1, s2);
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        ClassReader cr = new ClassReader(cw.toByteArray());
        CheckClassAdapter.verify(cr, true, new PrintWriter(System.err));
    }

    public void testIllegalClassAccessFlag() {
        ClassVisitor cv = new CheckClassAdapter(new EmptyVisitor());
        try {
            cv.visit(V1_1, 1 << 20, "C", null, "java/lang/Object", null);
            fail();
        } catch (Exception e) {
        }
    }
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        } catch (Exception e) {
        }
    }

    public void testIllegalSuperClass() {
        ClassVisitor cv = new CheckClassAdapter(new EmptyVisitor());
        try {
            cv.visit(V1_1,
                    ACC_PUBLIC,
                    "java/lang/Object",
                    null,
                    "java/lang/Object",
                    null);
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        } catch (Exception e) {
        }
    }

    public void testIllegalInterfaceSuperClass() {
        ClassVisitor cv = new CheckClassAdapter(new EmptyVisitor());
        try {
            cv.visit(V1_1, ACC_INTERFACE, "I", null, "C", null);
            fail();
        } catch (Exception e) {
        }
    }
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        } catch (Exception e) {
        }
    }

    public void testIllegalClassSignature() {
        ClassVisitor cv = new CheckClassAdapter(new EmptyVisitor());
        try {
            cv.visit(V1_1, ACC_PUBLIC, "C", "LC;I", "java/lang/Object", null);
            fail();
        } catch (Exception e) {
        }
    }
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        } catch (Exception e) {
        }
    }

    public void testIllegalClassAccessFlagSet() {
        ClassVisitor cv = new CheckClassAdapter(new EmptyVisitor());
        try {
            cv.visit(V1_1,
                    ACC_FINAL + ACC_ABSTRACT,
                    "C",
                    null,
                    "java/lang/Object",
                    null);
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        } catch (Exception e) {
        }
    }

    public void testIllegalClassMemberVisitBeforeStart() {
        ClassVisitor cv = new CheckClassAdapter(new EmptyVisitor());
        try {
            cv.visitSource(null, null);
            fail();
        } catch (Exception e) {
        }
    }
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        } catch (Exception e) {
        }
    }

    public void testIllegalClassAttribute() {
        ClassVisitor cv = new CheckClassAdapter(new EmptyVisitor());
        cv.visit(V1_1, ACC_PUBLIC, "C", null, "java/lang/Object", null);
        try {
            cv.visitAttribute(null);
            fail();
        } catch (Exception e) {
        }
    }
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