Package serp.bytecode

Examples of serp.bytecode.Code.dup()

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        m = bc.declareMethod("copy", Object.class, new Class[] {Object.class});
        m.makePublic();
        code = m.getCode(true);

        code.anew().setType(type);
        code.dup();
        if (params.length == 1) {
            if (params[0] == long.class) {
                code.aload().setParam(0);
                code.checkcast().setType(Date.class);
                code.invokevirtual().setMethod(Date.class, "getTime",
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                code.checkcast().setType(params[0]);
            }
        }
        code.invokespecial().setMethod(type, "<init>", void.class, params);
        if (params.length == 0) {
            code.dup();
            code.aload().setParam(0);
            code.checkcast().setType(Date.class);
            code.invokevirtual().setMethod(Date.class, "getTime", long.class,
                null);
            code.invokevirtual().setMethod(type, "setTime", void.class,
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            code.invokevirtual().setMethod(type, "setTime", void.class,
                new Class[] { long.class });
        }
        if ((params.length == 0 || params[0] == long.class)
            && Timestamp.class.isAssignableFrom(type)) {
            code.dup();
            code.aload().setParam(0);
            code.checkcast().setType(Timestamp.class);
            code.invokevirtual().setMethod(Timestamp.class, "getNanos",
                int.class, null);
            code.invokevirtual().setMethod(type, "setNanos", void.class,
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        // new instance factory
        m = bc.declareMethod("newInstance", ProxyDate.class, null);
        m.makePublic();
        code = m.getCode(true);
        code.anew().setType(bc);
        code.dup();
        code.invokespecial().setMethod("<init>", void.class, null);
        code.areturn();
        code.calculateMaxStack();
        code.calculateMaxLocals();
    }
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        // find calls to the template instruction; on match
        // clone will be on stack
        code.beforeFirst();
        if (code.searchForward(template)) {
            // ((<type>) clone).pcStateManager = null;
            code.dup();
            code.checkcast().setType(_pc);
            code.constant().setNull();
            code.putfield().setField(SM, SMTYPE);

            // if modified, increase stack
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        m = bc.declareMethod("copy", Object.class, new Class[] {Object.class});
        m.makePublic();
        code = m.getCode(true);

        code.anew().setType(type);
        code.dup();
        if (params.length == 1) {
            code.aload().setParam(0);
            if (params[0] == Comparator.class) {
                code.checkcast().setType(SortedSet.class);
                code.invokeinterface().setMethod(SortedSet.class, "comparator",
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            } else
                code.checkcast().setType(params[0]);
        }
        code.invokespecial().setMethod(type, "<init>", void.class, params);
        if (params.length == 0 || params[0] == Comparator.class) {
            code.dup();
            code.aload().setParam(0);
            code.checkcast().setType(Collection.class);
            code.invokevirtual().setMethod(type, "addAll", boolean.class,
                new Class[] { Collection.class });
            code.pop();
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            new Class[] { Class.class, Comparator.class, boolean.class, boolean.class });
        m.makePublic();
        code = m.getCode(true);

        code.anew().setType(bc);
        code.dup();
        cons = findComparatorConstructor(type);
        params = (cons == null) ? new Class[0] : cons.getParameterTypes();
        if (params.length == 1)
            code.aload().setParam(1);
        code.invokespecial().setMethod("<init>", void.class, params);
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        // create change tracker and set it
        code.iload().setParam(2);
        JumpInstruction ifins = code.ifeq();
        code.aload().setLocal(ret);
        code.anew().setType(CollectionChangeTrackerImpl.class);
        code.dup();
        code.aload().setLocal(ret);
        code.constant().setValue(allowsDuplicates(type));
        code.constant().setValue(isOrdered(type));
        code.aload().setParam(3);
        code.invokespecial().setMethod(CollectionChangeTrackerImpl.class,
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                        }
                    }
                   
                    // found a matching constructor.  parm array is constructor parm order
                    code.anew().setType(oidType);
                    code.dup();
                    // build the parm list in order
                    Class<?>[] clsArgs = new Class<?>[parmOrder.length];
                    for (int i = 0; i < clsArgs.length; i++) {
                        int parmIndex = parmOrder[i];
                        clsArgs[i] = fmds[parmIndex].getObjectIdFieldType();
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