# HG changeset patch
# User jjg
# Date 1355916596 0
# Node ID 67b01d295cd2dd9be676a1311c8cd47ff0ebb657
# Parent  573b38691a745fbb5fb444db4d829d29360df831
8004833: Integrate doclint support into javac
Reviewed-by: mcimadamore

diff -r 573b38691a74 -r 67b01d295cd2 src/share/classes/com/sun/tools/javac/main/Main.java
--- a/src/share/classes/com/sun/tools/javac/main/Main.java	Tue Dec 18 18:15:47 2012 -0800
+++ b/src/share/classes/com/sun/tools/javac/main/Main.java	Wed Dec 19 11:29:56 2012 +0000
@@ -44,6 +44,8 @@
 
 import com.sun.source.util.JavacTask;
 import com.sun.source.util.Plugin;
+import com.sun.tools.doclint.DocLint;
+import com.sun.tools.javac.api.BasicJavacTask;
 import com.sun.tools.javac.code.Source;
 import com.sun.tools.javac.file.CacheFSInfo;
 import com.sun.tools.javac.file.JavacFileManager;
@@ -428,6 +430,7 @@
             if (batchMode)
                 CacheFSInfo.preRegister(context);
 
+            // FIXME: this code will not be invoked if using JavacTask.parse/analyze/generate
             // invoke any available plugins
             String plugins = options.get(PLUGIN);
             if (plugins != null) {
@@ -464,11 +467,32 @@
                 }
             }
 
+            comp = JavaCompiler.instance(context);
+
+            // FIXME: this code will not be invoked if using JavacTask.parse/analyze/generate
+            String xdoclint = options.get(XDOCLINT);
+            String xdoclintCustom = options.get(XDOCLINT_CUSTOM);
+            if (xdoclint != null || xdoclintCustom != null) {
+                Set<String> doclintOpts = new LinkedHashSet<String>();
+                if (xdoclint != null)
+                    doclintOpts.add(DocLint.XMSGS_OPTION);
+                if (xdoclintCustom != null) {
+                    for (String s: xdoclintCustom.split("\\s+")) {
+                        if (s.isEmpty())
+                            continue;
+                        doclintOpts.add(s.replace(XDOCLINT_CUSTOM.text, DocLint.XMSGS_CUSTOM_PREFIX));
+                    }
+                }
+                if (!(doclintOpts.size() == 1
+                        && doclintOpts.iterator().next().equals(DocLint.XMSGS_CUSTOM_PREFIX + "none"))) {
+                    JavacTask t = BasicJavacTask.instance(context);
+                    new DocLint().init(t, doclintOpts.toArray(new String[doclintOpts.size()]));
+                    comp.keepComments = true;
+                }
+            }
+
             fileManager = context.get(JavaFileManager.class);
 
-            comp = JavaCompiler.instance(context);
-            if (comp == null) return Result.SYSERR;
-
             if (!files.isEmpty()) {
                 // add filenames to fileObjects
                 comp = JavaCompiler.instance(context);
diff -r 573b38691a74 -r 67b01d295cd2 src/share/classes/com/sun/tools/javac/main/Option.java
--- a/src/share/classes/com/sun/tools/javac/main/Option.java	Tue Dec 18 18:15:47 2012 -0800
+++ b/src/share/classes/com/sun/tools/javac/main/Option.java	Wed Dec 19 11:29:56 2012 +0000
@@ -25,28 +25,30 @@
 
 package com.sun.tools.javac.main;
 
+import java.io.File;
+import java.io.FileWriter;
+import java.io.PrintWriter;
 import java.util.Collections;
-import com.sun.tools.javac.util.Log.PrefixKind;
-import com.sun.tools.javac.util.Log.WriterKind;
-import com.sun.tools.javac.util.Log;
+import java.util.EnumSet;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Set;
+
+import javax.lang.model.SourceVersion;
+
+import com.sun.tools.doclint.DocLint;
 import com.sun.tools.javac.code.Lint;
 import com.sun.tools.javac.code.Source;
 import com.sun.tools.javac.code.Type;
 import com.sun.tools.javac.jvm.Target;
+import com.sun.tools.javac.processing.JavacProcessingEnvironment;
+import com.sun.tools.javac.util.Log;
+import com.sun.tools.javac.util.Log.PrefixKind;
+import com.sun.tools.javac.util.Log.WriterKind;
 import com.sun.tools.javac.util.Options;
-import com.sun.tools.javac.processing.JavacProcessingEnvironment;
-import java.io.File;
-import java.io.FileWriter;
-import java.io.PrintWriter;
-import java.util.EnumSet;
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.Set;
-import javax.lang.model.SourceVersion;
-
 import static com.sun.tools.javac.main.Option.ChoiceKind.*;
+import static com.sun.tools.javac.main.Option.OptionGroup.*;
 import static com.sun.tools.javac.main.Option.OptionKind.*;
-import static com.sun.tools.javac.main.Option.OptionGroup.*;
 
 /**
  * Options for javac. The specific Option to handle a command-line option
@@ -79,6 +81,24 @@
     XLINT_CUSTOM("-Xlint:", "opt.Xlint.suboptlist",
             EXTENDED,   BASIC, ANYOF, getXLintChoices()),
 
+    XDOCLINT("-Xdoclint", "opt.Xdoclint", EXTENDED, BASIC),
+
+    XDOCLINT_CUSTOM("-Xdoclint:", "opt.Xdoclint.subopts", "opt.Xdoclint.custom", EXTENDED, BASIC) {
+        @Override
+        public boolean matches(String option) {
+            return DocLint.isValidOption(
+                    option.replace(XDOCLINT_CUSTOM.text, DocLint.XMSGS_CUSTOM_PREFIX));
+        }
+
+        @Override
+        public boolean process(OptionHelper helper, String option) {
+            String prev = helper.get(XDOCLINT_CUSTOM);
+            String next = (prev == null) ? option : (prev + " " + option);
+            helper.put(XDOCLINT_CUSTOM.text, next);
+            return false;
+        }
+    },
+
     // -nowarn is retained for command-line backward compatibility
     NOWARN("-nowarn", "opt.nowarn", STANDARD, BASIC) {
         @Override
diff -r 573b38691a74 -r 67b01d295cd2 src/share/classes/com/sun/tools/javac/resources/javac.properties
--- a/src/share/classes/com/sun/tools/javac/resources/javac.properties	Tue Dec 18 18:15:47 2012 -0800
+++ b/src/share/classes/com/sun/tools/javac/resources/javac.properties	Wed Dec 19 11:29:56 2012 +0000
@@ -138,6 +138,14 @@
     Enable recommended warnings
 javac.opt.Xlint.suboptlist=\
     Enable or disable specific warnings
+javac.opt.Xdoclint=\
+    Enable recommended checks for problems in javadoc comments
+javac.opt.Xdoclint.subopts = \
+    (all|[-]<group>)[/<access>]
+javac.opt.Xdoclint.custom=\n\
+\        Enable or disable specific checks for problems in javadoc comments,\n\
+\        where <group> is one of accessibility, html, reference, or syntax,\n\
+\        and <access> is one of public, protected, package, or private.
 javac.opt.Xstdout=\
     Redirect standard output
 javac.opt.X=\
diff -r 573b38691a74 -r 67b01d295cd2 test/tools/javac/doclint/DocLintTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/doclint/DocLintTest.java	Wed Dec 19 11:29:56 2012 +0000
@@ -0,0 +1,225 @@
+/*
+ * Copyright (c) 2012, 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 8004833
+ * @summary Integrate doclint support into javac
+ */
+
+import java.io.File;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.net.URI;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import javax.tools.Diagnostic;
+import javax.tools.JavaCompiler;
+import javax.tools.JavaFileObject;
+import javax.tools.SimpleJavaFileObject;
+import javax.tools.StandardJavaFileManager;
+import javax.tools.StandardLocation;
+import javax.tools.ToolProvider;
+import static javax.tools.Diagnostic.Kind.*;
+
+import com.sun.source.util.JavacTask;
+import com.sun.tools.javac.main.Main;
+import java.util.EnumSet;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class DocLintTest {
+    public static void main(String... args) throws Exception {
+        new DocLintTest().run();
+    }
+
+    JavaCompiler javac;
+    StandardJavaFileManager fm;
+    JavaFileObject file;
+
+    final String code =
+        /* 01 */    "/** Class comment. */\n" +
+        /* 02 */    "public class Test {\n" +
+        /* 03 */    "    /** Method comment. */\n" +
+        /* 04 */    "    public void method() { }\n" +
+        /* 05 */    "\n" +
+        /* 06 */    "    /** Syntax < error. */\n" +
+        /* 07 */    "    private void syntaxError() { }\n" +
+        /* 08 */    "\n" +
+        /* 09 */    "    /** @see DoesNotExist */\n" +
+        /* 10 */    "    protected void referenceError() { }\n" +
+        /* 08 */    "\n" +
+        /* 09 */    "    /** @return */\n" +
+        /* 10 */    "    public int emptyReturn() { return 0; }\n" +
+        /* 11 */    "}\n";
+
+    final String rawDiags = "-XDrawDiagnostics";
+    private enum Message {
+        // doclint messages
+        DL_ERR6(ERROR, "Test.java:6:16: compiler.err.proc.messager: malformed HTML"),
+        DL_ERR9(ERROR, "Test.java:9:14: compiler.err.proc.messager: reference not found"),
+        DL_WRN12(WARNING, "Test.java:12:9: compiler.warn.proc.messager: no description for @return"),
+
+        OPT_BADARG(ERROR, "invalid flag: -Xdoclint:badarg");
+
+        final Diagnostic.Kind kind;
+        final String text;
+
+        static Message get(String text) {
+            for (Message m: values()) {
+                if (m.text.equals(text))
+                    return m;
+            }
+            return null;
+        }
+
+        Message(Diagnostic.Kind kind, String text) {
+            this.kind = kind;
+            this.text = text;
+        }
+
+        @Override
+        public String toString() {
+            return "[" + kind + ",\"" + text + "\"]";
+        }
+    }
+    void run() throws Exception {
+        javac = ToolProvider.getSystemJavaCompiler();
+        fm = javac.getStandardFileManager(null, null, null);
+        fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(new File(".")));
+        file = new SimpleJavaFileObject(URI.create("Test.java"), JavaFileObject.Kind.SOURCE) {
+            @Override
+            public CharSequence getCharContent(boolean ignoreEncoding) {
+                return code;
+            }
+        };
+
+        test(Collections.<String>emptyList(),
+                Main.Result.OK,
+                EnumSet.noneOf(Message.class));
+
+        test(Arrays.asList("-Xdoclint:none"),
+                Main.Result.OK,
+                EnumSet.noneOf(Message.class));
+
+        test(Arrays.asList(rawDiags, "-Xdoclint"),
+                Main.Result.ERROR,
+                EnumSet.of(Message.DL_ERR6, Message.DL_ERR9, Message.DL_WRN12));
+
+        test(Arrays.asList(rawDiags, "-Xdoclint:all/public"),
+                Main.Result.OK,
+                EnumSet.of(Message.DL_WRN12));
+
+        test(Arrays.asList(rawDiags, "-Xdoclint:syntax"),
+                Main.Result.ERROR,
+                EnumSet.of(Message.DL_ERR6, Message.DL_WRN12));
+
+        test(Arrays.asList(rawDiags, "-Xdoclint:reference"),
+                Main.Result.ERROR,
+                EnumSet.of(Message.DL_ERR9));
+
+        test(Arrays.asList(rawDiags, "-Xdoclint:badarg"),
+                Main.Result.CMDERR,
+                EnumSet.of(Message.OPT_BADARG));
+
+        if (errors > 0)
+            throw new Exception(errors + " errors occurred");
+    }
+
+    void test(List<String> opts, Main.Result expectResult, Set<Message> expectMessages) {
+        System.err.println("test: " + opts);
+        StringWriter sw = new StringWriter();
+        PrintWriter pw = new PrintWriter(sw);
+        List<JavaFileObject> files = Arrays.asList(file);
+        try {
+            JavacTask t = (JavacTask) javac.getTask(pw, fm, null, opts, null, files);
+            boolean ok = t.call();
+            pw.close();
+            String out = sw.toString().replaceAll("[\r\n]+", "\n");
+            if (!out.isEmpty())
+                System.err.println(out);
+            if (ok && expectResult != Main.Result.OK) {
+                error("Compilation succeeded unexpectedly");
+            } else if (!ok && expectResult != Main.Result.ERROR) {
+                error("Compilation failed unexpectedly");
+            } else
+                check(out, expectMessages);
+        } catch (IllegalArgumentException e) {
+            System.err.println(e);
+            String expectOut = expectMessages.iterator().next().text;
+            if (expectResult != Main.Result.CMDERR)
+                error("unexpected exception caught");
+            else if (!e.getMessage().equals(expectOut)) {
+                error("unexpected exception message: "
+                        + e.getMessage()
+                        + " expected: " + expectOut);
+            }
+        }
+
+//        if (errors > 0)
+//            throw new Error("stop");
+    }
+
+    private void check(String out, Set<Message> expect) {
+        Pattern stats = Pattern.compile("^([1-9]+) (error|warning)(s?)");
+        Set<Message> found = EnumSet.noneOf(Message.class);
+        int e = 0, w = 0;
+        if (!out.isEmpty()) {
+            for (String line: out.split("[\r\n]+")) {
+                Matcher s = stats.matcher(line);
+                if (s.matches()) {
+                    int i = Integer.valueOf(s.group(1));
+                    if (s.group(2).equals("error"))
+                        e++;
+                    else
+                        w++;
+                    continue;
+                }
+
+                Message m = Message.get(line);
+                if (m == null)
+                    error("Unexpected line: " + line);
+                else
+                    found.add(m);
+            }
+        }
+        for (Message m: expect) {
+            if (!found.contains(m))
+                error("expected message not found: " + m.text);
+        }
+        for (Message m: found) {
+            if (!expect.contains(m))
+                error("unexpected message found: " + m.text);
+        }
+    }
+
+    void error(String msg) {
+        System.err.println("Error: " + msg);
+        errors++;
+    }
+
+    int errors;
+}