/**
* Copyright 2007-2015, Kaazing Corporation. All rights reserved.
*
* 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.kaazing.k3po.lang.internal.ast.value;
import static java.lang.String.format;
import static org.kaazing.k3po.lang.internal.ast.util.AstUtil.equivalent;
import javax.el.ValueExpression;
import org.kaazing.k3po.lang.internal.ast.AstRegion;
import org.kaazing.k3po.lang.internal.el.ExpressionContext;
public final class AstExpressionValue extends AstValue {
private final ValueExpression value;
private final ExpressionContext environment;
public AstExpressionValue(ValueExpression value, ExpressionContext environment) {
if (value == null) {
throw new NullPointerException("value");
}
this.value = value;
this.environment = environment;
}
public ValueExpression getValue() {
return value;
}
public ExpressionContext getEnvironment() {
return environment;
}
@Override
public <R, P> R accept(Visitor<R, P> visitor, P parameter) throws Exception {
return visitor.visit(this, parameter);
}
@Override
protected int hashTo() {
return value.hashCode();
}
@Override
protected boolean equalTo(AstRegion that) {
return (that instanceof AstExpressionValue) && equalTo((AstExpressionValue) that);
}
protected boolean equalTo(AstExpressionValue that) {
return equivalent(this.value, that.value);
}
@Override
protected void describe(StringBuilder buf) {
buf.append(format("(%s)%s", value.getExpectedType().getSimpleName(), value.getExpressionString()));
}
}