/* * Copyright (C) 2015 SoftIndex LLC. * * 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 io.datakernel.codegen; import org.objectweb.asm.Type; /** * Defines methods which allow to set fields */ final class ExpressionSet implements Expression { private final StoreDef to; private final Expression from; ExpressionSet(StoreDef to, Expression from) { this.to = to; this.from = from; } @Override public Type type(Context ctx) { return Type.VOID_TYPE; } @Override public Type load(Context ctx) { Object storeContext = to.beginStore(ctx); Type type = from.load(ctx); to.store(ctx, storeContext, type); return Type.VOID_TYPE; } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; ExpressionSet that = (ExpressionSet) o; return (from.equals(that.from)) && (to.equals(that.to)); } @Override public int hashCode() { int result = to.hashCode(); result = 31 * result + from.hashCode(); return result; } }