/*
* 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.Field;
import org.elasticsearch.painless.Definition.Type;
import org.elasticsearch.painless.Globals;
import org.elasticsearch.painless.Locals;
import org.elasticsearch.painless.Location;
import org.elasticsearch.painless.MethodWriter;
import java.lang.reflect.Modifier;
import java.util.Objects;
import java.util.Set;
/**
* Represents a field load/store.
*/
final class PSubField extends AStoreable {
private final Field field;
PSubField(Location location, Field field) {
super(location);
this.field = Objects.requireNonNull(field);
}
@Override
void extractVariables(Set<String> variables) {
throw createError(new IllegalStateException("Illegal tree structure."));
}
@Override
void analyze(Locals locals) {
if (write && Modifier.isFinal(field.modifiers)) {
throw createError(new IllegalArgumentException(
"Cannot write to read-only field [" + field.name + "] for type [" + field.type.name + "]."));
}
actual = field.type;
}
@Override
void write(MethodWriter writer, Globals globals) {
writer.writeDebugInfo(location);
if (java.lang.reflect.Modifier.isStatic(field.modifiers)) {
writer.getStatic(field.owner.type, field.javaName, field.type.type);
} else {
writer.getField(field.owner.type, field.javaName, field.type.type);
}
}
@Override
int accessElementCount() {
return 1;
}
@Override
boolean isDefOptimized() {
return false;
}
@Override
void updateActual(Type actual) {
throw new IllegalArgumentException("Illegal tree structure.");
}
@Override
void setup(MethodWriter writer, Globals globals) {
// Do nothing.
}
@Override
void load(MethodWriter writer, Globals globals) {
writer.writeDebugInfo(location);
if (java.lang.reflect.Modifier.isStatic(field.modifiers)) {
writer.getStatic(field.owner.type, field.javaName, field.type.type);
} else {
writer.getField(field.owner.type, field.javaName, field.type.type);
}
}
@Override
void store(MethodWriter writer, Globals globals) {
writer.writeDebugInfo(location);
if (java.lang.reflect.Modifier.isStatic(field.modifiers)) {
writer.putStatic(field.owner.type, field.javaName, field.type.type);
} else {
writer.putField(field.owner.type, field.javaName, field.type.type);
}
}
@Override
public String toString() {
return singleLineToString(prefix, field.name);
}
}