Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright 2004-2009 Sun Microsystems, Inc.  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.  Sun designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Sun in the LICENSE file that accompanied this code.

  *

  * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

  * CA 95054 USA or visit www.sun.com if you need additional information or

  * have any questions.

  */

 package com.sun.tools.apt.main;

 import java.io.*;

 import java.util.Map;

 import javax.tools.JavaFileManager;

 import javax.tools.JavaFileObject;

 import com.sun.tools.javac.file.JavacFileManager;

 import com.sun.tools.javac.util.*;

 import com.sun.tools.javac.code.*;

 import com.sun.tools.javac.jvm.*;

 import com.sun.tools.javac.code.Symbol.*;

 import com.sun.tools.javac.tree.JCTree.*;

 import com.sun.tools.apt.comp.*;

 import com.sun.tools.apt.util.Bark;

 import com.sun.mirror.apt.AnnotationProcessorFactory;

 import com.sun.tools.javac.parser.DocCommentScanner;

 /**

  *  <p><b>This is NOT part of any API supported by Sun Microsystems.

  *  If you write code that depends on this, you do so at your own

  *  risk.  This code and its internal interfaces are subject to change

  *  or deletion without notice.</b>

  */

 public class JavaCompiler extends com.sun.tools.javac.main.JavaCompiler {

     /** The context key for the compiler. */

     protected static final Context.Key<JavaCompiler> compilerKey =

         new Context.Key<JavaCompiler>();

     /** Get the JavaCompiler instance for this context. */

     public static JavaCompiler instance(Context context) {

         JavaCompiler instance = context.get(compilerKey);

         if (instance == null)

             instance = new JavaCompiler(context);

         return instance;

     }

     java.util.Set<String> genSourceFileNames;

     java.util.Set<String> genClassFileNames;

     public java.util.Set<String> getSourceFileNames() {

         return genSourceFileNames;

     }

     /** List of names of generated class files.

      */

     public java.util.Set<String> getClassFileNames() {

         return genClassFileNames;

     }

     java.util.Set<java.io.File> aggregateGenFiles = java.util.Collections.emptySet();

     public java.util.Set<java.io.File> getAggregateGenFiles() {

         return aggregateGenFiles;

     }

     /** The bark to be used for error reporting.

      */

     Bark bark;

     /** The log to be used for error reporting.

      */

     Log log;

     /** The annotation framework

      */

     Apt apt;

     private static Context preRegister(Context context) {

         Bark.preRegister(context);

         // force the use of the scanner that captures Javadoc comments

         DocCommentScanner.Factory.preRegister(context);

         if (context.get(JavaFileManager.class) == null)

             JavacFileManager.preRegister(context);

         return context;

     }

     /** Construct a new compiler from a shared context.

      */

     public JavaCompiler(Context context) {

         super(preRegister(context));

         context.put(compilerKey, this);

         apt = Apt.instance(context);

         ClassReader classReader = ClassReader.instance(context);

         classReader.preferSource = true;

         // TEMPORARY NOTE: bark==log, but while refactoring, we maintain their

         // original identities, to remember the original intent.

         log = Log.instance(context);

         bark = Bark.instance(context);

         Options options = Options.instance(context);

         classOutput   = options.get("-retrofit")      == null;

         nocompile     = options.get("-nocompile")     != null;

         print         = options.get("-print")         != null;

         classesAsDecls= options.get("-XclassesAsDecls") != null;

         genSourceFileNames = new java.util.LinkedHashSet<String>();

         genClassFileNames  = new java.util.LinkedHashSet<String>();

         // this forces a copy of the line map to be kept in the tree,

         // for use by com.sun.mirror.util.SourcePosition.

         lineDebugInfo = true;

     }

     /* Switches:

      */

     /** Emit class files. This switch is always set, except for the first

      *  phase of retrofitting, where signatures are parsed.

      */

     public boolean classOutput;

     /** The internal printing annotation processor should be used.

      */

     public boolean print;

     /** Compilation should not be done after annotation processing.

      */

     public boolean nocompile;

     /** Are class files being treated as declarations

      */

     public boolean classesAsDecls;

     /** Try to open input stream with given name.

      *  Report an error if this fails.

      *  @param filename   The file name of the input stream to be opened.

      */

     // PROVIDED FOR EXTREME BACKWARDS COMPATIBILITY

     // There are some very obscure errors that can arise while translating

     // the contents of a file from bytes to characters. In Tiger, these

     // diagnostics were ignored. This method provides compatibility with

     // that behavior. It would be better to honor those diagnostics, in which

     // case, this method can be deleted.

     @Override

     public CharSequence readSource(JavaFileObject filename) {

         try {

             inputFiles.add(filename);

             boolean prev = bark.setDiagnosticsIgnored(true);

             try {

                 return filename.getCharContent(false);

             }

             finally {

                 bark.setDiagnosticsIgnored(prev);

             }

         } catch (IOException e) {

             bark.error(Position.NOPOS, "cant.read.file", filename);

             return null;

         }

     }

     /** Parse contents of input stream.

      *  @param filename     The name of the file from which input stream comes.

      *  @param input        The input stream to be parsed.

      */

     // PROVIDED FOR BACKWARDS COMPATIBILITY

     // In Tiger, diagnostics from the scanner and parser were ignored.

     // This method provides compatibility with that behavior.

     // It would be better to honor those diagnostics, in which

     // case, this method can be deleted.

     @Override

     protected JCCompilationUnit parse(JavaFileObject filename, CharSequence content) {

         boolean prev = bark.setDiagnosticsIgnored(true);

         try {

             return super.parse(filename, content);

         }

         finally {

             bark.setDiagnosticsIgnored(prev);

         }

     }

     @Override

     protected boolean keepComments() {

         return true;  // make doc comments available to mirror API impl.

     }

     /** Track when the JavaCompiler has been used to compile something. */

     private boolean hasBeenUsed = false;

     /** Main method: compile a list of files, return all compiled classes

      *  @param filenames     The names of all files to be compiled.

      */

     public List<ClassSymbol> compile(List<String> filenames,

                                      Map<String, String> origOptions,

                                      ClassLoader aptCL,

                                      AnnotationProcessorFactory providedFactory,

                                      java.util.Set<Class<? extends AnnotationProcessorFactory> > productiveFactories,

                                      java.util.Set<java.io.File> aggregateGenFiles)

         throws Throwable {

         // as a JavaCompiler can only be used once, throw an exception if

         // it has been used before.

         assert !hasBeenUsed : "attempt to reuse JavaCompiler";

         hasBeenUsed = true;

         this.aggregateGenFiles = aggregateGenFiles;

         long msec = System.currentTimeMillis();

         ListBuffer<ClassSymbol> classes = new ListBuffer<ClassSymbol>();

         try {

             JavacFileManager fm = (JavacFileManager)fileManager;

             //parse all files

             ListBuffer<JCCompilationUnit> trees = new ListBuffer<JCCompilationUnit>();

             for (List<String> l = filenames; l.nonEmpty(); l = l.tail) {

                 if (classesAsDecls) {

                     if (! l.head.endsWith(".java") ) { // process as class file

                         ClassSymbol cs = reader.enterClass(names.fromString(l.head));

                         try {

                             cs.complete();

                         } catch(Symbol.CompletionFailure cf) {

                             bark.aptError("CantFindClass", l);

                             continue;

                         }

                         classes.append(cs); // add to list of classes

                         continue;

                     }

                 }

                 JavaFileObject fo = fm.getJavaFileObjectsFromStrings(List.of(l.head)).iterator().next();

                 trees.append(parse(fo));

             }

             //enter symbols for all files

             List<JCCompilationUnit> roots = trees.toList();

             if (errorCount() == 0) {

                 boolean prev = bark.setDiagnosticsIgnored(true);

                 try {

                     enter.main(roots);

                 }

                 finally {

                     bark.setDiagnosticsIgnored(prev);

                 }

             }

             if (errorCount() == 0) {

                 apt.main(roots,

                          classes,

                          origOptions, aptCL,

                          providedFactory,

                          productiveFactories);

                 genSourceFileNames.addAll(apt.getSourceFileNames());

                 genClassFileNames.addAll(apt.getClassFileNames());

             }

         } catch (Abort ex) {

         }

         if (verbose)

             printVerbose("total", Long.toString(System.currentTimeMillis() - msec));

         chk.reportDeferredDiagnostics();

         printCount("error", errorCount());

         printCount("warn", warningCount());

         return classes.toList();

     }

 }