/*
* Copyright 2011 JBoss, by Red Hat, Inc
*
* 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.jboss.errai.codegen.literal;
import org.jboss.errai.codegen.Context;
import org.jboss.errai.codegen.Statement;
import org.jboss.errai.codegen.meta.MetaClass;
import org.jboss.errai.codegen.meta.MetaClassFactory;
import org.jboss.errai.codegen.util.GenUtil;
/**
* @author Mike Brock <cbrock@redhat.com>
*/
public abstract class LiteralValue<T> implements Statement {
private final T value;
protected Class<T> clazz;
public abstract String getCanonicalString(Context context);
protected LiteralValue(final T value) {
this.value = value;
}
public T getValue() {
return value;
}
@Override
public String generate(final Context context) {
final Statement internedStatement = context.intern(this);
if (internedStatement != null) {
boolean permissiveMode = GenUtil.isPermissiveMode();
GenUtil.setPermissiveMode(true);
String s = internedStatement.generate(context);
GenUtil.setPermissiveMode(permissiveMode);
return s;
}
else {
return getCanonicalString(context);
}
}
@Override
public MetaClass getType() {
if (value == null)
return MetaClassFactory.get(Object.class);
return Class.class.isAssignableFrom(value.getClass())
? MetaClassFactory.get((Class<?>) value) : MetaClassFactory.get(value.getClass());
}
@Override
public int hashCode() {
return (value == null) ? 0 : value.hashCode();
}
@Override
public boolean equals(final Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
final LiteralValue<?> other = (LiteralValue<?>) obj;
if (value == null) {
if (other.value != null)
return false;
}
else if (!value.equals(other.value))
return false;
return true;
}
}