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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.CompileException;
import org.mvel2.ParserContext;
import org.mvel2.compiler.ExecutableStatement;
import org.mvel2.integration.VariableResolverFactory;
import static org.mvel2.util.ParseTools.checkNameSafety;
/**
* @author Christopher Brock
*/
public class DeclTypedVarNode extends ASTNode implements Assignment {
private String name;
public DeclTypedVarNode(String name, char[] expr, int start, int offset, Class type, int fields, ParserContext pCtx) {
super(pCtx);
this.egressType = type;
checkNameSafety(this.name = name);
this.expr = expr;
this.start = start;
this.offset = offset;
if ((fields & COMPILE_IMMEDIATE) != 0) {
pCtx.addVariable(name, egressType, true);
}
}
public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
if (!factory.isResolveable(name)) factory.createVariable(name, null, egressType);
else throw new CompileException("variable defined within scope: " + name, expr, start);
return null;
}
public Object getReducedValue(Object ctx, Object thisValue, VariableResolverFactory factory) {
if (!factory.isResolveable(name)) factory.createVariable(name, null, egressType);
else throw new CompileException("variable defined within scope: " + name, expr, start);
return null;
}
public String getName() {
return name;
}
public String getAssignmentVar() {
return name;
}
public char[] getExpression() {
return new char[0];
}
public boolean isAssignment() {
return true;
}
public boolean isNewDeclaration() {
return true;
}
public void setValueStatement(ExecutableStatement stmt) {
throw new RuntimeException("illegal operation");
}
public String toString() {
return "var:" + name;
}
}