Examples of org.apache.commons.jexl2.CacheTest$AssignNullTask

org.apache.commons.jexl2.parser.ASTReference
A task to check null assignment.

    }


    // JEXL-52: can be implemented by deriving Interpreter.{g,s}etAttribute; later
    public void test52base() throws Exception {
        JexlEngine jexl = new JexlEngine();
        Uberspect uber = jexl.getUberspect();
        // most likely, call will be in an Interpreter, getUberspect
        String[] names = ((Introspector) uber).getMethodNames(Another.class);
        assertTrue("should find methods", names.length > 0);
        int found = 0;
        for (String name : names) {

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     */
    public static Uberspect getUberspect(Log logger) {
        if (logger == null || logger.equals(LogFactory.getLog(JexlEngine.class))) {
            return UberspectHolder.UBERSPECT;
        }
        return new UberspectImpl(logger);
    }

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    static final String[][] GET_METHOD_ARRAY2 =
        new String[][] { {"One", "Two", "Three"},{"Four", "Five", "Six"} };


    @Override
    public void setUp() {
        asserter = new Asserter(JEXL);
    }

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public class ArithmeticTest extends JexlTestCase {
    private Asserter asserter;


    @Override
    public void setUp() {
        asserter = new Asserter(JEXL);
    }

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            property = ((ASTIntegerLiteral) propertyNode).getLiteral();
            antVar = true;
        } else if (propertyNode instanceof ASTArrayAccess) {
            // first objectNode is the identifier
            objectNode = propertyNode;
            ASTArrayAccess narray = (ASTArrayAccess) objectNode;
            Object nobject = narray.jjtGetChild(0).jjtAccept(this, object);
            if (nobject == null) {
                throw new JexlException(objectNode, "array element is null");
            } else {
                object = nobject;
            }
            // can have multiple nodes - either an expression, integer literal or
            // reference
            last = narray.jjtGetNumChildren() - 1;
            for (int i = 1; i < last; i++) {
                objectNode = narray.jjtGetChild(i);
                if (objectNode instanceof JexlNode.Literal<?>) {
                    object = objectNode.jjtAccept(this, object);
                } else {
                    Object index = objectNode.jjtAccept(this, null);
                    object = getAttribute(object, index, objectNode);
                }
            }
            property = narray.jjtGetChild(last).jjtAccept(this, null);
        } else {
            throw new JexlException(objectNode, "illegal assignment form");
        }
        // deal with ant variable; set context
        if (antVar) {

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    /** {@inheritDoc} */
    public Object visit(ASTForeachStatement node, Object data) {
        Object result = null;
        /* first objectNode is the loop variable */
        ASTReference loopReference = (ASTReference) node.jjtGetChild(0);
        ASTIdentifier loopVariable = (ASTIdentifier) loopReference.jjtGetChild(0);
        /* second objectNode is the variable to iterate */
        Object iterableValue = node.jjtGetChild(1).jjtAccept(this, data);
        // make sure there is a value to iterate on and a statement to execute
        if (iterableValue != null && node.jjtGetNumChildren() >= 3) {
            /* third objectNode is the statement to execute */

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     *      parsing this expression, or if the expression is neither an
     *      expression or a reference.
     */
    public Expression createExpression(String expression, JexlInfo info) {
        // Parse the expression
        ASTJexlScript tree = parse(expression, info);
        if (tree.jjtGetNumChildren() > 1) {
            logger.warn("The JEXL Expression created will be a reference"
                      + " to the first expression from the supplied script: \"" + expression + "\" ");
        }
        return createExpression(tree, expression);
    }

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    public Script createScript(String scriptText, JexlInfo info) {
        if (scriptText == null) {
            throw new NullPointerException("scriptText is null");
        }
        // Parse the expression
        ASTJexlScript tree = parse(scriptText, info);
        return createScript(tree, scriptText);
    }

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     * @return the parsed tree
     * @throws JexlException if any error occured during parsing
     */
    protected ASTJexlScript parse(CharSequence expression, JexlInfo info) {
        String expr = cleanExpression(expression);
        ASTJexlScript tree = null;
        synchronized (parser) {
            if (cache != null) {
                tree = cache.get(expr);
                if (tree != null) {
                    return tree;

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    /** {@inheritDoc} */
    public Object visit(ASTForeachStatement node, Object data) {
        Object result = null;
        /* first objectNode is the loop variable */
        ASTReference loopReference = (ASTReference) node.jjtGetChild(0);
        ASTIdentifier loopVariable = (ASTIdentifier) loopReference.jjtGetChild(0);
        /* second objectNode is the variable to iterate */
        Object iterableValue = node.jjtGetChild(1).jjtAccept(this, data);
        // make sure there is a value to iterate on and a statement to execute
        if (iterableValue != null && node.jjtGetNumChildren() >= 3) {
            /* third objectNode is the statement to execute */

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