Package org.codehaus.jackson.org.objectweb.asm

Examples of org.codehaus.jackson.org.objectweb.asm.ClassWriter.visitMethod()

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        // muchos important: level at least 1.5 to get generics!!!
        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, generatedClass, null, superClass, null);
        cw.visitSource(srcName + ".java", null);

        // add default (no-arg) constructor:
        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, superClass, "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0); // don't care (real values: 1,1)
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            // (b) copy-constructor which takes StdValueInstantiator instance, passes to superclass
            final String optimizedValueInstDesc = Type.getDescriptor(OptimizedValueInstantiator.class);
            final String stdValueInstDesc = Type.getDescriptor(StdValueInstantiator.class);

            // default (no-arg) constructor:
            MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, superClass, "<init>", "()V");
            mv.visitInsn(RETURN);
            mv.visitMaxs(0, 0);
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            mv.visitMethodInsn(INVOKESPECIAL, superClass, "<init>", "()V");
            mv.visitInsn(RETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
            // then single-arg constructor
            mv = cw.visitMethod(ACC_PUBLIC, "<init>", "("+stdValueInstDesc+")V", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKESPECIAL, superClass, "<init>", "("+stdValueInstDesc+")V");
            mv.visitInsn(RETURN);
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            mv.visitMaxs(0, 0);
            mv.visitEnd();

            // and then non-static factory method to use second constructor (implements base-class method)
            // protected abstract OptimizedValueInstantiator with(StdValueInstantiator src);
            mv = cw.visitMethod(ACC_PUBLIC, "with", "("
                    +stdValueInstDesc+")"+optimizedValueInstDesc, null, null);
            mv.visitCode();
            mv.visitTypeInsn(NEW, generatedClass);
            mv.visitInsn(DUP);
            mv.visitVarInsn(ALOAD, 1);
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            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();

            // And then override: public Object createUsingDefault()
            mv = cw.visitMethod(ACC_PUBLIC, "createUsingDefault", "()Ljava/lang/Object;", null, null);
            mv.visitCode();
           
            if (ctor != null) {
                addCreator(mv, ctor);
            } else {
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