f66b1c7a8b
Generalizing ReusableContext and using it in JShell to speed up processing. Reviewed-by: mcimadamore, rfield
87 lines
3.4 KiB
Java
87 lines
3.4 KiB
Java
/*
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* Copyright (c) 2013, 2015, 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 8186694
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* @summary Verify that taking a Scope inside a class header
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* does not taint internal structures
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* @modules jdk.compiler
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* @run main ScopeClassHeaderTest
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*/
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import com.sun.source.tree.CompilationUnitTree;
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import com.sun.source.tree.Scope;
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import com.sun.source.util.JavacTask;
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import com.sun.source.util.TreePathScanner;
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import com.sun.source.util.Trees;
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import java.io.IOException;
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import java.net.URI;
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import java.util.ArrayList;
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import java.util.Collections;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.JavaFileObject.Kind;
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import javax.tools.SimpleJavaFileObject;
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import javax.tools.ToolProvider;
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import com.sun.source.tree.IdentifierTree;
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public class ScopeClassHeaderTest {
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public static void main(String... args) throws Exception {
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verifyScopeForClassHeader();
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}
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private static void verifyScopeForClassHeader() throws Exception {
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JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
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JavaFileObject source = new SimpleJavaFileObject(URI.create("mem://Test.java"), Kind.SOURCE) {
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@Override public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
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return "import java.util.*; class O { public void m() { class X<T extends ArrayList> { public void test() { String o; } } } }";
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}
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@Override public boolean isNameCompatible(String simpleName, Kind kind) {
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return !"module-info".equals(simpleName);
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}
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};
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Iterable<? extends JavaFileObject> fos = Collections.singletonList(source);
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JavacTask task = (JavacTask) tool.getTask(null, null, null, new ArrayList<String>(), null, fos);
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final Trees trees = Trees.instance(task);
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CompilationUnitTree cu = task.parse().iterator().next();
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task.analyze();
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new TreePathScanner<Void, Void>() {
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@Override
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public Void visitIdentifier(IdentifierTree node, Void p) {
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if (node.getName().contentEquals("ArrayList") || node.getName().contentEquals("String")) {
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Scope scope = trees.getScope(getCurrentPath());
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System.err.println("scope: " + scope);
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}
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return super.visitIdentifier(node, p);
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}
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}.scan(cu, null);
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}
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}
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