/*
* 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.Definition.Type;
import org.elasticsearch.painless.Globals;
import org.elasticsearch.painless.Locals;
import org.elasticsearch.painless.Location;
import org.elasticsearch.painless.MethodWriter;
import java.util.Objects;
import java.util.Set;
/**
* Represents an array load/store.
*/
final class PSubBrace extends AStoreable {
private final Type type;
private AExpression index;
PSubBrace(Location location, Type type, AExpression index) {
super(location);
this.type = Objects.requireNonNull(type);
this.index = Objects.requireNonNull(index);
}
@Override
void extractVariables(Set<String> variables) {
index.extractVariables(variables);
}
@Override
void analyze(Locals locals) {
index.expected = Definition.INT_TYPE;
index.analyze(locals);
index = index.cast(locals);
actual = locals.getDefinition().getType(type.struct, type.dimensions - 1);
}
@Override
void write(MethodWriter writer, Globals globals) {
setup(writer, globals);
load(writer, globals);
}
@Override
int accessElementCount() {
return 2;
}
@Override
boolean isDefOptimized() {
return false;
}
@Override
void updateActual(Type actual) {
throw createError(new IllegalStateException("Illegal tree structure."));
}
@Override
void setup(MethodWriter writer, Globals globals) {
index.write(writer, globals);
writeIndexFlip(writer, MethodWriter::arrayLength);
}
@Override
void load(MethodWriter writer, Globals globals) {
writer.writeDebugInfo(location);
writer.arrayLoad(actual.type);
}
@Override
void store(MethodWriter writer, Globals globals) {
writer.writeDebugInfo(location);
writer.arrayStore(actual.type);
}
@Override
public String toString() {
return singleLineToString(prefix, index);
}
}