1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/processing/errors/TestSuppression.java Mon Aug 30 18:03:35 2010 -0700
1.3 @@ -0,0 +1,232 @@
1.4 +/*
1.5 + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 6403465
1.30 + * @summary javac should defer diagnostics until it can be determined they are persistent
1.31 + */
1.32 +
1.33 +import java.io.*;
1.34 +import java.util.*;
1.35 +import javax.annotation.processing.*;
1.36 +import javax.lang.model.*;
1.37 +import javax.lang.model.element.TypeElement;
1.38 +import javax.tools.*;
1.39 +
1.40 +import com.sun.source.util.JavacTask;
1.41 +import com.sun.tools.javac.api.JavacTool;
1.42 +import com.sun.tools.javac.util.JCDiagnostic;
1.43 +
1.44 +import static com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag.*;
1.45 +
1.46 +
1.47 +public class TestSuppression {
1.48 + public static void main(String... args) throws Exception {
1.49 + new TestSuppression().run(args);
1.50 + }
1.51 +
1.52 + enum WarningKind { NO, YES };
1.53 +
1.54 + String[] cases = {
1.55 + // missing class C
1.56 + "class X { C c; }",
1.57 + "class X { C foo() { return null; } }",
1.58 + "class X { void foo(C c) { } }",
1.59 + "class X extends C { }",
1.60 + "class X<T extends C> { }",
1.61 + // missing interface I
1.62 + "class X implements I { }",
1.63 + "interface X extends I { }",
1.64 + // missing exception E
1.65 + "class X { void m() throws E { } }",
1.66 + // missing method m
1.67 + "class X extends C { int i = m(); }",
1.68 + // missing field f
1.69 + "class X extends C { int i = f; }"
1.70 + };
1.71 +
1.72 + void run(String... args) throws Exception {
1.73 + for (String c: cases) {
1.74 + for (WarningKind wk: WarningKind.values()) {
1.75 + for (int g = 1; g <= 3; g++) {
1.76 + try {
1.77 + test(c, wk, g);
1.78 + } catch (Throwable t) {
1.79 + error("caught: " + t);
1.80 + }
1.81 + if (errors > 0) throw new AssertionError();
1.82 + }
1.83 + }
1.84 + }
1.85 +
1.86 + System.err.println(count + " test cases");
1.87 +
1.88 + if (errors > 0)
1.89 + throw new Exception(errors + " errors occurred");
1.90 + }
1.91 +
1.92 + void test(String src, WarningKind wk, int gen) throws Exception {
1.93 + count++;
1.94 + System.err.println("Test " + count + ": wk:" + wk + " gen:" + gen + " src:" +src);
1.95 +
1.96 + File testDir = new File("test" + count);
1.97 + File srcDir = createDir(testDir, "src");
1.98 + File gensrcDir = createDir(testDir, "gensrc");
1.99 + File classesDir = createDir(testDir, "classes");
1.100 +
1.101 + File x = writeFile(new File(srcDir, "X.java"), src);
1.102 +
1.103 + DiagListener dl = new DiagListener();
1.104 + JavacTool tool = JavacTool.create();
1.105 + StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, null);
1.106 + fm.setLocation(StandardLocation.CLASS_PATH,
1.107 + Arrays.asList(classesDir, new File(System.getProperty("test.classes"))));
1.108 + fm.setLocation(StandardLocation.CLASS_OUTPUT, Collections.singleton(classesDir));
1.109 + fm.setLocation(StandardLocation.SOURCE_OUTPUT, Collections.singleton(gensrcDir));
1.110 + List<String> args = new ArrayList<String>();
1.111 +// args.add("-XprintProcessorInfo");
1.112 + args.add("-XprintRounds");
1.113 + args.add("-Agen=" + gen);
1.114 + if (wk == WarningKind.YES)
1.115 + args.add("-Xlint:serial");
1.116 + Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(x);
1.117 +
1.118 + StringWriter sw = new StringWriter();
1.119 + PrintWriter pw = new PrintWriter(sw);
1.120 + JavacTask task = tool.getTask(pw, fm, dl, args, null, files);
1.121 + task.setProcessors(Arrays.asList(new AnnoProc()));
1.122 + boolean ok = task.call();
1.123 + pw.close();
1.124 +
1.125 + System.err.println("ok:" + ok + " diags:" + dl.counts);
1.126 + if (sw.toString().length() > 0) {
1.127 + System.err.println("output:\n" + sw.toString());
1.128 + }
1.129 +
1.130 + for (Diagnostic.Kind dk: Diagnostic.Kind.values()) {
1.131 + Integer v = dl.counts.get(dk);
1.132 + int found = (v == null) ? 0 : v;
1.133 + int expect = (dk == Diagnostic.Kind.WARNING && wk == WarningKind.YES) ? gen : 0;
1.134 + if (found != expect) {
1.135 + error("Unexpected value for " + dk + ": expected: " + expect + " found: " + found);
1.136 + }
1.137 + }
1.138 +
1.139 + System.err.println();
1.140 + }
1.141 +
1.142 + File createDir(File parent, String name) {
1.143 + File dir = new File(parent, name);
1.144 + dir.mkdirs();
1.145 + return dir;
1.146 + }
1.147 +
1.148 + File writeFile(File f, String content) throws IOException {
1.149 + FileWriter out = new FileWriter(f);
1.150 + try {
1.151 + out.write(content);
1.152 + } finally {
1.153 + out.close();
1.154 + }
1.155 + return f;
1.156 + }
1.157 +
1.158 + <T> void add(List<T> list, T... values) {
1.159 + for (T v: values)
1.160 + list.add(v);
1.161 + }
1.162 +
1.163 + void error(String msg) {
1.164 + System.err.println("Error: " + msg);
1.165 + errors++;
1.166 + }
1.167 +
1.168 + int count;
1.169 + int errors;
1.170 +
1.171 + static class DiagListener implements DiagnosticListener<JavaFileObject> {
1.172 + int total;
1.173 + Map<Diagnostic.Kind,Integer> counts = new TreeMap<Diagnostic.Kind,Integer>();
1.174 +
1.175 + public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
1.176 + System.err.println((++total) + ": "
1.177 + + "resolveError:" + isResolveError((JCDiagnostic) diagnostic) + "\n"
1.178 + + diagnostic);
1.179 + Diagnostic.Kind dk = diagnostic.getKind();
1.180 + Integer c = counts.get(dk);
1.181 + counts.put(dk, (c == null ? 1 : c + 1));
1.182 + }
1.183 +
1.184 + private static boolean isResolveError(JCDiagnostic d) {
1.185 + return d.isFlagSet(RESOLVE_ERROR);
1.186 + }
1.187 + }
1.188 +
1.189 + @SupportedAnnotationTypes("*")
1.190 + @SupportedOptions("gen")
1.191 + public static class AnnoProc extends AbstractProcessor {
1.192 + Filer f;
1.193 + Messager m;
1.194 + int gen;
1.195 +
1.196 + @Override
1.197 + public void init(ProcessingEnvironment processingEnv) {
1.198 + f = processingEnv.getFiler();
1.199 + m = processingEnv.getMessager();
1.200 + Map<String,String> options = processingEnv.getOptions();
1.201 + gen = Integer.parseInt(options.get("gen"));
1.202 + }
1.203 +
1.204 + @Override
1.205 + public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
1.206 + round++;
1.207 + if (round < gen)
1.208 + writeSource("Dummy" + round, "class Dummy" + round + " extends java.util.ArrayList{ }");
1.209 + else if (round == gen) {
1.210 + writeSource("C", "class C { int f; int m() { return 0; } }");
1.211 + writeSource("I", "interface I { }");
1.212 + writeSource("E", "class E extends Exception { }");
1.213 + }
1.214 + return true;
1.215 + }
1.216 +
1.217 + @Override
1.218 + public SourceVersion getSupportedSourceVersion() {
1.219 + return SourceVersion.latest();
1.220 + }
1.221 +
1.222 + private void writeSource(String name, String text) {
1.223 + try {
1.224 + JavaFileObject fo = f.createSourceFile(name);
1.225 + Writer out = fo.openWriter();
1.226 + out.write(text);
1.227 + out.close();
1.228 + } catch (IOException e) {
1.229 + m.printMessage(Diagnostic.Kind.ERROR, e.toString());
1.230 + }
1.231 + }
1.232 +
1.233 + int round = 0;
1.234 + }
1.235 +}
