108 lines
3.7 KiB
Java
108 lines
3.7 KiB
Java
/*
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* Copyright (c) 2023, 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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* @summary Verify proper behavior of TreeScanner w.r.t. templated Strings
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* @modules jdk.compiler
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*/
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import java.io.*;
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import java.util.*;
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import javax.tools.*;
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import com.sun.source.tree.*;
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import com.sun.source.util.*;
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import java.net.URI;
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import java.net.URISyntaxException;
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public class TreeScannerTest {
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private static final String JAVA_VERSION = System.getProperty("java.specification.version");
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public static void main(String... args) throws Exception {
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JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
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String code = """
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public class Test {
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private void test(int a) {
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String s1 = TEST."p\\{a}s";
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String s2 = "p\\{a}s";
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}
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}
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""";
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JavacTask task = (JavacTask) compiler.getTask(null, null, null,
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List.of("--enable-preview", "-source", JAVA_VERSION), null, List.of(new TestJFO(code)));
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StringBuilder output = new StringBuilder();
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TreeScanner<Void,Void> checker = new TreeScanner<Void, Void>() {
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private boolean log;
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@Override
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public Void visitStringTemplate(StringTemplateTree node, Void p) {
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boolean prevLog = log;
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try {
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log = true;
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return super.visitStringTemplate(node, p);
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} finally {
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log = prevLog;
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}
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}
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@Override
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public Void scan(Tree tree, Void p) {
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if (log) {
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output.append("(");
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output.append(tree != null ? tree.getKind() : "null");
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try {
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return super.scan(tree, p);
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} finally {
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output.append(")");
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}
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} else {
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return super.scan(tree, p);
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}
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}
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};
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checker.scan(task.parse(), null);
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String expected = "(IDENTIFIER)(IDENTIFIER)(null)(IDENTIFIER)";
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if (!expected.equals(output.toString())) {
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throw new AssertionError("expected output not found, found: " + output);
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}
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}
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private static final class TestJFO extends SimpleJavaFileObject {
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private final String code;
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public TestJFO(String code) throws URISyntaxException, IOException {
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super(new URI("mem://Test.java"), Kind.SOURCE);
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this.code = code;
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}
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@Override
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public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
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return code;
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}
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}
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}
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