/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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.elasticsearch.painless.node;
import org.elasticsearch.painless.Definition;
import org.elasticsearch.painless.Globals;
import org.elasticsearch.painless.Location;
import org.elasticsearch.painless.Locals;
import org.elasticsearch.painless.MethodWriter;
import java.util.Objects;
import java.util.Set;
/**
* Represents a string constant.
*/
public final class EString extends AExpression {
public EString(Location location, String string) {
super(location);
this.constant = Objects.requireNonNull(string);
}
@Override
void extractVariables(Set<String> variables) {
// Do nothing.
}
@Override
void analyze(Locals locals) {
if (!read) {
throw createError(new IllegalArgumentException("Must read from constant [" + constant + "]."));
}
actual = Definition.STRING_TYPE;
}
@Override
void write(MethodWriter writer, Globals globals) {
throw new IllegalStateException("Illegal tree structure.");
}
@Override
public String toString() {
return singleLineToString("'" + constant.toString() + "'");
}
}