Examples of org.apache.commons.jexl2.parser.JexlNode

org.apache.commons.jexl2.parser.JexlNode
Base class for parser nodes - holds an 'image' of the token for later use. @since 2.0

            return arithmetic.mod(left, right);
        } catch (RuntimeException xrt) {
            if (!strict && xrt instanceof ArithmeticException) {
                return new Double(0.0);
            }
            JexlNode xnode = findNullOperand(xrt, node, left, right);
            throw new JexlException(xnode, "% error", xrt);
        }
    }

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        Object left = node.jjtGetChild(0).jjtAccept(this, data);
        Object right = node.jjtGetChild(1).jjtAccept(this, data);
        try {
            return arithmetic.multiply(left, right);
        } catch (RuntimeException xrt) {
            JexlNode xnode = findNullOperand(xrt, node, left, right);
            throw new JexlException(xnode, "* error", xrt);
        }
    }

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        Object left = node.jjtGetChild(0).jjtAccept(this, data);
        Object right = node.jjtGetChild(1).jjtAccept(this, data);
        try {
            return arithmetic.equals(left, right) ? Boolean.FALSE : Boolean.TRUE;
        } catch (RuntimeException xrt) {
            JexlNode xnode = findNullOperand(xrt, node, left, right);
            throw new JexlException(xnode, "!= error", xrt);
        }
    }

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        Object result = null;
        StringBuilder variableName = null;
        boolean isVariable = true;
        int v = 0;
        for (int c = 0; c < numChildren; c++) {
            JexlNode theNode = node.jjtGetChild(c);
            // integer literals may be part of an antish var name only if no bean was found so far
            if (result == null && theNode instanceof ASTIntegerLiteral) {
                isVariable &= v > 0;
            } else {
                isVariable &= (theNode instanceof ASTIdentifier);
                result = theNode.jjtAccept(this, result);
            }
            // if we get null back a result, check for an ant variable
            if (result == null && isVariable) {
                if (v == 0) {
                    variableName = new StringBuilder(node.jjtGetChild(0).image);

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        return Boolean.TRUE;
    }


    /** {@inheritDoc} */
    public Object visit(ASTUnaryMinusNode node, Object data) {
        JexlNode valNode = node.jjtGetChild(0);
        Object val = valNode.jjtAccept(this, data);
        if (val instanceof Byte) {
            byte valueAsByte = ((Byte) val).byteValue();
            return Byte.valueOf((byte) -valueAsByte);
        } else if (val instanceof Short) {
            short valueAsShort = ((Short) val).shortValue();

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        }
        // synthetize expr using register
        expr = "#0" + (expr.charAt(0) == '[' ? "" : ".") + expr + ";";
        try {
            parser.ALLOW_REGISTERS = true;
            JexlNode tree = parse(expr, null);
            JexlNode node = tree.jjtGetChild(0);
            Interpreter interpreter = createInterpreter(context);
            // set register
            interpreter.setRegisters(bean);
            return node.jjtAccept(interpreter, null);
        } catch (JexlException xjexl) {
            if (silent) {
                logger.warn(xjexl.getMessage(), xjexl.getCause());
                return null;
            }

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        }
        // synthetize expr using registers
        expr = "#0" + (expr.charAt(0) == '[' ? "" : ".") + expr + "=" + "#1" + ";";
        try {
            parser.ALLOW_REGISTERS = true;
            JexlNode tree = parse(expr, null);
            JexlNode node = tree.jjtGetChild(0);
            Interpreter interpreter = createInterpreter(context);
            // set the registers
            interpreter.setRegisters(bean, value);
            node.jjtAccept(interpreter, null);
        } catch (JexlException xjexl) {
            if (silent) {
                logger.warn(xjexl.getMessage(), xjexl.getCause());
                return;
            }

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        Debugger dbg = new Debugger();
        // iterate over all expression in cache
        Iterator<Map.Entry<String,ASTJexlScript>> inodes = jexl.cache.entrySet().iterator();
        while (inodes.hasNext()) {
            Map.Entry<String,ASTJexlScript> entry = inodes.next();
            JexlNode node = entry.getValue();
            // recreate expr string from AST
            dbg.debug(node);
            String expressiondbg = dbg.data();
            // recreate expr from string
            Expression exprdbg = jdbg.createExpression(expressiondbg);
            // make arg cause become the root cause
            JexlNode root = ((ExpressionImpl) exprdbg).script;
            while (root.jjtGetParent() != null) {
                root = root.jjtGetParent();
            }
            // test equality
            String reason = JexlTestCase.checkEquals(root, node);
            if (reason != null) {
                throw new RuntimeException("debugger equal failed: "

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        /** {@inheritDoc} */
        @Override
        public Expression prepare(Interpreter interpreter) {
            String value = interpreter.interpret(node).toString();
            JexlNode dnode = toNode(value, jexl.isDebug()? node.getInfo() : null);
            return new DeferredExpression(value, dnode, this);
        }

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        end = 0;
        if (node != null) {
            builder.setLength(0);
            this.cause = node;
            // make arg cause become the root cause
            JexlNode root = node;
            while (root.jjtGetParent() != null) {
                root = root.jjtGetParent();
            }
            root.jjtAccept(this, null);
        }
        return end > 0;
    }

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