class BlockInstructionFactory extends InstructionFactory {
    @Override
    public boolean createInstruction(ExpressRunner expressRunner, InstructionSet result,
        Stack<ForRelBreakContinue> forStack, ExpressNode node, boolean isRoot) throws Exception {<FILL_FUNCTION_BODY>}
}

        if (node.isTypeEqualsOrChild("STAT_SEMICOLON") && result.getCurrentPoint() >= 0 && !(result.getInstruction(
            result.getCurrentPoint()) instanceof InstructionClearDataStack)) {
            result.addInstruction(new InstructionClearDataStack().setLine(node.getLine()));
        }

        boolean needOpenNewArea = !isRoot && "STAT_BLOCK".equals(node.getNodeType().getName());
        if (needOpenNewArea) {
            result.addInstruction(new InstructionOpenNewArea().setLine(node.getLine()));
        }
        boolean returnVal;
        boolean hasDef = false;
        for (ExpressNode tmpNode : node.getChildrenArray()) {
            boolean tmpHas = expressRunner.createInstructionSetPrivate(result, forStack, tmpNode, false);
            hasDef = hasDef || tmpHas;
        }
        if (needOpenNewArea) {
            result.addInstruction(new InstructionCloseNewArea().setLine(node.getLine()));
            returnVal = false;
        } else {
            returnVal = hasDef;
        }
        return returnVal;
    
<methods>public non-sealed void <init>() ,public abstract boolean createInstruction(com.ql.util.express.ExpressRunner, com.ql.util.express.InstructionSet, Stack<com.ql.util.express.instruction.ForRelBreakContinue>, com.ql.util.express.parse.ExpressNode, boolean) throws java.lang.Exception,public static com.ql.util.express.instruction.InstructionFactory getInstructionFactory(java.lang.String) <variables>private static final Map<java.lang.String,com.ql.util.express.instruction.InstructionFactory> INSTRUCTION_FACTORY_MAP