Package org.objectweb.asm.tree

Examples of org.objectweb.asm.tree.TryCatchBlockNode

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    }

    @SuppressWarnings("unchecked")
    private void splitTryCatch(FrameInfo fi) {
        for (int i = 0; i < mn.tryCatchBlocks.size(); i++) {
            TryCatchBlockNode tcb = (TryCatchBlockNode) mn.tryCatchBlocks.get(i);

            int start = getLabelIdx(tcb.start);
            int end = getLabelIdx(tcb.end);

            if (start <= fi.endInstruction && end >= fi.endInstruction) {
                db.log(LogLevel.DEBUG, "Splitting try-catch in %s, block %d call at instruction %d", mn.name, i, fi.endInstruction);
                //System.out.println("i="+i+" start="+start+" end="+end+" split="+splitIdx+
                //        " start="+mn.instructions.get(start)+" end="+mn.instructions.get(end));

                // need to split try/catch around the suspendable call
                if (start == fi.endInstruction) {
                    tcb.start = fi.createAfterLabel();
                } else {
                    if (end > fi.endInstruction) {
                        TryCatchBlockNode tcb2 = new TryCatchBlockNode(
                                fi.createAfterLabel(),
                                tcb.end, tcb.handler, tcb.type);
                        mn.tryCatchBlocks.add(i + 1, tcb2);
                    }
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            lMethodCalls[i - 1] = new Label();

        mv.visitTryCatchBlock(lMethodStart, lMethodEnd, lCatchSEE, EXCEPTION_NAME);

        for (Object o : mn.tryCatchBlocks) {
            TryCatchBlockNode tcb = (TryCatchBlockNode) o;
            if (EXCEPTION_NAME.equals(tcb.type))
                throw new UnableToInstrumentException("catch for " + SUSPEND_EXECUTION_CLASS.getSimpleName(), className, mn.name, mn.desc);
//            if (INTERRUPTED_EXCEPTION_NAME.equals(tcb.type))
//                throw new UnableToInstrumentException("catch for " + InterruptedException.class.getSimpleName(), className, mn.name, mn.desc);

            tcb.accept(mv);
        }

        if (mn.visibleParameterAnnotations != null)
            dumpParameterAnnotations(mv, mn.visibleParameterAnnotations, true);
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    }

    @SuppressWarnings("unchecked")
    private void splitTryCatch(FrameInfo fi) {
        for (int i = 0; i < mn.tryCatchBlocks.size(); i++) {
            TryCatchBlockNode tcb = (TryCatchBlockNode) mn.tryCatchBlocks.get(i);

            int start = getLabelIdx(tcb.start);
            int end = getLabelIdx(tcb.end);

            if (start <= fi.endInstruction && end >= fi.endInstruction) {
                //System.out.println("i="+i+" start="+start+" end="+end+" split="+splitIdx+
                //        " start="+mn.instructions.get(start)+" end="+mn.instructions.get(end));

                // need to split try/catch around the suspendable call
                if (start == fi.endInstruction) {
                    tcb.start = fi.createAfterLabel();
                } else {
                    if (end > fi.endInstruction) {
                        TryCatchBlockNode tcb2 = new TryCatchBlockNode(
                                fi.createAfterLabel(),
                                tcb.end, tcb.handler, tcb.type);
                        mn.tryCatchBlocks.add(i + 1, tcb2);
                    }
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        // Now, make sure we also include any applicable exception handlers
        boolean loop = true;
        while (loop) {
            loop = false;
            for (Iterator it = tryCatchBlocks.iterator(); it.hasNext();) {
                TryCatchBlockNode trycatch = (TryCatchBlockNode) it.next();

                if (LOGGING) {
                    // TODO use of default toString().
                    log("Scanning try/catch " + trycatch);
                }
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            }
        }

        // Emit try/catch blocks that are relevant to this method.
        for (Iterator it = tryCatchBlocks.iterator(); it.hasNext();) {
            TryCatchBlockNode trycatch = (TryCatchBlockNode) it.next();

            if (LOGGING) {
                // TODO use of default toString().
                log("try catch block original labels=" + trycatch.start + '-'
                        + trycatch.end + "->" + trycatch.handler);
            }

            final LabelNode start = instant.rangeLabel(trycatch.start);
            final LabelNode end = instant.rangeLabel(trycatch.end);

            // Ignore empty try/catch regions
            if (start == end) {
                if (LOGGING) {
                    log(" try catch block empty in this subroutine");
                }
                continue;
            }

            final LabelNode handler = instant.gotoLabel(trycatch.handler);

            if (LOGGING) {
                // TODO use of default toString().
                log(" try catch block new labels=" + start + '-' + end + "->"
                        + handler);
            }

            if (start == null || end == null || handler == null) {
                throw new RuntimeException("Internal error!");
            }

            newTryCatchBlocks.add(new TryCatchBlockNode(start,
                    end,
                    handler,
                    trycatch.type));
        }
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                mv.visitTryCatchBlock(ls[0], ls[1], ls[2], "java/lang/reflect/InvocationTargetException");
            }
        }

        for (Object o : mn.tryCatchBlocks) {
            TryCatchBlockNode tcb = (TryCatchBlockNode) o;
            if (EXCEPTION_NAME.equals(tcb.type) && !hasAnnotation) // we allow catch of SuspendExecution in method annotated with @Suspendable.
                throw new UnableToInstrumentException("catch for " + SUSPEND_EXECUTION_CLASS.getSimpleName(), className, mn.name, mn.desc);
//          if (INTERRUPTED_EXCEPTION_NAME.equals(tcb.type))
//              throw new UnableToInstrumentException("catch for " + InterruptedException.class.getSimpleName(), className, mn.name, mn.desc);

            tcb.accept(mv);
        }

        if (mn.visibleParameterAnnotations != null)
            dumpParameterAnnotations(mv, mn.visibleParameterAnnotations, true);
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    }

    @SuppressWarnings("unchecked")
    private void splitTryCatch(FrameInfo fi) {
        for (int i = 0; i < mn.tryCatchBlocks.size(); i++) {
            TryCatchBlockNode tcb = (TryCatchBlockNode) mn.tryCatchBlocks.get(i);

            int start = getLabelIdx(tcb.start);
            int end = getLabelIdx(tcb.end);

            if (start <= fi.endInstruction && end >= fi.endInstruction) {
                db.log(LogLevel.DEBUG, "Splitting try-catch in %s, block %d call at instruction %d", mn.name, i, fi.endInstruction);
                //System.out.println("i="+i+" start="+start+" end="+end+" split="+splitIdx+
                //        " start="+mn.instructions.get(start)+" end="+mn.instructions.get(end));

                // need to split try/catch around the suspendable call
                if (start == fi.endInstruction) {
                    tcb.start = fi.createAfterLabel();
                } else {
                    if (end > fi.endInstruction) {
                        TryCatchBlockNode tcb2 = new TryCatchBlockNode(
                                fi.createAfterLabel(),
                                tcb.end, tcb.handler, tcb.type);
                        mn.tryCatchBlocks.add(i + 1, tcb2);
                    }
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        }

        mv.visitTryCatchBlock(lMethodStart, lMethodEnd, lCatchSEE, EXCEPTION_NAME);

        for (Object o : mn.tryCatchBlocks) {
            TryCatchBlockNode tcb = (TryCatchBlockNode) o;
            if (EXCEPTION_NAME.equals(tcb.type))
                throw new UnableToInstrumentException("catch for " + SUSPEND_EXECUTION_CLASS.getSimpleName(), className, mn.name, mn.desc);
//            if (INTERRUPTED_EXCEPTION_NAME.equals(tcb.type))
//                throw new UnableToInstrumentException("catch for " + InterruptedException.class.getSimpleName(), className, mn.name, mn.desc);

            tcb.accept(mv);
        }

        if (mn.visibleParameterAnnotations != null) {
            dumpParameterAnnotations(mv, mn.visibleParameterAnnotations, true);
        }
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    }

    @SuppressWarnings("unchecked")
    private void splitTryCatch(FrameInfo fi) {
        for (int i = 0; i < mn.tryCatchBlocks.size(); i++) {
            TryCatchBlockNode tcb = (TryCatchBlockNode) mn.tryCatchBlocks.get(i);

            int start = getLabelIdx(tcb.start);
            int end = getLabelIdx(tcb.end);

            if (start <= fi.endInstruction && end >= fi.endInstruction) {
                //System.out.println("i="+i+" start="+start+" end="+end+" split="+splitIdx+
                //        " start="+mn.instructions.get(start)+" end="+mn.instructions.get(end));

                // need to split try/catch around the suspendable call
                if (start == fi.endInstruction) {
                    tcb.start = fi.createAfterLabel();
                } else {
                    if (end > fi.endInstruction) {
                        TryCatchBlockNode tcb2 = new TryCatchBlockNode(
                                fi.createAfterLabel(),
                                tcb.end, tcb.handler, tcb.type);
                        mn.tryCatchBlocks.add(i + 1, tcb2);
                    }
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                }
            }
        }

        for (Object o : mn.tryCatchBlocks) {
            TryCatchBlockNode tcb = (TryCatchBlockNode) o;
            if (EXCEPTION_NAME.equals(tcb.type) && !hasAnnotation) // we allow catch of SuspendExecution in method annotated with @Suspendable.
                throw new UnableToInstrumentException("catch for SuspendExecution", className, mn.name, mn.desc);
            if (handleProxyInvocations && UNDECLARED_THROWABLE_NAME.equals(tcb.type)) // we allow catch of SuspendExecution in method annotated with @Suspendable.
                throw new UnableToInstrumentException("catch for UndeclaredThrowableException", className, mn.name, mn.desc);
//          if (INTERRUPTED_EXCEPTION_NAME.equals(tcb.type))
//              throw new UnableToInstrumentException("catch for " + InterruptedException.class.getSimpleName(), className, mn.name, mn.desc);

            tcb.accept(mv);
        }

        if (mn.visibleParameterAnnotations != null)
            dumpParameterAnnotations(mv, mn.visibleParameterAnnotations, true);
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