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With inspiration from other libraries
/**
* 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 org.mvel2.Operator;
import org.mvel2.ParserContext;
import org.mvel2.compiler.Accessor;
import org.mvel2.integration.VariableResolverFactory;
import org.mvel2.integration.impl.StackDemarcResolverFactory;
import static org.mvel2.MVEL.eval;
import static org.mvel2.util.ParseTools.subCompileExpression;
/**
* @author Christopher Brock
*/
public class ReturnNode extends ASTNode {
public ReturnNode(char[] expr, int start, int offset, int fields, ParserContext pCtx) {
super(pCtx);
this.expr = expr;
this.start = start;
this.offset = offset;
if ((fields & COMPILE_IMMEDIATE) != 0) {
setAccessor((Accessor) subCompileExpression(expr, start, offset, pCtx));
}
}
public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
if (accessor == null) {
setAccessor((Accessor) subCompileExpression(expr, start, offset, pCtx));
}
factory.setTiltFlag(true);
return accessor.getValue(ctx, thisValue, new StackDemarcResolverFactory(factory));
}
public Object getReducedValue(Object ctx, Object thisValue, VariableResolverFactory factory) {
factory.setTiltFlag(true);
return eval(expr, start, offset, ctx, new StackDemarcResolverFactory(factory));
}
@Override
public boolean isOperator() {
return true;
}
@Override
public Integer getOperator() {
return Operator.RETURN;
}
@Override
public boolean isOperator(Integer operator) {
return Operator.RETURN == operator;
}
}