Package org.ow2.asm

Examples of org.ow2.asm.ClassWriter.toByteArray()

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    @Override
    public void test() throws Exception {
        ClassReader cr = new ClassReader(is);
        ClassWriter cw = new ClassWriter(0);
        cr.accept(new CheckClassAdapter(cw), 0);
        assertEquals(cr, new ClassReader(cw.toByteArray()));
    }
}
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        try {
            ClassReader cr = new ClassReader(is);
            ClassWriter cw = new ClassWriter(0);
            ClassVisitor cv = new TraceFieldClassAdapter(cw);
            cr.accept(cv, 0);
            b = cw.toByteArray();
        } catch (Exception e) {
            throw new ClassNotFoundException(name, e);
        }

        // optional: stores the adapted class on disk
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        mv.visitInsn(IRETURN);
        // max stack and max locals automatically computed
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        return cw.toByteArray();
    }

    /*
     * Compile this expression. This method must append to the given code writer
     * the byte code that evaluates and pushes on the stack the value of this
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            @Override
            public Class<?> loadClass(final String name)
                    throws ClassNotFoundException
            {
                if (name.equals(n)) {
                    byte[] b = cw.toByteArray();
                    return defineClass(name, b, 0, b.length);
                }
                return super.loadClass(name);
            }
        }.loadClass(n);
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        // variables
        mw.visitMaxs(2, 2);
        mw.visitEnd();

        // gets the bytecode of the Example class, and loads it dynamically
        byte[] code = cw.toByteArray();

        FileOutputStream fos = new FileOutputStream("Example.class");
        fos.write(code);
        fos.close();
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        mg.returnValue();
        mg.endMethod();

        cw.visitEnd();

        code = cw.toByteArray();
        loader = new Helloworld();
        exampleClass = loader.defineClass("Example", code, 0, code.length);

        // uses the dynamically generated class to print 'Helloworld'
        exampleClass.getMethods()[0].invoke(null, new Object[] { null });
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        }

        r.close();

        FileOutputStream os = new FileOutputStream(className + ".class");
        os.write(cw.toByteArray());
        os.flush();
        os.close();
    }

}
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                    ClassWriter.COMPUTE_MAXS);
            return new ASMContentHandler(cw) {
                @Override
                public void endDocument() throws SAXException {
                    try {
                        os.write(cw.toByteArray());
                    } catch(IOException e) {
                        throw new SAXException(e);
                    }
                }
            };
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            cr.accept(co, ClassReader.SKIP_DEBUG);

            Set<Constant> constants = new TreeSet<Constant>(new ConstantComparator());
            constants.addAll(cp.values());

            cr = new ClassReader(cw.toByteArray());
            cw = new ClassWriter(0);
            Iterator<Constant> i = constants.iterator();
            while (i.hasNext()) {
                Constant c = i.next();
                c.write(cw);
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                if (!g.getParentFile().exists() && !g.getParentFile().mkdirs()) {
                    throw new IOException("Cannot create directory " + g.getParentFile());
                }
                OutputStream os = new FileOutputStream(g);
                try {
                    os.write(cw.toByteArray());
                } finally {
                    os.close();
                }
            }
        }
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