Package org.apache.tapestry5.internal.plastic.asm.tree

Examples of org.apache.tapestry5.internal.plastic.asm.tree.AbstractInsnNode


    @SuppressWarnings("unchecked")
    @Test
    public void validator_with_constraint() throws Exception
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        Messages messages = mockMessages();
        MessageFormatter formatter = mockMessageFormatter();
        Object inputValue = new Object();
        ComponentResources resources = mockComponentResources();
        Messages containerMessages = mockMessages();
        Integer five = 5;
        FormSupport fs = mockFormSupport();

        Map<String, Validator> map = singletonMap("minLength", validator);

        train_getConstraintType(validator, Integer.class);

        train_getFormValidationId(fs, "myform");

        train_coerce(coercer, "5", Integer.class, five);

        train_getComponentResources(field, resources);
        train_getId(resources, "fred");
        train_getContainerMessages(resources, containerMessages);
        train_contains(containerMessages, "myform-fred-minLength-message", false);
        train_contains(containerMessages, "fred-minLength-message", false);

        train_getLocale(resources, Locale.FRENCH);

        train_getValidationMessages(messagesSource, Locale.FRENCH, messages);

        train_getMessageKey(validator, "key");
        train_getMessageFormatter(messages, "key", formatter);

        train_isRequired(validator, false);
        train_getValueType(validator, Object.class);
        validator.validate(field, five, formatter, inputValue);

        replay();

        FieldValidatorSource source = new FieldValidatorSourceImpl(messagesSource, coercer, fs, map, null);
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                {
                    setupRequestFromLink(link);
                    continue;
                }

                Document result = response.getRenderedDocument();

                if (result == null)
                    throw new RuntimeException(String.format("Render of page '%s' did not result in a Document.",
                            pageName));
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    {
        List<OptionModel> options = CollectionFactory.newList();

        for (Locale l : supportedLocales)
        {
            options.add(new OptionModelImpl(l.getDisplayName(l), l));
        }

        return new SelectModelImpl(null, options);
    }
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        for (Locale l : supportedLocales)
        {
            options.add(new OptionModelImpl(l.getDisplayName(l), l));
        }

        return new SelectModelImpl(null, options);
    }
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     *            part of this subroutine or any previously computed subroutine.
     */
    private void markSubroutineWalkDFS(final BitSet sub, int index,
            final BitSet anyvisited) {
        while (true) {
            AbstractInsnNode node = instructions.get(index);

            // don't visit a node twice
            if (sub.get(index)) {
                return;
            }
            sub.set(index);

            // check for those nodes already visited by another subroutine
            if (anyvisited.get(index)) {
                dualCitizens.set(index);
                if (LOGGING) {
                    log("Instruction #" + index + " is dual citizen.");
                }
            }
            anyvisited.set(index);

            if (node.getType() == AbstractInsnNode.JUMP_INSN
                    && node.getOpcode() != JSR) {
                // we do not follow recursively called subroutines here; but any
                // other sort of branch we do follow
                JumpInsnNode jnode = (JumpInsnNode) node;
                int destidx = instructions.indexOf(jnode.label);
                markSubroutineWalkDFS(sub, destidx, anyvisited);
            }
            if (node.getType() == AbstractInsnNode.TABLESWITCH_INSN) {
                TableSwitchInsnNode tsnode = (TableSwitchInsnNode) node;
                int destidx = instructions.indexOf(tsnode.dflt);
                markSubroutineWalkDFS(sub, destidx, anyvisited);
                for (int i = tsnode.labels.size() - 1; i >= 0; --i) {
                    LabelNode l = tsnode.labels.get(i);
                    destidx = instructions.indexOf(l);
                    markSubroutineWalkDFS(sub, destidx, anyvisited);
                }
            }
            if (node.getType() == AbstractInsnNode.LOOKUPSWITCH_INSN) {
                LookupSwitchInsnNode lsnode = (LookupSwitchInsnNode) node;
                int destidx = instructions.indexOf(lsnode.dflt);
                markSubroutineWalkDFS(sub, destidx, anyvisited);
                for (int i = lsnode.labels.size() - 1; i >= 0; --i) {
                    LabelNode l = lsnode.labels.get(i);
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        }

        // Emit the relevant instructions for this instantiation, translating
        // labels and jump targets as we go:
        for (int i = 0, c = instructions.size(); i < c; i++) {
            AbstractInsnNode insn = instructions.get(i);
            Instantiation owner = instant.findOwner(i);

            // Always remap labels:
            if (insn.getType() == AbstractInsnNode.LABEL) {
                // Translate labels into their renamed equivalents.
                // Avoid adding the same label more than once. Note
                // that because we own this instruction the gotoTable
                // and the rangeTable will always agree.
                LabelNode ilbl = (LabelNode) insn;
                LabelNode remap = instant.rangeLabel(ilbl);
                if (LOGGING) {
                    // TODO use of default toString().
                    log("Translating lbl #" + i + ':' + ilbl + " to " + remap);
                }
                if (remap != duplbl) {
                    newInstructions.add(remap);
                    duplbl = remap;
                }
                continue;
            }

            // We don't want to emit instructions that were already
            // emitted by a subroutine higher on the stack. Note that
            // it is still possible for a given instruction to be
            // emitted twice because it may belong to two subroutines
            // that do not invoke each other.
            if (owner != instant) {
                continue;
            }

            if (LOGGING) {
                log("Emitting inst #" + i);
            }

            if (insn.getOpcode() == RET) {
                // Translate RET instruction(s) to a jump to the return label
                // for the appropriate instantiation. The problem is that the
                // subroutine may "fall through" to the ret of a parent
                // subroutine; therefore, to find the appropriate ret label we
                // find the lowest subroutine on the stack that claims to own
                // this instruction. See the class javadoc comment for an
                // explanation on why this technique is safe (note: it is only
                // safe if the input is verifiable).
                LabelNode retlabel = null;
                for (Instantiation p = instant; p != null; p = p.previous) {
                    if (p.subroutine.get(i)) {
                        retlabel = p.returnLabel;
                    }
                }
                if (retlabel == null) {
                    // This is only possible if the mainSubroutine owns a RET
                    // instruction, which should never happen for verifiable
                    // code.
                    throw new RuntimeException("Instruction #" + i
                            + " is a RET not owned by any subroutine");
                }
                newInstructions.add(new JumpInsnNode(GOTO, retlabel));
            } else if (insn.getOpcode() == JSR) {
                LabelNode lbl = ((JumpInsnNode) insn).label;
                BitSet sub = subroutineHeads.get(lbl);
                Instantiation newinst = new Instantiation(instant, sub);
                LabelNode startlbl = newinst.gotoLabel(lbl);

                if (LOGGING) {
                    log(" Creating instantiation of subr " + sub);
                }

                // Rather than JSRing, we will jump to the inline version and
                // push NULL for what was once the return value. This hack
                // allows us to avoid doing any sort of data flow analysis to
                // figure out which instructions manipulate the old return value
                // pointer which is now known to be unneeded.
                newInstructions.add(new InsnNode(ACONST_NULL));
                newInstructions.add(new JumpInsnNode(GOTO, startlbl));
                newInstructions.add(newinst.returnLabel);

                // Insert this new instantiation into the queue to be emitted
                // later.
                worklist.add(newinst);
            } else {
                newInstructions.add(insn.clone(instant));
            }
        }

        // Emit try/catch blocks that are relevant to this method.
        for (Iterator<TryCatchBlockNode> it = tryCatchBlocks.iterator(); it
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            // this is fairly common as we are often ignoring large chunks of
            // instructions, so what were previously distinct labels become
            // duplicates.
            LabelNode duplbl = null;
            for (int i = 0, c = instructions.size(); i < c; i++) {
                AbstractInsnNode insn = instructions.get(i);

                if (insn.getType() == AbstractInsnNode.LABEL) {
                    LabelNode ilbl = (LabelNode) insn;

                    if (duplbl == null) {
                        // if we already have a label pointing at this spot,
                        // don't recreate it.
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            int insn = queue[--top];
            Frame<V> f = frames[insn];
            Subroutine subroutine = subroutines[insn];
            queued[insn] = false;

            AbstractInsnNode insnNode = null;
            try {
                insnNode = m.instructions.get(insn);
                int insnOpcode = insnNode.getOpcode();
                int insnType = insnNode.getType();

                if (insnType == AbstractInsnNode.LABEL
                        || insnType == AbstractInsnNode.LINE
                        || insnType == AbstractInsnNode.FRAME) {
                    merge(insn + 1, f, subroutine);
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            }
            if (subroutines[insn] != null) {
                return;
            }
            subroutines[insn] = sub.copy();
            AbstractInsnNode node = insns.get(insn);

            // calls findSubroutine recursively on normal successors
            if (node instanceof JumpInsnNode) {
                if (node.getOpcode() == JSR) {
                    // do not follow a JSR, it leads to another subroutine!
                    calls.add(node);
                } else {
                    JumpInsnNode jnode = (JumpInsnNode) node;
                    findSubroutine(insns.indexOf(jnode.label), sub, calls);
                }
            } else if (node instanceof TableSwitchInsnNode) {
                TableSwitchInsnNode tsnode = (TableSwitchInsnNode) node;
                findSubroutine(insns.indexOf(tsnode.dflt), sub, calls);
                for (int i = tsnode.labels.size() - 1; i >= 0; --i) {
                    LabelNode l = tsnode.labels.get(i);
                    findSubroutine(insns.indexOf(l), sub, calls);
                }
            } else if (node instanceof LookupSwitchInsnNode) {
                LookupSwitchInsnNode lsnode = (LookupSwitchInsnNode) node;
                findSubroutine(insns.indexOf(lsnode.dflt), sub, calls);
                for (int i = lsnode.labels.size() - 1; i >= 0; --i) {
                    LabelNode l = lsnode.labels.get(i);
                    findSubroutine(insns.indexOf(l), sub, calls);
                }
            }

            // calls findSubroutine recursively on exception handler successors
            List<TryCatchBlockNode> insnHandlers = handlers[insn];
            if (insnHandlers != null) {
                for (int i = 0; i < insnHandlers.size(); ++i) {
                    TryCatchBlockNode tcb = insnHandlers.get(i);
                    findSubroutine(insns.indexOf(tcb.handler), sub, calls);
                }
            }

            // if insn does not falls through to the next instruction, return.
            switch (node.getOpcode()) {
            case GOTO:
            case RET:
            case TABLESWITCH:
            case LOOKUPSWITCH:
            case IRETURN:
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        ListIterator li = ins.iterator();

        // Look for the ALOAD 0 (i.e., push this on the stack)
        while (li.hasNext())
        {
            AbstractInsnNode node = (AbstractInsnNode) li.next();

            if (node.getOpcode() == ALOAD)
            {
                VarInsnNode varNode = (VarInsnNode) node;

                assert varNode.var == 0;

                // Remove the ALOAD
                li.remove();
                break;
            }
        }

        // Look for the call to the super-class, an INVOKESPECIAL
        while (li.hasNext())
        {
            AbstractInsnNode node = (AbstractInsnNode) li.next();

            if (node.getOpcode() == INVOKESPECIAL)
            {
                MethodInsnNode mnode = (MethodInsnNode) node;

                assert mnode.owner.equals(classNode.superName);
                assert mnode.name.equals(CONSTRUCTOR_NAME);
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