246 lines
8.5 KiB
Java
246 lines
8.5 KiB
Java
/*
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* Copyright (c) 2010, 2021, 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 6403465
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* @summary javac should defer diagnostics until it can be determined they are persistent
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.file
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* jdk.compiler/com.sun.tools.javac.util
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*/
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import java.io.*;
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import java.util.*;
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import javax.annotation.processing.*;
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import javax.lang.model.*;
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import javax.lang.model.element.TypeElement;
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import javax.tools.*;
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import com.sun.source.util.JavacTask;
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import com.sun.tools.javac.api.ClientCodeWrapper;
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import com.sun.tools.javac.api.JavacTool;
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import com.sun.tools.javac.util.JCDiagnostic;
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import static com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag.*;
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public class TestSuppression {
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public static void main(String... args) throws Exception {
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new TestSuppression().run(args);
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}
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enum WarningKind { NO, YES };
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String[] cases = {
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// missing class C
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"class X { C c; }",
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"class X { C foo() { return null; } }",
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"class X { void foo(C c) { } }",
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"class X extends C { }",
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"class X<T extends C> { }",
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// missing interface I
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"class X implements I { }",
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"interface X extends I { }",
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// missing exception E
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"class X { void m() throws E { } }",
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// missing method m
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"class X extends C { int i = m(); }",
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// missing field f
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"class X extends C { int i = f; }"
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};
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void run(String... args) throws Exception {
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for (String c: cases) {
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for (WarningKind wk: WarningKind.values()) {
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for (int g = 1; g <= 3; g++) {
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try {
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test(c, wk, g);
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} catch (Throwable t) {
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error("caught: " + t);
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}
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if (errors > 0) throw new AssertionError();
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}
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}
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}
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System.err.println(count + " test cases");
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if (errors > 0)
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throw new Exception(errors + " errors occurred");
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}
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void test(String src, WarningKind wk, int gen) throws Exception {
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count++;
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System.err.println("Test " + count + ": wk:" + wk + " gen:" + gen + " src:" +src);
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File testDir = new File("test" + count);
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File srcDir = createDir(testDir, "src");
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File gensrcDir = createDir(testDir, "gensrc");
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File classesDir = createDir(testDir, "classes");
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File x = writeFile(new File(srcDir, "X.java"), src);
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DiagListener dl = new DiagListener();
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JavacTool tool = JavacTool.create();
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try (StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, null)) {
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fm.setLocation(StandardLocation.CLASS_PATH,
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Arrays.asList(classesDir, new File(System.getProperty("test.classes"))));
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fm.setLocation(StandardLocation.CLASS_OUTPUT, Collections.singleton(classesDir));
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fm.setLocation(StandardLocation.SOURCE_OUTPUT, Collections.singleton(gensrcDir));
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List<String> args = new ArrayList<String>();
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// args.add("-XprintProcessorInfo");
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args.add("-XprintRounds");
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args.add("-Agen=" + gen);
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if (wk == WarningKind.YES)
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args.add("-Xlint:serial");
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Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(x);
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StringWriter sw = new StringWriter();
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PrintWriter pw = new PrintWriter(sw);
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JavacTask task = tool.getTask(pw, fm, dl, args, null, files);
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task.setProcessors(Arrays.asList(new AnnoProc()));
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boolean ok = task.call();
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pw.close();
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System.err.println("ok:" + ok + " diags:" + dl.counts);
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if (sw.toString().length() > 0) {
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System.err.println("output:\n" + sw.toString());
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}
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for (Diagnostic.Kind dk: Diagnostic.Kind.values()) {
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Integer v = dl.counts.get(dk);
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int found = (v == null) ? 0 : v;
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int expect = (dk == Diagnostic.Kind.WARNING && wk == WarningKind.YES) ? gen : 0;
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if (found != expect) {
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error("Unexpected value for " + dk + ": expected: " + expect + " found: " + found);
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}
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}
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System.err.println();
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}
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}
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File createDir(File parent, String name) {
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File dir = new File(parent, name);
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dir.mkdirs();
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return dir;
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}
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File writeFile(File f, String content) throws IOException {
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FileWriter out = new FileWriter(f);
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try {
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out.write(content);
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} finally {
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out.close();
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}
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return f;
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}
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<T> void add(List<T> list, T... values) {
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for (T v: values)
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list.add(v);
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}
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void error(String msg) {
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System.err.println("Error: " + msg);
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errors++;
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}
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int count;
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int errors;
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static class DiagListener implements DiagnosticListener<JavaFileObject> {
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int total;
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Map<Diagnostic.Kind,Integer> counts = new TreeMap<Diagnostic.Kind,Integer>();
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public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
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System.err.println((++total) + ": "
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+ "resolveError:" + isResolveError(unwrap(diagnostic)) + "\n"
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+ diagnostic);
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Diagnostic.Kind dk = diagnostic.getKind();
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Integer c = counts.get(dk);
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counts.put(dk, (c == null ? 1 : c + 1));
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}
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private static boolean isResolveError(JCDiagnostic d) {
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return d.isFlagSet(RESOLVE_ERROR);
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}
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private JCDiagnostic unwrap(Diagnostic<? extends JavaFileObject> diagnostic) {
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if (diagnostic instanceof JCDiagnostic)
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return (JCDiagnostic) diagnostic;
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if (diagnostic instanceof ClientCodeWrapper.DiagnosticSourceUnwrapper)
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return ((ClientCodeWrapper.DiagnosticSourceUnwrapper)diagnostic).d;
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throw new IllegalArgumentException();
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}
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}
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@SupportedAnnotationTypes("*")
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@SupportedOptions("gen")
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public static class AnnoProc extends AbstractProcessor {
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Filer f;
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Messager m;
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int gen;
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@Override
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public void init(ProcessingEnvironment processingEnv) {
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f = processingEnv.getFiler();
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m = processingEnv.getMessager();
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Map<String,String> options = processingEnv.getOptions();
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gen = Integer.parseInt(options.get("gen"));
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}
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@Override
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public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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round++;
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if (round < gen)
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writeSource("Dummy" + round, "class Dummy" + round + " extends java.util.ArrayList{ }");
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else if (round == gen) {
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writeSource("C", "class C { int f; int m() { return 0; } }");
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writeSource("I", "interface I { }");
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writeSource("E", "class E extends Exception { }");
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}
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return true;
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}
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@Override
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public SourceVersion getSupportedSourceVersion() {
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return SourceVersion.latest();
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}
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private void writeSource(String name, String text) {
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try {
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JavaFileObject fo = f.createSourceFile(name);
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try (Writer out = fo.openWriter()) {
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out.write(text);
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}
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} catch (IOException e) {
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m.printError(e.toString());
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}
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}
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int round = 0;
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}
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}
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