/*
* 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.DefBootstrap;
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 or shortcut on a def type. (Internal only.)
*/
final class PSubDefArray extends AStoreable {
private AExpression index;
PSubDefArray(Location location, AExpression index) {
super(location);
this.index = Objects.requireNonNull(index);
}
@Override
void extractVariables(Set<String> variables) {
throw createError(new IllegalStateException("Illegal tree structure."));
}
@Override
void analyze(Locals locals) {
index.analyze(locals);
index.expected = index.actual;
index = index.cast(locals);
actual = expected == null || explicit ? Definition.DEF_TYPE : expected;
}
@Override
void write(MethodWriter writer, Globals globals) {
setup(writer, globals);
load(writer, globals);
}
@Override
int accessElementCount() {
return 2;
}
@Override
boolean isDefOptimized() {
return true;
}
@Override
void updateActual(Type actual) {
this.actual = actual;
}
@Override
void setup(MethodWriter writer, Globals globals) {
// Current stack: def
writer.dup(); // def, def
index.write(writer, globals); // def, def, unnormalized_index
org.objectweb.asm.Type methodType = org.objectweb.asm.Type.getMethodType(
index.actual.type, Definition.DEF_TYPE.type, index.actual.type);
writer.invokeDefCall("normalizeIndex", methodType, DefBootstrap.INDEX_NORMALIZE); // def, normalized_index
}
@Override
void load(MethodWriter writer, Globals globals) {
writer.writeDebugInfo(location);
org.objectweb.asm.Type methodType =
org.objectweb.asm.Type.getMethodType(actual.type, Definition.DEF_TYPE.type, index.actual.type);
writer.invokeDefCall("arrayLoad", methodType, DefBootstrap.ARRAY_LOAD);
}
@Override
void store(MethodWriter writer, Globals globals) {
writer.writeDebugInfo(location);
org.objectweb.asm.Type methodType =
org.objectweb.asm.Type.getMethodType(Definition.VOID_TYPE.type, Definition.DEF_TYPE.type, index.actual.type, actual.type);
writer.invokeDefCall("arrayStore", methodType, DefBootstrap.ARRAY_STORE);
}
@Override
public String toString() {
return singleLineToString(prefix, index);
}
}