jdk8-mips64-public/langtools: test/tools/javac/api/TestJavacTaskScanner.java@959103a6100f (annotated)

test/tools/javac/api/TestJavacTaskScanner.java@959103a6100f (annotated)

test/tools/javac/api/TestJavacTaskScanner.java

Wed, 27 Apr 2016 01:34:52 +0800

author: aoqi
date: Wed, 27 Apr 2016 01:34:52 +0800
changeset 0: 959103a6100f
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

 /*
  * Copyright (c) 2005, 2014, 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     4813736 8013256
  * @summary Additional functionality test of task and JSR 269
  * @author  Peter von der Ah\u00e9
  * @library ./lib
  * @build ToolTester
  * @run main TestJavacTaskScanner TestJavacTaskScanner.java
  */
 import com.sun.tools.javac.api.JavacTaskImpl;
 import com.sun.tools.javac.parser.*;
 import com.sun.tools.javac.parser.Tokens.Token;
 import com.sun.tools.javac.util.*;
 import java.io.*;
 import java.net.*;
 import java.nio.*;
 import java.nio.charset.Charset;
 import java.util.Arrays;
 import javax.lang.model.element.Element;
 import javax.lang.model.element.TypeElement;
 import javax.lang.model.type.DeclaredType;
 import javax.lang.model.type.TypeMirror;
 import javax.lang.model.util.Elements;
 import javax.lang.model.util.Types;
 import javax.tools.*;
 import static javax.tools.StandardLocation.CLASS_PATH;
 import static javax.tools.StandardLocation.SOURCE_PATH;
 import static javax.tools.StandardLocation.CLASS_OUTPUT;
 public class TestJavacTaskScanner extends ToolTester {
     final JavacTaskImpl task;
     final Elements elements;
     final Types types;
     int numTokens;
     int numParseTypeElements;
     int numAllMembers;
     TestJavacTaskScanner(File file) {
         final Iterable<? extends JavaFileObject> compilationUnits =
             fm.getJavaFileObjects(new File[] {file});
         StandardJavaFileManager fm = getLocalFileManager(tool, null, null);
         task = (JavacTaskImpl)tool.getTask(null, fm, null, null, null, compilationUnits);
         task.getContext().put(ScannerFactory.scannerFactoryKey,
                 new MyScanner.Factory(task.getContext(), this));
         elements = task.getElements();
         types = task.getTypes();
     }
     public void run() {
         Iterable<? extends TypeElement> toplevels;
         try {
             toplevels = task.enter(task.parse());
         } catch (IOException ex) {
             throw new AssertionError(ex);
         }
         for (TypeElement clazz : toplevels) {
             System.out.format("Testing %s:%n%n", clazz.getSimpleName());
             testParseType(clazz);
             testGetAllMembers(clazz);
             System.out.println();
             System.out.println();
             System.out.println();
         }
         System.out.println("#tokens: " + numTokens);
         System.out.println("#parseTypeElements: " + numParseTypeElements);
         System.out.println("#allMembers: " + numAllMembers);
         check(numTokens, "#Tokens", 1222);
         check(numParseTypeElements, "#parseTypeElements", 158);
         check(numAllMembers, "#allMembers", 52);
     }
     void check(int value, String name, int expected) {
         // allow some slop in the comparison to allow for minor edits in the
         // test and in the platform
         if (value < expected * 9 / 10)
             throw new Error(name + " lower than expected; expected " + expected + "; found: " + value);
         if (value > expected * 11 / 10)
             throw new Error(name + " higher than expected; expected " + expected + "; found: " + value);
     }
     void testParseType(TypeElement clazz) {
         DeclaredType type = (DeclaredType)task.parseType("List<String>", clazz);
         for (Element member : elements.getAllMembers((TypeElement)type.asElement())) {
             TypeMirror mt = types.asMemberOf(type, member);
             System.out.format("type#%d: %s : %s -> %s%n",
                 numParseTypeElements, member.getSimpleName(), member.asType(), mt);
             numParseTypeElements++;
         }
     }
     public static void main(String... args) throws IOException {
         String srcdir = System.getProperty("test.src");
         new TestJavacTaskScanner(new File(srcdir, args[0])).run();
     }
     private void testGetAllMembers(TypeElement clazz) {
         for (Element member : elements.getAllMembers(clazz)) {
             System.out.format("elem#%d: %s : %s%n",
                 numAllMembers, member.getSimpleName(), member.asType());
             numAllMembers++;
         }
     }
     /* Similar to ToolTester.getFileManager, except that this version also ensures
      * javac classes will be available on the classpath.  The javac classes are assumed
      * to be on the classpath used to run this test (this is true when using jtreg).
      * The classes are found by obtaining the URL for a sample javac class, using
      * getClassLoader().getResource(), and then deconstructing the URL to find the
      * underlying directory or jar file to place on the classpath.
      */
     public StandardJavaFileManager getLocalFileManager(JavaCompiler tool,
                                                         DiagnosticListener<JavaFileObject> dl,
                                                         Charset encoding) {
         File javac_classes;
         try {
             final String javacMainClass = "com/sun/tools/javac/Main.class";
             URL url = getClass().getClassLoader().getResource(javacMainClass);
             if (url == null)
                 throw new Error("can't locate javac classes");
             URI uri = url.toURI();
             String scheme = uri.getScheme();
             String ssp = uri.getSchemeSpecificPart();
             if (scheme.equals("jar")) {
                 javac_classes = new File(new URI(ssp.substring(0, ssp.indexOf("!/"))));
             } else if (scheme.equals("file")) {
                 javac_classes = new File(ssp.substring(0, ssp.indexOf(javacMainClass)));
             } else
                 throw new Error("unknown URL: " + url);
         } catch (URISyntaxException e) {
             throw new Error(e);
         }
         System.err.println("javac_classes: " + javac_classes);
         StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, encoding);
         try {
             fm.setLocation(SOURCE_PATH,  Arrays.asList(test_src));
             fm.setLocation(CLASS_PATH,   join(test_class_path, Arrays.asList(javac_classes)));
             fm.setLocation(CLASS_OUTPUT, Arrays.asList(test_classes));
         } catch (IOException e) {
             throw new AssertionError(e);
         }
         return fm;
     }
 }
 class MyScanner extends Scanner {
     public static class Factory extends ScannerFactory {
         public Factory(Context context, TestJavacTaskScanner test) {
             super(context);
             this.test = test;
         }
         @Override
         public Scanner newScanner(CharSequence input, boolean keepDocComments) {
             if (input instanceof CharBuffer) {
                 return new MyScanner(this, (CharBuffer)input, test);
             } else {
                 char[] array = input.toString().toCharArray();
                 return newScanner(array, array.length, keepDocComments);
             }
         }
         @Override
         public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) {
             return new MyScanner(this, input, inputLength, test);
         }
         private TestJavacTaskScanner test;
     }
     protected MyScanner(ScannerFactory fac, CharBuffer buffer, TestJavacTaskScanner test) {
         super(fac, buffer);
         this.test = test;
     }
     protected MyScanner(ScannerFactory fac, char[] input, int inputLength, TestJavacTaskScanner test) {
         super(fac, input, inputLength);
         this.test = test;
     }
     public void nextToken() {
         super.nextToken();
         Token tk = token();
         System.err.format("Saw token %s %n", tk.kind);
         test.numTokens++;
     }
     private TestJavacTaskScanner test;
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/api/TestJavacTaskScanner.java@959103a6100f (annotated)

test/tools/javac/api/TestJavacTaskScanner.java