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/*
 * Copyright 2020 the original author or authors.
 * 

* 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 *

* https://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.openrewrite.java.tree; import org.jspecify.annotations.Nullable; import java.util.List; import static java.util.Collections.emptyList; import static java.util.Objects.requireNonNull; public interface Expression extends J { @Nullable JavaType getType(); T withType(@Nullable JavaType type); /** * @return A list of the side effects emitted by the statement if the statement was decomposed. * So for a binary operation, there are up to two potential side effects (the left and right side) and as * few as zero if both sides of the expression are something like constants or variable references. */ default List getSideEffects() { return emptyList(); } /** * If this expression is a {@link J.Parentheses} return the expression inside the parentheses {@code this}. * Otherwise, return this. This operation is performed recursively to return the first non-parenthetical * expression. * * @return The expression as if all surround parentheses were removed. Never a {@link J.Parentheses} instance. */ default Expression unwrap() { return requireNonNull(unwrap(this)); } static @Nullable Expression unwrap(@Nullable Expression expr) { if (expr instanceof J.Parentheses && ((J.Parentheses) expr).getTree() instanceof Expression) { return ((Expression) ((J.Parentheses) expr).getTree()).unwrap(); } else { return expr; } } CoordinateBuilder.Expression getCoordinates(); }





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