Package serp.bytecode

Examples of serp.bytecode.Code.dup()

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                code.getfield().setField(SM, SMTYPE);
                JumpInstruction ifins = code.ifnonnull();
                code.vreturn();
                // sm.getPCPrimaryKey(oid, i + pcInheritedFieldCount);
                ifins.setTarget(loadManagedInstance(code, false));
                code.dup(); // leave orig on stack to set value into
                code.getfield().setField(SM, SMTYPE);
                code.aload().setLocal(id);
                code.constant().setValue(i);
                code.getstatic().setField(INHERIT, int.class);
                code.iadd();
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        // redefining, hook into PCHelper to do the dirty check
        if (isDirtyCheckMethod && !getRedefine()) {
            // RedefinitionHelper.dirtyCheck(sm);
            ifins.setTarget(loadManagedInstance(code, false));
            code.getfield().setField(SM, SMTYPE);
            code.dup(); // for the return statement below
            code.invokestatic().setMethod(RedefinitionHelper.class,
                "dirtyCheck", void.class, new Class[] { SMTYPE });
        } else {
            ifins.setTarget(loadManagedInstance(code, false));
            code.getfield().setField(SM, SMTYPE);
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        else {
            // return <versionField>;
            Class wrapper = toPrimitiveWrapper(versionField);
            if (wrapper != versionField.getDeclaredType()) {
                code.anew().setType(wrapper);
                code.dup();
            }
            loadManagedInstance(code, false);
            addGetManagedValueCode(code, versionField);
            if (wrapper != versionField.getDeclaredType())
                code.invokespecial().setMethod(wrapper, "<init>", void.class,
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            return;
        }

        // XXX pc = new XXX ();
        code.anew().setType(_pc);
        code.dup();
        code.invokespecial().setMethod("<init>", void.class, null);
        int inst = code.getNextLocalsIndex();
        code.astore().setLocal(inst);

        // if (clear)
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                } else
                    loadManagedInstance(code, false);

                if (unwrapped != type) {
                    code.anew().setType(type);
                    code.dup();
                }
                code.aload().setLocal(id);
                if (_meta.isOpenJPAIdentity()) {
                    if (oidType == ObjectId.class) {
                        code.invokevirtual().setMethod(oidType, "getId",
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        if (obj && usesClsString == null) {
            // throw new IllegalArgumentException (...);
            String msg = _loc.get("str-cons", oidType,
                _meta.getDescribedType()).getMessage();
            code.anew().setType(IllegalArgumentException.class);
            code.dup();
            code.constant().setValue(msg);
            code.invokespecial().setMethod(IllegalArgumentException.class,
                "<init>", void.class, new Class[]{ String.class });
            code.athrow();
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        }

        if (!_meta.isOpenJPAIdentity() && _meta.isObjectIdTypeShared()) {
            // new ObjectId (cls, oid)
            code.anew().setType(ObjectId.class);
            code.dup();
            if(_meta.isEmbeddedOnly() || _meta.hasAbstractPKField() == true) {
                code.aload().setThis();
                code.invokevirtual().setMethod(PRE + "GetIDOwningClass",
                    Class.class, null);
            } else {
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            }
        }

        // new <oid class> ();
        code.anew().setType(oidType);
        code.dup();
        if (_meta.isOpenJPAIdentity() || (obj && usesClsString == Boolean.TRUE)) {
            if ((_meta.isEmbeddedOnly()
                && !(_meta.isEmbeddable() && _meta.getIdentityType() == ClassMetaData.ID_APPLICATION))
                || _meta.hasAbstractPKField() == true) {
                code.aload().setThis();
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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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