Package serp.bytecode

Examples of serp.bytecode.Instruction

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     */
    private void replaceAndValidateFieldAccess() throws NoSuchMethodException {
        // create template putfield/getfield instructions to search for
        Code template = (Code) AccessController.doPrivileged(
            J2DoPrivHelper.newCodeAction());
        Instruction put = template.putfield();
        Instruction get = template.getfield();
        Instruction stat = template.invokestatic();

        // look through all methods; this is done before any methods are added
        // so we don't need to worry about excluding synthetic methods.
        BCMethod[] methods = _managedType.getDeclaredMethods();
        Code code;
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        int idx = code.getNextLocalsIndex();
        code.istore().setLocal(idx);
        JumpInstruction testins = code.go2();

        // <method> (fields[i]);
        Instruction bodyins = loadManagedInstance(code, false);
        if (copy)
            code.aload().setLocal(inst);
        code.aload().setParam(fieldNumbers);
        code.iload().setLocal(idx);
        code.iaload();
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            code.aload().setLocal(oid);
        JumpInstruction go2 = code.go2();

        // if (val == null)
        //   val = <default>;
        Instruction def;
        switch (pkcode) {
            case JavaTypes.BOOLEAN:
                def = code.constant().setValue(false);
                break;
            case JavaTypes.BYTE:
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    /**
     * Helper method to add the code necessary to throw the given
     * exception type, sans message.
     */
    private Instruction throwException(Code code, Class type) {
        Instruction ins = code.anew().setType(type);
        code.dup();
        code.invokespecial().setMethod(type, "<init>", void.class, null);
        code.athrow();
        return ins;
    }
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            code.invokevirtual().setMethod(ObjectOutputStream.class,
                "defaultWriteObject", void.class, null);
            code.vreturn();
        }

        Instruction tmplate = ((Code) AccessController.doPrivileged(
            J2DoPrivHelper.newCodeAction())).vreturn();
        JumpInstruction toret;
        Instruction ret;
        code.beforeFirst();
        while (code.searchForward(tmplate)) {
            ret = code.previous();
            // if (clear) pcSetDetachedState (null);
            code.iload().setLocal(clear);
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        // if (pcGetDetachedState () != null
        //     && pcGetDetachedState != DESERIALIZED)
        //     return Boolean.TRUE;
        Boolean state = _meta.usesDetachedState();
        JumpInstruction notdeser = null;
        Instruction target;
        if (state != Boolean.FALSE) {
            ifins.setTarget(loadManagedInstance(code, false));
            code.invokevirtual().setMethod(PRE + "GetDetachedState",
                Object.class, null);
            ifins = code.ifnull();
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            if (code == null)
                return;
        }

        // create template super.clone () instruction to match against
        Instruction template = ((Code) AccessController.doPrivileged(
            J2DoPrivHelper.newCodeAction())).invokespecial()
            .setMethod(superName, "clone", Object.class.getName(), null);

        // find calls to the template instruction; on match
        // clone will be on stack
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            code.aload().setLocal(oid);
        JumpInstruction go2 = code.go2();

        // if (val == null)
        //   val = <default>;
        Instruction def;
        switch (pkcode) {
            case JavaTypes.BOOLEAN:
                def = code.constant().setValue(false);
                break;
            case JavaTypes.BYTE:
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    /**
     * Helper method to add the code necessary to throw the given
     * exception type, sans message.
     */
    private Instruction throwException(Code code, Class type) {
        Instruction ins = code.anew().setType(type);
        code.dup();
        code.invokespecial().setMethod(type, "<init>", void.class, null);
        code.athrow();
        return ins;
    }
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            code.invokevirtual().setMethod(ObjectOutputStream.class,
                "defaultWriteObject", void.class, null);
            code.vreturn();
        }

        Instruction tmplate = (AccessController.doPrivileged(
            J2DoPrivHelper.newCodeAction())).vreturn();
        JumpInstruction toret;
        Instruction ret;
        code.beforeFirst();
        while (code.searchForward(tmplate)) {
            ret = code.previous();
            // if (clear) pcSetDetachedState (null);
            code.iload().setLocal(clear);
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Related Classes of serp.bytecode.Instruction

  • org.apache.openjpa.datacache.DataCachePCDataGenerator
  • org.apache.openjpa.enhance.DynamicStorageGenerator
  • org.apache.openjpa.enhance.PCDataGenerator
  • org.apache.openjpa.enhance.PCEnhancer
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