8e2c1c68f6
The whenTrue and whenFalse sets need to be merged for non-boolean expressions. Reviewed-by: mcimadamore
344 lines
12 KiB
Java
344 lines
12 KiB
Java
/*
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* Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8214031 8214114 8236546
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* @summary Verify switch expressions embedded in various statements work properly.
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* @compile ExpressionSwitchEmbedding.java
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* @run main ExpressionSwitchEmbedding
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*/
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public class ExpressionSwitchEmbedding {
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public static void main(String... args) {
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new ExpressionSwitchEmbedding().run();
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}
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private void run() {
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{
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int i = 6;
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int o = 0;
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while (switch (i) {
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case 1: i = 0; yield true;
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case 2: i = 1; yield true;
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case 3, 4: i--;
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if (i == 2 || i == 4) {
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yield switch (i) {
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case 2 -> true;
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case 4 -> false;
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default -> throw new IllegalStateException();
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};
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} else {
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yield true;
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}
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default: i--; yield switch (i) {
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case -1 -> false;
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case 3 -> true;
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default -> true;
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};
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}) {
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o++;
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}
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if (o != 6 && i >= 0) {
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throw new IllegalStateException();
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}
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}
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{
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int i = 6;
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int o = 0;
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while (switch (i) {
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case 1: try { new ExpressionSwitchEmbedding().throwException(); } catch (Throwable t) { i = 0; yield true; }
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case 2: try { new ExpressionSwitchEmbedding().throwException(); } catch (Throwable t) { i = 1; yield true; }
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case 3, 4:
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try {
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new ExpressionSwitchEmbedding().throwException();
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} catch (Throwable t) {
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i--;
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if (i == 2 || i == 4) {
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try {
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yield switch (i) {
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case 2 -> throw new ResultException(true);
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case 4 -> false;
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default -> throw new IllegalStateException();
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};
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} catch (ResultException ex) {
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yield ex.result;
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}
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} else {
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yield true;
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}
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}
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default:
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try {
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new ExpressionSwitchEmbedding().throwException();
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} catch (Throwable t) {
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i--;
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yield switch (i) {
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case -1 -> false;
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case 3 -> true;
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default -> true;
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};
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}
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throw new AssertionError();
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}) {
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o++;
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}
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if (o != 6 && i >= 0) {
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throw new IllegalStateException();
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}
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}
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{
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int i = 6;
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int o = 0;
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if (switch (i) {
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case 1: i = 0; yield true;
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case 2: i = 1; yield true;
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case 3, 4: i--;
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if (i == 2 || i == 4) {
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yield (switch (i) {
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case 2 -> 3;
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case 4 -> 5;
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default -> throw new IllegalStateException();
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}) == i + 1;
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} else {
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yield true;
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}
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default: i--; yield switch (i) {
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case -1 -> false;
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case 3 -> true;
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default -> true;
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};
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}) {
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o++;
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}
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if (o != 1 && i != 5) {
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throw new IllegalStateException();
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}
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}
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{
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int i = 6;
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int o = 0;
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if (switch (i) {
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case 1: try { new ExpressionSwitchEmbedding().throwException(); } catch (Throwable t) { i = 0; yield true; }
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case 2: try { new ExpressionSwitchEmbedding().throwException(); } catch (Throwable t) { i = 1; yield true; }
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case 3, 4:
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try {
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new ExpressionSwitchEmbedding().throwException();
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} catch (Throwable t) {
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i--;
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if (i == 2 || i == 4) {
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try {
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yield switch (i) {
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case 2 -> throw new ResultException(true);
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case 4 -> false;
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default -> throw new IllegalStateException();
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};
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} catch (ResultException ex) {
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yield ex.result;
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}
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} else {
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yield true;
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}
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}
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default:
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try {
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new ExpressionSwitchEmbedding().throwException();
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} catch (Throwable t) {
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i--;
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yield switch (i) {
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case -1 -> false;
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case 3 -> true;
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default -> true;
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};
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}
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throw new AssertionError();
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}) {
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o++;
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}
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if (o != 1 && i != 5) {
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throw new IllegalStateException();
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}
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}
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{
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int o = 0;
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for (int i = 6; (switch (i) {
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case 1: i = 0; yield true;
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case 2: i = 1; yield true;
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case 3, 4: i--;
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if (i == 2 || i == 4) {
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yield switch (i) {
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case 2 -> true;
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case 4 -> false;
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default -> throw new IllegalStateException();
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};
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} else {
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yield true;
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}
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default: i--; yield switch (i) {
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case -1 -> false;
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case 3 -> true;
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default -> true;
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};
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}); ) {
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o++;
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}
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if (o != 6) {
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throw new IllegalStateException();
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}
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}
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{
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int o = 0;
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for (int i = 6; (switch (i) {
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case 1: try { new ExpressionSwitchEmbedding().throwException(); } catch (Throwable t) { i = 0; yield true; }
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case 2: try { new ExpressionSwitchEmbedding().throwException(); } catch (Throwable t) { i = 1; yield true; }
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case 3, 4:
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try {
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new ExpressionSwitchEmbedding().throwException();
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} catch (Throwable t) {
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i--;
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if (i == 2 || i == 4) {
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try {
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yield switch (i) {
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case 2 -> throw new ResultException(true);
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case 4 -> false;
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default -> throw new IllegalStateException();
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};
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} catch (ResultException ex) {
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yield ex.result;
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}
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} else {
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yield true;
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}
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}
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default:
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try {
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new ExpressionSwitchEmbedding().throwException();
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} catch (Throwable t) {
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i--;
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yield switch (i) {
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case -1 -> false;
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case 3 -> true;
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default -> true;
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};
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}
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throw new AssertionError();
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}); ) {
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o++;
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}
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if (o != 6) {
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throw new IllegalStateException();
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}
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}
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{
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int i = 6;
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int o = 0;
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do {
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o++;
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} while (switch (i) {
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case 1: i = 0; yield true;
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case 2: i = 1; yield true;
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case 3, 4: i--;
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if (i == 2 || i == 4) {
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yield switch (i) {
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case 2 -> true;
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case 4 -> false;
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default -> throw new IllegalStateException();
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};
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} else {
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yield true;
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}
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default: i--; yield switch (i) {
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case -1 -> false;
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case 3 -> true;
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default -> true;
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};
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});
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if (o != 6 && i >= 0) {
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throw new IllegalStateException();
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}
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}
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{
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int i = 6;
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int o = 0;
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do {
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o++;
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} while (switch (i) {
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case 1: try { new ExpressionSwitchEmbedding().throwException(); } catch (Throwable t) { i = 0; yield true; }
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case 2: try { new ExpressionSwitchEmbedding().throwException(); } catch (Throwable t) { i = 1; yield true; }
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case 3, 4:
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try {
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new ExpressionSwitchEmbedding().throwException();
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} catch (Throwable t) {
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i--;
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if (i == 2 || i == 4) {
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try {
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yield switch (i) {
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case 2 -> throw new ResultException(true);
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case 4 -> false;
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default -> throw new IllegalStateException();
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};
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} catch (ResultException ex) {
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yield ex.result;
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}
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} else {
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yield true;
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}
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}
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default:
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try {
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new ExpressionSwitchEmbedding().throwException();
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} catch (Throwable t) {
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i--;
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yield switch (i) {
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case -1 -> false;
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case 3 -> true;
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default -> true;
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};
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}
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throw new AssertionError();
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});
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if (o != 6 && i >= 0) {
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throw new IllegalStateException();
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}
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}
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{
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String s = "";
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Object o = switch (s) { default -> s != null && s == s; };
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if (!(Boolean) o) {
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throw new IllegalStateException();
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}
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}
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}
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private void throwException() {
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throw new RuntimeException();
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}
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private static final class ResultException extends RuntimeException {
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public final boolean result;
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public ResultException(boolean result) {
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this.result = result;
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}
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}
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}
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