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/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8255464
* @summary Cannot access ModuleTree in a CompilationUnitTree
* @modules jdk.compiler/com.sun.tools.javac.api
*/
import java.io.IOException;
import java.io.PrintStream;
import java.net.URI;
import java.util.List;
import java.util.Objects;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.Tree;
import com.sun.source.util.JavacTask;
import com.sun.tools.javac.api.JavacTool;
public class CompilationUnitTreeTest {
public static void main(String... args) throws Exception {
new CompilationUnitTreeTest().run();
}
PrintStream out = System.err;
int errors;
void run() throws Exception {
testModuleCompilationUnit();
testOrdinaryCompilationUnit();
if (errors > 0) {
out.println(errors + " errors");
throw new Exception(errors + " errors");
}
}
void testModuleCompilationUnit() throws IOException {
out.println("Test ModuleCompilationUnit");
CompilationUnitTree cut = parse("import java.util.*; module m { }");
checkTree("package", cut.getPackage(), null);
checkList("imports", cut.getImports(), List.of("IMPORT import java.util.*;"));
checkList("type decls", cut.getTypeDecls(), List.of());
checkTree("module", cut.getModule(), "MODULE module m { }");
}
void testOrdinaryCompilationUnit() throws IOException {
out.println("Test OrdinaryCompilationUnit");
CompilationUnitTree cut = parse("package p; import java.util.*; public class C { };");
checkTree("package", cut.getPackage(), "PACKAGE package p;");
checkList("imports", cut.getImports(), List.of("IMPORT import java.util.*;"));
checkList("type decls", cut.getTypeDecls(), List.of("CLASS public class C { }", "EMPTY_STATEMENT ;"));
checkTree("module", cut.getModule(), null);
}
void checkTree(String label, Tree tree, String expect) {
String f = tree == null ? null
: tree.getKind() + " " + tree.toString().trim().replaceAll("\\s+", " ");
if (Objects.equals(f, expect)) {
out.println(" " + label + " OK: " + expect);
} else {
out.println(" " + label + " error");
out.println(" expect: " + expect);
out.println(" found: " + f);
errors++;
}
}
void checkList(String label, List<? extends Tree> trees, List<String> expect) {
Objects.requireNonNull(expect);
if (trees == null) {
out.println(" " + label + " error: list is null");
errors++;
return;
}
if (trees.size() != expect.size()) {
out.println(" " + label + " error: list size mismatch");
out.println(" expect: " + expect.size());
out.println(" found: " + trees.size());
errors++;
}
// compare entries in both lists
for (int i = 0; i < Math.min(trees.size(), expect.size()); i++) {
Tree ti = trees.get(i);
String ei = expect.get(i);
checkTree(label + "[" + i + "]", ti, ei);
}
// show any excess entries in expect list
for (int i = trees.size(); i < expect.size(); i++) {
String ei = expect.get(i);
out.println(" " + label + "[" + i + "]: expect: " + ei);
}
// show any excess entries in trees list
for (int i = expect.size(); i < trees.size(); i++) {
Tree ti = trees.get(i);
String fi = ti == null ? null : ti.getKind() + " " + ti.toString();
out.println(" " + label + "[" + i + "]: found: " + fi);
}
}
CompilationUnitTree parse(String text) throws IOException {
JavacTool tool = JavacTool.create();
JavacTask ct = tool.getTask(null, null, null,
null, null, List.of(new MyFileObject(text)));
return ct.parse().iterator().next();
}
static class MyFileObject extends SimpleJavaFileObject {
private final String text;
public MyFileObject(String text) {
super(URI.create("fo:/Test.java"), JavaFileObject.Kind.SOURCE);
this.text = text;
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return text;
}
}
}
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