Package serp.bytecode

Examples of serp.bytecode.Code.dup()

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        // pcFieldFlags = new byte[] { <flag1>, <flag2>, ... };
        code.constant().setValue(fmds.length);
        code.newarray().setType(byte.class);
        for (int i = 0; i < fmds.length; i++) {
            code.dup();
            code.constant().setValue(i);
            code.constant().setValue(getFieldFlag(fmds[i]));
            code.bastore();
        }
        code.putstatic().setField(PRE + "FieldFlags", byte[].class);
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        if (_pc.isAbstract())
            code.constant().setNull();
        else {
            code.anew().setType(_pc);
            code.dup();
            code.invokespecial().setMethod("<init>", void.class, null);
        }

        code.invokestatic().setMethod(HELPERTYPE, "register", void.class,
            new Class[]{ Class.class, String[].class, Class[].class,
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        method.getExceptions(true).addException(ObjectStreamException.class);
        Code code = method.getCode(true);

        // Object o = new <managed-type>()
        code.anew().setType(_managedType); // for return
        code.dup(); // for post-<init> work
        code.dup(); // for <init>
        code.invokespecial().setMethod(_managedType.getType(), "<init>",
            void.class, null);

        // copy all the fields.
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        Code code = method.getCode(true);

        // Object o = new <managed-type>()
        code.anew().setType(_managedType); // for return
        code.dup(); // for post-<init> work
        code.dup(); // for <init>
        code.invokespecial().setMethod(_managedType.getType(), "<init>",
            void.class, null);

        // copy all the fields.
        // ##### limiting to JPA @Transient limitations
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        FieldMetaData[] fmds = _meta.getFields();
        for (int i = 0; i < fmds.length; i++) {
            if (fmds[i].isTransient())
                continue;
            // o.<field> = this.<field> (or reflective analog)
            code.dup(); // for putfield
            code.aload().setThis(); // for getfield
            getfield(code, _managedType, fmds[i].getName());
            putfield(code, _managedType, fmds[i].getName(),
                fmds[i].getDeclaredType());
        }
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            }
        }

        // new <oid class> ();
        code.anew().setType(oidType);
        code.dup();
        if (_meta.isOpenJPAIdentity() || (obj && usesClsString == Boolean.TRUE)) {
            if ((_meta.isEmbeddedOnly() && ! (_meta.getIdentityType() == ClassMetaData.ID_APPLICATION))
                || _meta.hasAbstractPKField() == true ) {
                code.aload().setThis();
                code.invokevirtual().setMethod(PRE + "GetIDOwningClass", Class.class, null);
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        // pcFieldNames = new String[] { "<name1>", "<name2>", ... };
        FieldMetaData[] fmds = _meta.getDeclaredFields();
        code.constant().setValue(fmds.length);
        code.anewarray().setType(String.class);
        for (int i = 0; i < fmds.length; i++) {
            code.dup();
            code.constant().setValue(i);
            code.constant().setValue(fmds[i].getName());
            code.aastore();
        }
        code.putstatic().setField(PRE + "FieldNames", String[].class);
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        // pcFieldTypes = new Class[] { <type1>.class, <type2>.class, ... };
        code.constant().setValue(fmds.length);
        code.anewarray().setType(Class.class);
        for (int i = 0; i < fmds.length; i++) {
            code.dup();
            code.constant().setValue(i);
            code.classconstant().setClass(fmds[i].getDeclaredType());
            code.aastore();
        }
        code.putstatic().setField(PRE + "FieldTypes", Class[].class);
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        // pcFieldFlags = new byte[] { <flag1>, <flag2>, ... };
        code.constant().setValue(fmds.length);
        code.newarray().setType(byte.class);
        for (int i = 0; i < fmds.length; i++) {
            code.dup();
            code.constant().setValue(i);
            code.constant().setValue(getFieldFlag(fmds[i]));
            code.bastore();
        }
        code.putstatic().setField(PRE + "FieldFlags", byte[].class);
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        if (_pc.isAbstract())
            code.constant().setNull();
        else {
            code.anew().setType(_pc);
            code.dup();
            code.invokespecial().setMethod("<init>", void.class, null);
        }

        code.invokestatic().setMethod(HELPERTYPE, "register", void.class,
            new Class[]{ Class.class, String[].class, Class[].class,
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