org.mvel2.ast.And Maven / Gradle / Ivy

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/**
 * MVEL 2.0
 * Copyright (C) 2007 The Codehaus
 * Mike Brock, Dhanji Prasanna, John Graham, Mark Proctor
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.mvel2.ast;

import static org.mvel2.util.CompilerTools.expectType;

import org.mvel2.ParserContext;
import org.mvel2.integration.VariableResolverFactory;

public class And extends BooleanNode {

    public And(ASTNode left, ASTNode right, boolean strongTyping, ParserContext pCtx) {
        super(pCtx);
        expectType(pCtx, this.left = left, Boolean.class, strongTyping);
        expectType(pCtx, this.right = right, Boolean.class, strongTyping);
    }

    public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
        return (((Boolean) left.getReducedValueAccelerated(ctx, thisValue, factory))
                && ((Boolean) right.getReducedValueAccelerated(ctx, thisValue, factory)));
    }

    public Object getReducedValue(Object ctx, Object thisValue, VariableResolverFactory factory) {
        throw new RuntimeException("improper use of AST element");
    }

    public String toString() {
        return "(" + left.toString() + " && " + right.toString() + ")";
    }

    public ASTNode getRightMost() {
        And n = this;
        while (n.right != null && n.right instanceof And) {
            n = (And) n.right;
        }
        return n.right;
    }

    public void setRightMost(ASTNode right) {
        And n = this;
        while (n.right != null && n.right instanceof And) {
            n = (And) n.right;
        }
        n.right = right;
    }

    public Class getEgressType() {
        return Boolean.class;
    }
}